/* 下载弹窗样式 深海科幻改版 */
        #downloadModal {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: rgba(4, 12, 26, 0.9);
            z-index: 9999;
            display: flex;
            align-items: center;
            justify-content: center;
            opacity: 0;
            pointer-events: none;
            transition: all 0.4s ease;
        }
        #downloadModal.show {
            opacity: 1;
            pointer-events: all;
        }
        .modal-img-box {
            width: 320px;
            height: 320px;
            position: relative;
            border: 2px solid #4cc9f0;
            border-radius: 12px;
            overflow: hidden;
            box-shadow: 0 0 35px rgba(76, 201, 240, 0.35);
        }
        .modal-img-box img {
            width: 100%;
            height: 100%;
            object-fit: contain;
        }
        .modal-close {
            position: absolute;
            top: -16px;
            right: -16px;
            width: 38px;
            height: 38px;
            background: #00b4d8;
            color: #fff;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            font-size: 18px;
            border: 2px solid #ffffff;
        }

        /* ========== 全局变量 深海科幻主题 ========== */
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            scroll-behavior: smooth;
        }
        :root {
            --sea-main: #00b4d8;
            --sea-light: #4cc9f0;
            --sea-deep: #0353a4;
            --dark-sea: #040c1a;
            --mid-sea: #071830;
            --glass-border: rgba(76, 201, 240, 0.2);
            --text-white: #f0f8ff;
            --text-fade: #a0c4e4;
            /* 尺寸变量 */
            --container-width: 1200px;
            --gap: 20px;
            --radius-lg: 16px;
            --radius-md: 8px;
            --radius-sm: 4px;
        }
        body {
            font-family: 'Noto Sans SC', sans-serif;
            background-color: var(--dark-sea);
            color: var(--text-white);
            overflow-x: hidden;
            background-image: radial-gradient(rgba(76, 201, 240, 0.04) 1px, transparent 1px);
            background-size: 50px 50px;
        }
        a {
            text-decoration: none;
            color: inherit;
        }
        ul {
            list-style: none;
        }
        img {
            max-width: 100%;
            display: block;
        }
        video {
            max-width: 100%;
            display: block;
        }
        .container {
            max-width: var(--container-width);
            width: 100%;
            margin: 0 auto;
            padding: 0 16px;
        }
        .btn {
            display: inline-block;
            padding: 12px 24px;
            border-radius: 999px;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s ease;
            text-align: center;
        }
        .text-center { text-align: center; }
        .flex { display: flex; }
        .flex-col { flex-direction: column; }
        .justify-between { justify-content: space-between; }
        .justify-center { justify-content: center; }
        .items-center { align-items: center; }
        .gap-4 { gap: 16px; }
        .gap-6 { gap: 24px; }
        .gap-8 { gap: 32px; }
        .mb-4 { margin-bottom: 16px; }
        .mb-6 { margin-bottom: 24px; }
        .mb-8 { margin-bottom: 32px; }
        .mb-10 { margin-bottom: 40px; }
        .mb-16 { margin-bottom: 64px; }
        .mt-12 { margin-top: 48px; }
        .py-16 { padding: 64px 0; }
        .py-20 { padding: 80px 0; }
        .hidden { display: none; }
        .relative { position: relative; }
        .absolute { position: absolute; }
        .inset-0 { top:0; left:0; right:0; bottom:0; }
        .z-0 { z-index: 0; }
        .z-10 { z-index: 10; }
        .z-20 { z-index: 20; }
        .z-50 { z-index: 50; }
        .overflow-hidden { overflow: hidden; }

