/* roulang page: index */
:root {
            --primary: #24453B;
            --primary-dark: #1B332B;
            --accent: #C89B5A;
            --accent-dark: #B08346;
            --accent-light: #D9AE72;
            --bg-light: #E8EDE8;
            --card-bg: #FBFDFB;
            --border-light: #D9E2D9;
            --text-main: #2A3530;
            --text-muted: #6B7A72;
            --text-dark-bg: #EAF0EA;
            --text-dark-muted: #9DB0A5;
            --error: #C05B4A;
            --success: #4E7A5A;
            --radius-card: 16px;
            --radius-btn: 10px;
            --radius-chip: 999px;
            --shadow-card: 0 8px 24px rgba(36, 69, 59, 0.07);
            --shadow-card-hover: 0 14px 32px rgba(36, 69, 59, 0.13);
            --shadow-dark: 0 10px 30px rgba(0, 0, 0, 0.25);
            --header-height: 76px;
            --font-serif: "Noto Serif SC", "Source Han Serif SC", "Songti SC", serif;
            --font-sans: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
            --container: 1200px;
            --section-gap: 100px;
        }

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

        html {
            scroll-behavior: smooth;
            scroll-padding-top: var(--header-height);
        }

        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.75;
            color: var(--text-main);
            background: #fff;
            -webkit-font-smoothing: antialiased;
        }

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

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

        button,
        input,
        textarea {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
            border: none;
            background: none;
            outline: none;
        }

        ul,
        ol {
            list-style: none;
        }

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

        .container {
            max-width: var(--container);
            margin: 0 auto;
            padding: 0 24px;
        }

        .section {
            padding: var(--section-gap) 0;
        }

        .section-head {
            max-width: 680px;
            margin-bottom: 52px;
        }

        .section-head h2 {
            font-family: var(--font-serif);
            font-size: 32px;
            line-height: 1.35;
            color: var(--primary);
            margin-bottom: 14px;
            font-weight: 700;
        }

        .section-head p {
            font-size: 15px;
            line-height: 1.8;
            color: var(--text-muted);
        }

        .section-head.center {
            margin-left: auto;
            margin-right: auto;
            text-align: center;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 14px 32px;
            border-radius: var(--radius-btn);
            font-size: 15px;
            font-weight: 600;
            letter-spacing: 0.02em;
            cursor: pointer;
            transition: all 0.3s ease;
            text-align: center;
            white-space: nowrap;
        }

        .btn-primary {
            background: var(--accent);
            color: #fff;
            border: 1px solid var(--accent);
        }

        .btn-primary:hover {
            background: var(--accent-dark);
            border-color: var(--accent-dark);
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(200, 155, 90, 0.35);
        }

        .btn-outline {
            background: transparent;
            color: var(--text-dark-bg);
            border: 1px solid rgba(255, 255, 255, 0.5);
        }

        .btn-outline:hover {
            background: rgba(255, 255, 255, 0.08);
            border-color: #fff;
            transform: translateY(-2px);
        }

        .btn-dark {
            background: var(--primary);
            color: #fff;
            border: 1px solid var(--primary);
        }

        .btn-dark:hover {
            background: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(27, 51, 43, 0.3);
        }

        /* ===== Header ===== */
        .header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: transparent;
            transition: background 0.35s ease, box-shadow 0.35s ease;
            height: var(--header-height);
            display: flex;
            align-items: center;
        }

        .header.scrolled {
            background: rgba(27, 51, 43, 0.92);
            box-shadow: 0 4px 24px rgba(0, 0, 0, 0.3);
        }

        .nav-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            width: 100%;
        }

        .logo {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            font-family: var(--font-serif);
            font-size: 21px;
            font-weight: 700;
            color: var(--text-dark-bg);
            white-space: nowrap;
            flex-shrink: 0;
        }

        .logo-mark {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            background: var(--primary);
            color: var(--accent);
            border-radius: 10px;
            font-family: var(--font-serif);
            font-size: 18px;
            font-weight: 700;
            border: 1px solid rgba(200, 155, 90, 0.4);
        }

        .timeline-nav {
            display: flex;
            align-items: center;
            gap: 0;
            flex-shrink: 0;
        }

        .timeline-nav .tl-line {
            width: 22px;
            height: 2px;
            background: rgba(200, 155, 90, 0.4);
            flex-shrink: 0;
        }

        .chip {
            display: inline-flex;
            align-items: center;
            gap: 7px;
            padding: 7px 16px;
            border-radius: var(--radius-chip);
            font-size: 13px;
            font-weight: 600;
            white-space: nowrap;
            transition: transform 0.25s ease, box-shadow 0.25s ease;
            cursor: default;
            line-height: 1.4;
        }

        .chip:hover {
            transform: translateY(-2px);
        }

        .chip-preview {
            background: #fff;
            color: var(--text-muted);
            border: 1px solid var(--border-light);
        }

        .chip-active {
            background: var(--accent);
            color: #fff;
            border: 1px solid var(--accent);
            box-shadow: 0 4px 14px rgba(200, 155, 90, 0.35);
        }

        .chip-active .pulse-dot {
            width: 6px;
            height: 6px;
            background: #fff;
            border-radius: 50%;
            position: relative;
            animation: pulse 1.6s ease-out infinite;
        }

        @keyframes pulse {
            0% {
                box-shadow: 0 0 0 0 rgba(255, 255, 255, 0.7);
            }
            100% {
                box-shadow: 0 0 0 8px rgba(255, 255, 255, 0);
            }
        }

        .chip-playback {
            background: transparent;
            color: var(--text-dark-bg);
            border: 1px solid rgba(255, 255, 255, 0.5);
        }

        .main-nav {
            display: flex;
            align-items: center;
        }

        .main-nav ul {
            display: flex;
            gap: 4px;
            list-style: none;
        }

