/* roulang page: index */
:root {
            --color-primary: #173F35;
            --color-dark: #0E2520;
            --color-accent: #FF5722;
            --bg-paper: #F5F2EC;
            --radius: 4px;
            --font-sans: "HarmonyOS Sans SC", "Noto Sans CJK SC", "Microsoft YaHei", system-ui, -apple-system, "Inter", sans-serif;
            --shadow-soft: 0 12px 30px rgba(23, 63, 53, .06);
            --ink: #1F2A27;
            --muted: #5C6965;
            --line: #E5E0D8;
            --line-dark: #2E4A43;
        }

        html {
            -webkit-text-size-adjust: 100%;
        }

        body {
            margin: 0;
            background: var(--bg-paper);
            color: var(--ink);
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.75;
            -webkit-font-smoothing: antialiased;
        }

        *,
        *:before,
        *:after {
            box-sizing: border-box;
        }

        h1,
        h2,
        h3,
        h4,
        p,
        figure,
        ul,
        ol {
            margin: 0;
        }

        ul[class],
        ol[class] {
            list-style: none;
            padding: 0;
        }

        a {
            color: inherit;
            text-decoration: none;
        }

        img {
            max-width: 100%;
            display: block;
            height: auto;
        }

        button {
            font-family: inherit;
            border: 0;
            cursor: pointer;
            background: none;
        }

        input {
            font-family: inherit;
        }

        :focus-visible {
            outline: 2px solid var(--color-accent);
            outline-offset: 3px;
            border-radius: 2px;
        }

        .container {
            width: min(1280px, 92%);
            margin: 0 auto;
        }

        .container-narrow {
            width: min(760px, 92%);
            margin: 0 auto;
        }

        /* top info bar */
        .topbar {
            background: var(--color-dark);
            color: #e6eeea;
            font-size: .78rem;
            letter-spacing: .02em;
            min-height: 36px;
            display: flex;
            align-items: center;
        }

        .topbar-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            min-height: 36px;
            width: 100%;
        }

        .topbar-domain {
            color: #f9bfa6;
            font-weight: 700;
            font-family: "Inter", "HarmonyOS Sans SC", sans-serif;
        }

        .topbar-tip {
            opacity: .78;
            overflow: hidden;
            white-space: nowrap;
            text-overflow: ellipsis;
        }

        .topbar-link {
            color: #fff;
            border-bottom: 1px solid rgba(255, 255, 255, .4);
            transition: border-color .2s, color .2s;
            white-space: nowrap;
        }

        .topbar-link:hover {
            color: var(--color-accent);
            border-color: var(--color-accent);
        }

        /* header nav */
        .main-header {
            position: sticky;
            top: 0;
            background: #FCFAF6;
            z-index: 60;
            border-bottom: 1px solid var(--line);
            transition: background .25s, box-shadow .25s, border-color .25s;
        }

        .main-header.is-scrolled {
            background: rgba(252, 250, 246, .96);
            box-shadow: 0 10px 25px rgba(23, 63, 53, .05);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            min-height: 70px;
            gap: 22px;
        }

        .brand {
            display: inline-flex;
            align-items: baseline;
            gap: 6px;
            line-height: 1.15;
            white-space: nowrap;
        }

        .brand-name {
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--color-primary);
            letter-spacing: -.01em;
        }

        .brand-sub {
            font-size: .68rem;
            font-weight: 700;
            color: var(--muted);
            border: 1px solid var(--line);
            padding: 3px 7px;
            border-radius: 2px;
            letter-spacing: .12em;
            transform: translateY(-3px);
        }

        .nav-menu {
            display: flex;
            align-items: center;
            gap: 26px;
        }

        .nav-link {
            position: relative;
            font-size: .95rem;
            font-weight: 500;
            color: #33423e;
            padding: 8px 0;
            transition: color .2s;
        }

        .nav-link:after {
            content: "";
            position: absolute;
            left: 0;
            bottom: 0;
            width: 0;
            height: 2px;
            background: var(--color-accent);
            transition: width .22s ease;
        }

        .nav-link:hover {
            color: var(--color-primary);
        }

        .nav-link:hover:after {
            width: 100%;
        }

        .nav-link.active {
            font-weight: 700;
            color: var(--color-primary);
        }

        .nav-link.active:after {
            width: 100%;
            background: var(--color-primary);
        }

        .header-cta {
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            min-height: 44px;
            padding: 0 22px;
            border-radius: var(--radius);
            border: 1px solid transparent;
            font-weight: 700;
            font-size: .93rem;
            letter-spacing: .02em;
            transition: background .2s, border-color .2s, color .2s, transform .2s;
            white-space: nowrap;
        }

        .btn span {
            display: inline-block;
            transition: transform .2s;
        }

        .btn:hover span {
            transform: translateX(4px);
        }

        .btn-primary {
            background: var(--color-accent);
            color: #fff;
        }

        .btn-primary:hover {
            background: #db421c;
        }

        .btn-outline {
            background: transparent;
            border-color: var(--color-primary);
            color: var(--color-primary);
        }

        .btn-outline:hover {
            border-color: var(--color-accent);
            color: var(--color-accent);
        }

        .btn-ghost-light {
            background: transparent;
            border-color: rgba(255, 255, 255, .45);
            color: #fff;
        }

        .btn-ghost-light:hover {
            border-color: #fff;
            color: #fff;
        }

        .btn-white {
            background: #fff;
            color: var(--color-primary);
        }

        .btn-white:hover {
            background: #f0ede6;
        }

        .burger {
            width: 42px;
            height: 42px;
            display: none;
            align-items: center;
            justify-content: center;
            flex-direction: column;
            gap: 5px;
            border: 1px solid var(--line);
            border-radius: 4px;
        }

        .burger span {
            display: block;
            width: 18px;
            height: 2px;
            background: var(--color-primary);
            transition: transform .2s, opacity .2s;
        }

        .burger.is-open span:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }

        .burger.is-open span:nth-child(2) {
            opacity: 0;
        }

        .burger.is-open span:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }

        .mobile-drawer {
            position: fixed;
            inset: 0;
            background: rgba(14, 37, 32, .97);
            z-index: 99;
            padding: 90px 28px 40px;
            display: flex;
            flex-direction: column;
            opacity: 0;
            visibility: hidden;
            transition: opacity .25s, visibility .25s;
        }

        .mobile-drawer.open {
            opacity: 1;
            visibility: visible;
        }

        .drawer-nav a {
            display: block;
            color: #eef3f0;
            font-size: 1.35rem;
            font-weight: 600;
            padding: 14px 0;
            border-bottom: 1px solid var(--line-dark);
        }

        .drawer-nav a:hover,
        .drawer-nav a.active {
            color: #ff8a62;
        }

        .drawer-close {
            position: absolute;
            top: 20px;
            right: 20px;
            color: #fff;
            font-size: 1.8rem;
            line-height: 1;
            width: 44px;
            height: 44px;
        }

        /* hero */
        .hero {
            position: relative;
            min-height: calc(100vh - 36px);
            display: flex;
            align-items: center;
            overflow: hidden;
            color: #fff;
            background: var(--color-dark);
        }

        .hero-bg {
            position: absolute;
            inset: 0;
            background-image: linear-gradient(105deg, rgba(14, 37, 32, .98) 0%, rgba(14, 37, 32, .88) 48%, rgba(14, 37, 32, .58) 100%), url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center 22%;
        }

        .hero-bg:after {
            content: "";
            position: absolute;
            inset: 0;
            background-image: linear-gradient(180deg, transparent 80%, rgba(14, 37, 32, .9) 100%);
        }

        .hero-inner {
            position: relative;
            z-index: 2;
            padding: 90px 0 80px;
        }

        .hero-grid {
            display: grid;
            grid-template-columns: minmax(0, 1.2fr) minmax(0, .8fr);
            gap: 48px;
            align-items: center;
        }

        .eyebrow {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            font-size: .75rem;
            letter-spacing: .24em;
            text-transform: uppercase;
            color: #ffb298;
            border-bottom: 1px solid rgba(255, 87, 34, .5);
            padding-bottom: 8px;
            margin-bottom: 26px;
        }

        .hero h1 {
            font-size: clamp(2.2rem, 5vw, 4.3rem);
            line-height: 1.12;
            font-weight: 800;
            letter-spacing: -.03em;
            color: #fff;
            margin-bottom: 24px;
        }

        .hero h1 .hero-sub {
            display: block;
            font-size: .58em;
            color: #e2e9e5;
            font-weight: 600;
            letter-spacing: -.01em;
            margin-top: 16px;
        }

        .hero-lead {
            color: rgba(255, 255, 255, .78);
            font-size: 1.02rem;
            line-height: 1.9;
            max-width: 560px;
            margin-bottom: 34px;
        }

        .hero-buttons {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            margin-bottom: 44px;
        }

        .hero-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 10px 22px;
            color: rgba(255, 255, 255, .62);
            font-size: .82rem;
            letter-spacing: .05em;
        }

        .hero-art {
            position: relative;
            align-self: stretch;
            display: flex;
            align-items: center;
            justify-content: center;
            min-height: 400px;
        }

        .hero-panel {
            width: min(430px, 100%);
            margin-left: auto;
            background: rgba(23, 63, 53, .72);
            border: 1px solid rgba(255, 255, 255, .12);
            backdrop-filter: blur(2px);
            position: relative;
            overflow: hidden;
        }

        .hero-panel img {
            width: 100%;
            height: 280px;
            object-fit: cover;
            opacity: .9;
        }

        .hero-panel-body {
            padding: 22px;
        }

        .hero-panel-label {
            color: #ff9a75;
            font-size: .7rem;
            letter-spacing: .3em;
            text-transform: uppercase;
        }

        .hero-panel-title {
            font-size: 1.2rem;
            font-weight: 700;
            line-height: 1.45;
            margin-top: 8px;
            color: #fff;
        }

        .hero-panel-list {
            margin-top: 18px;
            border-top: 1px solid var(--line-dark);
            padding-top: 14px;
            font-size: .86rem;
            display: grid;
            gap: 8px;
            color: rgba(255, 255, 255, .8);
        }

        .scroll-cue {
            position: absolute;
            left: 50%;
            bottom: 22px;
            transform: translateX(-50%);
            font-size: .68rem;
            letter-spacing: .4em;
            color: rgba(255, 255, 255, .42);
            z-index: 5;
        }

        .scroll-cue:after {
            content: "↓";
            display: block;
            text-align: center;
            margin-top: 6px;
            font-size: 1rem;
            animation: cueDown 1.8s infinite ease-in-out;
        }

        @keyframes cueDown {
            0%,
            100% {
                transform: translateY(0);
            }
            50% {
                transform: translateY(7px);
            }
        }

        /* sections generic */
        .section {
            padding: 100px 0;
        }

        .section-paper {
            background: var(--bg-paper);
        }

        .section-white {
            background: #FCFAF6;
        }

        .section-inline {
            display: flex;
            align-items: flex-end;
            justify-content: space-between;
            gap: 24px;
            margin-bottom: 38px;
        }

        .sec-kicker {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            font-size: .75rem;
            font-weight: 700;
            letter-spacing: .28em;
            color: var(--color-accent);
            text-transform: uppercase;
            margin-bottom: 14px;
        }

        .sec-kicker:before {
            content: "";
            display: block;
            width: 24px;
            height: 2px;
            background: var(--color-accent);
        }

        .sec-title {
            font-size: clamp(1.7rem, 3vw, 2.6rem);
            line-height: 1.2;
            letter-spacing: -.02em;
            color: var(--color-primary);
            font-weight: 800;
        }

        .sec-lead {
            color: var(--muted);
            max-width: 64ch;
            margin-top: 14px;
            font-size: .98rem;
        }

        .sec-extra {
            white-space: nowrap;
            font-weight: 600;
            color: var(--color-primary);
            border-bottom: 1px solid var(--color-primary);
            padding-bottom: 3px;
            transition: color .2s, border-color .2s;
            font-size: .9rem;
        }

        .sec-extra:hover {
            color: var(--color-accent);
            border-color: var(--color-accent);
        }

        /* story */
        .story-grid {
            display: grid;
            grid-template-columns: .8fr 1.2fr;
            gap: 56px;
            align-items: start;
        }

        .story-left .block-quote {
            border-left: 3px solid var(--color-accent);
            padding-left: 30px;
            font-size: 1.2rem;
            line-height: 1.7;
            color: var(--color-primary);
            font-weight: 600;
            margin-top: 40px;
        }

        .story-left p {
            color: var(--muted);
        }

        .story-opening {
            font-size: 1.05rem;
            color: #22332f;
            line-height: 2;
            margin-bottom: 24px;
        }

        .value-list {
            display: grid;
            gap: 0;
            border-top: 1px solid var(--line);
            margin-top: 34px;
        }

        .value-item {
            display: grid;
            grid-template-columns: auto 1fr;
            gap: 22px;
            padding: 22px 0;
            border-bottom: 1px solid var(--line);
        }

        .value-index {
            font-size: 1.2rem;
            font-weight: 800;
            color: var(--color-accent);
            font-family: "Inter", var(--font-sans);
            padding-top: 2px;
        }

        .value-item h3 {
            font-size: 1.05rem;
            color: var(--color-primary);
            font-weight: 700;
            margin-bottom: 3px;
        }

        .value-item p {
            font-size: .93rem;
            color: var(--muted);
        }

        /* featured */
        .feature-grid {
            display: grid;
            grid-template-columns: minmax(0, 1.3fr) minmax(0, 1fr);
            gap: 26px;
            align-items: stretch;
        }

        .feature-large {
            position: relative;
            display: flex;
            flex-direction: column;
            justify-content: flex-end;
            min-height: 440px;
            background: var(--color-primary);
            color: #fff;
            overflow: hidden;
            border: 1px solid var(--color-primary);
        }

        .feature-large img {
            position: absolute;
            inset: 0;
            width: 100%;
            height: 100%;
            object-fit: cover;
            opacity: .72;
            transition: transform .6s ease;
        }

        .feature-large:hover img {
            transform: scale(1.04);
        }

        .feature-large:after {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(14, 37, 32, 0) 10%, rgba(10, 28, 23, .9) 100%);
        }

        .feature-large-body {
            position: relative;
            z-index: 2;
            padding: 34px;
        }

        .feature-large-cat,
        .feature-mini-cat {
            display: inline-block;
            font-size: .68rem;
            font-weight: 700;
            letter-spacing: .2em;
            padding: 4px 10px;
            background: rgba(255, 255, 255, .14);
            border: 1px solid rgba(255, 255, 255, .36);
            color: #fff;
            border-radius: 2px;
            margin-bottom: 14px;
            text-transform: uppercase;
        }

        .feature-large h3 {
            font-size: clamp(1.4rem, 2vw, 2.1rem);
            line-height: 1.3;
            font-weight: 800;
            margin-bottom: 10px;
            max-width: 18em;
        }

        .feature-large p {
            color: rgba(255, 255, 255, .72);
            font-size: .94rem;
            max-width: 38em;
            margin-bottom: 20px;
        }

        .text-link-light {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: .9rem;
            font-weight: 700;
            color: #fff;
            border-bottom: 1px solid rgba(255, 255, 255, .5);
            transition: color .2s, border-color .2s;
            padding-bottom: 2px;
        }

        .text-link-light:hover {
            color: #ff9a75;
            border-color: #ff9a75;
        }

        .feature-side {
            display: grid;
            grid-template-rows: repeat(2, minmax(0, 1fr));
            gap: 26px;
        }

        .feature-mini {
            background: #fff;
            border: 1px solid var(--line);
            display: grid;
            grid-template-columns: minmax(0, 1fr) minmax(0, 1.1fr);
            overflow: hidden;
            transition: border-color .2s;
            min-height: 196px;
        }

        .feature-mini:hover {
            border-color: var(--color-primary);
        }

        .feature-mini .mini-img {
            overflow: hidden;
        }

        .feature-mini .mini-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .5s ease;
        }

        .feature-mini:hover .mini-img img {
            transform: scale(1.05);
        }

        .feature-mini-body {
            padding: 20px;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
        }

        .feature-mini-cat {
            color: var(--color-primary);
            border-color: var(--line);
            background: #f7f4ee;
            width: fit-content;
            margin-bottom: 12px;
        }

        .feature-mini h3 {
            font-size: 1.06rem;
            line-height: 1.5;
            color: var(--ink);
            font-weight: 700;
            margin-bottom: 4px;
        }

        .feature-mini p {
            color: var(--muted);
            font-size: .84rem;
            line-height: 1.6;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .feature-mini .mini-more {
            font-size: .84rem;
            font-weight: 700;
            color: var(--color-accent);
        }

        /* channels */
        .channels {
            background: #fff;
            border-top: 1px solid var(--line);
            border-bottom: 1px solid var(--line);
        }

        .channel-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 0;
            background: #fff;
        }

        .channel-item {
            padding: 48px 32px;
            border-left: 1px solid var(--line);
            background: #fff;
            position: relative;
            transition: background .2s;
            min-height: 230px;
            display: flex;
            flex-direction: column;
        }

        .channel-item:first-child {
            border-left: 0;
        }

        .channel-item:hover {
            background: #F5F2EC;
        }

        .channel-item .chan-index {
            font-size: .8rem;
            font-weight: 800;
            letter-spacing: .2em;
            color: var(--color-accent);
            margin-bottom: 18px;
        }

