/* ============================================
   Nav Home — 全新设计系统
   ============================================ */

/* ---------- 变量 ---------- */
:root {
    --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', sans-serif;
    --bg: #06060e;
    --bg-elevated: rgba(255,255,255,0.03);
    --bg-card: rgba(255,255,255,0.03);
    --bg-card-hover: rgba(255,255,255,0.05);
    --surface: rgba(255,255,255,0.06);
    --text-1: #f0f0f5;
    --text-2: #8b8ba7;
    --text-3: #4e4e6a;
    --border: rgba(255,255,255,0.06);
    --border-hover: rgba(255,255,255,0.12);
    --accent: #7c5cfc;
    --accent-2: #5eead4;
    --radius: 14px;
    --ease: cubic-bezier(0.16, 1, 0.3, 1);
}

[data-theme="light"] {
    --bg: #f4f4f8;
    --bg-elevated: rgba(0,0,0,0.02);
    --bg-card: rgba(255,255,255,0.7);
    --bg-card-hover: rgba(255,255,255,0.9);
    --surface: rgba(0,0,0,0.04);
    --text-1: #111118;
    --text-2: #6b6b80;
    --text-3: #a0a0b0;
    --border: rgba(0,0,0,0.07);
    --border-hover: rgba(0,0,0,0.14);
}

/* View Transitions — 主题切换圆形扩散 */
::view-transition-old(root),
::view-transition-new(root) {
    animation: none;
    mix-blend-mode: normal;
}
::view-transition-old(root) { z-index: 1; }
::view-transition-new(root) { z-index: 9999; }

/* 主题切换期间禁用耗性能属性 */
.theme-switching .sidebar,
.theme-switching .sidebar-backdrop,
.theme-switching .hero,
.theme-switching .card-body,
.theme-switching .nav-modal-overlay::before {
    backdrop-filter: none !important;
    -webkit-backdrop-filter: none !important;
}
.theme-switching *,
.theme-switching *::before,
.theme-switching *::after {
    transition-duration: 0s !important;
}

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

html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
    html { scroll-behavior: auto; }
}
body {
    font-family: var(--font);
    background: var(--bg);
    color: var(--text-1);
    min-height: 100vh;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    line-height: 1.6;
}
a { color: inherit; text-decoration: none; }
button { font-family: inherit; }

/* 滚动条 */
::-webkit-scrollbar { width: 5px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: rgba(124,92,252,0.3); border-radius: 5px; }

/* 无缝循环滚动 keyframe */
@keyframes tileSlide {
    from { transform: translate3d(0, 0, 0); }
    to   { transform: translate3d(-50%, 0, 0); }
}
@keyframes tileSlideReverse {
    from { transform: translate3d(-50%, 0, 0); }
    to   { transform: translate3d(0, 0, 0); }
}

/* ======================================
   启动遮罩 (Splash)
   ====================================== */
.splash {
    position: fixed;
    inset: 0;
    z-index: 1000;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    background: var(--bg);
    transition: transform 0.6s cubic-bezier(0.4, 0, 0.8, 0.4);
    overflow: hidden;
    cursor: pointer;
}
.splash::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(255,255,255,0.05) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,0.05) 1px, transparent 1px);
    background-size: 60px 60px;
    mask-image: radial-gradient(ellipse at 50% 40%, black 0%, transparent 75%);
    -webkit-mask-image: radial-gradient(ellipse at 50% 40%, black 0%, transparent 75%);
    pointer-events: none;
}

/* 水平光线扫描 */
.splash-wave { display: none; }
.splash-scan {
    position: absolute;
    top: 50%;
    left: 0;
    width: 100%;
    height: 1px;
    transform: translateY(-20px);
    pointer-events: none;
    overflow: hidden;
    opacity: 0.4;
}
.splash-scan::after {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 60%;
    height: 100%;
    background: linear-gradient(90deg, transparent, var(--accent), rgba(94,234,212,0.7), var(--accent), transparent);
    animation: lightScan 4s ease-in-out infinite;
}
@keyframes lightScan {
    0% { left: -60%; }
    100% { left: 100%; }
}
.splash-content {
    position: relative;
    z-index: 2;
}
[data-theme="light"] .splash-scan {
    opacity: 0.3;
}