        /* ========== 专属深海动画 ========== */
        @keyframes floatWave {
            0% { transform: translateY(0px); filter: brightness(1); }
            50% { transform: translateY(-18px); filter: brightness(1.2); }
            100% { transform: translateY(0px); filter: brightness(1); }
        }
        @keyframes seaPulse {
            0% { box-shadow: 0 0 0 0 rgba(0, 180, 216, 0.6); }
            70% { box-shadow: 0 0 0 12px rgba(0, 180, 216, 0); }
            100% { box-shadow: 0 0 0 0 rgba(0, 180, 216, 0); }
        }
        @keyframes fluidFlow {
            0% { background-position: 0% 50%; }
            50% { background-position: 100% 50%; }
            100% { background-position: 0% 50%; }
        }
        @keyframes fadeUp {
            0% { opacity: 0; transform: translateY(30px); }
            100% { opacity: 1; transform: translateY(0); }
        }
        .text-shadow-sea { text-shadow: 0 0 10px rgba(76, 201, 240, 0.5), 2px 2px 6px #000; }
        .animate-wave { animation: floatWave 6s ease-in-out infinite; }
        .sea-pulse { animation: seaPulse 2.2s infinite; }
        .animate-fadeUp { animation: fadeUp 1s ease-in-out; }
        .fluid-gradient {
            background: linear-gradient(90deg, var(--sea-deep), var(--sea-main), var(--sea-light), var(--sea-main));
            background-size: 300% 300%;
            animation: fluidFlow 9s ease infinite;
        }

        /* 全局滚动条美化 */
        ::-webkit-scrollbar { width: 6px; height: 6px; }
        ::-webkit-scrollbar-track { background: var(--dark-sea); }
        ::-webkit-scrollbar-thumb { background: var(--sea-main); border-radius: 3px; }

        /* 悬浮客服提示框 */
        .tooltip { position: relative; cursor: pointer; }
        .tooltip .tooltip-text {
            visibility: hidden;
            opacity: 0;
            transition: opacity 0.3s, top 0.3s;
            position: absolute;
            z-index: 100;
            top: 100%;
            left: 50%;
            transform: translateX(-50%);
            background-color: var(--mid-sea);
            backdrop-filter: blur(6px);
            color: var(--text-white);
            text-align: center;
            padding: 12px;
            border-radius: 10px;
            border: 1px solid var(--glass-border);
            min-width: 210px;
            pointer-events: none;
            margin-top: 12px;
        }
        .tooltip:hover .tooltip-text {
            visibility: visible;
            opacity: 1;
            top: 105%;
        }
        .tooltip .tooltip-text::after {
            content: "";
            position: absolute;
            bottom: 100%;
            left: 50%;
            margin-left: -5px;
            border-width: 5px;
            border-style: solid;
            border-color: transparent transparent var(--mid-sea) transparent;
        }

        /* 服务器标签 */
        .server-tag {
            border: 2px solid var(--text-fade);
            text-align: center;
            padding: 8px 12px;
            border-radius: 8px;
            transition: all 0.3s ease;
            cursor: pointer;
            white-space: nowrap;
        }
        .server-tag:hover {
            border-color: var(--sea-main);
            background-color: rgba(0, 180, 216, 0.1);
        }
        .server-tag-popular {
            border: 2px solid var(--text-fade);
            position: relative;
            text-align: center;
            padding: 8px 12px;
            border-radius: 8px;
            transition: all 0.3s ease;
            cursor: pointer;
            white-space: nowrap;
        }
        .server-tag-popular:hover { background-color: rgba(0, 180, 216, 0.1); }
        .server-tag-popular::after {
            content: "热门";
            position: absolute;
            top: -12px;
            right: -12px;
            background-color: var(--sea-main);
            color: white;
            font-size: 12px;
            font-weight: bold;
            padding: 2px 8px;
            border-radius: 999px;
        }
        .server-status-indicator {
            position: absolute;
            top: 50%;
            left: 8px;
            transform: translateY(-50%);
            width: 8px;
            height: 8px;
            border-radius: 50%;
        }

        /* 页脚标题划线 */
        .footer-column-title {
            position: relative;
            display: inline-block;
            padding-bottom: 8px;
            margin-bottom: 24px;
            font-size: 18px;
            font-weight: bold;
        }
        .footer-column-title::after {
            content: "";
            position: absolute;
            bottom: 0;
            left: 0;
            height: 2px;
            width: 40px;
            background-color: var(--sea-main);
        }