        .channel-item h3 {
            font-size: 1.18rem;
            font-weight: 800;
            color: var(--color-primary);
            margin-bottom: 8px;
            line-height: 1.35;
        }

        .channel-item p {
            font-size: .87rem;
            line-height: 1.7;
            color: var(--muted);
            flex: 1;
        }

        .channel-item .channel-go {
            margin-top: 22px;
            color: var(--color-primary);
            font-size: .85rem;
            font-weight: 700;
        }

        .channel-item .channel-go span {
            display: inline-block;
            transition: transform .2s;
        }

        .channel-item:hover .channel-go span {
            transform: translateX(4px);
        }

        /* CMS dynamic list */

        .latest {
            background: var(--color-dark);
            color: #fff;
        }

        .latest .sec-kicker {
            color: #ff9a75;
        }

        .latest .sec-kicker:before {
            background: #ff9a75;
        }

        .latest .sec-title {
            color: #fff;
        }

        .latest .sec-lead {
            color: rgba(255, 255, 255, .68);
        }

        .latest .sec-extra {
            color: #fff;
            border-color: rgba(255, 255, 255, .45);
        }

        .latest-archive-grid {
            display: grid;
            grid-template-columns: repeat(2, minmax(0, 1fr));
            gap: 18px;
        }

        .news-item {
            display: block;
            background: rgba(255, 255, 255, .04);
            border: 1px solid var(--line-dark);
            border-radius: 2px;
            padding: 25px 26px;
            transition: background .2s, border-color .2s, transform .2s;
            height: 100%;
        }

        .news-item:hover {
            background: rgba(255, 255, 255, .07);
            border-color: #ff835a;
            transform: translateY(-3px);
        }

        .news-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 14px;
            margin-bottom: 12px;
        }

        .badge {
            display: inline-block;
            font-size: .68rem;
            font-weight: 700;
            letter-spacing: .14em;
            padding: 4px 10px;
            border: 1px solid rgba(255, 255, 255, .3);
            color: #ffb79c;
            border-radius: 2px;
            text-transform: uppercase;
            background: rgba(255, 87, 34, .08);
        }

        .news-date {
            color: rgba(255, 255, 255, .5);
            font-size: .78rem;
            font-family: "Inter", var(--font-sans);
            letter-spacing: .1em;
            white-space: nowrap;
        }

        .news-item h3 {
            font-size: 1.13rem;
            line-height: 1.5;
            font-weight: 700;
            color: #fff;
            margin-bottom: 10px;
        }

        .news-item p {
            color: rgba(255, 255, 255, .62);
            font-size: .87rem;
            line-height: 1.7;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            margin-bottom: 12px;
        }

        .news-more {
            color: #ff9a75;
            font-size: .85rem;
            font-weight: 700;
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .news-item:hover .news-more {
            text-decoration: underline;
        }

        .empty-state-cms {
            grid-column: 1 / -1;
            border: 1px dashed rgba(255, 255, 255, .22);
            padding: 64px 24px;
            text-align: center;
            color: rgba(255, 255, 255, .58);
            font-size: .96rem;
        }

        .empty-state-cms .empty-glyph {
            display: block;
            width: 46px;
            height: 46px;
            border: 1px solid rgba(255, 255, 255, .4);
            border-radius: 50%;
            margin: 0 auto 18px;
            position: relative;
        }

        .empty-state-cms .empty-glyph:before,
        .empty-state-cms .empty-glyph:after {
            content: "";
            position: absolute;
            left: 21px;
            top: 10px;
            width: 1px;
            height: 25px;
            background: rgba(255, 255, 255, .4);
        }

        .empty-state-cms .empty-glyph:before {
            transform: rotate(35deg);
        }

        .empty-state-cms .empty-glyph:after {
            transform: rotate(-35deg);
        }

        /* trust */
        .trust-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 18px;
        }

        .trust-panel {
            background: #FCFAF6;
            border: 1px solid var(--line);
            padding: 38px 36px;
            position: relative;
        }

        .trust-panel .trust-num {
            font-size: 2.8rem;
            line-height: 1;
            font-weight: 800;
            letter-spacing: -.03em;
            color: var(--color-primary);
            font-family: "Inter", var(--font-sans);
            margin-bottom: 12px;
        }

        .trust-panel .trust-num small {
            font-size: 1rem;
        }

        .trust-panel h3 {
            font-size: 1rem;
            font-weight: 800;
            color: var(--ink);
            margin-bottom: 4px;
        }

        .trust-panel p {
            font-size: .88rem;
            color: var(--muted);
        }

        .trust-note {
            margin-top: 26px;
            padding: 18px 20px;
            background: var(--color-primary);
            color: #fff;
            font-size: .9rem;
            text-align: center;
            letter-spacing: .03em;
        }

        /* faq */
        .faq-wrap {
            max-width: 820px;
            margin: 0 auto;
        }

        .faq-item {
            border-bottom: 1px solid var(--line);
            background: transparent;
        }

        .faq-item:first-child {
            border-top: 1px solid var(--line);
        }

        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 18px;
            text-align: left;
            padding: 22px 2px;
            font-size: 1rem;
            font-weight: 700;
            color: var(--ink);
            transition: color .2s;
            line-height: 1.5;
        }

        .faq-question .q {
            color: var(--color-accent);
            margin-right: 4px;
            font-family: "Inter", var(--font-sans);
        }

        .faq-question:hover {
            color: var(--color-primary);
        }

        .faq-icon {
            flex: 0 0 auto;
            width: 26px;
            height: 26px;
            border: 1px solid var(--line);
            border-radius: 50%;
            position: relative;
            transition: background .2s, border-color .2s, transform .2s;
        }

        .faq-icon:before,
        .faq-icon:after {
            content: "";
            position: absolute;
            background: var(--color-primary);
            left: 50%;
            top: 50%;
            transition: background .2s;
        }

        .faq-icon:before {
            width: 10px;
            height: 2px;
            transform: translate(-50%, -50%);
        }

        .faq-icon:after {
            width: 2px;
            height: 10px;
            transform: translate(-50%, -50%);
        }

        .faq-item.open .faq-icon {
            transform: rotate(135deg);
            border-color: var(--color-accent);
        }

        .faq-item.open .faq-icon:before,
        .faq-item.open .faq-icon:after {
            background: var(--color-accent);
        }

        .faq-answer {
            display: none;
            padding: 0 0 24px;
            color: var(--muted);
            line-height: 1.85;
            font-size: .94rem;
            max-width: 68ch;
        }

        .faq-answer strong {
            color: var(--ink);
        }

        .faq-item.open .faq-answer {
            display: block;
        }

        /* cta */
        .cta-area {
            position: relative;
            background: linear-gradient(120deg, #0E2520 0%, #173F35 70%, #1e5147 100%);
            color: #fff;
            overflow: hidden;
        }

        .cta-area:after {
            content: "";
            position: absolute;
            right: -80px;
            bottom: -80px;
            width: 280px;
            height: 280px;
            border: 1px solid rgba(255, 255, 255, .1);
            transform: rotate(20deg);
            pointer-events: none;
        }

        .cta-inner {
            display: grid;
            align-items: center;
            gap: 36px;
            grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr);
        }

        .cta-kicker {
            color: #ff9a75;
            font-size: .74rem;
            letter-spacing: .3em;
            font-weight: 700;
            margin-bottom: 14px;
            text-transform: uppercase;
        }

        .cta-area h2 {
            font-size: clamp(1.8rem, 3vw, 2.6rem);
            line-height: 1.2;
            letter-spacing: -.02em;
            margin-bottom: 14px;
            color: #fff;
        }

        .cta-area p {
            color: rgba(255, 255, 255, .7);
            max-width: 48ch;
            font-size: .96rem;
        }

        .subscribe-form {
            background: rgba(255, 255, 255, .06);
            border: 1px solid rgba(255, 255, 255, .16);
            padding: 28px;
        }

        .subscribe-form label {
            display: block;
            font-size: .78rem;
            color: rgba(255, 255, 255, .8);
            margin-bottom: 10px;
            letter-spacing: .08em;
        }

        .email-row {
            display: flex;
            gap: 10px;
            flex-wrap: wrap;
        }

        .email-row input {
            flex: 1 1 220px;
            background: #fff;
            border: 1px solid transparent;
            border-radius: var(--radius);
            height: 46px;
            padding: 0 16px;
            font-size: .9rem;
            color: var(--ink);
            transition: border-color .2s;
        }

        .email-row input:focus {
            outline: none;
            border-color: var(--color-accent);
        }

        .subscribe-hint {
            font-size: .75rem;
            color: rgba(255, 255, 255, .42);
            margin-top: 12px;
        }

        /* footer */
        .site-footer {
            background: #0B1F1B;
            color: rgba(255, 255, 255, .66);
            padding: 68px 0 30px;
            border-top: 2px solid #1E5147;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1.1fr;
            gap: 48px;
            margin-bottom: 46px;
        }

        .footer-brand .brand-name {
            color: #fff;
        }

        .footer-brand .brand-sub {
            color: rgba(255, 255, 255, .55);
            border-color: rgba(255, 255, 255, .22);
        }

        .footer-brand p {
            font-size: .88rem;
            color: rgba(255, 255, 255, .5);
            margin-top: 18px;
            line-height: 1.8;
            max-width: 30ch;
        }

        .footer-col h4 {
            color: #fff;
            font-size: .82rem;
            font-weight: 700;
            letter-spacing: .2em;
            margin-bottom: 18px;
            text-transform: uppercase;
        }

        .footer-col a {
            display: block;
            font-size: .9rem;
            color: rgba(255, 255, 255, .58);
            padding: 4px 0;
            transition: color .2s, padding-left .2s;
        }

        .footer-col a:hover {
            color: #ff9a75;
            padding-left: 4px;
        }

        .qr-slot {
            width: 88px;
            height: 88px;
            border: 1px dashed rgba(255, 255, 255, .4);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: .62rem;
            color: rgba(255, 255, 255, .4);
            letter-spacing: .14em;
            text-align: center;
            margin-bottom: 14px;
        }

        .footer-copy {
            border-top: 1px solid var(--line-dark);
            padding-top: 24px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            flex-wrap: wrap;
            font-size: .76rem;
            color: rgba(255, 255, 255, .38);
        }

        .footer-copy a {
            color: rgba(255, 255, 255, .5);
        }

        .footer-copy a:hover {
            color: #ff9a75;
        }

        /* responsive */
        @media (max-width: 1024px) {
            .section {
                padding: 80px 0;
            }

            .nav-menu {
                gap: 15px;
            }

            .nav-link {
                font-size: .88rem;
            }

            .hero-grid {
                grid-template-columns: 1fr;
                gap: 40px;
            }

            .hero {
                min-height: auto;
            }

            .hero-art {
                min-height: 220px;
            }

            .hero-panel {
                width: 100%;
            }

            .story-grid {
                grid-template-columns: 1fr;
                gap: 26px;
            }

            .feature-grid {
                grid-template-columns: 1fr;
            }

            .feature-side {
                grid-template-rows: none;
            }

            .feature-mini {
                min-height: 160px;
            }

            .channel-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .channel-item {
                border-top: 1px solid var(--line);
            }

            .channel-item:nth-child(-n+2) {
                border-top: 0;
            }

            .channel-item:nth-child(odd) {
                border-left: 0;
            }

            .trust-grid {
                grid-template-columns: 1fr;
            }

            .cta-inner {
                grid-template-columns: 1fr;
            }

            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 36px;
            }
        }

        @media (max-width: 768px) {
            .topbar-tip {
                display: none;
            }

            .topbar-domain {
                font-size: .76rem;
            }

            .nav-menu,
            .header-cta .btn {
                display: none;
            }

            .burger {
                display: flex;
            }

            .section {
                padding: 58px 0;
            }

            .section-inline {
                flex-direction: column;
                align-items: flex-start;
                margin-bottom: 28px;
            }

            .sec-extra {
                white-space: normal;
            }

            .hero h1 {
                font-size: clamp(1.8rem, 6vw, 3rem);
            }

            .hero-inner {
                padding: 60px 0 70px;
            }

            .scroll-cue {
                display: none;
            }

            .latest-archive-grid {
                grid-template-columns: 1fr;
            }

            .channel-grid {
                grid-template-columns: 1fr;
            }

            .channel-item {
                border-top: 1px solid var(--line);
                border-left: 0;
                min-height: 0;
            }

            .channel-item:first-child {
                border-top: 0;
            }

            .feature-mini {
                grid-template-columns: 1fr;
                min-height: 0;
            }

            .feature-mini .mini-img img {
                height: 180px;
            }

            .footer-grid {
                grid-template-columns: 1fr;
            }

            .footer-copy {
                flex-direction: column;
                text-align: center;
            }

            .hero-panel-list {
                font-size: .8rem;
            }

            .hero-panel img {
                height: 220px;
            }
        }

        @media (max-width: 520px) {
            .topbar-domain {
                flex: 1;
            }

            .feature-mini-body {
                padding: 16px;
            }

            .feature-large-body {
                padding: 24px;
            }

            .trust-panel {
                padding: 26px 22px;
            }

            .value-item {
                grid-template-columns: 1fr;
                gap: 6px;
            }

            .faq-question {
                font-size: .92rem;
                align-items: flex-start;
            }

            .email-row .btn {
                width: 100%;
            }
        }

/* roulang page: article */
:root {
        --color-primary: #173F35;
        --color-dark: #0E2520;
        --color-accent: #FF5722;
        --bg-paper: #F5F2EC;
        --card-bg: #FFFFFF;
        --text-main: #1F2A27;
        --text-muted: #5C6965;
        --text-light: #9AA5A0;
        --border-line: #E5E0D8;
        --border-deep: #2E4A43;
        --radius: 4px;
        --font-sans: "HarmonyOS Sans SC", "Noto Sans CJK SC", "PingFang SC", "Microsoft YaHei", sans-serif;
        --font-mono: "Inter", "Space Grotesk", "SFMono-Regular", Consolas, monospace;
        --shadow-soft: 0 12px 30px rgba(23, 63, 53, .06);
    }

    * {
        box-sizing: border-box;
    }

    html {
        scroll-behavior: smooth;
    }

    body {
        margin: 0;
        background: var(--bg-paper);
        color: var(--text-main);
        font-family: var(--font-sans);
        line-height: 1.7;
        -webkit-font-smoothing: antialiased;
    }

    img {
        max-width: 100%;
        display: block;
    }

    a {
        color: inherit;
        text-decoration: none;
    }

    button {
        font: inherit;
        border: 0;
        cursor: pointer;
        background: none;
    }

    input {
        font: inherit;
    }

    .container {
        max-width: 1280px;
        margin: 0 auto;
        padding: 0 32px;
    }

    a:focus-visible,
    button:focus-visible {
        outline: 2px solid var(--color-accent);
        outline-offset: 3px;
        border-radius: 3px;
    }

    .main-header {
        position: sticky;
        top: 0;
        z-index: 100;
        background: rgba(245, 242, 236, .88);
        -webkit-backdrop-filter: blur(12px);
        backdrop-filter: blur(12px);
        border-bottom: 1px solid transparent;
        transition: background .3s ease, border-color .3s ease, box-shadow .3s ease;
    }

    .main-header.is-scrolled {
        background: #FCFAF6;
        border-bottom-color: var(--border-line);
        box-shadow: 0 6px 24px rgba(14, 37, 32, .04);
    }

    .header-inner {
        min-height: 72px;
        display: flex;
        align-items: center;
        gap: 36px;
    }

    .brand {
        display: flex;
        align-items: baseline;
        gap: 8px;
        flex-shrink: 0;
        line-height: 1.15;
    }

    .brand-name {
        font-size: 1.5rem;
        font-weight: 800;
        color: var(--color-dark);
        letter-spacing: .02em;
    }

    .brand-sub {
        font-size: .72rem;
        font-weight: 600;
        color: var(--color-primary);
        border: 1px solid rgba(23, 63, 53, .45);
        padding: 3px 8px;
        border-radius: 3px;
        letter-spacing: .08em;
        white-space: nowrap;
    }

    .nav-menu {
        display: flex;
        align-items: center;
        gap: 24px;
        margin-left: auto;
    }

    .nav-link {
        position: relative;
        font-size: .95rem;
        font-weight: 500;
        color: var(--text-main);
        padding: 8px 2px;
        transition: color .25s ease;
    }

    .nav-link::after {
        content: "";
        position: absolute;
        left: 0;
        bottom: 0;
        width: 100%;
        height: 2px;
        background: var(--color-accent);
        transform: scaleX(0);
        transform-origin: left center;
        transition: transform .3s ease;
    }

    .nav-link:hover {
        color: var(--color-accent);
    }

    .nav-link:hover::after,
    .nav-link.active::after {
        transform: scaleX(1);
    }

    .nav-link.active {
        color: var(--color-primary);
        font-weight: 700;
    }

    .header-cta {
        display: flex;
        align-items: center;
        gap: 16px;
        flex-shrink: 0;
    }