        .main-nav a {
            display: block;
            padding: 10px 16px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text-dark-bg);
            border-radius: 8px;
            position: relative;
            transition: color 0.25s ease;
        }

        .main-nav a:hover {
            color: var(--accent-light);
        }

        .main-nav a.active {
            color: var(--accent-light);
        }

        .main-nav a.active::after {
            content: "";
            position: absolute;
            bottom: 4px;
            left: 16px;
            right: 16px;
            height: 2px;
            background: var(--accent);
            border-radius: 2px;
        }

        .nav-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            padding: 10px;
            cursor: pointer;
            border: none;
            background: transparent;
        }

        .nav-toggle span {
            display: block;
            width: 22px;
            height: 2px;
            background: var(--text-dark-bg);
            border-radius: 2px;
            transition: all 0.3s ease;
        }

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

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

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

        /* ===== Hero ===== */
        .hero {
            position: relative;
            min-height: 100vh;
            display: flex;
            align-items: flex-end;
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
        }

        .hero-overlay {
            position: absolute;
            inset: 0;
            background: rgba(27, 51, 43, 0.72);
            display: flex;
            align-items: flex-end;
        }

        .hero-inner {
            position: relative;
            z-index: 2;
            padding: 120px 0 80px;
            width: 100%;
        }

        .hero-chip {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 8px 18px;
            border-radius: var(--radius-chip);
            background: rgba(200, 155, 90, 0.18);
            border: 1px solid rgba(200, 155, 90, 0.55);
            color: var(--accent-light);
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 0.03em;
            margin-bottom: 28px;
        }

        .hero-chip .chip-dot {
            width: 6px;
            height: 6px;
            background: var(--accent);
            border-radius: 50%;
            animation: pulse 1.6s ease-out infinite;
        }

        .hero h1 {
            font-family: var(--font-serif);
            font-size: 46px;
            line-height: 1.35;
            color: var(--text-dark-bg);
            max-width: 720px;
            margin-bottom: 24px;
            font-weight: 700;
        }

        .hero-subtitle {
            font-size: 16px;
            line-height: 1.85;
            color: var(--text-dark-muted);
            max-width: 620px;
            margin-bottom: 40px;
        }

        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            margin-bottom: 48px;
        }

        .invite-panel {
            display: grid;
            grid-template-columns: 1.2fr 1.4fr auto;
            align-items: center;
            gap: 32px;
            background: rgba(255, 255, 255, 0.08);
            border: 1px solid rgba(255, 255, 255, 0.15);
            border-radius: var(--radius-card);
            padding: 28px 32px;
            backdrop-filter: blur(8px);
            max-width: 980px;
        }

        .invite-info {
            display: flex;
            align-items: flex-start;
            gap: 14px;
        }

        .invite-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            border-radius: 10px;
            background: rgba(200, 155, 90, 0.2);
            color: var(--accent);
            font-size: 18px;
            flex-shrink: 0;
        }

        .invite-info strong {
            display: block;
            font-size: 15px;
            color: var(--text-dark-bg);
            margin-bottom: 4px;
        }

        .invite-info p {
            font-size: 13px;
            color: var(--text-dark-muted);
            line-height: 1.6;
        }

        .invite-progress {
            min-width: 220px;
        }

        .progress-meta {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 10px;
        }

        .progress-meta span {
            font-size: 13px;
            color: var(--text-dark-muted);
        }

        .progress-meta strong {
            font-size: 18px;
            font-family: var(--font-serif);
            color: var(--accent-light);
        }

        .progress-bar {
            height: 8px;
            background: rgba(255, 255, 255, 0.12);
            border-radius: 999px;
            overflow: hidden;
            margin-bottom: 8px;
        }

        .progress-bar span {
            display: block;
            height: 100%;
            width: 68%;
            background: linear-gradient(90deg, var(--accent), var(--accent-light));
            border-radius: 999px;
            transition: width 1.5s ease 0.5s;
        }

        .progress-hint {
            font-size: 12px;
            color: var(--text-dark-muted);
        }

        .btn-invite {
            white-space: nowrap;
        }

        .hero-scroll {
            display: inline-flex;
            flex-direction: column;
            align-items: center;
            gap: 8px;
            margin-top: 48px;
            font-size: 13px;
            color: var(--text-dark-muted);
            letter-spacing: 0.1em;
            transition: color 0.3s ease;
        }

        .hero-scroll::before {
            content: "";
            width: 1px;
            height: 40px;
            background: rgba(200, 155, 90, 0.5);
            display: block;
        }

        .hero-scroll:hover {
            color: var(--accent-light);
        }

        /* ===== Features ===== */
        .features {
            background: #fff;
        }

        .features-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }

        .feature-card {
            background: var(--card-bg);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-card);
            padding: 32px 28px;
            box-shadow: var(--shadow-card);
            transition: transform 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
            display: flex;
            flex-direction: column;
        }

        .feature-card:hover {
            transform: translateY(-4px);
            border-color: var(--accent);
            box-shadow: var(--shadow-card-hover);
        }

        .feature-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 48px;
            height: 48px;
            border-radius: 12px;
            background: var(--bg-light);
            color: var(--primary);
            font-size: 22px;
            margin-bottom: 20px;
            transition: background 0.3s ease, color 0.3s ease;
        }

        .feature-card:hover .feature-icon {
            background: var(--primary);
            color: var(--accent);
        }

        .feature-card h3 {
            font-family: var(--font-serif);
            font-size: 19px;
            color: var(--primary);
            margin-bottom: 12px;
            line-height: 1.4;
        }

        .feature-card p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.75;
            flex-grow: 1;
            margin-bottom: 18px;
        }

        .feature-card a {
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: color 0.3s ease, gap 0.3s ease;
        }