.splash::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 600px;
    height: 600px;
    transform: translate(-50%, -55%);
    background: radial-gradient(circle, rgba(124,92,252,0.12) 0%, rgba(94,234,212,0.04) 40%, transparent 70%);
    pointer-events: none;
    animation: splashGlowPulse 4s ease-in-out infinite;
}
@keyframes splashGlowPulse {
    0%, 100% { opacity: 0.8; transform: translate(-50%, -55%) scale(1); }
    50% { opacity: 1; transform: translate(-50%, -55%) scale(1.08); }
}
.splash.slide-up {
    transform: translateY(-100%);
    pointer-events: none;
}
[data-theme="light"] .splash::before {
    background-image:
        linear-gradient(rgba(0,0,0,0.06) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0,0,0,0.06) 1px, transparent 1px);
}
[data-theme="light"] .splash::after {
    background: radial-gradient(circle, rgba(124,92,252,0.08) 0%, rgba(94,234,212,0.03) 40%, transparent 70%);
}

/* 动画期间禁止滚动 */
body.animating {
    overflow: hidden;
}

.splash-content {
    text-align: center;
    animation: splashFadeIn 0.8s ease-out both;
    position: relative;
    margin-top: -20px;
}
@keyframes splashFadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

.splash-logo {
    color: var(--accent);
    margin-bottom: 24px;
    animation: splashLogoBreath 3s ease-in-out infinite;
}
.splash-logo img {
    border-radius: 12px;
    box-shadow: 0 4px 24px rgba(124,92,252,0.15);
}
[data-theme="light"] .splash-logo img {
    box-shadow: 0 4px 24px rgba(124,92,252,0.1);
}
@keyframes splashLogoBreath {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.04); }
}
.splash-logo svg {
    stroke-dasharray: 200;
    stroke-dashoffset: 200;
    animation: svgDraw 2s ease forwards, splashLogoPulse 3s ease-in-out 2s infinite;
}
@keyframes svgDraw {
    to { stroke-dashoffset: 0; }
}
@keyframes splashLogoPulse {
    0%, 100% { transform: scale(1); opacity: 0.9; }
    50% { transform: scale(1.05); opacity: 1; }
}

.splash-title {
    font-size: clamp(32px, 6vw, 52px);
    font-weight: 900;
    letter-spacing: -2px;
    background: linear-gradient(90deg, var(--text-1) 0%, var(--accent) 50%, var(--accent-2) 80%, var(--text-1) 100%);
    background-size: 200% 100%;
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 10px;
    animation: splashTitleShimmer 5s ease-in-out infinite;
}
@keyframes splashTitleShimmer {
    0%, 100% { background-position: 0% center; }
    50% { background-position: 100% center; }
}
.splash-desc {
    color: var(--text-2);
    font-size: 15px;
    font-weight: 300;
    margin-bottom: 0;
}

/* 底部箭头引导 */
.splash-arrow-wrap {
    position: absolute;
    bottom: 72px;
    left: 50%;
    transform: translateX(-50%);
    cursor: pointer;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    opacity: 0;
    transition: opacity 0.3s;
    animation: splashArrowIn 0.8s ease-out 1s forwards;
}
.splash-arrow-wrap:hover {
    opacity: 1;
}
@keyframes splashArrowIn {
    to { opacity: 0.7; }
}
.splash-hint {
    font-size: 11px;
    color: var(--text-3);
    letter-spacing: 1px;
}
.splash-arrow {
    color: var(--text-1);
    animation: bounceDown 2s ease-in-out infinite;
}
@keyframes bounceDown {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(5px); }
}

.splash-footer {
    position: absolute;
    bottom: 12px;
    left: 50%;
    transform: translateX(-50%);
    color: var(--text-3);
    font-size: 11px;
    opacity: 0.3;
}

/* ======================================
   斜切背景动画 (Stage)
   ====================================== */
.stage {
    position: fixed;
    inset: 0;
    z-index: 500;
    background: var(--bg);
    overflow: hidden;
    cursor: pointer;
    transition: background 0.6s ease;
}
.stage::after {
    content: '';
    position: absolute;
    inset: 0;
    z-index: 1;
    background: radial-gradient(ellipse at center, transparent 30%, var(--bg) 80%);
    pointer-events: none;
    transition: opacity 0.5s ease;
}
/* 背景提前就位：z-index降到底层，瓷砖立即成为页面背景 */
.stage.fading {
    z-index: 0;
    background: transparent;
    pointer-events: none;
    opacity: 0.85;
}
.stage.fading::after {
    opacity: 0;
}
/* 飞散过渡：瓷砖飞出（保持底层z-index） */
.stage.flyaway {
    z-index: 0;
    background: transparent;
    overflow: visible;
    pointer-events: none;
}
.stage.flyaway::after {
    opacity: 0;
}
/* 持久背景模式：飞散结束后降为底层 */
.stage.stage-bg {
    z-index: 0;
    background: transparent;
    pointer-events: none;
    overflow: hidden;
    cursor: default;
    opacity: 0.75;
}
.stage.stage-bg::after {
    opacity: 0;
}
[data-theme="light"] .stage.stage-bg {
    opacity: 0.75;
}