    .btn {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        gap: 8px;
        min-height: 44px;
        padding: 0 22px;
        border-radius: var(--radius);
        font-size: .95rem;
        font-weight: 600;
        line-height: 1;
        border: 1px solid transparent;
        transition: background .25s ease, color .25s ease, border-color .25s ease, transform .25s ease;
    }

    .btn span {
        display: inline-block;
        transition: transform .25s ease;
    }

    .btn-primary {
        background: var(--color-accent);
        color: #fff;
        border-color: var(--color-accent);
    }

    .btn-primary:hover {
        background: #d94416;
        border-color: #d94416;
    }

    .btn-primary:hover span {
        transform: translateX(4px);
    }

    .btn-outline {
        background: transparent;
        color: var(--color-primary);
        border-color: rgba(23, 63, 53, .65);
    }

    .btn-outline:hover {
        color: var(--color-accent);
        border-color: var(--color-accent);
    }

    .btn-outline:hover span {
        transform: translateX(-4px);
    }

    .btn-light {
        background: #fff;
        color: var(--color-primary);
        border-color: #fff;
    }

    .btn-light:hover {
        background: #F5F2EC;
        border-color: #F5F2EC;
    }

    .burger {
        display: none;
        width: 44px;
        height: 44px;
        border-radius: 4px;
        border: 1px solid var(--border-line);
        background: #fff;
        flex-direction: column;
        align-items: center;
        justify-content: center;
        gap: 5px;
        transition: border-color .25s ease;
    }

    .burger:hover {
        border-color: var(--color-primary);
    }

    .burger span {
        display: block;
        width: 22px;
        height: 2px;
        background: var(--color-dark);
        transition: background .3s ease, transform .3s ease, opacity .3s ease;
    }

    .main-header.nav-open .burger span:nth-child(1) {
        transform: translateY(7px) rotate(45deg);
    }

    .main-header.nav-open .burger span:nth-child(2) {
        opacity: 0;
    }

    .main-header.nav-open .burger span:nth-child(3) {
        transform: translateY(-7px) rotate(-45deg);
    }

    .main-header.nav-open {
        background: #FCFAF6;
    }

    .article-hero {
        position: relative;
        background-color: var(--color-dark);
        background-size: cover;
        background-position: center;
        color: #fff;
        padding: 84px 0 92px;
        overflow: hidden;
    }

    .article-hero::before {
        content: "";
        position: absolute;
        inset: 0;
        background: linear-gradient(90deg, rgba(14, 37, 32, .94) 0%, rgba(14, 37, 32, .78) 50%, rgba(14, 37, 32, .46) 100%);
        z-index: 1;
    }

    .article-hero .container {
        position: relative;
        z-index: 2;
    }

    .breadcrumb {
        display: flex;
        flex-wrap: wrap;
        align-items: center;
        gap: 8px;
        font-size: .86rem;
        color: rgba(255, 255, 255, .72);
        margin-bottom: 28px;
        letter-spacing: .02em;
    }

    .breadcrumb a {
        color: rgba(255, 255, 255, .72);
        transition: color .2s ease;
    }

    .breadcrumb a:hover {
        color: #FF5722;
    }

    .breadcrumb .sep {
        opacity: .45;
    }

    .post-kicker {
        display: inline-flex;
        align-items: center;
        gap: 10px;
        font-size: .8rem;
        color: rgba(255, 255, 255, .85);
        border: 1px solid rgba(255, 255, 255, .25);
        padding: 4px 12px;
        border-radius: 3px;
        letter-spacing: .06em;
        margin-bottom: 18px;
    }

    .article-hero h1 {
        font-size: clamp(2rem, 4.4vw, 3.6rem);
        line-height: 1.2;
        font-weight: 800;
        max-width: 960px;
        margin: 0 0 26px;
        letter-spacing: -.01em;
    }

    .article-meta {
        display: flex;
        flex-wrap: wrap;
        align-items: center;
        gap: 18px;
        color: rgba(255, 255, 255, .72);
        font-size: .9rem;
        padding-top: 4px;
    }

    .article-meta span {
        display: inline-flex;
        align-items: center;
        gap: 6px;
    }

    .article-meta .dot {
        width: 3px;
        height: 3px;
        background: rgba(255, 255, 255, .55);
        border-radius: 50%;
    }

    .post-rail {
        max-width: 820px;
        margin: 0 auto;
        padding: 2px 0 0;
    }

    .post-wrap {
        margin-top: -40px;
        position: relative;
        z-index: 5;
    }

    .post-panel {
        background: #FFFFFF;
        border: 1px solid var(--border-line);
        border-radius: 3px;
        box-shadow: 0 24px 60px rgba(23, 63, 53, .08);
        padding: clamp(24px, 5vw, 54px);
    }

    .post-excerpt {
        border-left: 3px solid var(--color-accent);
        padding: 8px 0 8px 24px;
        margin: 0 0 44px;
        background: #FCFAF6;
        border-top-right-radius: 3px;
        border-bottom-right-radius: 3px;
    }

    .post-excerpt .excerpt-label {
        font-size: .78rem;
        font-weight: 700;
        letter-spacing: .14em;
        color: var(--color-accent);
        text-transform: uppercase;
    }

    .post-excerpt p {
        margin: 10px 0 0;
        color: var(--text-muted);
        font-size: 1rem;
        line-height: 1.9;
    }

    .rich-text {
        color: var(--text-main);
        font-size: 1.02rem;
        line-height: 1.95;
    }

    .rich-text p {
        margin: 0 0 1.5em;
    }

    .rich-text h2,
    .rich-text h3 {
        margin: 1.8em 0 .75em;
        color: var(--color-dark);
        line-height: 1.3;
        font-weight: 800;
    }

    .rich-text h2 {
        font-size: 1.6rem;
        padding-left: 14px;
        border-left: 4px solid var(--color-accent);
    }

    .rich-text h3 {
        font-size: 1.28rem;
    }

    .rich-text blockquote {
        margin: 1.8em 0;
        padding: 18px 22px;
        border-left: 3px solid var(--color-primary);
        background: #FCFAF6;
        color: var(--text-muted);
        border-radius: 0 3px 3px 0;
    }

    .rich-text ul,
    .rich-text ol {
        margin: 0 0 1.6em;
        padding-left: 1.3em;
    }

    .rich-text li {
        margin-bottom: .5em;
    }

    .rich-text a {
        color: var(--color-primary);
        border-bottom: 1px solid rgba(23, 63, 53, .35);
        transition: color .2s ease, border-color .2s ease;
    }

    .rich-text a:hover {
        color: var(--color-accent);
        border-color: var(--color-accent);
    }

    .rich-text img {
        margin: 1.8em 0;
        border: 1px solid var(--border-line);
        border-radius: 4px;
    }

    .rich-text figure {
        margin: 1.8em 0;
    }

    .rich-text figcaption {
        text-align: center;
        font-size: .85rem;
        color: var(--text-muted);
        margin-top: 10px;
    }

    .tag-line {
        display: flex;
        flex-wrap: wrap;
        gap: 10px;
        margin: 40px 0 0;
        padding-top: 22px;
        border-top: 1px solid var(--border-line);
        align-items: center;
    }

    .mini-tag {
        display: inline-flex;
        align-items: center;
        min-height: 28px;
        padding: 0 12px;
        border: 1px solid var(--border-line);
        border-radius: 3px;
        font-size: .8rem;
        color: var(--color-primary);
        background: var(--bg-paper);
        transition: border-color .2s ease, color .2s ease;
    }

    .mini-tag:hover {
        border-color: var(--color-accent);
        color: var(--color-accent);
    }

    .related-section {
        background: var(--bg-paper);
        padding: 96px 0 80px;
    }

    .section-heading {
        display: flex;
        align-items: flex-end;
        justify-content: space-between;
        gap: 20px;
        margin-bottom: 36px;
    }

    .section-kicker {
        font-size: .82rem;
        font-weight: 700;
        letter-spacing: .18em;
        color: var(--color-accent);
        display: block;
        margin-bottom: 6px;
    }

    .section-title {
        font-size: clamp(1.6rem, 2.8vw, 2.4rem);
        line-height: 1.25;
        color: var(--color-dark);
        margin: 0;
        font-weight: 800;
    }

    .section-desc {
        max-width: 480px;
        color: var(--text-muted);
        font-size: .95rem;
        margin: 8px 0 0;
    }

    .link-all {
        color: var(--color-primary);
        font-size: .95rem;
        font-weight: 600;
        padding: 6px 0;
        border-bottom: 1px solid rgba(23, 63, 53, .25);
        transition: color .2s ease, border-color .2s ease;
        white-space: nowrap;
    }

    .link-all:hover {
        color: var(--color-accent);
        border-color: var(--color-accent);
    }

    .related-grid {
        display: grid;
        grid-template-columns: repeat(3, 1fr);
        gap: 24px;
    }

    .rel-card {
        display: block;
        background: #FFFFFF;
        border: 1px solid var(--border-line);
        border-radius: 3px;
        overflow: hidden;
        box-shadow: none;
        transition: transform .28s ease, border-color .28s ease, box-shadow .28s ease;
    }

    .rel-card:hover {
        border-color: var(--color-primary);
        transform: translateY(-5px);
        box-shadow: 0 20px 40px rgba(23, 63, 53, .1);
    }

    .rel-cover {
        aspect-ratio: 16 / 9;
        overflow: hidden;
        position: relative;
        background: #e9e5dd;
    }

    .rel-cover img {
        width: 100%;
        height: 100%;
        object-fit: cover;
        transition: transform .4s ease;
    }

    .rel-card:hover .rel-cover img {
        transform: scale(1.05);
    }

    .rel-info {
        padding: 20px 22px 24px;
    }

    .rel-info h3 {
        font-size: 1.05rem;
        line-height: 1.45;
        margin: 0 0 8px;
        color: var(--color-dark);
        transition: color .2s ease;
        font-weight: 700;
    }

    .rel-card:hover .rel-info h3 {
        color: var(--color-accent);
    }

    .rel-meta {
        font-size: .82rem;
        color: var(--text-muted);
    }

    .rel-cat {
        display: inline-block;
        font-size: .72rem;
        color: var(--color-primary);
        border: 1px solid rgba(23, 63, 53, .35);
        border-radius: 3px;
        padding: 2px 8px;
        margin-right: 8px;
        vertical-align: middle;
    }

    .back-action {
        text-align: center;
        margin-top: 44px;
    }

    .cta-band {
        background: var(--color-dark);
        padding: 84px 0;
        color: #fff;
        position: relative;
    }

    .cta-band::after {
        content: "";
        position: absolute;
        right: 0;
        bottom: 0;
        width: 340px;
        height: 340px;
        border: 1px solid rgba(255, 255, 255, .08);
        border-radius: 50%;
        transform: translate(30%, 30%);
    }

    .cta-inner {
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 30px;
        position: relative;
        z-index: 2;
    }

    .cta-inner h2 {
        font-size: clamp(1.8rem, 3.2vw, 2.7rem);
        line-height: 1.25;
        margin: 0 0 12px;
        font-weight: 800;
    }

    .cta-inner p {
        color: rgba(255, 255, 255, .68);
        margin: 0;
        max-width: 600px;
        font-size: 1rem;
    }

    .cta-btns {
        display: flex;
        align-items: center;
        gap: 12px;
        flex-shrink: 0;
    }

    .site-footer {
        background: #0A211C;
        color: rgba(255, 255, 255, .76);
        padding: 70px 0 0;
        border-top: 4px solid var(--color-accent);
    }

    .footer-grid {
        display: grid;
        grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
        gap: 48px;
        padding-bottom: 44px;
    }

    .footer-brand .brand {
        margin-bottom: 18px;
    }

    .footer-brand .brand-name {
        color: #fff;
    }

    .footer-brand .brand-sub {
        color: #FF8A66;
        border-color: rgba(255, 138, 102, .45);
    }

    .footer-brand p {
        color: rgba(255, 255, 255, .55);
        font-size: .9rem;
        line-height: 1.8;
        margin: 0;
        max-width: 260px;
    }

    .site-footer h4 {
        font-size: .86rem;
        color: #fff;
        letter-spacing: .08em;
        margin: 0 0 18px;
        font-weight: 700;
    }

    .footer-col {
        display: flex;
        flex-direction: column;
        gap: 10px;
        align-items: flex-start;
    }

    .footer-col a {
        color: rgba(255, 255, 255, .6);
        font-size: .9rem;
        line-height: 1.55;
        transition: color .2s ease, transform .2s ease;
    }

    .footer-col a:hover {
        color: #FF8A66;
        transform: translateX(3px);
    }

    .qr-slot {
        width: 88px;
        height: 88px;
        border: 1px dashed rgba(255, 255, 255, .35);
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: .8rem;
        color: rgba(255, 255, 255, .35);
        letter-spacing: .1em;
        margin-bottom: 4px;
        border-radius: 3px;
        background: rgba(255, 255, 255, .03);
    }

    .footer-copy {
        border-top: 1px solid #2E4A43;
        padding: 20px 0;
        display: flex;
        justify-content: space-between;
        gap: 12px;
        font-size: .84rem;
        color: rgba(255, 255, 255, .42);
        flex-wrap: wrap;
    }

    .footer-copy a {
        color: rgba(255, 255, 255, .56);
    }

    .footer-copy a:hover {
        color: #FF8A66;
    }

    .nf-section {
        padding: 120px 0 140px;
    }

    .nf-card {
        max-width: 620px;
        margin: 0 auto;
        background: #fff;
        border: 1px solid var(--border-line);
        border-radius: 4px;
        text-align: center;
        padding: 70px 48px;
        box-shadow: 0 20px 60px rgba(23, 63, 53, .06);
        position: relative;
        overflow: hidden;
    }

    .nf-card::before {
        content: "";
        position: absolute;
        top: 0;
        left: 0;
        right: 0;
        height: 4px;
        background: var(--color-accent);
    }

    .nf-code {
        font-family: var(--font-mono);
        font-size: 2rem;
        font-weight: 700;
        color: var(--color-accent);
        letter-spacing: .08em;
    }

    .nf-card h1 {
        font-size: 1.9rem;
        margin: 14px 0 12px;
        color: var(--color-dark);
    }

    .nf-card p {
        color: var(--text-muted);
        margin-bottom: 28px;
    }

    .single-line {
        display: flex;
        flex-wrap: wrap;
        gap: 10px;
    }

    @media (max-width: 1100px) {
        .nav-menu {
            gap: 14px;
        }
        .header-cta {
            gap: 10px;
        }
        .footer-grid {
            grid-template-columns: 1fr 1fr;
            gap: 36px;
        }
        .cta-inner {
            flex-direction: column;
            align-items: flex-start;
        }
    }

    @media (max-width: 920px) {
        .burger {
            display: flex;
        }
        .nav-menu {
            display: none;
            position: fixed;
            top: 0;
            right: 0;
            z-index: 240;
            width: min(360px, 86vw);
            height: 100vh;
            background: var(--color-dark);
            flex-direction: column;
            justify-content: flex-start;
            align-items: stretch;
            padding: 110px 36px 36px;
            gap: 6px;
            box-shadow: -18px 0 50px rgba(14, 37, 32, .18);
            overflow-y: auto;
            margin: 0;
        }
        .main-header.nav-open .nav-menu {
            display: flex;
        }
        .main-header.nav-open {
            background: var(--color-dark);
        }
        .main-header.nav-open .brand-name {
            color: #fff;
        }
        .main-header.nav-open .brand-sub {
            color: #FF8A66;
            border-color: rgba(255, 138, 102, .5);
        }
        .main-header.nav-open .burger {
            border-color: rgba(255, 255, 255, .24);
            background: transparent;
        }
        .main-header.nav-open .burger span {
            background: #fff;
        }
        .nav-menu a {
            color: rgba(255, 255, 255, .82);
            border-bottom: 1px solid rgba(255, 255, 255, .12);
            padding: 16px 0;
            font-size: 1.05rem;
            display: block;
        }
        .nav-menu a::after {
            display: none;
        }
        .nav-menu a:hover,
        .nav-menu a.active {
            color: #FF8A66;
            padding-left: 8px;
        }
        .header-cta .btn-primary {
            padding: 0 16px;
            font-size: .9rem;
        }
        .article-hero {
            padding: 56px 0 100px;
        }
        .article-meta {
            gap: 12px;
        }
        .post-panel {
            padding: 28px 22px;
        }
        .related-grid {
            grid-template-columns: 1fr 1fr;
        }
        .container {
            padding: 0 20px;
        }
    }

    @media (max-width: 600px) {
        .brand-name {
            font-size: 1.25rem;
        }
        .brand-sub {
            display: none;
        }
        .header-cta .btn-primary {
            min-height: 40px;
            padding: 0 12px;
            font-size: .84rem;
        }
        .header-inner {
            gap: 8px;
        }
        .article-hero h1 {
            font-size: 1.72rem;
        }
        .article-meta {
            flex-direction: column;
            align-items: flex-start;
            gap: 6px;
        }
        .post-panel {
            margin-left: -8px;
            margin-right: -8px;
            padding: 24px 18px;
        }
        .post-excerpt {
            padding-left: 16px;
        }
        .related-grid {
            grid-template-columns: 1fr;
        }
        .section-heading {
            flex-direction: column;
            align-items: flex-start;
            gap: 14px;
        }
        .footer-grid {
            grid-template-columns: 1fr;
            gap: 28px;
        }
        .cta-band {
            padding: 60px 0;
        }
        .cta-btns {
            width: 100%;
            flex-direction: column;
            align-items: stretch;
        }
        .cta-btns .btn {
            width: 100%;
        }
        .footer-copy {
            flex-direction: column;
        }
        .back-action .btn {
            width: auto;
            padding: 0 30px;
        }
        .nf-card {
            padding: 56px 24px;
        }
        .nf-card h1 {
            font-size: 1.5rem;
        }
        .single-line {
            flex-direction: column;
        }
        .single-line .btn {
            width: 100%;
        }
    }