        .feature-card a:hover {
            color: var(--accent-dark);
            gap: 10px;
        }

        /* ===== Stats ===== */
        .stats-section {
            background: var(--bg-light);
        }

        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 32px;
        }

        .stat-item {
            text-align: center;
            padding: 24px 16px;
        }

        .stat-line {
            display: block;
            width: 32px;
            height: 2px;
            background: var(--accent);
            margin: 0 auto 16px;
        }

        .stat-number {
            font-family: var(--font-serif);
            font-size: 48px;
            font-weight: 700;
            color: var(--primary);
            line-height: 1.2;
            display: block;
            margin-bottom: 6px;
        }

        .stat-label {
            font-size: 14px;
            color: var(--text-muted);
        }

        /* ===== Showcase ===== */
        .showcase-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }

        .showcase-card {
            background: var(--card-bg);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            transition: transform 0.3s ease, box-shadow 0.3s ease;
        }

        .showcase-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-card-hover);
        }

        .cover-wrap {
            position: relative;
            aspect-ratio: 16 / 9;
            overflow: hidden;
        }

        .cover-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }

        .showcase-card:hover .cover-wrap img {
            transform: scale(1.04);
        }

        .badge {
            position: absolute;
            top: 14px;
            left: 14px;
            display: inline-block;
            padding: 4px 12px;
            background: var(--accent);
            color: #fff;
            border-radius: 999px;
            font-size: 12px;
            font-weight: 600;
            letter-spacing: 0.02em;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
        }

        .showcase-body {
            padding: 24px 26px 28px;
        }

        .meta {
            display: block;
            font-size: 13px;
            color: var(--text-muted);
            margin-bottom: 10px;
        }

        .showcase-body h3 {
            font-family: var(--font-serif);
            font-size: 19px;
            color: var(--primary);
            line-height: 1.5;
            margin-bottom: 10px;
        }

        .showcase-body p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.75;
        }

        /* ===== News ===== */
        .news-section {
            background: #fff;
        }

        .news-layout {
            display: grid;
            grid-template-columns: 1.8fr 1fr;
            gap: 52px;
        }

        .news-list li {
            border-bottom: 1px solid var(--border-light);
        }

        .news-list li:last-child {
            border-bottom: none;
        }

        .news-list a {
            display: flex;
            align-items: center;
            gap: 16px;
            padding: 20px 4px;
            transition: padding-left 0.3s ease;
        }

        .news-list a:hover {
            padding-left: 12px;
        }

        .news-list a:hover .news-title {
            color: var(--accent-dark);
        }

        .news-date {
            flex-shrink: 0;
            display: inline-block;
            padding: 4px 10px;
            background: var(--bg-light);
            border-radius: 6px;
            font-size: 13px;
            color: var(--primary);
            font-weight: 600;
        }

        .news-title {
            font-size: 15px;
            color: var(--text-main);
            transition: color 0.3s ease;
            line-height: 1.5;
        }

        .news-side {
            padding: 28px;
            background: var(--bg-light);
            border-radius: var(--radius-card);
        }

        .news-side h3 {
            font-family: var(--font-serif);
            font-size: 19px;
            color: var(--primary);
            margin-bottom: 20px;
            padding-bottom: 12px;
            border-bottom: 2px solid var(--accent);
        }

        .side-card {
            padding: 14px 0;
            border-bottom: 1px solid var(--border-light);
        }

        .side-card:last-child {
            border-bottom: none;
        }

        .side-card a {
            display: block;
            font-size: 15px;
            font-weight: 500;
            color: var(--text-main);
            line-height: 1.5;
            margin-bottom: 4px;
            transition: color 0.3s ease;
        }

        .side-card a:hover {
            color: var(--accent-dark);
        }

        .side-card span {
            font-size: 13px;
            color: var(--text-muted);
        }

        /* ===== Guide ===== */
        .guide-section {
            background: var(--primary-dark);
        }

        .guide-section .section-head h2 {
            color: var(--text-dark-bg);
        }

        .guide-section .section-head p {
            color: var(--text-dark-muted);
        }

        .steps {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 40px;
            position: relative;
        }

        .steps::before {
            content: "";
            position: absolute;
            top: 40px;
            left: 12%;
            right: 12%;
            border-top: 2px dashed rgba(200, 155, 90, 0.4);
            z-index: 0;
        }

        .step {
            position: relative;
            z-index: 1;
            text-align: center;
            padding: 24px 16px 0;
        }

        .step-num {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 48px;
            height: 48px;
            border-radius: 50%;
            border: 2px solid var(--accent);
            background: var(--primary-dark);
            color: var(--accent);
            font-family: var(--font-serif);
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 20px;
            box-shadow: 0 0 0 6px rgba(200, 155, 90, 0.12);
        }

        .step h3 {
            font-family: var(--font-serif);
            font-size: 19px;
            color: var(--text-dark-bg);
            margin-bottom: 10px;
        }

        .step p {
            font-size: 14px;
            color: var(--text-dark-muted);
            line-height: 1.75;
            max-width: 260px;
            margin: 0 auto;
        }

        /* ===== FAQ ===== */
        .faq-container {
            max-width: 820px;
        }

        .faq-item {
            background: var(--card-bg);
            border: 1px solid var(--border-light);
            border-radius: 12px;
            margin-bottom: 16px;
            overflow: hidden;
            transition: background 0.3s ease, border-color 0.3s ease;
        }

        .faq-item.open {
            background: #F4F7F2;
            border-color: var(--accent);
        }

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            width: 100%;
            padding: 20px 24px;
            font-family: var(--font-serif);
            font-size: 17px;
            font-weight: 600;
            color: var(--primary);
            cursor: pointer;
            text-align: left;
            transition: color 0.3s ease;
        }