        /* ========== 页面模块样式 ========== */
        /* 导航栏 */
        #navbar {
            position: fixed;
            width: 100%;
            top: 0;
            padding: 16px 0;
            transition: all 0.3s ease;
            z-index: 50;
        }
        #navbar .nav-wrap {
            display: flex;
            justify-content: space-between;
            align-items: center;
            height: 60px;
        }
        #navbar .logo img { height: 60px; }
        #navbar .nav-list {
            display: flex;
            gap: 40px;
        }
        #navbar .nav-list a {
            font-size: 18px;
            transition: color 0.3s ease;
        }
        #navbar .nav-list a:hover { color: var(--sea-light); }
        #menu-toggle {
            font-size: 24px;
            cursor: pointer;
            display: none;
            color: var(--text-white);
            background: transparent;
            border: none;
            outline: none;
        }

        /* 移动端导航菜单 */
        #mobile-menu {
            background-color: rgba(4, 12, 26, 0.97);
            backdrop-filter: blur(14px);
            position: fixed;
            width: 100%;
            left: 0;
            top: 92px;
            transform: translateY(-150%);
            opacity: 0;
            transition: all 0.3s ease-in-out;
            pointer-events: none;
            padding: 24px 16px;
            z-index: 49;
            border-bottom: 1px solid rgba(76, 201, 240, 0.25);
        }
        #mobile-menu.active {
            transform: translateY(0);
            opacity: 1;
            pointer-events: auto;
        }
        #mobile-menu .mobile-nav-links {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }
        #mobile-menu a {
            padding: 12px 0;
            font-size: 18px;
            transition: color 0.3s ease;
            border-bottom: 1px solid rgba(240, 248, 255, 0.1);
            padding-bottom: 16px;
        }
        #mobile-menu a:hover { color: var(--sea-light); }
        #mobile-menu .mobile-support {
            margin-top: 20px;
            padding: 12px 0;
            font-size: 18px;
            color: var(--sea-main);
            cursor: pointer;
        }
        #mobile-menu .btn {
            background: linear-gradient(135deg, var(--sea-deep), var(--sea-main));
            color: white;
            padding: 16px 24px;
            font-size: 18px;
            font-weight: 600;
            border-radius: 999px;
            margin-top: 20px;
            text-align: center;
        }
        #mobile-menu .btn:hover { filter: brightness(1.15); }

        /* 客服弹窗 */
        #support-modal {
            position: fixed;
            inset: 0;
            background-color: rgba(2, 8, 18, 0.88);
            backdrop-filter: blur(6px);
            z-index: 100;
            display: flex;
            align-items: center;
            justify-content: center;
            opacity: 0;
            pointer-events: none;
            transition: opacity 0.3s ease;
        }
        #support-modal.show {
            opacity: 1;
            pointer-events: auto;
        }
        #support-modal .modal-content {
            background-color: var(--mid-sea);
            border: 1px solid var(--glass-border);
            border-radius: 16px;
            padding: 24px;
            max-width: 320px;
            width: 100%;
            margin: 0 16px;
            transform: scale(0.95);
            transition: transform 0.3s ease;
            box-shadow: 0 0 30px rgba(0, 180, 216, 0.12);
        }
        #support-modal.show .modal-content {
            transform: scale(1);
        }
        #support-modal .modal-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 16px;
        }
        #support-modal .modal-header h3 {
            font-size: 20px;
            font-weight: bold;
            color: var(--sea-light);
        }
        #support-modal .modal-header #close-modal {
            color: var(--text-fade);
            cursor: pointer;
            font-size: 20px;
        }
        #support-modal .modal-header #close-modal:hover { color: var(--sea-main); }
        #support-modal .modal-body { display: flex; flex-direction: column; align-items: center; }
        #support-modal .modal-body img {
            width: 224px;
            height: 224px;
            object-fit: cover;
            border-radius: 8px;
            border: 2px solid var(--sea-main);
            padding: 8px;
            margin-bottom: 16px;
        }
        #support-modal .modal-body p { text-align: center; }
        #support-modal .modal-body p:last-child {
            font-size: 14px;
            color: var(--text-fade);
        }