/* roulang page: category1 */
:root {
    --color-primary: #173F35;
    --color-dark: #0E2520;
    --color-accent: #FF5722;
    --bg-paper: #F5F2EC;
    --surface: #FCFAF6;
    --text-ink: #1F2A27;
    --text-muted: #5C6965;
    --text-weak: #9AA5A0;
    --border-line: #E5E0D8;
    --border-dark: #2E4A43;
    --radius: 4px;
    --radius-card: 2px;
    --font-sans: 'HarmonyOS Sans SC','Noto Sans CJK SC','Source Han Sans SC','Microsoft YaHei','PingFang SC','Inter', 'sans-serif';
    --shadow-soft: 0 12px 30px rgba(23,63,53,.06);
  }

  * {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
  }

  html {
    scroll-behavior: smooth;
  }

  @media (prefers-reduced-motion: reduce) {
    html {
      scroll-behavior: auto;
    }
  }

  body {
    font-family: var(--font-sans);
    background: var(--bg-paper);
    color: var(--text-ink);
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
    text-rendering: optimizeLegibility;
  }

  img {
    max-width: 100%;
    display: block;
  }

  a {
    color: inherit;
    text-decoration: none;
  }

  button {
    font-family: inherit;
    cursor: pointer;
    border: none;
    background: transparent;
  }

  .container {
    max-width: 1280px;
    width: 100%;
    margin: 0 auto;
    padding-left: clamp(1rem, 3vw, 2.5rem);
    padding-right: clamp(1rem, 3vw, 2.5rem);
  }

  /* Header / topbar */
  .topbar {
    background: var(--color-dark);
    color: rgba(255,255,255,.72);
    font-size: .78rem;
    padding: .45rem 0;
    letter-spacing: .02em;
  }

  .topbar .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
  }

  .topbar a {
    color: rgba(255,255,255,.86);
    border-bottom: 1px solid rgba(255,255,255,.25);
    transition: color .2s ease, border-color .2s ease;
  }

  .topbar a:hover {
    color: #fff;
    border-color: var(--color-accent);
  }

  .main-header {
    position: sticky;
    top: 0;
    z-index: 50;
    background: rgba(252, 250, 246, .82);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid transparent;
    transition: background .35s ease, border-color .35s ease;
  }

  .main-header.scrolled {
    background: rgba(252,250,246,.96);
    border-bottom-color: var(--border-line);
  }

  .header-inner {
    min-height: 68px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 2rem;
  }

  .brand {
    display: inline-flex;
    flex-direction: column;
    line-height: 1.15;
    flex-shrink: 0;
  }

  .brand-name {
    font-size: 1.35rem;
    font-weight: 800;
    color: var(--color-primary);
    letter-spacing: .02em;
  }

  .brand-sub {
    font-size: .64rem;
    font-weight: 500;
    color: var(--text-muted);
    letter-spacing: .28em;
    text-transform: uppercase;
  }

  .nav-menu {
    display: flex;
    align-items: center;
    gap: 1.4rem;
  }

  .nav-link {
    position: relative;
    font-size: .92rem;
    font-weight: 500;
    color: var(--text-ink);
    padding: .5rem .1rem;
    transition: color .2s ease;
  }

  .nav-link::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: 2px;
    width: 100%;
    height: 2px;
    background: var(--color-accent);
    transform: scaleX(0);
    transform-origin: left center;
    transition: transform .28s ease;
  }

  .nav-link:hover {
    color: var(--color-primary);
  }

  .nav-link:hover::after,
  .nav-link.active::after {
    transform: scaleX(1);
  }

  .nav-link.active {
    font-weight: 700;
    color: var(--color-primary);
  }

  .header-cta {
    display: flex;
    align-items: center;
    gap: .8rem;
  }

  .btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: .45rem;
    min-height: 44px;
    padding: .55rem 1.35rem;
    font-size: .92rem;
    font-weight: 600;
    line-height: 1;
    border-radius: var(--radius);
    border: 1px solid transparent;
    transition: all .25s ease;
    white-space: nowrap;
  }

  .btn span {
    display: inline-block;
    transition: transform .25s ease;
  }

  .btn-primary {
    background: var(--color-accent);
    color: #fff;
  }

  .btn-primary:hover {
    background: #E84216;
    color: #fff;
  }

  .btn-primary:hover span {
    transform: translateX(4px);
  }

  .btn-outline {
    background: transparent;
    color: var(--color-primary);
    border-color: var(--color-primary);
  }

  .btn-outline:hover {
    color: var(--color-accent);
    border-color: var(--color-accent);
  }

  .btn-outline:hover span {
    transform: translateX(4px);
  }

  .btn-light {
    background: #fff;
    color: var(--color-dark);
  }

  .btn-light:hover {
    background: #f3efe8;
  }

  .burger {
    display: none;
    width: 44px;
    height: 44px;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 5px;
  }

  .burger span {
    width: 22px;
    height: 2px;
    background: var(--color-ink);
    transition: background .2s ease;
  }

  .burger:hover span {
    background: var(--color-accent);
  }

  /* Hero */
  .login-hero {
    background: linear-gradient(180deg, rgba(14,37,32,.94) 0%, rgba(23,63,53,.84) 100%), url('/assets/images/backpic/back-1.png') center / cover no-repeat;
    padding: 6rem 0 5.2rem;
    color: #f2f6f3;
    border-bottom: 1px solid var(--border-dark);
  }

  .breadcrumb {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: .2rem .55rem;
    font-size: .82rem;
    color: rgba(255,255,255,.64);
    margin-bottom: 1.6rem;
  }

  .breadcrumb a {
    color: rgba(255,255,255,.74);
    transition: color .2s ease;
  }

  .breadcrumb a:hover {
    color: #fff;
  }

  .hero-kicker {
    font-size: .78rem;
    letter-spacing: .24em;
    color: #FFB49B;
    text-transform: uppercase;
    display: flex;
    align-items: center;
    gap: .6rem;
    margin-bottom: 1.1rem;
  }

  .hero-kicker::before {
    content: '';
    width: 30px;
    height: 1px;
    background: var(--color-accent);
  }

  .login-hero h1 {
    font-size: clamp(1.9rem, 4vw, 3.6rem);
    font-weight: 800;
    line-height: 1.18;
    margin-bottom: 1.25rem;
    max-width: 900px;
    letter-spacing: .01em;
  }

  .hero-lead {
    font-size: clamp(.95rem, 1.4vw, 1.1rem);
    color: rgba(255,255,255,.78);
    max-width: 760px;
    line-height: 1.85;
  }

  /* Quick entry block */
  .quick-wrap {
    margin-top: -2rem;
    position: relative;
    z-index: 3;
  }

  .quick-card {
    background: #fff;
    border: 1px solid var(--border-line);
    border-radius: var(--radius);
    padding: 1.6rem 1.25rem;
    min-height: 170px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    box-shadow: none;
    transition: border-color .25s ease, transform .25s ease, box-shadow .25s ease;
  }

  .quick-card:hover {
    border-color: var(--color-primary);
    transform: translateY(-4px);
    box-shadow: var(--shadow-soft);
  }

  .quick-num {
    font-size: .7rem;
    font-weight: 700;
    letter-spacing: .2em;
    color: var(--color-accent);
    margin-bottom: .5rem;
  }

  .quick-card h3 {
    font-size: 1.06rem;
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: .45rem;
  }

  .quick-card p {
    font-size: .82rem;
    color: var(--text-muted);
    line-height: 1.75;
  }

  .quick-link {
    display: inline-flex;
    align-items: center;
    gap: .3rem;
    margin-top: .8rem;
    font-size: .82rem;
    font-weight: 600;
    color: var(--color-primary);
    transition: color .2s ease;
  }

  .quick-link span {
    transition: transform .2s ease;
  }

  .quick-card:hover .quick-link {
    color: var(--color-accent);
  }

  .quick-card:hover .quick-link span {
    transform: translateX(4px);
  }

  /* Section headers */
  .section-heading {
    margin-bottom: 3rem;
  }

  .section-kicker {
    font-size: .76rem;
    font-weight: 700;
    letter-spacing: .22em;
    text-transform: uppercase;
    color: var(--color-accent);
    display: flex;
    align-items: center;
    gap: .5rem;
    margin-bottom: .5rem;
  }

  .section-kicker::before {
    content: '';
    width: 26px;
    height: 1px;
    background: var(--color-accent);
  }

  .section-heading h2 {
    font-size: clamp(1.6rem, 2.6vw, 2.4rem);
    line-height: 1.2;
    font-weight: 800;
    color: var(--color-dark);
    letter-spacing: -0.01em;
  }

  .section-heading .section-lead {
    font-size: .95rem;
    color: var(--text-muted);
    margin-top: .8rem;
    max-width: 640px;
  }

  /* Step flow */
  .step-block {
    background: #fff;
    border: 1px solid var(--border-line);
    border-radius: var(--radius);
    padding: 2.2rem 2rem;
  }

  .step-item {
    display: grid;
    grid-template-columns: 64px 1fr;
    gap: 1.35rem;
    padding: 1.6rem 0;
    border-bottom: 1px solid var(--border-line);
  }

  .step-item:last-child {
    border-bottom: 0;
    padding-bottom: 0;
  }

  .step-num {
    width: 48px;
    height: 48px;
    border: 1px solid var(--color-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 800;
    font-size: 1rem;
    color: var(--color-primary);
    background: var(--surface);
    line-height: 1;
  }

  .step-item h3 {
    font-size: 1.08rem;
    font-weight: 700;
    color: var(--color-dark);
    margin-bottom: .4rem;
  }

  .step-item p {
    color: var(--text-muted);
    font-size: .9rem;
    line-height: 1.8;
  }

  .step-item code {
    font-family: 'SFMono-Regular', Consolas, 'Liberation Mono', Menlo, monospace;
    color: var(--color-accent);
    background: rgba(255,87,34,.08);
    padding: .1rem .4rem;
    border-radius: 3px;
  }

  /* Dark strip */
  .dark-strip {
    background: var(--color-dark);
    color: #e3ebe7;
    padding: 2.8rem 0;
    border-top: 1px solid var(--border-dark);
    border-bottom: 1px solid var(--border-dark);
  }

  .status-item {
    display: flex;
    gap: .6rem;
    align-items: flex-start;
  }

  .status-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--color-accent);
    margin-top: .55rem;
    flex: 0 0 auto;
  }

  .status-item h3 {
    font-size: .96rem;
    font-weight: 600;
    color: #fff;
    margin-bottom: .25rem;
  }

  .status-item p {
    font-size: .84rem;
    color: rgba(255,255,255,.62);
    line-height: 1.7;
  }

  /* Image + text block */
  .image-card {
    background: #fff;
    border: 1px solid var(--border-line);
    border-radius: var(--radius);
    overflow: hidden;
  }

  .image-card .ratio-box {
    aspect-ratio: 4 / 3;
    background: var(--surface) center / cover no-repeat;
    width: 100%;
  }

  .image-card figcaption {
    font-size: .76rem;
    color: var(--text-weak);
    padding: .65rem 1rem;
    border-top: 1px solid var(--border-line);
  }

  .access-item {
    display: flex;
    gap: 1rem;
    padding: 1.15rem 0;
    border-bottom: 1px solid var(--border-line);
  }

  .access-item:last-child {
    border-bottom: 0;
    padding-bottom: 0;
  }

  .access-index {
    font-size: .75rem;
    font-weight: 700;
    color: var(--color-accent);
    letter-spacing: .08em;
    padding-top: .15rem;
    flex: 0 0 auto;
  }

  .access-item h3 {
    font-size: 1rem;
    font-weight: 700;
    color: var(--color-dark);
    margin-bottom: .25rem;
  }

  .access-item p {
    font-size: .88rem;
    color: var(--text-muted);
    line-height: 1.75;
  }

  /* FAQ */
  .faq-panel {
    border-top: 1px solid var(--border-line);
  }

  .faq-item {
    border-bottom: 1px solid var(--border-line);
  }

  .faq-q {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1.5rem;
    padding: 1.3rem .1rem;
    text-align: left;
    font-size: .98rem;
    font-weight: 600;
    color: var(--text-ink);
    transition: color .2s ease;
  }

  .faq-q:hover {
    color: var(--color-accent);
  }

  .faq-icon {
    position: relative;
    width: 22px;
    height: 22px;
    flex: 0 0 auto;
    border: 1px solid currentColor;
    border-radius: 50%;
  }

  .faq-icon::before,
  .faq-icon::after {
    content: '';
    position: absolute;
    background: currentColor;
    left: 5px;
    right: 5px;
    top: 10px;
    height: 1px;
  }

  .faq-icon::after {
    transform: rotate(90deg);
    transition: transform .2s ease;
  }

  .faq-item.active .faq-icon::after {
    transform: rotate(0);
  }

  .faq-a {
    max-height: 0;
    overflow: hidden;
    transition: max-height .35s ease;
  }

  .faq-a p {
    font-size: .9rem;
    color: var(--text-muted);
    line-height: 1.8;
    padding-bottom: 1.2rem;
    padding-right: 2.5rem;
  }

  html.no-js .faq-a {
    max-height: none;
  }

  /* CTA */
  .cta-block {
    background: var(--color-primary);
    color: #eef5f1;
  }

  .cta-block h2 {
    font-size: clamp(1.5rem, 3vw, 2.4rem);
    line-height: 1.25;
    font-weight: 800;
    color: #fff;
  }

  .cta-block p {
    color: rgba(255,255,255,.68);
    font-size: .93rem;
    line-height: 1.8;
  }

  /* Footer */
  .site-footer {
    background: var(--color-dark);
    color: rgba(255,255,255,.68);
    padding-top: 3.6rem;
    border-top: 4px solid var(--color-accent);
    font-size: .86rem;
  }

  .footer-grid {
    display: grid;
    grid-template-columns: 1.35fr 1fr .9fr 1fr;
    gap: 2rem;
    padding-bottom: 2.4rem;
  }

  .footer-brand .brand-name {
    color: #fff;
    font-size: 1.25rem;
  }

  .footer-brand .brand-sub {
    color: rgba(255,255,255,.5);
  }

  .footer-brand p {
    margin-top: .85rem;
    max-width: 260px;
    font-size: .8rem;
    line-height: 1.8;
    color: rgba(255,255,255,.5);
  }

  .footer-col h4 {
    color: #fff;
    font-size: .85rem;
    font-weight: 700;
    margin-bottom: .85rem;
    letter-spacing: .06em;
  }

  .footer-col a {
    display: block;
    padding: .22rem 0;
    font-size: .8rem;
    color: rgba(255,255,255,.55);
    transition: color .2s ease, padding-left .2s ease;
  }

  .footer-col a:hover {
    color: #fff;
    padding-left: .25rem;
  }

  .qr-slot {
    width: 88px;
    height: 88px;
    border: 1px dashed rgba(255,255,255,.25);
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: .7rem;
    letter-spacing: .2em;
    color: rgba(255,255,255,.3);
    margin-bottom: .75rem;
  }

  .footer-copy {
    border-top: 1px solid rgba(255,255,255,.08);
    padding: 1.25rem 0;
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    gap: .4rem 2rem;
    font-size: .75rem;
    color: rgba(255,255,255,.34);
  }

  .footer-copy a {
    color: rgba(255,255,255,.45);
    transition: color .2s ease;
  }

  .footer-copy a:hover {
    color: #fff;
  }

  /* Mobile */
  .site-overlay {
    display: none;
  }

  @media (max-width: 1024px) {
    .nav-menu {
      gap: 1rem;
    }
  }

  @media (max-width: 900px) {
    .footer-grid {
      grid-template-columns: 1fr 1fr;
    }
  }

  @media (max-width: 767px) {
    .topbar .topbar-center {
      display: none;
    }

    .topbar .topbar-right a {
      font-size: .76rem;
    }

    .nav-menu {
      position: fixed;
      top: 0;
      right: 0;
      width: min(82vw, 360px);
      height: 100dvh;
      background: rgba(252,250,246,.98);
      backdrop-filter: blur(10px);
      -webkit-backdrop-filter: blur(10px);
      flex-direction: column;
      align-items: flex-start;
      justify-content: flex-start;
      gap: .25rem;
      padding: 6.2rem 2rem 2rem;
      transform: translateX(100%);
      visibility: hidden;
      transition: transform .35s ease, visibility .35s ease;
      z-index: 60;
      border-left: 1px solid var(--border-line);
      box-shadow: -18px 0 40px rgba(14,37,32,.12);
    }

    .nav-menu.open {
      transform: translateX(0);
      visibility: visible;
    }