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

        .faq-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 28px;
            height: 28px;
            border-radius: 8px;
            border: 1px solid var(--border-light);
            color: var(--accent);
            font-size: 16px;
            flex-shrink: 0;
            transition: transform 0.3s ease, background 0.3s ease;
            line-height: 1;
        }

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

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease;
        }

        .faq-answer-inner {
            padding: 0 24px 22px;
        }

        .faq-answer p {
            font-size: 15px;
            color: var(--text-muted);
            line-height: 1.8;
        }

        /* ===== CTA ===== */
        .cta-block {
            display: grid;
            grid-template-columns: 1.1fr 1fr;
            gap: 52px;
            background: var(--primary-dark);
            border-radius: 24px;
            padding: 56px 56px;
            box-shadow: var(--shadow-dark);
        }

        .cta-info h2 {
            font-family: var(--font-serif);
            font-size: 30px;
            line-height: 1.4;
            color: var(--text-dark-bg);
            margin-bottom: 16px;
        }

        .cta-info>p {
            font-size: 15px;
            color: var(--text-dark-muted);
            line-height: 1.8;
            margin-bottom: 32px;
        }

        .cta-info ul {
            margin-top: 8px;
        }

        .cta-info li {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 15px;
            color: var(--text-dark-bg);
            margin-bottom: 14px;
        }

        .cta-info li i {
            color: var(--accent);
            font-size: 16px;
            width: 20px;
            text-align: center;
        }

        .cta-form {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .cta-form input,
        .cta-form textarea {
            width: 100%;
            padding: 14px 18px;
            background: rgba(255, 255, 255, 0.08);
            border: 1px solid rgba(255, 255, 255, 0.15);
            border-radius: var(--radius-btn);
            font-size: 15px;
            color: var(--text-dark-bg);
            transition: border-color 0.3s ease, box-shadow 0.3s ease;
        }

        .cta-form input::placeholder,
        .cta-form textarea::placeholder {
            color: var(--text-dark-muted);
        }

        .cta-form input:focus,
        .cta-form textarea:focus {
            border-color: var(--accent);
            box-shadow: 0 0 0 3px rgba(200, 155, 90, 0.25);
        }

        .cta-form textarea {
            min-height: 100px;
            resize: vertical;
        }

        .cta-form .btn {
            margin-top: 8px;
            width: auto;
            align-self: flex-start;
        }

        /* ===== Footer ===== */
        .footer {
            background: var(--primary-dark);
            margin-top: 0;
        }

        .footer-top {
            padding: 64px 0 40px;
            border-top: 1px solid var(--primary-dark);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
            gap: 40px;
        }

        .footer-brand h3 {
            font-family: var(--font-serif);
            font-size: 20px;
            color: var(--text-dark-bg);
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 16px;
        }

        .footer-brand .logo-mark {
            width: 30px;
            height: 30px;
            font-size: 15px;
        }

        .footer-brand p {
            font-size: 14px;
            color: var(--text-dark-muted);
            line-height: 1.75;
            max-width: 260px;
        }

        .footer h4 {
            font-family: var(--font-serif);
            font-size: 16px;
            color: var(--text-dark-bg);
            margin-bottom: 18px;
        }

        .footer-nav ul li {
            margin-bottom: 10px;
        }

        .footer-nav a {
            font-size: 14px;
            color: var(--text-dark-muted);
            transition: color 0.3s ease;
        }

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

        .footer-timeline .tl-item {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 10px;
            font-size: 14px;
            color: var(--text-dark-muted);
        }

        .footer-timeline .tl-item i {
            color: var(--accent);
            font-size: 13px;
            width: 18px;
            text-align: center;
        }

        .footer-contact li {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 14px;
            color: var(--text-dark-muted);
            margin-bottom: 10px;
        }

        .footer-contact li i {
            color: var(--accent);
            width: 18px;
            text-align: center;
        }

        .footer-bottom {
            padding: 24px 0;
            border-top: 1px solid #335348;
        }

        .footer-bottom .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
        }

        .footer-bottom p {
            font-size: 13px;
            color: var(--text-dark-muted);
        }

        .footer-bottom a {
            font-size: 13px;
            color: var(--text-dark-muted);
            transition: color 0.3s ease;
        }

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

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            :root {
                --section-gap: 80px;
            }

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

            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 20px;
            }

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

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

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

            .cta-block {
                grid-template-columns: 1fr;
                padding: 40px 32px;
            }

            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 36px;
            }
        }

        @media (max-width: 768px) {
            :root {
                --header-height: 64px;
                --section-gap: 64px;
            }

            .nav-toggle {
                display: flex;
                z-index: 1100;
            }

            .timeline-nav {
                position: fixed;
                bottom: 0;
                left: 0;
                right: 0;
                background: rgba(27, 51, 43, 0.97);
                padding: 10px 16px;
                justify-content: center;
                gap: 0;
                overflow-x: auto;
                z-index: 1050;
                box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.3);
                border-top: 1px solid #335348;
            }

            .timeline-nav .tl-line {
                width: 12px;
            }

            .timeline-nav .chip {
                padding: 6px 12px;
                font-size: 12px;
                flex-shrink: 0;
            }

            .main-nav {
                position: fixed;
                top: 0;
                right: 0;
                bottom: 0;
                width: 280px;
                background: rgba(27, 51, 43, 0.98);
                backdrop-filter: blur(12px);
                transform: translateX(100%);
                transition: transform 0.35s ease;
                padding: 100px 32px 40px;
                z-index: 1050;
                border-left: 1px solid #335348;
                box-shadow: -10px 0 30px rgba(0, 0, 0, 0.3);
            }

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

            .main-nav ul {
                flex-direction: column;
                gap: 6px;
            }

            .main-nav a {
                font-size: 17px;
                padding: 12px 8px;
                border-bottom: 1px solid rgba(255, 255, 255, 0.06);
            }