.stage-tiles {
    position: absolute;
    inset: -30%;
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 14px;
    transform: rotate(-15deg) scale(1.3);
}

.stage-row {
    display: flex;
    width: max-content;
    will-change: transform;
    backface-visibility: hidden;
    transform-style: flat;
    animation: tileSlide 12s linear infinite;
}
.stage-row-set {
    display: flex;
    gap: 14px;
    flex-shrink: 0;
    padding-right: 14px;
}
/* 偶数行用独立反向 keyframe，避免 animation-direction:reverse 的循环跳变 */
.stage-row:nth-child(even) { animation-name: tileSlideReverse; }
/* 错开起始相位，覆盖自身阀术 */
.stage-row:nth-child(1) { animation-duration: 12s; animation-delay: 0s; }
.stage-row:nth-child(2) { animation-duration: 14s; animation-delay: -5.1s; }
.stage-row:nth-child(3) { animation-duration: 11s; animation-delay: -2.3s; }
.stage-row:nth-child(4) { animation-duration: 13s; animation-delay: -7.4s; }
.stage-row:nth-child(5) { animation-duration: 15s; animation-delay: -4.1s; }
.stage-row:nth-child(6) { animation-duration: 10s; animation-delay: -1.7s; }

.stage-tile {
    flex-shrink: 0;
    width: 200px;
    height: 120px;
    border-radius: 10px;
    overflow: hidden;
    contain: layout style;
}
.stage-tile img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}


/* 噪点纹理 */
.bg-noise {
    position: absolute;
    inset: 0;
    opacity: 0.025;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='1'/%3E%3C/svg%3E");
    background-repeat: repeat;
    background-size: 256px 256px;
}
[data-theme="light"] .bg-noise { opacity: 0.04; }

/* 粒子 Canvas */
#particles {
    position: fixed;
    inset: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
    pointer-events: none;
    opacity: 0.4;
}

/* ======================================
   页面容器
   ====================================== */
.page {
    position: relative;
    z-index: 2;
}

/* ======================================
   双栏布局
   ====================================== */
.layout {
    display: flex;
    position: relative;
    min-height: 100vh;
}
.main-area {
    flex: 1;
    min-width: 0;
    overflow-x: hidden;
    display: flex;
    flex-direction: column;
}

/* ======================================
   侧栏导航
   ====================================== */
.sidebar {
    position: sticky;
    top: 0;
    width: 220px;
    height: 100vh;
    flex-shrink: 0;
    padding: 0;
    overflow-y: auto;
    overflow-x: hidden;
    z-index: 10;
    scrollbar-width: none;
    border-right: 1px solid rgba(255,255,255,0.04);
    background: rgba(8,8,20,0.60);
    backdrop-filter: blur(1px);
    -webkit-backdrop-filter: blur(1px);
    display: flex;
    flex-direction: column;
}
[data-theme="light"] .sidebar {
    background: rgba(246,246,250,0.93);
    border-right-color: rgba(0,0,0,0.05);
}
.sidebar::-webkit-scrollbar { display: none; }

/* 侧栏品牌区 */
.sidebar-brand {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    padding: 24px 16px 20px;
    border-bottom: 1px solid var(--border);
    background: linear-gradient(180deg, rgba(255,255,255,0.03) 0%, transparent 100%);
    position: relative;
}
[data-theme="light"] .sidebar-brand {
    background: linear-gradient(180deg, rgba(0,0,0,0.02) 0%, transparent 100%);
}
.sidebar-logo {
    color: var(--accent);
    display: flex;
    flex-shrink: 0;
    width: 52px;
    height: 52px;
    align-items: center;
    justify-content: center;
    background: rgba(124,92,252,0.08);
    border-radius: 14px;
    border: 1px solid rgba(124,92,252,0.1);
    box-shadow: 0 0 20px rgba(124,92,252,0.08);
}
[data-theme="light"] .sidebar-logo {
    background: rgba(124,92,252,0.06);
    border-color: rgba(124,92,252,0.08);
    box-shadow: 0 0 20px rgba(124,92,252,0.05);
}
.sidebar-title {
    font-weight: 700;
    font-size: 14px;
    color: var(--text-1);
    letter-spacing: -0.2px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}
.sidebar-section-label {
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--text-3);
    padding: 14px 16px 6px;
}