        /* 首屏英雄区域 */
        #home {
            height: 100vh;
            display: flex;
            align-items: center;
            justify-content: center;
            position: relative;
            overflow: hidden;
            padding-top: 92px;
        }
        #home .bg-video {
            position: absolute;
            inset: 0;
            z-index: 0;
        }
        #home .bg-video::after {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(to bottom, rgba(4,12,26,0.8), rgba(4,12,26,0.6), var(--dark-sea));
            z-index: 1;
        }
        #home .bg-video video,
        #home .bg-video img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        #home .home-content {
            position: relative;
            z-index: 2;
            text-align: center;
            max-width: 1200px;
            width: 100%;
            padding: 0 16px;
        }
        #home .home-content h1 {
            font-family: 'Rajdhani', sans-serif;
            font-size: clamp(42px, 8vw, 88px);
            font-weight: 700;
            line-height: 1.2;
            text-shadow-sea;
            margin-bottom: 24px;
            color: white;
            animation: fadeUp 1s ease-in-out;
        }
        #home .home-content p {
            font-size: clamp(16px, 3vw, 24px);
            max-width: 960px;
            margin: 0 auto 40px;
            text-shadow: 2px 2px 5px rgba(0,0,0,0.6);
            color: var(--text-fade);
            animation: fadeUp 1.5s ease-in-out;
        }
        #home .btn-group {
            display: flex;
            flex-direction: column;
            gap: 16px;
            margin-bottom: 40px;
            animation: fadeUp 2s ease-in-out;
        }
        #home .btn-primary {
            background: linear-gradient(135deg, var(--sea-deep), var(--sea-main));
            color: white;
            padding: 14px 36px;
            font-size: 18px;
            font-weight: 600;
            border-radius: 999px;
            transition: all 0.3s ease;
            border: none;
        }
        #home .btn-primary:hover { 
            filter: brightness(1.18);
            transform: scale(1.05);
            box-shadow: 0 0 22px rgba(0, 180, 216, 0.4);
        }
        #home .btn-outline {
            background-color: transparent;
            border: 2px solid var(--text-fade);
            color: var(--text-white);
            padding: 12px 32px;
            font-size: 18px;
            font-weight: 600;
            border-radius: 999px;
            transition: all 0.3s ease;
        }
        #home .btn-outline:hover {
            border-color: var(--sea-main);
            color: var(--sea-light);
            background: rgba(0, 180, 216, 0.08);
        }
        #home .scroll-down {
            position: absolute;
            bottom: 40px;
            left: 50%;
            transform: translateX(-50%);
            color: var(--text-fade);
            transition: color 0.3s ease;
            animation: floatWave 4.5s infinite;
        }
        #home .scroll-down:hover { color: var(--sea-light); }
        #home .scroll-down i { font-size: 24px; }

        /* 游戏介绍 */
        #intro {
            padding: 80px 0;
            background: linear-gradient(135deg, #061122 0%, #0a1a33 100%);
        }
        #intro .section-title {
            font-family: 'Rajdhani';
            font-size: clamp(28px,5vw,48px);
            font-weight: bold;
            margin-bottom: 64px;
            text-align: center;
            color: var(--sea-light);
        }
        #intro .intro-content {
            max-width: 960px;
            margin: 0 auto;
            background-color: rgba(7, 24, 48, 0.45);
            backdrop-filter: blur(5px);
            border-radius: 16px;
            padding: 36px 48px;
            border: 1px solid var(--glass-border);
        }
        #intro .intro-content p {
            font-size: 18px;
            line-height: 1.8;
            margin-bottom: 24px;
            color: var(--text-fade);
        }
        #intro .intro-content p:last-child { margin-bottom: 0; }

        /* 游戏特色 */
        #features {
            padding: 80px 0;
            background: linear-gradient(135deg, #061122 0%, #0a1a33 100%);
        }
        #features .section-title {
            font-family: 'Rajdhani';
            font-size: clamp(28px,5vw,48px);
            font-weight: bold;
            margin-bottom: 16px;
            text-align: center;
            color: var(--sea-light);
        }
        #features .section-desc {
            font-size: 18px;
            color: var(--text-fade);
            max-width: 768px;
            margin: 0 auto 64px;
            text-align: center;
        }
        #features .features-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 32px;
        }
        #features .feature-card {
            background-color: rgba(7, 24, 48, 0.4);
            backdrop-filter: blur(4px);
            border-radius: 16px;
            padding: 32px;
            border: 1px solid var(--glass-border);
            transition: all 0.5s ease;
        }
        #features .feature-card:hover {
            border-color: var(--sea-main);
            transform: translateY(-8px);
            box-shadow: 0 12px 26px rgba(0, 180, 216, 0.13);
        }
        #features .feature-card .icon-box {
            width: 64px;
            height: 64px;
            background-color: rgba(0, 180, 216, 0.15);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 24px;
        }
        #features .feature-card .icon-box i {
            color: var(--sea-main);
            font-size: 24px;
        }
        #features .feature-card h3 {
            font-size: 24px;
            font-weight: bold;
            margin-bottom: 16px;
            color: var(--text-white);
        }
        #features .feature-card p {
            color: var(--text-fade);
            line-height: 1.6;
        }