    .nav-menu .nav-link {
      display: block;
      width: 100%;
      padding: .75rem 0;
      font-size: 1.05rem;
      border-bottom: 1px solid var(--border-line);
    }

    .nav-menu .nav-link::after {
      content: none;
    }

    .nav-menu .nav-link.active {
      border-bottom-color: var(--color-primary);
    }

    .burger {
      display: inline-flex;
    }

    .header-cta > a.btn {
      display: none;
    }

    .burger {
      position: relative;
      z-index: 70;
    }

    .site-overlay.open {
      display: block;
      position: fixed;
      inset: 0;
      background: rgba(14,37,32,.6);
      z-index: 55;
    }

    html.no-js .nav-menu {
      position: static;
      transform: none;
      visibility: visible;
      width: 100%;
      height: auto;
      background: transparent;
      padding: 1rem 0;
      box-shadow: none;
      border-left: 0;
      display: flex;
      flex-direction: row;
      flex-wrap: wrap;
    }

    html.no-js .burger,
    html.no-js .site-overlay {
      display: none;
    }

    html.no-js .header-inner {
      flex-wrap: wrap;
    }
  }

  @media (max-width: 520px) {
    .topbar {
      font-size: .72rem;
    }

    .brand-name {
      font-size: 1.18rem;
    }

    .brand-sub {
      font-size: .56rem;
    }

    .login-hero {
      padding: 4.4rem 0 3.8rem;
    }

    .step-block {
      padding: 1.2rem;
    }

    .step-item {
      grid-template-columns: 46px 1fr;
      gap: .8rem;
      padding: 1.1rem 0;
    }

    .step-num {
      width: 38px;
      height: 38px;
      font-size: .85rem;
    }

    .footer-grid {
      grid-template-columns: 1fr;
    }

    .footer-copy {
      flex-direction: column;
    }
  }

/* roulang page: category2 */
:root {
  --color-primary: #173F35;
  --color-dark: #0E2520;
  --color-accent: #FF5722;
  --bg-paper: #F5F2EC;
  --color-card: #FFFFFF;
  --color-card-soft: #FCFAF6;
  --color-ink: #1F2A27;
  --color-sub: #5C6965;
  --color-muted: #9AA5A0;
  --color-line: #E5E0D8;
  --color-line-dark: #2E4A43;
  --radius: 4px;
  --font-sans: "HarmonyOS Sans SC", "Noto Sans CJK SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-num: "Inter", "Space Grotesk", "HarmonyOS Sans SC", monospace;
  --shadow-soft: 0 12px 30px rgba(23, 63, 53, .06);
  --container-w: 1280px;
}

*, *::before, *::after {
  box-sizing: border-box;
}

html {
  min-height: 100%;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-sans);
  background: var(--bg-paper);
  color: var(--color-ink);
  line-height: 1.7;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

a {
  color: inherit;
  text-decoration: none;
  transition: color .22s ease, border-color .22s ease, background-color .22s ease;
}

a:focus-visible, button:focus-visible, summary:focus-visible, input:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 3px;
}

button, input {
  font-family: inherit;
}

img {
  display: block;
  max-width: 100%;
}

.container {
  width: 100%;
  max-width: var(--container-w);
  margin-inline: auto;
  padding-inline: 32px;
}

.main-header {
  position: sticky;
  top: 0;
  z-index: 100;
  width: 100%;
  background: #FCFAF6;
  border-bottom: 1px solid var(--color-line);
  transition: background-color .3s ease, box-shadow .3s ease;
}

.main-header.scrolled {
  background: #FCFAF6;
  box-shadow: 0 8px 24px rgba(14, 37, 32, .04);
}

.header-inner {
  min-height: 72px;
  display: flex;
  align-items: center;
  gap: 28px;
}

.brand {
  display: inline-flex;
  flex-direction: column;
  line-height: 1.15;
  flex-shrink: 0;
  padding: 8px 0;
}

.brand-name {
  font-size: 1.65rem;
  font-weight: 800;
  letter-spacing: .02em;
  color: var(--color-primary);
  line-height: 1.1;
}

.brand-sub {
  font-size: .72rem;
  font-weight: 500;
  letter-spacing: .28em;
  color: var(--color-sub);
  margin-top: 3px;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-left: auto;
}

.nav-link {
  position: relative;
  padding: 10px 14px;
  color: #2A3833;
  font-size: .95rem;
  font-weight: 500;
  border-radius: 2px;
}

.nav-link::after {
  content: "";
  position: absolute;
  left: 14px;
  right: 14px;
  bottom: 4px;
  height: 2px;
  background: var(--color-accent);
  transform: scaleX(0);
  transform-origin: left top;
  transition: transform .25s ease;
}

.nav-link:hover {
  color: var(--color-primary);
}

.nav-link:hover::after,
.nav-link.active::after {
  transform: scaleX(1);
}

.nav-link.active {
  color: var(--color-primary);
  font-weight: 700;
}

.header-cta {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-left: 8px;
}

.site-nav-trigger {
  position: absolute;
  opacity: 0;
  width: 1px;
  height: 1px;
  pointer-events: none;
}

.burger {
  display: none;
  width: 42px;
  height: 42px;
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  background: #fff;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  cursor: pointer;
  transition: border-color .2s ease;
}

.burger span {
  display: block;
  width: 19px;
  height: 2px;
  background: var(--color-primary);
  transition: transform .25s ease, opacity .2s ease;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 44px;
  padding: 0 22px;
  border-radius: var(--radius);
  font-weight: 600;
  font-size: .95rem;
  border: 1px solid transparent;
  cursor: pointer;
  transition: background-color .2s ease, border-color .2s ease, color .2s ease, box-shadow .2s ease;
  white-space: nowrap;
}

.btn span {
  display: inline-block;
  transition: transform .2s ease;
}

.btn:hover span {
  transform: translateX(4px);
}

.btn-primary {
  background: var(--color-accent);
  color: #fff;
  border-color: var(--color-accent);
}

.btn-primary:hover {
  background: #E64E1F;
  border-color: #E64E1F;
  box-shadow: 0 8px 20px rgba(255, 87, 34, .16);
}

.btn-outline {
  background: transparent;
  color: #fff;
  border-color: rgb(255 255 255 / .55);
}

.btn-outline:hover {
  color: #fff;
  border-color: var(--color-accent);
  background: rgba(255, 87, 34, .10);
}

.btn-dark {
  background: var(--color-primary);
  color: #fff;
  border-color: var(--color-primary);
}

.btn-dark:hover {
  background: var(--color-dark);
  border-color: var(--color-dark);
}

.btn-ghost {
  background: transparent;
  color: var(--color-primary);
  border-color: #C9CDC7;
}

.btn-ghost:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
}

.btn-block {
  width: 100%;
}

/* ============ 面包屑 ============ */
.breadcrumb-bar {
  border-bottom: 1px solid var(--color-line);
  background: #FCFAF6;
  padding: 12px 0;
  font-size: .85rem;
  color: var(--color-sub);
}

.breadcrumb-bar a {
  color: var(--color-primary);
}

.breadcrumb-bar a:hover {
  color: var(--color-accent);
}

.breadcrumb-bar .sep {
  margin: 0 8px;
  color: var(--color-muted);
}

.breadcrumb-bar .current {
  color: var(--color-ink);
  font-weight: 600;
}

/* ============ 页面首屏 / 通栏标题 ============ */
.page-hero {
  position: relative;
  background-image: url('/assets/images/backpic/back-2.png');
  background-size: cover;
  background-position: center 38%;
  padding: 88px 0 76px;
  color: #fff;
  border-bottom: 1px solid var(--color-dark);
}

.page-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(100deg, rgba(14, 37, 32, .94) 10%, rgba(23, 63, 53, .82) 62%, rgba(255, 87, 34, .22) 100%);
  z-index: 0;
}

.page-hero .breadcrumb-bar-light {
  position: relative;
  z-index: 2;
  margin-top: 0;
  font-size: .85rem;
  color: rgba(255, 255, 255, .75);
}

.page-hero .breadcrumb-bar-light a {
  color: rgba(255, 255, 255, .85);
}

.page-hero .breadcrumb-bar-light a:hover {
  color: #fff;
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 880px;
  margin-top: 28px;
  animation: heroRise .7s ease both;
}

@keyframes heroRise {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.hero-kicker {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: .85rem;
  letter-spacing: .18em;
  color: rgba(255, 255, 255, .72);
  border: 1px solid rgba(255, 255, 255, .24);
  padding: 6px 12px;
  border-radius: 2px;
  margin-bottom: 22px;
}

.hero-kicker::before {
  content: "";
  width: 20px;
  height: 1px;
  background: var(--color-accent);
}

.hero-title {
  font-size: clamp(2rem, 5vw, 3.9rem);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: .02em;
  margin: 0 0 16px;
}

.hero-title span {
  display: block;
  font-size: clamp(1.05rem, 2vw, 1.6rem);
  font-weight: 500;
  color: rgba(255, 255, 255, .85);
  margin-top: 14px;
  letter-spacing: .06em;
}

.hero-lead {
  max-width: 720px;
  font-size: 1.02rem;
  line-height: 2;
  color: rgba(255, 255, 255, .88);
  margin: 0 0 36px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

.hero-note {
  display: flex;
  flex-wrap: wrap;
  gap: 24px;
  margin-top: 40px;
  color: rgba(255, 255, 255, .64);
  font-size: .85rem;
}

.hero-note strong {
  color: #fff;
  font-family: var(--font-num);
  font-size: 1.2rem;
  margin-right: 5px;
}

/* ============ 首页共享结构 ============ */
.page-body {
  background: var(--bg-paper);
}

.section {
  padding: 96px 0;
}

.section-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 32px;
  margin-bottom: 44px;
}

.section-head h2 {
  font-size: clamp(1.7rem, 3vw, 2.5rem);
  color: var(--color-ink);
  font-weight: 700;
  line-height: 1.2;
  margin: 6px 0 0;
}

.kicker {
  display: block;
  font-size: .82rem;
  font-weight: 600;
  letter-spacing: .20em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 10px;
}

.kicker-light {
  color: var(--color-accent);
}

.section-head p,
.section-sub {
  color: var(--color-sub);
  max-width: 580px;
}

.link-all {
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--color-primary);
  font-weight: 600;
  border-bottom: 1px solid transparent;
}

.link-all:hover {
  color: var(--color-accent);
  border-color: var(--color-accent);
}

.section-lead {
  border-bottom: 1px solid var(--color-line);
  padding: 26px 0;
}

.lead-wrap {
  display: flex;
  gap: 28px;
  align-items: baseline;
}

.lead-num {
  font-family: var(--font-num);
  font-size: .95rem;
  color: var(--color-accent);
  font-weight: 600;
}

.lead-wrap p {
  font-size: 1.15rem;
  margin: 0;
  max-width: 920px;
  color: var(--color-ink);
  line-height: 2;
}

/* ============ 交错图文玩法模块 ============ */
.mode-card {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
  background: #fff;
  border: 1px solid var(--color-line);
  border-radius: 4px;
  overflow: hidden;
  transition: border-color .3s ease, box-shadow .3s ease;
}

.mode-card + .mode-card {
  margin-top: 36px;
}

.mode-card:hover {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-soft);
}

.mode-reverse .mode-body {
  order: 1;
}

.mode-reverse .mode-media {
  order: 2;
}

.mode-media {
  background: #E9E5DE;
  min-height: 300px;
  display: flex;
  overflow: hidden;
}

.mode-media img {
  width: 100%;
  object-fit: cover;
  transition: transform .5s ease;
}

.mode-card:hover .mode-media img {
  transform: scale(1.04);
}

.mode-body {
  padding: 38px 42px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: flex-start;
}

.tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: .8rem;
  font-weight: 600;
  letter-spacing: .05em;
  padding: 4px 12px;
  border: 1px solid var(--color-line);
  border-radius: 2px;
  color: var(--color-primary);
  background: var(--color-card-soft);
  margin-bottom: 18px;
}

.tag.web {
  background: var(--color-accent);
  color: #fff;
  border-color: var(--color-accent);
  border-radius: 99px;
}

.mode-body h3 {
  font-size: 1.55rem;
  color: var(--color-ink);
  margin: 0 0 14px;
  letter-spacing: .01em;
}

.mode-body p {
  color: var(--color-sub);
  line-height: 1.9;
  margin: 0 0 14px;
}

.mode-body .mode-desc {
  color: var(--color-sub);
  line-height: 1.9;
  margin: 0 0 12px;
}

.mode-list {
  list-style: none;
  margin: 0 0 20px;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px 18px;
}

.mode-list li {
  display: flex;
  align-items: center;
  color: var(--color-sub);
  font-size: .9rem;
}

.mode-list li::before {
  content: "▪";
  color: var(--color-accent);
  margin-right: 9px;
  font-size: .72rem;
}

.mode-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--color-primary);
  font-weight: 600;
  border-bottom: 1px solid transparent;
}

.mode-link:hover {
  color: var(--color-accent);
  border-color: var(--color-accent);
}

.mode-link span {
  transition: transform .2s ease;
}

.mode-link:hover span {
  transform: translateX(4px);
}

/* ============ 符号索引 / 玩法分类墙 ============ */
.dark-band {
  background: var(--color-primary);
  color: #fff;
  position: relative;
  overflow: hidden;
  padding: 88px 0;
}

.dark-band::before {
  content: "";
  position: absolute;
  right: -160px;
  top: -160px;
  width: 380px;
  height: 380px;
  border: 1px solid rgba(255, 255, 255, .10);
  border-radius: 50%;
}

.dark-band .section-head h2 {
  color: #fff;
}

.dark-band .section-head p {
  color: rgba(255, 255, 255, .68);
}

.tag-cloud {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  margin-top: 12px;
}

.tag-item {
  display: flex;
  gap: 16px;
  padding: 22px 24px;
  background: rgba(255, 255, 255, .045);
  border: 1px solid var(--color-line-dark);
  border-radius: 4px;
  transition: border-color .25s ease, background .25s ease;
}

.tag-item:hover {
  border-color: rgba(255, 255, 255, .4);
  background: rgba(255, 255, 255, .08);
}

.tag-item i {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  flex-shrink: 0;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, .14);
  color: #FFB394;
  font-family: var(--font-num);
  font-style: normal;
  font-weight: 600;
}

.tag-item strong {
  display: block;
  font-size: 1.1rem;
  color: #fff;
  font-weight: 600;
  margin-bottom: 2px;
}

.tag-item small {
  color: rgba(255, 255, 255, .62);
  font-size: .85rem;
  line-height: 1.6;
  display: block;
}

/* ============ 纵向更新列表 ============ */
.timeline-section {
  background: #fff;
}

.update-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.update-list li {
  display: grid;
  grid-template-columns: 138px 1fr;
  gap: 24px;
  align-items: baseline;
  padding: 26px 4px;
  border-bottom: 1px solid var(--color-line);
  transition: background .2s ease, padding .2s ease;
}

.update-list li:hover {
  padding-left: 14px;
  background: #FCFAF6;
}

.update-list li:first-child {
  border-top: 1px solid var(--color-line);
}

.update-date {
  display: flex;
  align-items: baseline;
  gap: 8px;
  font-family: var(--font-num);
  color: var(--color-muted);
  font-size: .85rem;
}

.update-date strong {
  font-size: 2rem;
  font-weight: 700;
  color: var(--color-primary);
  line-height: 1;
}

.update-content h3 {
  margin: 0 0 6px;
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--color-ink);
}

.update-content p {
  margin: 0 0 10px;
  color: var(--color-sub);
  line-height: 1.8;
  max-width: 720px;
}

.update-content a {
  font-weight: 600;
  font-size: .85rem;
  color: var(--color-accent);
}

.update-content a:hover {
  text-decoration: underline;
}

.update-badge {
  display: inline-block;
  padding: 2px 9px;
  color: var(--color-primary);
  border: 1px solid #CFD5CD;
  background: #F5F7F1;
  font-size: .78rem;
  margin-right: 12px;
  border-radius: 2px;
}

/* ============ 底部 CTA ============ */
.cta-section {
  background: var(--color-dark);
  color: #fff;
  padding: 88px 0;
  overflow: hidden;
  position: relative;
}

.cta-section::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 4px;
  background: var(--color-accent);
}

.cta-inner {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 32px;
  align-items: center;
  position: relative;
}

.cta-inner h2 {
  font-size: clamp(1.8rem, 3vw, 2.8rem);
  margin: 0 0 10px;
  line-height: 1.2;
}

.cta-inner p {
  color: rgba(255, 255, 255, .75);
  max-width: 640px;
  margin: 0;
}

.cta-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.cta-mark {
  position: absolute;
  right: -70px;
  bottom: -100px;
  font-family: var(--font-num);
  font-size: 14rem;
  font-weight: 800;
  color: rgba(255, 255, 255, .045);
  line-height: 1;
  pointer-events: none;
}

/* ============ FAQ ============ */
.faq-section {
  background: var(--bg-paper);
  padding: 96px 0;
}

.faq-wrap {
  max-width: 900px;
  margin: 0 auto;
}

.faq-item {
  border-bottom: 1px solid var(--color-line);
}

.faq-item:first-of-type {
  border-top: 1px solid var(--color-line);
}

.faq-item summary {
  list-style: none;
  cursor: pointer;
  padding: 22px 4px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  transition: color .2s ease;
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--color-ink);
}