.sidebar-nav {
    display: flex;
    flex-direction: column;
    gap: 3px;
    padding: 16px 8px 0;
    flex: 1;
    overflow-y: auto;
}

/* 侧栏底部版权 */
.sidebar-footer {
    padding: 12px 16px;
    border-top: 1px solid var(--border);
    flex-shrink: 0;
}
.sidebar-footer p {
    font-size: 11px;
    color: var(--text-3);
    line-height: 1.5;
    margin: 0;
}

.sidebar-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 9px 12px;
    border-radius: 10px;
    color: var(--text-2);
    font-size: 13px;
    font-weight: 500;
    transition: all 0.2s ease;
    text-decoration: none;
    position: relative;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    border: 1px solid transparent;
}
.sidebar-item::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%) scaleY(0);
    width: 3px;
    height: 18px;
    border-radius: 0 3px 3px 0;
    background: var(--cat-color, var(--accent));
    transition: transform 0.25s ease;
}
.sidebar-item:hover {
    color: var(--text-1);
    background: rgba(255,255,255,0.04);
    border-color: rgba(255,255,255,0.04);
}
[data-theme="light"] .sidebar-item:hover {
    background: rgba(0,0,0,0.04);
    border-color: rgba(0,0,0,0.04);
}
.sidebar-item.active {
    color: var(--cat-color, var(--accent));
    background: rgba(255,255,255,0.10);
    border-color: rgba(255,255,255,0.12);
    font-weight: 600;
}
[data-theme="light"] .sidebar-item.active {
    background: color-mix(in srgb, var(--cat-color, var(--accent)) 10%, transparent);
    border-color: color-mix(in srgb, var(--cat-color, var(--accent)) 16%, transparent);
}
.sidebar-item.active::before {
    transform: translateY(-50%) scaleY(1);
}

.sidebar-icon {
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    font-size: 15px;
    background: var(--surface);
    border-radius: 6px;
    transition: background 0.2s;
}
.sidebar-item.active .sidebar-icon {
    background: rgba(255,255,255,0.14);
}
[data-theme="light"] .sidebar-item.active .sidebar-icon {
    background: color-mix(in srgb, var(--cat-color, var(--accent)) 20%, transparent);
}
.sidebar-icon img {
    width: 18px;
    height: 18px;
    object-fit: contain;
    border-radius: 4px;
}
.sidebar-icon .iconfont {
    font-size: 16px;
    line-height: 1;
}

.sidebar-label {
    flex: 1;
    min-width: 0;
    overflow: hidden;
    text-overflow: ellipsis;
}

.sidebar-count {
    font-size: 11px;
    color: var(--text-3);
    background: none;
    padding: 0;
    border-radius: 0;
    flex-shrink: 0;
    transition: color 0.2s;
}
.sidebar-item.active .sidebar-count {
    color: var(--cat-color, var(--accent));
    background: none;
}

/* 侧栏切换按钮（移动端左上角） */
.sidebar-toggle {
    display: none;
    position: fixed;
    top: 14px;
    left: 14px;
    z-index: 150;
    width: 38px;
    height: 38px;
    border-radius: 50%;
    border: none;
    background: rgba(0,0,0,0.35);
    color: #fff;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: background 0.2s, transform 0.2s;
}
.sidebar-toggle:hover {
    background: rgba(0,0,0,0.55);
    transform: scale(1.08);
}
[data-theme="light"] .sidebar-toggle {
    background: rgba(255,255,255,0.7);
    color: var(--text-2);
    box-shadow: 0 2px 8px rgba(0,0,0,0.08);
}
[data-theme="light"] .sidebar-toggle:hover {
    background: rgba(255,255,255,0.9);
    color: var(--text-1);
}