        /* 巨兽图鉴 */
        #dinosaurs {
            padding: 80px 0;
            background: linear-gradient(135deg, #061122 0%, #0a1a33 100%);
        }
        #dinosaurs .section-title {
            font-family: 'Rajdhani';
            font-size: clamp(28px,5vw,48px);
            font-weight: bold;
            margin-bottom: 16px;
            text-align: center;
            color: var(--sea-light);
        }
        #dinosaurs .section-desc {
            font-size: 18px;
            color: var(--text-fade);
            max-width: 768px;
            margin: 0 auto 64px;
            text-align: center;
        }
        #dinosaurs .dino-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 32px;
        }
        #dinosaurs .dino-card {
            background-color: rgba(7, 24, 48, 0.4);
            backdrop-filter: blur(4px);
            border-radius: 16px;
            overflow: hidden;
            border: 1px solid var(--glass-border);
            position: relative;
        }
        #dinosaurs .dino-card .dino-img {
            height: 224px;
            overflow: hidden;
        }
        #dinosaurs .dino-card .dino-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.7s ease;
        }
        #dinosaurs .dino-card:hover .dino-img img { transform: scale(1.1); }
        #dinosaurs .dino-card .dino-type {
            position: absolute;
            top: 12px;
            right: 12px;
            background-color: var(--sea-main);
            color: white;
            font-size: 12px;
            font-weight: 600;
            padding: 4px 8px;
            border-radius: 999px;
        }
        #dinosaurs .dino-card .dino-info {
            padding: 24px;
            text-align: center;
        }
        #dinosaurs .dino-card .dino-info h3 {
            font-size: 24px;
            font-weight: bold;
            margin-bottom: 12px;
            color: var(--text-white);
        }
        #dinosaurs .dino-info p {
            color: var(--text-fade);
            line-height: 1.6;
        }
        #dinosaurs .more-btn {
            display: inline-block;
            border: 2px solid var(--sea-main);
            color: var(--sea-main);
            padding: 12px 32px;
            border-radius: 999px;
            transition: all 0.3s ease;
            margin-top: 48px;
        }
        #dinosaurs .more-btn:hover {
            background: linear-gradient(135deg, var(--sea-deep), var(--sea-main));
            color: white;
        }

        /* 游戏截图 */
        #screenshots {
            padding: 80px 0;
            background-color: var(--dark-sea);
            position: relative;
        }
        #screenshots::after {
            content: "";
            position: absolute;
            inset: 0;
            background-image: url(https://picsum.photos/id/1041/1920/1080);
            background-size: cover;
            background-position: center;
            opacity: 0.07;
            z-index: 0;
        }
        #screenshots .section-title {
            font-family: 'Rajdhani';
            font-size: clamp(28px,5vw,48px);
            font-weight: bold;
            margin-bottom: 16px;
            text-align: center;
            position: relative;
            z-index: 10;
            color: var(--sea-light);
        }
        #screenshots .section-desc {
            font-size: 18px;
            color: var(--text-fade);
            max-width: 768px;
            margin: 0 auto 64px;
            text-align: center;
            position: relative;
            z-index: 10;
        }
        #screenshots .screenshot-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 24px;
            position: relative;
            z-index: 10;
        }
        #screenshots .screenshot-item {
            position: relative;
            overflow: hidden;
            border-radius: 16px;
            cursor: pointer;
            border: 1px solid var(--glass-border);
        }
        #screenshots .screenshot-item img {
            width: 100%;
            height: 256px;
            object-fit: cover;
            transition: transform 0.7s ease;
        }
        #screenshots .screenshot-item:hover img { transform: scale(1.1); }
        #screenshots .screenshot-item::after {
            content: "";
            position: absolute;
            inset: 0;
            background-color: rgba(0, 180, 216, 0.32);
            opacity: 0;
            transition: opacity 0.3s ease;
        }
        #screenshots .screenshot-item:hover::after { opacity: 1; }