            .main-nav a.active::after {
                display: none;
            }

            .main-nav a.active {
                color: var(--accent-light);
                border-left: 3px solid var(--accent);
                padding-left: 14px;
            }

            .hero {
                min-height: auto;
                align-items: flex-end;
            }

            .hero-inner {
                padding: 120px 0 140px;
            }

            .hero h1 {
                font-size: 32px;
            }

            .hero-subtitle {
                font-size: 15px;
            }

            .invite-panel {
                grid-template-columns: 1fr;
                gap: 24px;
                padding: 24px;
            }

            .invite-progress {
                min-width: 0;
            }

            .btn-invite {
                width: 100%;
                justify-content: center;
            }

            .features-grid,
            .showcase-grid {
                grid-template-columns: 1fr;
            }

            .steps {
                grid-template-columns: 1fr;
                gap: 32px;
            }

            .steps::before {
                display: none;
            }

            .step {
                text-align: left;
                display: flex;
                gap: 20px;
                padding: 0;
                align-items: flex-start;
            }

            .step-num {
                flex-shrink: 0;
                margin-bottom: 0;
            }

            .step p {
                margin: 0;
            }

            .section-head h2 {
                font-size: 26px;
            }

            .cta-block {
                padding: 32px 24px;
                border-radius: 18px;
            }

            .cta-info h2 {
                font-size: 26px;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }

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

        @media (max-width: 520px) {
            .container {
                padding: 0 20px;
            }

            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }

            .stat-number {
                font-size: 34px;
            }

            .news-list a {
                flex-wrap: wrap;
                gap: 8px;
            }

            .news-date {
                font-size: 12px;
            }

            .timeline-nav {
                padding: 8px 12px;
            }

            .timeline-nav .tl-line {
                width: 8px;
            }

            .chip {
                padding: 5px 10px;
                font-size: 11px;
            }

            .hero-actions {
                flex-direction: column;
            }

            .hero-actions .btn {
                width: 100%;
            }

            .cta-form .btn {
                width: 100%;
            }
        }

        /* ===== Animations ===== */
        @keyframes fadeInUp {
            from {
                opacity: 0;
                transform: translateY(24px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        .hero-inner>* {
            animation: fadeInUp 0.7s ease both;
        }