.faq-item summary::-webkit-details-marker {
  display: none;
}

.faq-item summary:hover {
  color: var(--color-accent);
}

.faq-item summary i {
  font-style: normal;
  color: var(--color-accent);
  font-family: var(--font-num);
  font-weight: 600;
  margin-right: 10px;
}

.faq-item summary .mark {
  display: block;
  position: relative;
  width: 20px;
  height: 20px;
  border: 1px solid var(--color-line);
  border-radius: 50%;
  flex-shrink: 0;
  background: transparent;
  transition: transform .3s ease, border-color .3s ease;
}

.faq-item summary .mark::before,
.faq-item summary .mark::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  width: 10px;
  height: 1px;
  background: var(--color-primary);
  transform: translate(-50%, -50%);
}

.faq-item summary .mark::after {
  transform: translate(-50%, -50%) rotate(90deg);
}

.faq-item[open] summary {
  color: var(--color-primary);
}

.faq-item[open] summary .mark {
  border-color: var(--color-accent);
}

.faq-item[open] summary .mark::after {
  transform: translate(-50%, -50%) rotate(0deg);
  background: var(--color-accent);
}

.faq-body {
  padding: 0 4px 28px 36px;
  color: var(--color-sub);
  line-height: 1.95;
  max-width: 760px;
}

/* ============ 更新提醒 ============ */
.notify-section {
  padding: 96px 0;
  background: #FCFAF6;
}

.notify-grid {
  display: grid;
  grid-template-columns: 240px 1fr;
  border: 1px solid var(--color-line);
  background: #fff;
  border-radius: 4px;
  overflow: hidden;
}

.notify-aside {
  background: var(--color-primary);
  color: #fff;
  padding: 36px 28px;
  position: relative;
}

.notify-aside .kicker {
  color: #FFB394;
}

.notify-aside h3 {
  font-size: 1.4rem;
  line-height: 1.4;
  margin: 0;
}

.notify-list {
  padding: 26px 36px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 22px 36px;
}

.notify-list .in-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  line-height: 1.75;
  color: var(--color-sub);
}

.notify-list .in-item::before {
  content: "→";
  color: var(--color-accent);
  font-weight: 700;
  flex-shrink: 0;
}

/* ============ 站点 Footer ============ */
.site-footer {
  background: var(--color-dark);
  color: rgba(255, 255, 255, .72);
  padding: 74px 0 0;
  font-size: .9rem;
}

.site-footer .brand-name {
  color: #fff;
}

.site-footer .brand-sub {
  color: rgba(255, 255, 255, .62);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.3fr 1fr 1fr 1.3fr;
  gap: 48px;
  padding-bottom: 44px;
  border-bottom: 1px solid var(--color-line-dark);
}

.footer-brand p {
  color: rgba(255, 255, 255, .6);
  line-height: 1.8;
  margin: 16px 0 0;
  max-width: 280px;
}

.footer-col h4 {
  color: #fff;
  font-size: .95rem;
  font-weight: 600;
  margin: 0 0 18px;
  letter-spacing: .06em;
}

.footer-col a {
  display: block;
  color: rgba(255, 255, 255, .58);
  font-size: .88rem;
  margin-bottom: 10px;
  line-height: 1.6;
}

.footer-col a:hover {
  color: #fff;
  padding-left: 4px;
}

.qr-slot {
  width: 88px;
  height: 88px;
  border: 1px dashed rgba(255, 255, 255, .4);
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 4px;
  color: rgba(255, 255, 255, .5);
  font-family: var(--font-num);
  font-weight: 600;
  font-size: .9rem;
  margin-bottom: 16px;
  letter-spacing: .1em;
}

.footer-copy {
  padding: 18px 0 26px;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 12px 24px;
  font-size: .82rem;
  color: rgba(255, 255, 255, .42);
}

.footer-copy a {
  color: rgba(255, 255, 255, .58);
}

.footer-copy a:hover {
  color: #fff;
}

/* ============ 响应式处理 ============ */
@media (max-width: 1024px) {
  .container {
    padding-inline: 24px;
  }
  .nav-menu {
    gap: 0;
  }
  .nav-link {
    padding: 10px 10px;
    font-size: .9rem;
  }
  .hero-title {
    font-size: clamp(2.2rem, 4.5vw, 3.2rem);
  }
  .section {
    padding: 74px 0;
  }
  .mode-body {
    padding: 30px 32px;
  }
  .mode-list {
    grid-template-columns: 1fr;
  }
  .tag-cloud {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 36px;
  }
}

@media (max-width: 768px) {
  .container {
    padding-inline: 20px;
  }
  .header-inner {
    min-height: 64px;
    gap: 12px;
    justify-content: space-between;
  }
  .brand-name {
    font-size: 1.35rem;
  }
  .btn-primary {
    min-height: 39px;
    padding: 0 14px;
    font-size: .85rem;
  }
  .nav-menu {
    position: fixed;
    top: 0;
    bottom: 0;
    right: 0;
    width: min(82vw, 360px);
    margin: 0;
    display: flex;
    flex-direction: column;
    align-items: stretch;
    justify-content: flex-start;
    gap: 2px;
    background: var(--color-dark);
    padding: 112px 28px 48px;
    border-left: 1px solid var(--color-line-dark);
    box-shadow: -12px 0 44px rgba(14, 37, 32, .22);
    transform: translateX(105%);
    visibility: hidden;
    transition: transform .3s ease, visibility .3s ease;
    z-index: 200;
  }
  .nav-link {
    color: rgba(255, 255, 255, .7);
    font-size: 1.2rem;
    padding: 14px 6px;
    border-bottom: 1px solid rgba(255, 255, 255, .08);
  }
  .nav-link.active {
    color: #fff;
  }
  .nav-link::after {
    left: 6px;
    bottom: 6px;
    right: auto;
    width: 28px;
  }
  .site-nav-trigger:checked ~ .nav-menu {
    transform: translateX(0);
    visibility: visible;
  }
  .site-nav-trigger {
    display: none;
  }
  .burger {
    display: flex;
    z-index: 220;
  }
  .site-nav-trigger:checked ~ .header-cta .burger {
    border-color: #fff;
  }
  .site-nav-trigger:checked ~ .header-cta .burger span {
    background: #fff;
  }
  .site-nav-trigger:checked ~ .header-cta .burger span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
  }
  .site-nav-trigger:checked ~ .header-cta .burger span:nth-child(2) {
    opacity: 0;
  }
  .site-nav-trigger:checked ~ .header-cta .burger span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
  }
  .header-cta .btn-primary {
    display: none;
  }

  .page-hero {
    padding: 58px 0 54px;
    background-position: center 24%;
  }
  .hero-title {
    font-size: clamp(1.8rem, 7vw, 2.8rem);
  }
  .hero-series {
    gap: 12px;
  }
  .section {
    padding: 56px 0;
  }
  .section-head {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
    margin-bottom: 28px;
  }
  .lead-wrap {
    flex-direction: column;
    gap: 8px;
  }
  .lead-wrap p {
    font-size: 1rem;
  }
  .mode-card,
  .mode-reverse .mode-card {
    grid-template-columns: 1fr;
  }
  .mode-media {
    min-height: 220px;
    order: 0 !important;
  }
  .mode-body {
    order: 1 !important;
    padding: 28px;
  }
  .mode-reverse .mode-body {
    order: 1 !important;
  }
  .mode-reverse .mode-media {
    order: 0 !important;
  }
  .dark-band {
    padding: 56px 0;
  }
  .tag-cloud {
    grid-template-columns: 1fr;
  }
  .update-list li {
    grid-template-columns: 1fr;
    gap: 6px;
    padding: 20px 4px;
  }
  .update-list li:hover {
    padding-left: 10px;
  }
  .update-date strong {
    font-size: 1.4rem;
  }
  .faq-section {
    padding: 56px 0;
  }
  .notify-grid {
    grid-template-columns: 1fr;
  }
  .notify-list {
    grid-template-columns: 1fr;
    padding: 22px 22px;
  }
  .notify-aside {
    padding: 24px;
  }
  .cta-inner {
    grid-template-columns: 1fr;
  }
  .faq-section, .timeline-section {
    padding: 56px 0;
  }
  .cta-section {
    padding: 56px 0;
  }
  .cta-actions .btn {
    width: 100%;
  }
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 30px;
  }
  .footer-copy {
    align-items: flex-start;
    flex-direction: column;
  }
}

@media (max-width: 520px) {
  .container {
    padding-inline: 16px;
  }
  .header-cta .btn-primary {
    display: none;
  }
  .brand-sub {
    letter-spacing: .18em;
  }
  .mode-body {
    padding: 22px 18px;
  }
  .mode-list {
    grid-template-columns: 1fr;
  }
  .mode-card + .mode-card {
    margin-top: 20px;
  }
  .update-content h3 {
    font-size: 1rem;
  }
  .footer-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 380px) {
  .nav-menu {
    width: 100%;
    border-left: none;
  }
}

/* roulang page: category3 */
:root {
    --color-primary: #173F35;
    --color-dark: #0E2520;
    --color-accent: #FF5722;
    --bg-paper: #F5F2EC;
    --bg-surface: #FFFFFF;
    --bg-warm: #FCFAF6;
    --text-main: #1F2A27;
    --text-muted: #5C6965;
    --text-faint: #9AA5A0;
    --line: #E5E0D8;
    --line-dark: #2E4A43;
    --radius: 4px;
    --radius-lg: 8px;
    --font-sans: "HarmonyOS Sans SC", "Noto Sans CJK SC", "PingFang SC", "Microsoft YaHei", "Inter", sans-serif;
    --font-display: "HarmonyOS Sans SC", "Noto Sans CJK SC", "Microsoft YaHei", sans-serif;
    --shadow-soft: 0 12px 30px rgba(23, 63, 53, .06);
}

*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-sans);
    background: var(--bg-paper);
    color: var(--text-main);
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
    text-rendering: optimizeLegibility;
}

img {
    max-width: 100%;
    display: block;
}

a {
    color: var(--color-primary);
    text-decoration: none;
    transition: color .22s ease, border-color .22s ease, background-color .22s ease;
}

button {
    font-family: inherit;
    cursor: pointer;
}

input {
    font-family: inherit;
}

.container {
    width: 100%;
    max-width: 1280px;
    margin-inline: auto;
    padding-inline: 24px;
}

section {
    scroll-margin-top: 78px;
}

/* ========== 顶部细条 ========== */
.top-ticker {
    background: var(--color-dark);
    color: rgba(255, 255, 255, .86);
    font-size: 13px;
}

.top-ticker .ticker-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    min-height: 36px;
    gap: 16px;
}

.ticker-domain {
    letter-spacing: .03em;
    white-space: nowrap;
}

.ticker-domain em {
    font-style: normal;
    color: #fff;
    font-weight: 600;
}

.ticker-center {
    color: rgba(255, 255, 255, .62);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    text-align: center;
}

.ticker-entry {
    color: #fff;
    white-space: nowrap;
    border-bottom: 1px solid transparent;
    transition: border-color .2s ease, color .2s ease;
}

.ticker-entry:hover {
    color: var(--color-accent);
    border-color: var(--color-accent);
}

/* ========== 主导航 ========== */
.main-header {
    position: sticky;
    top: 0;
    z-index: 1100;
    background: var(--bg-warm);
    border-bottom: 1px solid transparent;
    transition: border-color .28s ease, box-shadow .28s ease, background .28s ease;
}

.main-header.scrolled {
    background: var(--bg-warm);
    border-bottom-color: var(--line);
    box-shadow: 0 6px 24px rgba(23, 63, 53, .05);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    min-height: 70px;
    gap: 20px;
}

.brand {
    display: inline-flex;
    align-items: baseline;
    gap: 6px;
    flex-shrink: 0;
}

.brand-name {
    font-family: var(--font-display);
    font-size: 26px;
    font-weight: 800;
    letter-spacing: .02em;
    color: var(--color-primary);
}

.brand-sub {
    font-size: 11px;
    color: var(--text-muted);
    letter-spacing: .08em;
    border: 1px solid var(--line);
    padding: 2px 8px;
    border-radius: 999px;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 6px;
}

.nav-link {
    position: relative;
    display: block;
    padding: 10px 14px;
    font-size: 14.5px;
    font-weight: 500;
    color: var(--text-main);
    border-radius: 2px;
    transition: color .2s ease;
}

.nav-link::after {
    content: "";
    position: absolute;
    left: 14px;
    right: 14px;
    bottom: 3px;
    height: 2px;
    background: var(--color-accent);
    transform: scaleX(0);
    transform-origin: left center;
    transition: transform .28s ease;
}

.nav-link:hover,
.nav-link.active {
    color: var(--color-primary);
}

.nav-link.active {
    font-weight: 700;
}

.nav-link.active::after,
.nav-link:hover::after {
    transform: scaleX(1);
}

.header-cta {
    display: flex;
    align-items: center;
    gap: 14px;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    min-height: 44px;
    padding: 0 24px;
    border-radius: var(--radius);
    font-size: 14.5px;
    font-weight: 600;
    letter-spacing: .02em;
    border: 1px solid transparent;
    transition: background-color .22s ease, color .22s ease, border-color .22s ease, transform .22s ease;
}

.btn span {
    transition: transform .22s ease;
}

.btn:hover span {
    transform: translateX(4px);
}

.btn-primary {
    background: var(--color-accent);
    border-color: var(--color-accent);
    color: #fff;
}

.btn-primary:hover {
    background: #e64a19;
    border-color: #e64a19;
}

.btn-outline {
    background: transparent;
    border-color: rgba(255, 255, 255, .72);
    color: #fff;
}

.btn-outline:hover {
    border-color: var(--color-accent);
    color: var(--color-accent);
}

.btn-ghost {
    background: transparent;
    border-color: var(--color-primary);
    color: var(--color-primary);
}

.btn-ghost:hover {
    border-color: var(--color-accent);
    color: var(--color-accent);
}

.header-cta .btn {
    min-height: 40px;
    padding: 0 18px;
}

.burger {
    display: none;
    width: 40px;
    height: 40px;
    border: 1px solid var(--line);
    background: transparent;
    border-radius: var(--radius);
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 5px;
}

.burger span {
    width: 18px;
    height: 2px;
    background: var(--color-primary);
    display: block;
    border-radius: 2px;
    transition: transform .3s ease, opacity .3s ease;
}

body.nav-open .burger span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}

body.nav-open .burger span:nth-child(2) {
    opacity: 0;
}

body.nav-open .burger span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

.nav-overlay {
    position: fixed;
    inset: 0;
    background: rgba(14, 37, 32, .55);
    z-index: 1040;
    opacity: 0;
    visibility: hidden;
    transition: opacity .3s ease, visibility .3s ease;
}

body.nav-open .nav-overlay {
    opacity: 1;
    visibility: visible;
}

.mobile-nav {
    position: fixed;
    top: 0;
    right: 0;
    width: min(78vw, 340px);
    height: 100vh;
    background: var(--bg-warm);
    z-index: 1050;
    padding: 96px 30px 36px;
    display: flex;
    flex-direction: column;
    gap: 8px;
    transform: translateX(100%);
    transition: transform .35s ease;
    box-shadow: -12px 0 32px rgba(14, 37, 32, .12);
    overflow-y: auto;
}

body.nav-open .mobile-nav {
    transform: translateX(0);
}

.mobile-nav .nav-link {
    font-size: 19px;
    padding: 14px 0;
    border-bottom: 1px solid var(--line);
}

.mobile-nav .nav-link::after {
    display: none;
}

/* ========== 分类 Hero 横幅 ========== */
.cat-banner {
    position: relative;
    background: var(--color-dark);
    color: #fff;
    overflow: hidden;
    padding: 78px 0 78px;
}

.banner-bg {
    position: absolute;
    inset: 0;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    opacity: .24;
    transform: scale(1.04);
}

.banner-mask {
    position: absolute;
    inset: 0;
    background: linear-gradient(100deg, rgba(10, 26, 21, .96) 0%, rgba(16, 49, 42, .93) 44%, rgba(23, 63, 53, .78) 100%);
}

.banner-content {
    position: relative;
    z-index: 2;
    max-width: 960px;
    margin-inline: auto;
}

.breadcrumb {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 8px;
    font-size: 13px;
    color: rgba(255, 255, 255, .66);
    margin-bottom: 22px;
}

.breadcrumb a {
    color: rgba(255, 255, 255, .92);
}

.breadcrumb a:hover {
    color: var(--color-accent);
}

.breadcrumb i {
    font-style: normal;
    color: rgba(255, 255, 255, .45);
}

.kicker {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-size: 12px;
    letter-spacing: .18em;
    text-transform: uppercase;
    color: var(--text-faint);
    margin-bottom: 14px;
}

.kicker::before {
    content: "";
    width: 26px;
    height: 1px;
    background: var(--color-accent);
}

.banner-content .kicker {
    color: rgba(255, 255, 255, .58);
}

.cat-banner h1 {
    font-family: var(--font-display);
    font-size: clamp(2rem, 4vw, 3.4rem);
    font-weight: 800;
    line-height: 1.2;
    letter-spacing: .01em;
    color: #fff;
    margin-bottom: 16px;
}