        /* 配置需求 */
        #requirements {
            padding: 80px 0;
            background: linear-gradient(135deg, #061122 0%, #0a1a33 100%);
        }
        #requirements .section-title {
            font-family: 'Rajdhani';
            font-size: clamp(28px,5vw,48px);
            font-weight: bold;
            margin-bottom: 16px;
            text-align: center;
            color: var(--sea-light);
        }
        #requirements .section-desc {
            font-size: 18px;
            color: var(--text-fade);
            max-width: 768px;
            margin: 0 auto 64px;
            text-align: center;
        }
        #requirements .req-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 32px;
            max-width: 960px;
            margin: 0 auto;
        }
        #requirements .req-card {
            background-color: rgba(7, 24, 48, 0.4);
            backdrop-filter: blur(4px);
            border-radius: 16px;
            padding: 32px;
            border: 1px solid var(--glass-border);
        }
        #requirements .req-card.recommend { border-color: rgba(0, 180, 216, 0.4); }
        #requirements .req-card h3 {
            font-size: 24px;
            font-weight: bold;
            margin-bottom: 24px;
            display: flex;
            align-items: center;
            color: var(--text-white);
        }
        #requirements .req-card h3 .icon-box {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-right: 12px;
        }
        #requirements .req-card.basic .icon-box {
            background-color: rgba(160, 196, 228, 0.2);
        }
        #requirements .req-card.basic .icon-box i { color: var(--text-fade); }
        #requirements .req-card.recommend .icon-box {
            background-color: rgba(0, 180, 216, 0.2);
        }
        #requirements .req-card.recommend .icon-box i { color: var(--sea-main); }
        #requirements .req-card ul { gap: 16px; display: flex; flex-direction: column; }
        #requirements .req-card ul li {
            display: flex;
            gap: 16px;
            color: var(--text-fade);
        }
        #requirements .req-card ul li span:first-child {
            width: 128px;
            font-weight: 600;
            color: var(--text-fade);
        }

        /* 限时福利板块 */
        #福利 {
            padding: 80px 0;
            background-color: var(--dark-sea);
            position: relative;
            overflow: hidden;
        }
        #福利::after {
            content: "";
            position: absolute;
            inset: 0;
            background-image: url(https://picsum.photos/id/1039/1920/1080);
            background-size: cover;
            background-position: center;
            z-index: 0;
            opacity: 0.1;
        }
        #福利 .bg-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(to right, var(--dark-sea), rgba(4,12,26,0.93), rgba(4,12,26,0.86));
            z-index: 1;
        }
        #福利 .福利-content {
            max-width: 800px;
            margin: 0 auto;
            text-align: center;
            position: relative;
            z-index: 2;
        }
        #福利 .tag {
            display: inline-block;
            padding: 4px 16px;
            background: linear-gradient(135deg, var(--sea-deep), var(--sea-main));
            color: white;
            font-size: 14px;
            font-weight: bold;
            border-radius: 999px;
            margin-bottom: 24px;
            animation: seaPulse 2s infinite;
        }
        #福利 h2 {
            font-family: 'Rajdhani';
            font-size: clamp(28px,5vw,48px);
            font-weight: bold;
            margin-bottom: 24px;
            color: var(--sea-light);
        }
        #福利 p {
            font-size: 20px;
            color: var(--text-fade);
            max-width: 640px;
            margin: 0 auto 40px;
        }
        #福利 .code-box {
            background-color: rgba(7, 24, 48, 0.7);
            backdrop-filter: blur(4px);
            border-radius: 16px;
            padding: 32px;
            border: 2px solid var(--sea-main);
            max-width: 480px;
            margin: 0 auto 40px;
            display: flex;
            align-items: center;
            gap: 16px;
        }
        #福利 .code-box #gift-code {
            flex: 1;
            font-size: 24px;
            font-family: monospace;
            font-weight: bold;
            background-color: rgba(4, 12, 26, 0.6);
            padding: 16px 24px;
            border-radius: 8px;
            border: 1px solid var(--glass-border);
            color: var(--sea-light);
        }
        #福利 .code-box #copy-btn {
            background: linear-gradient(135deg, var(--sea-deep), var(--sea-main));
            color: white;
            padding: 16px;
            border-radius: 8px;
            cursor: pointer;
            transition: all 0.3s ease;
            border: none;
            outline: none;
        }
        #福利 .code-box #copy-btn:hover { filter: brightness(1.1); }
        #福利 #copy-message {
            color: var(--sea-light);
            margin-top: 16px;
            display: none;
        }
        #福利 .gift-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 24px;
            margin-bottom: 40px;
        }
        #福利 .gift-item {
            background-color: rgba(7, 24, 48, 0.6);
            backdrop-filter: blur(4px);
            padding: 24px;
            border-radius: 8px;
            border: 1px solid var(--glass-border);
        }
        #福利 .gift-item .icon-box {
            width: 48px;
            height: 48px;
            background-color: rgba(0, 180, 216, 0.15);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 16px;
        }
        #福利 .gift-item .icon-box i {
            color: var(--sea-main);
            font-size: 24px;
        }
        #福利 .gift-item h3 { font-weight: bold; margin-bottom: 8px; color: #fff; }
        #福利 .gift-item p {
            font-size: 14px;
            color: var(--text-fade);
            margin: 0;
        }