        .hero-inner>*:nth-child(2) {
            animation-delay: 0.1s;
        }

        .hero-inner>*:nth-child(3) {
            animation-delay: 0.2s;
        }

        .hero-inner>*:nth-child(4) {
            animation-delay: 0.3s;
        }

        .hero-inner>*:nth-child(5) {
            animation-delay: 0.4s;
        }

/* roulang page: category1 */
:root {
    --primary: #24453B;
    --primary-dark: #1B332B;
    --accent: #C89B5A;
    --accent-dark: #B08346;
    --accent-light: #D9AE72;
    --bg-light: #E8EDE8;
    --card-bg: #FBFDFB;
    --border-light: #D9E2D9;
    --text-main: #2A3530;
    --text-muted: #6B7A72;
    --text-dark-bg: #EAF0EA;
    --text-dark-muted: #9DB0A5;
    --error: #C05B4A;
    --success: #4E7A5A;
    --radius-card: 16px;
    --radius-btn: 10px;
    --radius-chip: 999px;
    --shadow-card: 0 8px 24px rgba(36, 69, 59, 0.07);
    --shadow-card-hover: 0 14px 32px rgba(36, 69, 59, 0.13);
    --shadow-dark: 0 10px 30px rgba(0, 0, 0, 0.25);
    --header-height: 76px;
    --font-serif: "Noto Serif SC", "Source Han Serif SC", "Songti SC", serif;
    --font-sans: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
    --container: 1200px;
    --section-gap: 100px;
}
html {
    scroll-behavior: smooth;
    scroll-padding-top: var(--header-height);
}
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}
body {
    font-family: var(--font-sans);
    font-size: 16px;
    line-height: 1.75;
    color: var(--text-main);
    background: #fff;
    -webkit-font-smoothing: antialiased;
}
img {
    display: block;
    max-width: 100%;
    height: auto;
}
a {
    color: inherit;
    text-decoration: none;
}
button, input, textarea, select {
    font-family: inherit;
    font-size: inherit;
    line-height: inherit;
    border: none;
    background: none;
    outline: none;
    color: inherit;
}
ul, ol {
    list-style: none;
}
.container {
    max-width: var(--container);
    margin: 0 auto;
    padding: 0 24px;
}
.section {
    padding: var(--section-gap) 0;
}
.section-head {
    max-width: 720px;
    margin-bottom: 48px;
}
.section-head.center {
    margin-left: auto;
    margin-right: auto;
    text-align: center;
}
.section-head h2 {
    font-family: var(--font-serif);
    font-size: 32px;
    line-height: 1.35;
    color: var(--primary);
    margin-bottom: 14px;
    font-weight: 700;
}
.section-head p {
    font-size: 15px;
    line-height: 1.8;
    color: var(--text-muted);
}
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 14px 32px;
    border-radius: var(--radius-btn);
    font-size: 15px;
    font-weight: 600;
    letter-spacing: 0.02em;
    cursor: pointer;
    transition: all 0.3s ease;
    text-align: center;
    white-space: nowrap;
    border: 1px solid transparent;
}
.btn-primary {
    background: var(--accent);
    color: #fff;
    border-color: var(--accent);
}
.btn-primary:hover {
    background: var(--accent-dark);
    border-color: var(--accent-dark);
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(200, 155, 90, 0.35);
}
.btn-outline {
    background: transparent;
    color: var(--text-dark-bg);
    border-color: rgba(255, 255, 255, 0.5);
}
.btn-outline:hover {
    background: rgba(255, 255, 255, 0.08);
    border-color: #fff;
    transform: translateY(-2px);
}
.btn-dark {
    background: var(--primary);
    color: #fff;
    border-color: var(--primary);
}
.btn-dark:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(27, 51, 43, 0.3);
}
a:focus-visible, button:focus-visible, [tabindex]:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 2px;
    border-radius: 3px;
}
/* Header */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: transparent;
    transition: background 0.35s ease, box-shadow 0.35s ease;
    height: var(--header-height);
    display: flex;
    align-items: center;
}
.header.scrolled {
    background: rgba(27, 51, 43, 0.92);
    box-shadow: 0 4px 24px rgba(0, 0, 0, 0.3);
}
.nav-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    width: 100%;
}
.logo {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-family: var(--font-serif);
    font-size: 21px;
    font-weight: 700;
    color: var(--text-dark-bg);
    white-space: nowrap;
    flex-shrink: 0;
}
.logo-mark {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    background: var(--primary);
    color: var(--accent);
    border-radius: 10px;
    font-family: var(--font-serif);
    font-size: 18px;
    font-weight: 700;
    border: 1px solid rgba(200, 155, 90, 0.4);
}
.timeline-nav {
    display: flex;
    align-items: center;
    gap: 0;
    flex-shrink: 0;
}
.timeline-nav .tl-line {
    width: 22px;
    height: 2px;
    background: rgba(200, 155, 90, 0.4);
    flex-shrink: 0;
}
.chip {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 14px;
    border-radius: var(--radius-chip);
    font-size: 13px;
    font-weight: 500;
    transition: transform 0.25s ease, background 0.25s ease;
    white-space: nowrap;
}
.chip:hover {
    transform: translateY(-2px);
}
.chip-preview {
    background: #fff;
    border: 1px solid var(--border-light);
    color: var(--text-muted);
}
.chip-active {
    background: var(--accent);
    border: 1px solid var(--accent);
    color: #fff;
    font-weight: 600;
}
.chip-playback {
    background: transparent;
    border: 1px solid rgba(200, 155, 90, 0.7);
    color: var(--accent-light);
}
.pulse-dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: #fff;
    position: relative;
    flex-shrink: 0;
}
.pulse-dot::after {
    content: "";
    position: absolute;
    inset: -4px;
    border-radius: 50%;
    border: 1px solid rgba(255, 255, 255, 0.7);
    animation: pulse 1.8s ease-out infinite;
}
@keyframes pulse {
    0% { transform: scale(0.7); opacity: 1; }
    80%, 100% { transform: scale(1.6); opacity: 0; }
}
.main-nav {
    display: flex;
    align-items: center;
}
.main-nav ul {
    display: flex;
    align-items: center;
    gap: 6px;
}
.main-nav a {
    display: inline-block;
    padding: 8px 16px;
    font-size: 15px;
    font-weight: 500;
    color: var(--text-dark-bg);
    border-radius: 6px;
    position: relative;
    transition: color 0.3s ease;
}
.main-nav a::after {
    content: "";
    position: absolute;
    left: 16px;
    right: 16px;
    bottom: 4px;
    height: 2px;
    background: var(--accent);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.3s ease;
}
.main-nav a:hover::after,
.main-nav a.active::after {
    transform: scaleX(1);
}
.main-nav a.active {
    color: var(--accent-light);
    font-weight: 600;
}
.nav-toggle {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 40px;