/* 移动端侧栏遮罩（JS动态创建，无需display:none） */
.sidebar-backdrop {
    position: fixed;
    inset: 0;
    z-index: 199;
    background: rgba(0,0,0,0.5);
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease;
    will-change: opacity;
    cursor: pointer;
}
.sidebar-backdrop.active {
    opacity: 1;
    pointer-events: auto;
}

/* ======================================
   顶部导航栏（已移除，保留兼容）
   ====================================== */
.topbar { display: none; }

/* ======================================
   浮动操作按钮
   ====================================== */
.floating-actions {
    position: fixed;
    top: 14px;
    right: 18px;
    z-index: 150;
    display: flex;
    align-items: center;
    gap: 2px;
    background: rgba(0,0,0,0.3);
    backdrop-filter: blur(12px) saturate(1.2);
    -webkit-backdrop-filter: blur(12px) saturate(1.2);
    border-radius: 24px;
    padding: 4px;
    border: 1px solid rgba(255,255,255,0.06);
}
[data-theme="light"] .floating-actions {
    background: rgba(255,255,255,0.65);
    border-color: rgba(0,0,0,0.06);
    box-shadow: 0 2px 12px rgba(0,0,0,0.06);
}
.fab-btn {
    width: 34px;
    height: 34px;
    border-radius: 50%;
    border: none;
    background: transparent;
    color: rgba(255,255,255,0.8);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: background 0.2s, color 0.2s;
    text-decoration: none;
}
.fab-btn:hover {
    background: rgba(255,255,255,0.12);
    color: #fff;
}
[data-theme="light"] .fab-btn {
    color: var(--text-2);
}
[data-theme="light"] .fab-btn:hover {
    background: rgba(0,0,0,0.06);
    color: var(--text-1);
}

/* 主题切换图标 */
[data-theme="dark"] .icon-sun { display: none; }
[data-theme="dark"] .icon-moon { display: block; }
[data-theme="light"] .icon-sun { display: block; }
[data-theme="light"] .icon-moon { display: none; }

/* ======================================
   搜索弹窗
   ====================================== */
.search-modal {
    position: fixed;
    inset: 0;
    z-index: 999;
    display: flex;
    align-items: flex-start;
    justify-content: center;
    padding-top: 20vh;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.25s, visibility 0.25s;
}
.search-modal.open {
    opacity: 1;
    visibility: visible;
}

.search-backdrop {
    position: absolute;
    inset: 0;
    background: rgba(0,0,0,0.6);
    backdrop-filter: blur(4px);
}
[data-theme="light"] .search-backdrop {
    background: rgba(0,0,0,0.3);
}

.search-dialog {
    position: relative;
    width: 560px;
    max-width: 92vw;
    background: rgba(18,18,32,0.95);
    border: 1px solid var(--border-hover);
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 24px 80px rgba(0,0,0,0.5);
    transform: translateY(-10px);
    transition: transform 0.3s var(--ease);
}
[data-theme="light"] .search-dialog {
    background: rgba(255,255,255,0.97);
}
.search-modal.open .search-dialog {
    transform: translateY(0);
}

.search-input-wrap {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 16px 20px;
    border-bottom: 1px solid var(--border);
    color: var(--text-2);
}
.search-input-wrap input {
    flex: 1;
    border: none;
    background: transparent;
    color: var(--text-1);
    font-size: 16px;
    font-family: var(--font);
    outline: none;
}
.search-input-wrap input::placeholder { color: var(--text-3); }
.search-input-wrap kbd {
    font-family: var(--font);
    font-size: 11px;
    padding: 3px 8px;
    border-radius: 6px;
    border: 1px solid var(--border);
    color: var(--text-3);
    cursor: pointer;
    transition: color 0.2s;
}
.search-input-wrap kbd:hover { color: var(--text-1); }

.search-results {
    max-height: 320px;
    overflow-y: auto;
    padding: 8px;
}
.search-results:empty::after {
    content: '输入关键词开始搜索';
    display: block;
    padding: 24px;
    text-align: center;
    color: var(--text-3);
    font-size: 14px;
}
.search-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 12px;
    border-radius: 10px;
    transition: background 0.15s;
    cursor: pointer;
    text-decoration: none;
    color: inherit;
}
.search-item:hover { background: var(--surface); }
.search-item .si-icon { font-size: 16px; color: var(--text-3); width: 20px; text-align: center; }
.search-item .si-text { flex: 1; }
.search-item .si-title { font-size: 14px; font-weight: 500; }
.search-item .si-desc { font-size: 12px; color: var(--text-3); }
.search-item .si-arrow { color: var(--text-3); }