        /* 关注板块 */
        .follow-section {
            padding: 64px 0;
            background: linear-gradient(135deg, #061122 0%, #0a1a33 100%);
        }
        .follow-section .content {
            max-width: 640px;
            margin: 0 auto;
            text-align: center;
        }
        .follow-section h2 {
            font-family: 'Rajdhani';
            font-size: clamp(24px,4vw,40px);
            font-weight: bold;
            margin-bottom: 16px;
            color: var(--sea-light);
        }
        .follow-section p {
            color: var(--text-fade);
            margin-bottom: 32px;
        }
        .follow-section .qrcode {
            width: 256px;
            height: 256px;
            background-color: rgba(7, 24, 48, 0.5);
            border-radius: 8px;
            padding: 16px;
            border: 2px solid var(--sea-main);
            margin: 0 auto;
        }
        .follow-section .qrcode img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: 4px;
        }
        .follow-section .desc {
            font-size: 14px;
            color: var(--text-fade);
            margin-top: 24px;
        }

        /* 页脚 */
        footer {
            background-color: var(--dark-sea);
            padding: 64px 0;
            box-shadow: 0 -4px 20px rgba(0, 180, 216, 0.07);
        }
        footer .footer-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 40px;
            margin-bottom: 64px;
        }
        footer .footer-col .logo img { height: 60px; margin-bottom: 24px; }
        footer .footer-col p {
            color: var(--text-fade);
            margin-bottom: 24px;
            line-height: 1.6;
        }
        footer .social-links {
            display: flex;
            gap: 16px;
        }
        footer .social-links a {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background-color: var(--mid-sea);
            border: 1px solid var(--glass-border);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-fade);
            transition: all 0.3s ease;
        }
        footer .social-links a:hover {
            background: linear-gradient(135deg, var(--sea-deep), var(--sea-main));
            color: white;
            border-color: var(--sea-main);
        }
        footer .footer-col ul { gap: 12px; display: flex; flex-direction: column; }
        footer .footer-col ul li a {
            color: var(--text-fade);
            transition: color 0.3s ease;
        }
        footer .footer-col ul li a:hover { color: var(--sea-main); }
        footer .partner-section { margin-bottom: 48px; }
        footer .partner-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 24px;
        }
        footer .partner-grid a {
            background-color: rgba(7, 24, 48, 0.6);
            backdrop-filter: blur(4px);
            border-radius: 8px;
            padding: 16px;
            border: 1px solid var(--glass-border);
            display: flex;
            align-items: center;
            justify-content: center;
            height: 64px;
            transition: all 0.3s ease;
            color: var(--text-fade);
            font-size: 14px;
        }
        footer .partner-grid a:hover { border-color: var(--sea-main); }
        footer .copyright {
            background-color: rgba(7, 24, 48, 0.5);
            backdrop-filter: blur(4px);
            border-radius: 8px;
            padding: 24px;
            text-align: center;
            border: 1px solid var(--glass-border);
        }
        footer .copyright p {
            color: var(--text-fade);
            font-size: 14px;
            margin-bottom: 12px;
            line-height: 1.6;
        }
        footer .copyright p:last-child { margin-bottom: 0; }