    height: 40px;
    padding: 8px;
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 8px;
    cursor: pointer;
    flex-shrink: 0;
    transition: background 0.3s ease;
}
.nav-toggle:hover {
    background: rgba(255, 255, 255, 0.15);
}
.nav-toggle span {
    display: block;
    height: 2px;
    width: 100%;
    background: var(--text-dark-bg);
    border-radius: 2px;
    transition: transform 0.3s ease, opacity 0.3s ease;
}
.nav-toggle.open span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}
.nav-toggle.open span:nth-child(2) {
    opacity: 0;
}
.nav-toggle.open span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}
/* Page Hero */
.page-hero {
    background: linear-gradient(rgba(27, 51, 43, 0.85), rgba(27, 51, 43, 0.93)), url('/assets/images/backpic/back-1.jpg') center / cover no-repeat;
    padding: 160px 0 72px;
    color: var(--text-dark-bg);
}
.breadcrumb {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 13px;
    color: var(--text-dark-muted);
    margin-bottom: 20px;
}
.breadcrumb a {
    color: var(--accent-light);
    transition: color 0.3s ease;
}
.breadcrumb a:hover {
    color: #fff;
}
.breadcrumb .sep {
    color: var(--text-dark-muted);
}
.page-hero h1 {
    font-family: var(--font-serif);
    font-size: 42px;
    line-height: 1.3;
    color: #fff;
    margin-bottom: 18px;
    max-width: 760px;
    font-weight: 700;
}
.page-hero .lead {
    font-size: 16px;
    line-height: 1.8;
    color: var(--text-dark-muted);
    max-width: 680px;
}
/* Filter Bar */
.filter-bar {
    background: var(--card-bg);
    border-bottom: 1px solid var(--border-light);
    padding: 16px 0;
    position: sticky;
    top: var(--header-height);
    z-index: 90;
    box-shadow: 0 2px 12px rgba(36, 69, 59, 0.05);
}
.filter-chips {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
}
.filter-chip {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 18px;
    border-radius: var(--radius-chip);
    border: 1px solid var(--border-light);
    background: #fff;
    color: var(--text-main);
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    white-space: nowrap;
}
.filter-chip:hover {
    border-color: var(--accent);
    color: var(--accent-dark);
    transform: translateY(-1px);
}
.filter-chip.active {
    background: var(--primary);
    color: #fff;
    border-color: var(--primary);
}
.filter-chip .count {
    font-size: 12px;
    opacity: 0.7;
    font-weight: 400;
}
/* Media List */
.media-section {
    background: #fff;
}
.media-list {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 28px;
}
.media-card {
    display: flex;
    gap: 20px;
    background: var(--card-bg);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-card);
    padding: 16px;
    transition: box-shadow 0.3s ease, transform 0.3s ease, border-color 0.3s ease;
}
.media-card:hover {
    box-shadow: var(--shadow-card-hover);
    transform: translateY(-4px);
    border-color: var(--accent);
}
.media-thumb {
    width: 168px;
    flex-shrink: 0;
    border-radius: 12px;
    overflow: hidden;
    background: var(--bg-light);
}
.media-thumb img {
    width: 100%;
    aspect-ratio: 3 / 2;
    object-fit: cover;
    transition: transform 0.5s ease;
}
.media-card:hover .media-thumb img {
    transform: scale(1.05);
}
.media-body {
    flex: 1;
    display: flex;
    flex-direction: column;
    min-width: 0;
}
.media-meta {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 12px;
    color: var(--text-muted);
    margin-bottom: 8px;
    letter-spacing: 0.03em;
}
.media-tag {
    display: inline-block;
    background: rgba(200, 155, 90, 0.14);
    color: var(--accent-dark);
    padding: 2px 10px;
    border-radius: 999px;
    font-weight: 500;
}
.media-date {
    color: var(--text-muted);
}
.media-body h3 {
    font-family: var(--font-serif);
    font-size: 19px;
    line-height: 1.4;
    color: var(--primary);
    margin-bottom: 10px;
    font-weight: 700;
}
.media-body p {
    font-size: 14px;
    line-height: 1.7;
    color: var(--text-muted);
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.media-link {
    margin-top: auto;
    padding-top: 12px;
    font-size: 14px;
    font-weight: 600;
    color: var(--primary);
    display: inline-flex;
    align-items: center;
    gap: 6px;
    transition: color 0.3s ease, gap 0.3s ease;
}
.media-link i {
    font-size: 12px;
    transition: transform 0.3s ease;
}
.media-card:hover .media-link {
    color: var(--accent-dark);
}
.media-card:hover .media-link i {
    transform: translateX(4px);
}
/* Rec Section */
.rec-section {
    background: var(--bg-light);
    border-top: 1px solid var(--border-light);
    border-bottom: 1px solid var(--border-light);
}
.rec-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}
.rec-card {
    background: var(--card-bg);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-card);
    overflow: hidden;
    transition: box-shadow 0.3s ease, transform 0.3s ease, border-color 0.3s ease;
}
.rec-card:hover {
    box-shadow: var(--shadow-card-hover);
    transform: translateY(-4px);
    border-color: var(--accent);
}
.rec-cover {
    position: relative;
    overflow: hidden;
}
.rec-cover img {
    width: 100%;
    aspect-ratio: 16 / 9;
    object-fit: cover;
    transition: transform 0.5s ease;
}
.rec-card:hover .rec-cover img {
    transform: scale(1.05);
}
.rec-badge {
    position: absolute;
    top: 12px;
    left: 12px;
    background: var(--accent);
    color: #fff;
    font-size: 12px;
    font-weight: 600;
    padding: 3px 12px;
    border-radius: 999px;
    letter-spacing: 0.04em;
}
.rec-body {
    padding: 20px;
}
.rec-body h3 {
    font-family: var(--font-serif);
    font-size: 18px;
    line-height: 1.45;
    color: var(--primary);
    margin-bottom: 8px;
    font-weight: 700;
}
.rec-body p {
    font-size: 14px;
    line-height: 1.7;
    color: var(--text-muted);
}
/* FAQ */
.faq-section {
    background: #fff;
}
.faq-wrap {
    max-width: 820px;
    margin: 0 auto;
}
.faq-item {
    background: var(--card-bg);
    border: 1px solid var(--border-light);
    border-radius: 12px;
    margin-bottom: 14px;
    transition: background 0.3s ease, border-color 0.3s ease;
    overflow: hidden;
}
.faq-item.open {
    background: #F4F7F2;
    border-color: var(--accent);
}
.faq-q {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    width: 100%;
    padding: 20px 24px;
    text-align: left;
    cursor: pointer;
    font-family: var(--font-serif);
    font-size: 17px;
    font-weight: 600;
    color: var(--primary);