.search-no-result {
    padding: 32px;
    text-align: center;
    color: var(--text-3);
    font-size: 14px;
}

/* ======================================
   Hero 区域（全宽填充式）
   ====================================== */
.hero {
    position: relative;
    min-height: 260px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    padding: 0;
    background: #0a0a14;
}
.hero::before {
    content: '';
    position: absolute;
    inset: 0;
    z-index: 2;
    background: linear-gradient(
        to bottom,
        rgba(0,0,0,0.25) 0%,
        rgba(0,0,0,0.12) 40%,
        rgba(0,0,0,0.35) 75%,
        rgba(8,8,20,0.95) 100%
    );
    pointer-events: none;
}
[data-theme="light"] .hero::before {
    background: linear-gradient(
        to bottom,
        rgba(0,0,0,0.15) 0%,
        rgba(0,0,0,0.08) 40%,
        rgba(0,0,0,0.2) 70%,
        rgba(244,244,248,0.95) 100%
    );
}
/* 视频背景 */
.hero-video {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
    z-index: 1;
    transform: scale(1.02) translateZ(0);
    will-change: transform;
}
/* 缓冲加载指示 */
.hero.video-buffering::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 28px;
    height: 28px;
    margin: -14px 0 0 -14px;
    border: 2px solid rgba(255,255,255,0.2);
    border-top-color: rgba(255,255,255,0.8);
    border-radius: 50%;
    z-index: 5;
    animation: bufferSpin 0.7s linear infinite;
}
@keyframes bufferSpin {
    to { transform: rotate(360deg); }
}
/* Hero 内容覆盖层 */
.hero-overlay {
    position: relative;
    z-index: 3;
    width: 100%;
    max-width: 600px;
    margin: 0 auto;
    padding: clamp(36px, 6vw, 64px) 24px clamp(28px, 4vw, 44px);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    text-align: center;
}
.hero-title {
    font-size: clamp(22px, 3.5vw, 34px);
    font-weight: 700;
    color: #fff;
    letter-spacing: -0.5px;
    text-shadow: 0 2px 12px rgba(0,0,0,0.5);
    margin: 0;
    line-height: 1.2;
}
.hero-stats {
    font-size: 13px;
    color: rgba(255,255,255,0.75);
    margin: 0 0 4px;
    text-shadow: 0 1px 6px rgba(0,0,0,0.4);
    letter-spacing: 0.2px;
}
/* 静音按钮 */
.hero-mute-btn {
    position: absolute;
    bottom: 12px;
    left: 12px;
    z-index: 5;
    background: rgba(0,0,0,0.45);
    border: 1px solid rgba(255,255,255,0.12);
    border-radius: 50%;
    width: 32px;
    height: 32px;
    color: #fff;
    cursor: pointer;
    opacity: 0.6;
    transition: opacity 0.2s;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0;
}
.hero-mute-btn:hover { opacity: 1; }
.hero-mute-btn .icon-unmuted,
#heroMuteBtn .icon-unmuted { display: none; }
.hero-mute-btn.unmuted .icon-muted,
#heroMuteBtn.unmuted .icon-muted { display: none; }
.hero-mute-btn.unmuted .icon-unmuted,
#heroMuteBtn.unmuted .icon-unmuted { display: block; }