        /* 首屏二维码卡片 */
        .hero-qr-card {
            display: inline-block; position: relative; margin-top: 32px; animation: fadeUp 2s ease;
        }
        .hero-qr-glow {
            position: absolute; inset: -3px;
            background: linear-gradient(135deg, #00b4d8, #4cc9f0, #00b4d8);
            background-size: 300% 300%;
            border-radius: 22px; animation: fluidFlow 4s ease infinite;
            opacity: 0.6; filter: blur(6px);
        }
        .hero-qr-inner {
            position: relative; display: flex; align-items: center; gap: 24px;
            background: rgba(4, 12, 26, 0.88); backdrop-filter: blur(16px);
            border: 1px solid rgba(255,255,255,0.1);
            border-radius: 20px; padding: 20px 28px 20px 20px;
        }
        .hero-qr-image {
            width: 130px; height: 130px; flex-shrink: 0;
            background: #fff; border-radius: 14px; padding: 8px;
            box-shadow: 0 4px 20px rgba(0,0,0,0.3);
        }
        .hero-qr-image img { width: 100%; height: 100%; object-fit: cover; border-radius: 8px; }
        .hero-qr-info { text-align: left; }
        .hero-qr-badge {
            display: inline-flex; align-items: center; gap: 6px;
            padding: 4px 12px; background: linear-gradient(135deg, #00b4d8, #0353a4);
            color: white; font-size: 12px; font-weight: 600;
            border-radius: 999px; margin-bottom: 8px;
        }
        .hero-qr-heading {
            font-size: 18px !important; font-weight: 700 !important;
            color: #fff !important; margin: 0 0 12px 0 !important;
            text-shadow: none !important;
        }
        .hero-qr-tags { display: flex; gap: 8px; flex-wrap: wrap; }
        .hero-qr-tags span {
            display: inline-flex; align-items: center; gap: 4px;
            padding: 4px 10px; background: rgba(0, 180, 216, 0.15);
            border: 1px solid rgba(0, 180, 216, 0.3);
            border-radius: 999px; font-size: 12px; color: var(--text-fade);
        }
        .hero-qr-tags span i { color: var(--sea-light); font-size: 11px; }

        /* ========== 响应式媒体查询 ========== */
        @media (max-width: 767px) {
            #navbar .nav-list { display: none; }
            #menu-toggle { display: block; }
            #home {
                height: auto;
                min-height: 100vh;
                padding: 120px 0 60px;
            }
            #intro .intro-content {
                padding: 24px 16px;
            }
        }
        
        @media (min-width: 768px) {
            #menu-toggle { display: none; }
            #mobile-menu { display: none !important; }
            
            #home .btn-group { flex-direction: row; justify-content: center; }
            #features .features-grid { grid-template-columns: repeat(2,1fr); }
            #dinosaurs .dino-grid { grid-template-columns: repeat(2,1fr); }
            #screenshots .screenshot-grid { grid-template-columns: repeat(2,1fr); }
            #requirements .req-grid { grid-template-columns: repeat(2,1fr); }
            #福利 .gift-grid { grid-template-columns: repeat(3,1fr); }
            footer .footer-grid { grid-template-columns: repeat(2,1fr); }
            footer .partner-grid { grid-template-columns: repeat(3,1fr); }
        }
        
        @media (min-width: 1024px) {
            #features .features-grid { grid-template-columns: repeat(3,1fr); }
            #dinosaurs .dino-grid { grid-template-columns: repeat(3,1fr); }
            #screenshots .screenshot-grid { grid-template-columns: repeat(3,1fr); }
            footer .footer-grid { grid-template-columns: repeat(4,1fr); }
            footer .partner-grid { grid-template-columns: repeat(5,1fr); }
        }