    background: transparent;
    transition: color 0.3s ease;
}
.faq-q:hover {
    color: var(--accent-dark);
}
.faq-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 28px;
    height: 28px;
    border-radius: 8px;
    border: 1px solid var(--accent);
    color: var(--accent);
    font-size: 18px;
    font-weight: 400;
    flex-shrink: 0;
    transition: transform 0.35s ease, background 0.3s ease, color 0.3s ease;
}
.faq-item.open .faq-icon {
    transform: rotate(45deg);
    background: var(--accent);
    color: #fff;
}
.faq-a {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s ease, padding 0.4s ease;
}
.faq-item.open .faq-a {
    max-height: 400px;
}
.faq-a p {
    padding: 0 24px 20px;
    font-size: 15px;
    line-height: 1.75;
    color: var(--text-main);
}
/* CTA */
.cta-section {
    background: #fff;
    padding: var(--section-gap) 0;
}
.cta-bar {
    background: linear-gradient(rgba(27, 51, 43, 0.88), rgba(27, 51, 43, 0.94)), url('/assets/images/backpic/back-2.jpg') center / cover no-repeat;
    border-radius: 24px;
    padding: 64px 48px;
    text-align: center;
    color: var(--text-dark-bg);
    position: relative;
    overflow: hidden;
}
.cta-bar h2 {
    font-family: var(--font-serif);
    font-size: 30px;
    line-height: 1.4;
    color: #fff;
    margin-bottom: 14px;
    font-weight: 700;
}
.cta-bar p {
    font-size: 15px;
    color: var(--text-dark-muted);
    max-width: 520px;
    margin: 0 auto 28px;
    line-height: 1.8;
}
.cta-bar .btn {
    margin: 0 6px;
}
/* Footer */
.footer {
    background: var(--primary-dark);
    color: var(--text-dark-bg);
}
.footer-top {
    padding: 64px 0 48px;
    border-bottom: 1px solid #335348;
}
.footer-grid {
    display: grid;
    grid-template-columns: 1.4fr 1fr 1.2fr 1.2fr;
    gap: 40px;
}
.footer-brand h3 {
    display: flex;
    align-items: center;
    gap: 10px;
    font-family: var(--font-serif);
    font-size: 20px;
    color: #fff;
    margin-bottom: 14px;
}
.footer-brand p {
    font-size: 14px;
    line-height: 1.8;
    color: var(--text-dark-muted);
    max-width: 300px;
}
.footer-nav h4,
.footer-timeline h4,
.footer-contact h4 {
    font-size: 15px;
    font-weight: 600;
    color: #fff;
    margin-bottom: 16px;
    letter-spacing: 0.04em;
}
.footer-nav ul,
.footer-contact ul {
    display: flex;
    flex-direction: column;
    gap: 10px;
}
.footer-nav a,
.footer-contact a {
    font-size: 14px;
    color: var(--text-dark-muted);
    transition: color 0.3s ease, padding-left 0.3s ease;
}
.footer-nav a:hover,
.footer-contact a:hover {
    color: var(--accent-light);
    padding-left: 4px;
}
.footer-timeline .tl-item {
    font-size: 14px;
    color: var(--text-dark-muted);
    padding: 6px 0;
    display: flex;
    align-items: center;
    gap: 10px;
}
.footer-timeline .tl-item i {
    color: var(--accent);
    width: 18px;
    text-align: center;
}
.footer-contact li {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 14px;
    color: var(--text-dark-muted);
}
.footer-contact li i {
    color: var(--accent);
    width: 18px;
    text-align: center;
}
.footer-bottom {
    padding: 20px 0;
}
.footer-bottom .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 12px;
}
.footer-bottom p {
    font-size: 13px;
    color: var(--text-dark-muted);
}
.footer-bottom a {
    font-size: 13px;
    color: var(--text-dark-muted);
    transition: color 0.3s ease;
}
.footer-bottom a:hover {
    color: var(--accent-light);
}
/* Responsive */
@media (max-width: 1024px) {
    .media-list {
        grid-template-columns: 1fr;
    }
    .rec-grid {
        grid-template-columns: 1fr 1fr;
    }
    .footer-grid {
        grid-template-columns: 1fr 1fr;
    }
    .timeline-nav .tl-line {
        width: 14px;
    }
}
@media (max-width: 768px) {
    :root {
        --section-gap: 64px;
        --header-height: 62px;
    }
    .nav-inner {
        gap: 10px;
    }
    .logo {
        font-size: 18px;
    }
    .logo-mark {
        width: 32px;
        height: 32px;
        font-size: 16px;
    }
    .timeline-nav {
        flex: 1;
        overflow-x: auto;
        scrollbar-width: none;
        -ms-overflow-style: none;
        justify-content: flex-start;
        min-width: 0;
    }
    .timeline-nav::-webkit-scrollbar {
        display: none;
    }
    .chip {
        padding: 5px 12px;
        font-size: 12px;
    }
    .timeline-nav .tl-line {
        width: 16px;
        flex-shrink: 0;
    }
    .main-nav {
        position: fixed;
        top: var(--header-height);
        left: 0;
        right: 0;
        background: rgba(27, 51, 43, 0.97);
        padding: 16px 24px 20px;
        display: none;
        border-bottom: 1px solid #335348;
        box-shadow: 0 12px 30px rgba(0, 0, 0, 0.3);
    }
    .main-nav.open {
        display: block;
    }
    .main-nav ul {
        flex-direction: column;
        align-items: flex-start;
        gap: 4px;
    }
    .main-nav a {
        display: block;
        width: 100%;
        padding: 12px 8px;
        font-size: 16px;
    }
    .main-nav a::after {
        display: none;
    }
    .main-nav a.active {
        background: rgba(200, 155, 90, 0.12);
        color: var(--accent-light);
    }
    .nav-toggle {
        display: flex;
    }
    .page-hero {
        padding: 132px 0 52px;
    }
    .page-hero h1 {
        font-size: 30px;
        line-height: 1.35;
    }
    .page-hero .lead {
        font-size: 15px;
    }
    .filter-bar {
        top: var(--header-height);
    }
    .filter-chips {
        flex-wrap: nowrap;
        overflow-x: auto;
        padding-bottom: 4px;
        scrollbar-width: none;
    }
    .filter-chips::-webkit-scrollbar {
        display: none;
    }
    .filter-chip {
        flex-shrink: 0;
    }
    .media-card {
        flex-direction: column;
        padding: 14px;
    }
    .media-thumb {
        width: 100%;
    }
    .media-thumb img {
        aspect-ratio: 16 / 9;
    }
    .rec-grid {
        grid-template-columns: 1fr;
    }
    .cta-bar {
        padding: 48px 24px;
        border-radius: 18px;
    }
    .cta-bar h2 {
        font-size: 24px;
    }
    .cta-bar .btn {
        margin-bottom: 10px;
    }
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 32px;
    }
    .footer-bottom .container {
        flex-direction: column;
        text-align: center;
    }
}
@media (max-width: 520px) {
    .container {
        padding: 0 16px;
    }
    .page-hero h1 {
        font-size: 26px;
    }
    .section-head h2 {
        font-size: 24px;
    }
    .btn {
        padding: 12px 22px;
    }
}