.cat-banner p {
    font-size: 16.5px;
    line-height: 1.8;
    color: rgba(255, 255, 255, .78);
    max-width: 720px;
    margin-bottom: 28px;
}

.button-row {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 14px;
}

/* ========== 板块通用 ========== */
.section {
    padding: 84px 0;
}

.section-alt {
    background: var(--bg-surface);
    border-top: 1px solid var(--line);
    border-bottom: 1px solid var(--line);
}

.section-dark {
    background: var(--color-dark);
    color: #fff;
}

.section-head {
    margin-bottom: 42px;
}

.section-head .kicker {
    color: var(--text-muted);
}

.section-head h2 {
    font-family: var(--font-display);
    font-size: clamp(1.7rem, 3vw, 2.5rem);
    line-height: 1.2;
    font-weight: 800;
    color: var(--color-primary);
    margin-top: 6px;
}

.section-head p {
    color: var(--text-muted);
    margin-top: 12px;
    max-width: 620px;
}

/* ========== 当期焦点 ========== */
.spotlight-grid {
    display: grid;
    grid-template-columns: 1.08fr .92fr;
    border: 1px solid var(--line);
    background: #fff;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-soft);
}

.spot-media {
    position: relative;
    min-height: 310px;
    background: var(--color-primary);
}

.spot-media img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    min-height: 310px;
}

.spot-media::after {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, rgba(14, 37, 32, 0) 38%, rgba(14, 37, 32, .7) 100%);
}

.live-badge {
    position: absolute;
    left: 18px;
    bottom: 18px;
    z-index: 2;
    display: inline-flex;
    align-items: center;
    gap: 7px;
    background: var(--color-accent);
    color: #fff;
    font-size: 13px;
    font-weight: 600;
    padding: 5px 12px;
    border-radius: 3px;
    letter-spacing: .04em;
}

.live-badge::before {
    content: "";
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: #fff;
}

.spot-info {
    padding: 36px 38px 30px;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.spot-info .kicker {
    color: var(--color-accent);
    margin-bottom: 8px;
}

.spot-info h2 {
    font-family: var(--font-display);
    font-size: 1.72rem;
    line-height: 1.3;
    font-weight: 800;
    color: var(--color-primary);
    margin-bottom: 14px;
}

.spot-info p {
    color: var(--text-muted);
    font-size: 15px;
    margin-bottom: 20px;
}

.spot-list {
    list-style: none;
    margin-bottom: 24px;
    border-top: 1px solid var(--line);
}

.spot-list li {
    display: flex;
    gap: 14px;
    padding: 11px 0;
    font-size: 14px;
    border-bottom: 1px solid var(--line);
    color: var(--text-main);
}

.spot-list li b {
    min-width: 84px;
    color: var(--color-primary);
    font-weight: 600;
}

/* ========== 分类横排三张 ========== */
.channel-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.channel-card {
    background: #fff;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    padding: 30px 26px;
    position: relative;
    transition: border-color .28s ease, box-shadow .28s ease, transform .28s ease;
}

.channel-card:hover {
    border-color: var(--color-primary);
    box-shadow: var(--shadow-soft);
    transform: translateY(-4px);
}

.channel-num {
    font-family: "Space Grotesk", "Inter", monospace;
    font-size: 13px;
    color: var(--color-accent);
    font-weight: 700;
    letter-spacing: .18em;
    margin-bottom: 18px;
    display: block;
}

.channel-card h3 {
    font-size: 20px;
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: 10px;
}

.channel-card p {
    color: var(--text-muted);
    font-size: 14.5px;
}

.channel-tag {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    margin-top: 18px;
    font-size: 13px;
    font-weight: 600;
    color: var(--color-primary);
    border-bottom: 1px solid transparent;
}

.channel-tag:hover {
    color: var(--color-accent);
    border-color: var(--color-accent);
}

/* ========== 参与流程 ========== */
.steps-wrap {
    counter-reset: stepCounter;
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}

.step-item {
    background: var(--bg-warm);
    border: 1px solid var(--line);
    border-top: 3px solid var(--color-primary);
    padding: 26px 20px 24px;
    border-radius: var(--radius);
    position: relative;
    transition: transform .25s ease;
}

.step-item:hover {
    transform: translateY(-4px);
}

.step-item::before {
    counter-increment: stepCounter;
    content: "0" counter(stepCounter);
    display: inline-flex;
    font-family: "Space Grotesk", monospace;
    font-size: 15px;
    font-weight: 700;
    color: var(--color-accent);
    letter-spacing: .12em;
    margin-bottom: 14px;
}

.step-item h3 {
    font-size: 17px;
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: 8px;
}

.step-item p {
    font-size: 14px;
    color: var(--text-muted);
}

/* ========== 栏目情报 / 信息条 ========== */
.info-strip {
    color: #fff;
    border-bottom: 1px solid var(--line-dark);
}

.info-grid {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 28px;
}

.info-card {
    border-left: 1px solid var(--line-dark);
    padding-left: 28px;
}

.info-card h3 {
    font-size: 16px;
    font-weight: 700;
    margin-bottom: 10px;
}

.info-card p {
    font-size: 14px;
    color: rgba(255, 255, 255, .72);
}

/* ========== FAQ ========== */
.faq-list {
    max-width: 900px;
    margin-inline: auto;
}

.faq-item {
    border-bottom: 1px solid var(--line);
}

.faq-item:first-child {
    border-top: 1px solid var(--line);
}

.faq-q {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
    background: transparent;
    border: none;
    text-align: left;
    padding: 21px 4px;
    font-size: 16.5px;
    font-weight: 600;
    color: var(--text-main);
    transition: color .2s ease;
}

.faq-q:hover {
    color: var(--color-primary);
}

.faq-q .faq-icon {
    flex-shrink: 0;
    width: 30px;
    height: 30px;
    border: 1px solid var(--line);
    border-radius: 50%;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: var(--color-primary);
    font-size: 18px;
    font-style: normal;
    font-weight: 400;
    transition: all .3s ease;
}

.faq-item.open .faq-icon {
    background: var(--color-accent);
    border-color: var(--color-accent);
    color: #fff;
    transform: rotate(45deg);
}

.faq-a {
    max-height: 0;
    overflow: hidden;
    transition: max-height .32s ease, padding .32s ease;
    padding: 0 4px;
}

.faq-item.open .faq-a {
    max-height: 300px;
    padding: 0 4px 22px;
}

.faq-a p {
    color: var(--text-muted);
    font-size: 15px;
    line-height: 1.8;
    border-left: 2px solid var(--color-accent);
    padding-left: 16px;
}

/* ========== CTA 订阅 ========== */
.cta-block {
    background:
        linear-gradient(rgba(14, 37, 32, .90), rgba(14, 37, 32, .92)),
        url('/assets/images/backpic/back-3.webp') center/cover no-repeat;
}

.cta-inner {
    display: grid;
    grid-template-columns: 1.05fr .95fr;
    align-items: center;
    gap: 48px;
    color: #fff;
}

.cta-inner h2 {
    font-family: var(--font-display);
    font-size: clamp(1.8rem, 3vw, 2.5rem);
    font-weight: 800;
    line-height: 1.25;
    margin-bottom: 14px;
}

.cta-inner p {
    color: rgba(255, 255, 255, .76);
    font-size: 15px;
}

.subscribe-box {
    background: rgba(255, 255, 255, .06);
    border: 1px solid var(--line-dark);
    padding: 30px;
    border-radius: var(--radius-lg);
}

.subscribe-form {
    display: flex;
    gap: 10px;
    margin-top: 18px;
}

.subscribe-form input {
    flex: 1;
    min-width: 0;
    background: rgba(255, 255, 255, .08);
    border: 1px solid var(--line-dark);
    color: #fff;
    font-size: 14.5px;
    padding: 0 16px;
    border-radius: var(--radius);
    outline: none;
    height: 46px;
    transition: border-color .24s ease;
}

.subscribe-form input::placeholder {
    color: rgba(255, 255, 255, .5);
}

.subscribe-form input:focus {
    border-color: var(--color-accent);
}

.subscribe-tip {
    font-size: 12px;
    color: rgba(255, 255, 255, .5);
    margin-top: 12px;
}

/* ========== 页脚 ========== */
.site-footer {
    background: var(--color-dark);
    color: rgba(255, 255, 255, .78);
    padding-top: 68px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.3fr .8fr .9fr 1fr;
    gap: 34px;
    padding-bottom: 46px;
    border-bottom: 1px solid var(--line-dark);
}

.site-footer .brand .brand-name {
    color: #fff;
}

.site-footer .brand .brand-sub {
    color: rgba(255, 255, 255, .58);
    border-color: var(--line-dark);
}

.footer-brand p {
    font-size: 14px;
    line-height: 1.8;
    color: rgba(255, 255, 255, .62);
    margin-top: 14px;
    max-width: 300px;
}

.footer-col h4 {
    color: #fff;
    font-size: 15px;
    margin-bottom: 16px;
    font-weight: 600;
}

.footer-col a {
    display: block;
    color: rgba(255, 255, 255, .7);
    font-size: 14px;
    line-height: 2.4;
    transition: color .2s ease;
}

.footer-col a:hover {
    color: var(--color-accent);
}

.qr-slot {
    width: 88px;
    height: 88px;
    border: 1px dashed rgba(255, 255, 255, .4);
    border-radius: 4px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: "Space Grotesk", monospace;
    font-size: 14px;
    letter-spacing: .12em;
    color: rgba(255, 255, 255, .38);
    margin-bottom: 12px;
}

.footer-copy {
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 10px;
    padding: 22px 0 30px;
    font-size: 13px;
    color: rgba(255, 255, 255, .5);
}

.footer-copy a {
    color: rgba(255, 255, 255, .62);
}

.footer-copy a:hover {
    color: #fff;
}

/* ========== 响应式 ========== */
@media (max-width: 1024px) {
    .nav-menu {
        display: none;
    }

    .burger {
        display: flex;
    }

    .spotlight-grid {
        grid-template-columns: 1fr;
    }

    .spot-media img {
        min-height: 260px;
    }

    .footer-grid {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 768px) {
    .section {
        padding: 54px 0;
    }

    .top-ticker .ticker-center {
        display: none;
    }

    .header-inner {
        min-height: 62px;
    }

    .brand-name {
        font-size: 22px;
    }

    .cat-banner {
        padding: 46px 0 54px;
    }

    .channel-grid {
        grid-template-columns: 1fr;
    }

    .steps-wrap {
        grid-template-columns: 1fr 1fr;
    }

    .info-grid {
        grid-template-columns: 1fr;
        gap: 18px;
    }

    .info-card {
        border-left-width: 3px;
    }

    .cta-inner {
        grid-template-columns: 1fr;
        gap: 22px;
    }

    .spot-info {
        padding: 28px 24px;
    }

    .btns-row {
        align-items: flex-start;
    }
}

@media (max-width: 520px) {
    .container {
        padding-inline: 18px;
    }

    .header-cta .btn {
        display: none;
    }

    .steps-wrap {
        grid-template-columns: 1fr;
    }

    .footer-grid {
        grid-template-columns: 1fr;
        gap: 26px;
    }

    .footer-copy {
        flex-direction: column;
    }

    .button-row .btn {
        width: 100%;
    }

    .subscribe-form {
        flex-direction: column;
    }

    .spot-media img {
        min-height: 210px;
    }

    .cat-banner h1 {
        font-size: 1.6rem;
    }

    .cat-banner p {
        font-size: 14.5px;
    }
}

/* roulang page: category4 */
:root {
        --color-primary: #173F35;
        --color-dark: #0E2520;
        --color-accent: #FF5722;
        --bg-paper: #F5F2EC;
        --surface: #FFFFFF;
        --surface-warm: #FCFAF6;
        --ink: #1F2A27;
        --muted: #5C6965;
        --line: #E5E0D8;
        --dark-line: #2E4A43;
        --radius: 4px;
        --shadow-soft: 0 12px 30px rgba(23, 63, 53, .06);
        --font-sans: "HarmonyOS Sans SC", "Noto Sans CJK SC", "Microsoft YaHei", "Inter", sans-serif;
        --font-display: "Space Grotesk", "HarmonyOS Sans SC", "Noto Sans CJK SC", sans-serif;
    }

    *,
    *::before,
    *::after {
        box-sizing: border-box;
    }

    html {
        scroll-behavior: smooth;
    }

    body {
        margin: 0;
        background: var(--bg-paper);
        color: var(--ink);
        font-family: var(--font-sans);
        font-size: 1rem;
        line-height: 1.75;
        -webkit-font-smoothing: antialiased;
    }

    img {
        max-width: 100%;
        display: block;
    }

    a {
        color: inherit;
        text-decoration: none;
    }

    button {
        font: inherit;
        cursor: pointer;
        border: 0;
        background: none;
        padding: 0;
    }

    .container {
        max-width: 1280px;
        margin-left: auto;
        margin-right: auto;
        padding-left: 24px;
        padding-right: 24px;
    }

    .skip-link {
        position: absolute;
        left: -999px;
        top: 8px;
        background: var(--color-accent);
        color: #fff;
        padding: 8px 16px;
        z-index: 200;
        border-radius: var(--radius);
    }

    .skip-link:focus {
        left: 8px;
    }

    .top-strip {
        background: var(--color-dark);
        color: rgba(255, 255, 255, .72);
        font-size: .8rem;
        letter-spacing: .01em;
        padding: 6px 0;
        border-bottom: 1px solid rgba(255, 255, 255, .06);
    }

    .top-strip-inner {
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 16px;
        min-height: 34px;
    }

    .strip-links {
        display: flex;
        align-items: center;
        gap: 10px;
    }

    .strip-links a,
    .strip-action {
        color: rgba(255, 255, 255, .8);
        transition: color .2s;
    }

    .strip-links a:hover,
    .strip-action:hover {
        color: #fff;
    }

    .strip-sep {
        opacity: .3;
    }

    .strip-action {
        color: #fff;
        font-weight: 600;
    }

    .main-header {
        position: sticky;
        top: 0;
        z-index: 80;
        background: rgba(252, 250, 246, .96);
        backdrop-filter: blur(10px);
        border-bottom: 1px solid transparent;
        transition: border-color .25s, box-shadow .25s, background .25s;
    }

    .main-header.scrolled {
        background: #FCFAF6;
        border-bottom-color: var(--line);
        box-shadow: 0 8px 26px rgba(23, 63, 53, .04);
    }

    .header-inner {
        display: flex;
        align-items: center;
        justify-content: space-between;
        min-height: 70px;
        gap: 24px;
    }

    .brand {
        display: inline-flex;
        align-items: baseline;
        gap: 8px;
        flex-shrink: 0;
        line-height: 1;
    }

    .brand-name {
        font-size: 1.45rem;
        font-weight: 800;
        color: var(--color-primary);
        letter-spacing: .01em;
    }

    .brand-sub {
        font-size: .68rem;
        font-weight: 600;
        letter-spacing: .14em;
        color: var(--color-primary);
        border: 1px solid rgba(23, 63, 53, .45);
        padding: 4px 6px;
        border-radius: 2px;
    }

    .nav-menu {
        display: flex;
        align-items: center;
        gap: 4px;
        margin-left: auto;
    }

    .nav-link {
        position: relative;
        display: inline-block;
        padding: 10px 14px;
        font-size: .95rem;
        font-weight: 500;
        color: var(--muted);
        border-radius: 2px;
        transition: color .2s;
    }

    .nav-link::after {
        content: "";
        position: absolute;
        left: 14px;
        right: 14px;
        bottom: 4px;
        height: 2px;
        background: var(--color-accent);
        transform: scaleX(0);
        transform-origin: left center;
        transition: transform .28s ease;
    }

    .nav-link:hover {
        color: var(--color-primary);
    }

    .nav-link:hover::after,
    .nav-link.active::after {
        transform: scaleX(1);
    }

    .nav-link.active {
        color: var(--color-primary);
        font-weight: 700;
    }

    .header-cta {
        display: flex;
        align-items: center;
        gap: 10px;
        flex-shrink: 0;
    }

    .btn {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        gap: 8px;
        min-height: 44px;
        padding: 0 20px;
        border-radius: var(--radius);
        font-weight: 600;
        font-size: .9rem;
        line-height: 1;
        transition: background .22s, color .22s, border-color .22s, transform .22s;
    }

    .btn-primary {
        background: var(--color-accent);
        color: #fff;
    }

    .btn-primary:hover {
        background: #e64e1b;
        transform: translateY(-1px);
    }

    .btn-primary span {
        display: inline-block;
        transition: transform .22s;
    }

    .btn-primary:hover span {
        transform: translateX(4px);
    }

    .btn-outline {
        background: transparent;
        color: var(--color-primary);
        border: 1.5px solid var(--color-primary);
    }

    .btn-outline:hover {
        color: var(--color-accent);
        border-color: var(--color-accent);
    }

    .burger {
        display: none;
        flex-direction: column;
        justify-content: center;
        gap: 5px;
        width: 42px;
        height: 42px;
        padding: 10px;
        border-radius: 4px;
        background: var(--color-primary);
    }

    .burger span {
        display: block;
        width: 100%;
        height: 2px;
        background: #fff;
        border-radius: 2px;
        transition: transform .3s, opacity .3s;
    }

    .burger.open span:nth-child(1) {
        transform: translateY(7px) rotate(45deg);
    }

    .burger.open span:nth-child(2) {
        opacity: 0;
    }

    .burger.open span:nth-child(3) {
        transform: translateY(-7px) rotate(-45deg);
    }

    .page-breadcrumb {
        background: var(--surface-warm);
        border-bottom: 1px solid var(--line);
        padding: 13px 0;
        font-size: .84rem;
        color: var(--muted);
    }

    .crumb-list {
        display: flex;
        align-items: center;
        flex-wrap: wrap;
        gap: 8px;
    }

    .crumb-list a {
        color: var(--color-primary);
        transition: color .2s;
    }

    .crumb-list a:hover {
        color: var(--color-accent);
    }

    .crumb-sep {
        color: #b8b2a8;
    }

    .page-hero {
        position: relative;
        padding: 76px 0 80px;
        color: #fff;
        background: linear-gradient(112deg, rgba(14, 37, 32, .94) 0%, rgba(14, 37, 32, .82) 52%, rgba(23, 63, 53, .58) 100%), url('/assets/images/backpic/back-3.webp') right center / cover no-repeat;
        border-bottom: 4px solid var(--color-accent);
    }

    .hero-content {
        max-width: 900px;
    }

    .page-kicker {
        display: inline-flex;
        align-items: center;
        gap: 8px;
        font-size: .75rem;
        font-weight: 700;
        letter-spacing: .18em;
        text-transform: uppercase;
        color: #ff9c7a;
        margin-bottom: 18px;
    }

    .page-kicker::before {
        content: "";
        width: 28px;
        height: 1px;
        background: var(--color-accent);
    }

    .page-hero h1 {
        margin: 0;
        font-family: var(--font-sans);
        font-size: clamp(2rem, 4.4vw, 3.5rem);
        line-height: 1.16;
        font-weight: 800;
        letter-spacing: -.01em;
    }

    .page-hero h1 .orange-text {
        color: var(--color-accent);
    }

    .page-lead {
        margin: 22px 0 0;
        max-width: 720px;
        font-size: 1.05rem;
        line-height: 1.8;
        color: rgba(255, 255, 255, .78);
    }

    .section {
        padding-top: 92px;
        padding-bottom: 92px;
    }

    .section-surface {
        background: var(--surface-warm);
        border-top: 1px solid var(--line);
        border-bottom: 1px solid var(--line);
    }

    .section-head {
        display: flex;
        align-items: flex-end;
        justify-content: space-between;
        gap: 32px;
        margin-bottom: 52px;
    }

    .section-head.left-only {
        justify-content: flex-start;
    }

    .kicker {
        display: block;
        font-size: .72rem;
        font-weight: 800;
        letter-spacing: .18em;
        text-transform: uppercase;
        color: var(--color-accent);
        margin-bottom: 10px;
    }

    .section-title {
        margin: 0;
        font-size: clamp(1.65rem, 2.8vw, 2.4rem);
        line-height: 1.22;
        font-weight: 800;
        color: var(--color-dark);
        letter-spacing: -.01em;
    }

    .section-sub {
        margin: 14px 0 0;
        max-width: 580px;
        color: var(--muted);
        font-size: .98rem;
    }

    .service-list {
        border-top: 1px solid var(--line);
    }

    .service-row {
        display: grid;
        grid-template-columns: 110px 230px 1fr;
        gap: 28px;
        align-items: start;
        padding: 30px 12px;
        border-bottom: 1px solid var(--line);
        transition: background .25s, padding-left .25s;
    }

    .service-row:hover {
        background: var(--surface);
        padding-left: 20px;
    }

    .service-index {
        font-family: var(--font-display);
        font-size: .9rem;
        font-weight: 700;
        letter-spacing: .08em;
        color: var(--color-accent);
    }

    .service-title {
        margin: 0;
        font-size: 1.18rem;
        font-weight: 800;
        color: var(--color-primary);
        line-height: 1.5;
    }

    .service-desc {
        margin: 0;
        color: var(--muted);
        font-size: .95rem;
        max-width: 650px;
    }

    .stats-section {
        background: var(--color-dark);
        color: rgba(255, 255, 255, .84);
        padding: 70px 0;
        border-top: 4px solid var(--color-accent);
    }

    .stats-grid {
        display: grid;
        grid-template-columns: repeat(4, 1fr);
        gap: 32px;
    }

    .stat-item {
        border-left: 1px solid rgba(255, 255, 255, .14);
        padding-left: 26px;
    }

    .stat-num {
        font-family: var(--font-display);
        font-size: clamp(2.2rem, 3.6vw, 3.3rem);
        font-weight: 700;
        line-height: 1;
        color: #fff;
        margin-bottom: 12px;
    }

    .stat-num small {
        font-size: 1.1rem;
        color: var(--color-accent);
        margin-left: 4px;
    }

    .stat-label {
        font-size: .92rem;
        color: rgba(255, 255, 255, .72);
        max-width: 220px;
        line-height: 1.6;
    }

    .path-section {
        background: var(--bg-paper);
    }

    .path-grid {
        display: grid;
        grid-template-columns: repeat(4, 1fr);
        gap: 28px;
    }

    .path-step {
        position: relative;
        padding-top: 22px;
        border-top: 3px solid var(--color-primary);
        transition: border-color .25s;
    }

    .path-step:hover {
        border-top-color: var(--color-accent);
    }

    .step-num {
        font-family: var(--font-display);
        font-size: .88rem;
        font-weight: 700;
        color: var(--color-accent);
        letter-spacing: .08em;
    }

    .step-title {
        margin: 10px 0 8px;
        font-size: 1.04rem;
        font-weight: 700;
        color: var(--color-dark);
    }

    .step-text {
        margin: 0;
        font-size: .9rem;
        color: var(--muted);
        line-height: 1.65;
    }

    .feature-grid {
        display: grid;
        grid-template-columns: 1.08fr 1fr;
        align-items: center;
        gap: 64px;
    }

    .feature-grid+.feature-grid {
        margin-top: 76px;
    }

    .feature-grid.reverse .feature-media {
        order: 2;
    }

    .feature-media {
        position: relative;
        border-radius: 2px;
        overflow: hidden;
        border: 1px solid var(--line);
        background: #f0ede6;
        box-shadow: var(--shadow-soft);
    }

    .feature-media img {
        width: 100%;
        aspect-ratio: 4 / 3;
        object-fit: cover;
        transition: transform .6s ease;
    }

    .feature-media:hover img {
        transform: scale(1.04);
    }

    .feature-media::after {
        content: "";
        position: absolute;
        right: 0;
        bottom: 0;
        left: 0;
        height: 40%;
        background: linear-gradient(to top, rgba(14, 37, 32, .16), transparent);
        pointer-events: none;
    }

    .feature-body .kicker {
        margin-bottom: 8px;
    }

    .feature-body h3 {
        margin: 0 0 14px;
        font-size: clamp(1.5rem, 2.4vw, 2rem);
        line-height: 1.3;
        font-weight: 800;
        color: var(--color-dark);
    }

    .feature-body p {
        margin: 0;
        color: var(--muted);
        font-size: .98rem;
        line-height: 1.8;
        max-width: 560px;
    }

    .feature-tags {
        display: flex;
        flex-wrap: wrap;
        gap: 10px;
        margin-top: 22px;
    }

    .tag {
        display: inline-flex;
        align-items: center;
        gap: 6px;
        padding: 6px 12px;
        font-size: .78rem;
        font-weight: 600;
        color: var(--color-primary);
        background: var(--surface);
        border: 1px solid #d9d3c9;
        border-radius: 2px;
    }

    .tag::before {
        content: "/";
        color: var(--color-accent);
        font-weight: 700;
    }

    .related-section {
        background: var(--surface-warm);
        border-top: 1px solid var(--line);
        border-bottom: 1px solid var(--line);
    }

    .related-grid {
        display: grid;
        grid-template-columns: repeat(3, 1fr);
        gap: 24px;
    }

    .related-card {
        position: relative;
        display: block;
        height: 100%;
        background: var(--surface);
        border: 1px solid var(--line);
        border-radius: 2px;
        padding: 34px 30px 30px;
        transition: border-color .25s, box-shadow .25s, transform .25s;
    }

    .related-card:hover {
        border-color: var(--color-primary);
        box-shadow: var(--shadow-soft);
        transform: translateY(-2px);
    }

    .related-card .related-tag {
        font-size: .74rem;
        font-weight: 800;
        letter-spacing: .12em;
        color: var(--color-accent);
        text-transform: uppercase;
    }

    .related-card h3 {
        margin: 16px 0 8px;
        font-size: 1.28rem;
        line-height: 1.35;
        color: var(--color-dark);
        font-weight: 800;
    }

    .related-card p {
        margin: 0;
        color: var(--muted);
        font-size: .9rem;
        line-height: 1.7;
    }

    .related-card .related-link {
        display: inline-flex;
        align-items: center;
        gap: 6px;
        margin-top: 22px;
        font-weight: 700;
        font-size: .88rem;
        color: var(--color-primary);
    }

    .related-card .related-link span {
        transition: transform .22s;
    }

    .related-card:hover .related-link {
        color: var(--color-accent);
    }

    .related-card:hover .related-link span {
        transform: translateX(4px);
    }

    .faq-section {
        background: var(--bg-paper);
        padding-top: 92px;
        padding-bottom: 92px;
    }

    .faq-wrap {
        max-width: 880px;
        margin: 0 auto;
    }

    .faq-head {
        text-align: center;
        margin-bottom: 44px;
    }

    .faq-head .kicker {
        text-align: center;
    }

    .faq-item {
        border-bottom: 1px solid var(--line);
        background: var(--surface);
        margin-bottom: 1px;
    }

    .faq-item:first-child {
        border-top: 1px solid var(--line);
    }

    .faq-question {
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 24px;
        width: 100%;
        text-align: left;
        padding: 24px 18px;
        color: var(--color-dark);
        font-size: 1rem;
        font-weight: 700;
        transition: color .2s;
    }

    .faq-question:hover {
        color: var(--color-accent);
    }

    .faq-q-mark {
        color: var(--color-accent);
        font-family: var(--font-display);
        margin-right: 4px;
        font-weight: 800;
    }

    .faq-icon {
        flex-shrink: 0;
        display: flex;
        align-items: center;
        justify-content: center;
        width: 30px;
        height: 30px;
        border: 1px solid var(--line);
        border-radius: 4px;
        color: var(--color-primary);
        font-size: 1.1rem;
        font-weight: 400;
        transition: background .2s, color .2s, border-color .2s;
    }

    .faq-question:hover .faq-icon {
        border-color: var(--color-accent);
        color: var(--color-accent);
    }

    .faq-item.open .faq-icon {
        background: var(--color-accent);
        border-color: var(--color-accent);
        color: #fff;
    }

    .faq-answer {
        max-height: 0;
        overflow: hidden;
        padding: 0 20px;
        color: var(--muted);
        font-size: .95rem;
        line-height: 1.85;
        transition: max-height .35s ease, padding .35s ease;
    }

    .faq-item.open .faq-answer {
        max-height: 420px;
        padding: 0 20px 26px;
    }

    .cta-band {
        background: var(--color-primary);
        color: #fff;
        position: relative;
        overflow: hidden;
        padding: 84px 0;
    }

    .cta-band::before {
        content: "";
        position: absolute;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        background: linear-gradient(135deg, rgba(14, 37, 32, .5), rgba(14, 37, 32, .05));
        pointer-events: none;
    }

    .cta-inner {
        position: relative;
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 40px;
    }

    .cta-copy h2 {
        margin: 0 0 10px;
        font-size: clamp(1.7rem, 3vw, 2.5rem);
        line-height: 1.3;
        font-weight: 800;
    }

    .cta-copy p {
        margin: 0;
        max-width: 600px;
        color: rgba(255, 255, 255, .76);
        font-size: .98rem;
    }

    .cta-action {
        display: flex;
        align-items: center;
        flex-wrap: wrap;
        gap: 15px;
    }

    .cta-action .btn-outline {
        border-color: rgba(255, 255, 255, .65);
        color: #fff;
    }

    .cta-action .btn-outline:hover {
        border-color: #fff;
        color: #fff;
    }

    .site-footer {
        background: var(--color-dark);
        color: rgba(255, 255, 255, .68);
        font-size: .86rem;
        line-height: 1.7;
    }

    .site-footer::before {
        content: "";
        display: block;
        height: 4px;
        background: var(--color-accent);
    }

    .footer-grid {
        display: grid;
        grid-template-columns: 1.4fr .8fr .8fr 1.1fr;
        gap: 52px;
        padding: 64px 0 48px;
    }

    .site-footer .brand-name {
        color: #fff;
    }

    .site-footer .brand-sub {
        color: #bed3ce;
        border-color: rgba(255, 255, 255, .35);
    }

    .site-footer .brand p {
        margin: 16px 0 0;
        max-width: 320px;
        color: rgba(255, 255, 255, .62);
        font-size: .86rem;
        line-height: 1.75;
    }

    .footer-col h4 {
        margin: 0 0 14px;
        color: #fff;
        font-size: .9rem;
        font-weight: 700;
        letter-spacing: .04em;
    }

    .footer-col a {
        display: block;
        color: rgba(255, 255, 255, .66);
        padding: 4px 0;
        transition: color .2s;
    }

    .footer-col a:hover {
        color: #fff;
    }

    .qr-slot {
        width: 88px;
        height: 88px;
        border: 1px dashed rgba(255, 255, 255, .42);
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: .78rem;
        letter-spacing: .08em;
        color: rgba(255, 255, 255, .5);
        margin-bottom: 12px;
        border-radius: 2px;
    }

    .footer-copy {
        display: flex;
        flex-wrap: wrap;
        justify-content: space-between;
        align-items: center;
        gap: 12px;
        border-top: 1px solid rgba(255, 255, 255, .08);
        padding: 22px 0;
        font-size: .79rem;
        color: rgba(255, 255, 255, .46);
    }

    .footer-copy a {
        color: rgba(255, 255, 255, .6);
        transition: color .2s;
    }

    .footer-copy a:hover {
        color: #fff;
    }

    @media (max-width: 1024px) {
        .header-inner {
            min-height: 64px;
        }
        .nav-menu {
            position: fixed;
            inset: 0;
            background: rgba(10, 30, 25, .97);
            backdrop-filter: blur(14px);
            z-index: 90;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 10px;
            transform: translateX(100%);
            visibility: hidden;
            transition: transform .35s ease, visibility .35s;
        }
        .nav-menu.open {
            transform: translateX(0);
            visibility: visible;
        }
        .nav-link {
            color: rgba(255, 255, 255, .8);
            font-size: 1.2rem;
            padding: 14px 22px;
        }
        .nav-link::after {
            left: 22px;
            right: 22px;
        }
        .nav-link:hover,
        .nav-link.active {
            color: #fff;
        }
        .burger {
            display: flex;
            position: relative;
            z-index: 95;
        }
        .footer-grid {
            grid-template-columns: 1fr 1fr;
            gap: 40px;
        }
    }

    @media (max-width: 900px) {
        .page-hero {
            padding: 58px 0 64px;
        }
        .section {
            padding-top: 72px;
            padding-bottom: 72px;
        }
        .service-row {
            grid-template-columns: 80px 1fr;
            gap: 8px 20px;
        }
        .service-desc {
            grid-column: 2;
        }
        .stats-grid {
            grid-template-columns: repeat(2, 1fr);
            gap: 36px 28px;
        }
        .path-grid {
            grid-template-columns: repeat(2, 1fr);
            row-gap: 38px;
        }
        .feature-grid,
        .feature-grid.reverse {
            grid-template-columns: 1fr;
            gap: 36px;
        }
        .feature-grid.reverse .feature-media {
            order: 0;
        }
        .related-grid {
            grid-template-columns: 1fr;
        }
        .cta-inner {
            flex-direction: column;
            align-items: flex-start;
        }
    }

    @media (max-width: 768px) {
        .section-head {
            align-items: flex-start;
            flex-direction: column;
            margin-bottom: 34px;
        }
        .section-sub {
            max-width: 100%;
        }
        .footer-grid {
            grid-template-columns: 1fr;
            gap: 34px;
            padding-top: 48px;
        }
    }

    @media (max-width: 560px) {
        .strip-links {
            display: none;
        }
        .container {
            padding-left: 18px;
            padding-right: 18px;
        }
        .brand-name {
            font-size: 1.22rem;
        }
        .brand-sub {
            font-size: .6rem;
            letter-spacing: .06em;
        }
        .header-cta .btn-primary {
            display: none;
        }
        .service-row {
            grid-template-columns: 1fr;
            padding: 24px 4px;
            gap: 10px;
        }
        .service-desc {
            grid-column: 1;
        }
        .service-row:hover {
            padding-left: 10px;
        }
        .path-grid {
            grid-template-columns: 1fr;
        }
        .page-lead {
            font-size: .96rem;
        }
        .btn-outline {
            width: 100%;
        }
        .cta-copy h2 {
            font-size: 1.55rem;
        }
        .faq-question {
            font-size: .95rem;
            padding: 20px 6px;
        }
    }