/* Hero 搜索框 */
.hero-search {
    display: flex;
    align-items: center;
    gap: 10px;
    width: 100%;
    padding: 12px 18px;
    border-radius: 28px;
    background: rgba(0,0,0,0.2);
    border: 1px solid rgba(255,255,255,0.08);
    backdrop-filter: blur(16px) saturate(1.3);
    -webkit-backdrop-filter: blur(16px) saturate(1.3);
    transition: border-color 0.2s, box-shadow 0.2s, background 0.2s;
    box-shadow: none;
}
.hero-search:focus-within {
    border-color: rgba(255,255,255,0.25);
    box-shadow: 0 4px 32px rgba(0,0,0,0.2);
    background: rgba(0,0,0,0.4);
}
[data-theme="light"] .hero-search {
    background: rgba(255,255,255,0.65);
    border-color: rgba(0,0,0,0.06);
    box-shadow: 0 4px 24px rgba(0,0,0,0.06);
}
[data-theme="light"] .hero-search:focus-within {
    background: rgba(255,255,255,0.85);
    border-color: rgba(0,0,0,0.1);
    box-shadow: 0 4px 32px rgba(0,0,0,0.08);
}
.hero-search-icon {
    color: rgba(255,255,255,0.6);
    flex-shrink: 0;
}
[data-theme="light"] .hero-search-icon {
    color: var(--text-3);
}
.hero-search-input {
    flex: 1;
    background: none;
    border: none;
    outline: none;
    font-size: 15px;
    color: #fff;
    font-family: var(--font);
    min-width: 0;
}
[data-theme="light"] .hero-search-input {
    color: var(--text-1);
}
.hero-search-input::placeholder {
    color: rgba(255,255,255,0.45);
}
[data-theme="light"] .hero-search-input::placeholder {
    color: var(--text-3);
}
.hero-search-kbd {
    font-family: var(--font);
    font-size: 11px;
    padding: 3px 8px;
    border-radius: 6px;
    border: 1px solid rgba(255,255,255,0.15);
    background: rgba(255,255,255,0.08);
    color: rgba(255,255,255,0.5);
    flex-shrink: 0;
}
[data-theme="light"] .hero-search-kbd {
    border-color: rgba(0,0,0,0.08);
    background: rgba(0,0,0,0.04);
    color: var(--text-3);
}

/* Hero 统计信息 */
.hero-stats-inline {
    font-size: 12px;
    color: rgba(255,255,255,0.5);
    text-align: center;
}
.hero-stats-inline strong {
    color: rgba(255,255,255,0.75);
    font-weight: 600;
}
[data-theme="light"] .hero-stats-inline {
    color: var(--text-3);
}
[data-theme="light"] .hero-stats-inline strong {
    color: var(--text-2);
}

@media (max-width: 640px) {
    .hero { min-height: 220px; border-radius: 0; }
    .hero-overlay { padding: 48px 16px 28px; max-width: 100%; }
    .hero-search { padding: 10px 14px; border-radius: 24px; }
    .hero-search-kbd { display: none; }
    .hero-mute-btn { bottom: 8px; left: 8px; }
}

/* ======================================
   内容区
   ====================================== */
.content {
    flex: 1;
    min-width: 0;
    padding: clamp(24px, 3vw, 32px) clamp(16px, 2.5vw, 28px) clamp(24px, 4vw, 48px);
    background: rgba(8,8,20,0.55);
    backdrop-filter: blur(1px);
    -webkit-backdrop-filter: blur(1px);
    position: relative;
    z-index: 4;
    border-radius: 18px 18px 0 0;
    margin-top: -18px;
    display: flex;
    flex-direction: column;
}
[data-theme="light"] .content {
    background: rgba(246,246,250,0.65);
}

/* ======================================
   分类区块
   ====================================== */
.section {
    margin-bottom: clamp(24px, 3vw, 36px);
}
.section:last-child {
    margin-bottom: clamp(10px, 2vw, 16px);
}

.section-head {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 14px;
    padding: 0 0 12px;
    position: relative;
}
.section-head::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 1px;
    background: linear-gradient(90deg, var(--cat-color, var(--accent)) 0%, transparent 50%);
    opacity: 0.25;
}
.section-tag {
    font-size: 17px;
    width: 34px;
    height: 34px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    border-radius: 10px;
    background: color-mix(in srgb, var(--cat-color, var(--accent)) 12%, var(--surface));
    box-shadow:
        0 0 0 1px color-mix(in srgb, var(--cat-color, var(--accent)) 15%, transparent),
        0 0 16px -2px color-mix(in srgb, var(--cat-color, var(--accent)) 25%, transparent);
}
.section-tag img {
    width: 20px;
    height: 20px;
    object-fit: contain;
    border-radius: 4px;
}
.section-info {
    flex: 1;
    min-width: 0;
}
.section-head h2 {
    font-size: 16px;
    font-weight: 700;
    letter-spacing: -0.2px;
    color: var(--text-1);
    text-shadow: 0 0 20px color-mix(in srgb, var(--cat-color, var(--accent)) 15%, transparent);
}
.section-desc {
    font-size: 12px;
    color: var(--text-3);
    margin-top: 2px;
}
.section-count {
    margin-left: auto;
    flex-shrink: 0;
    font-size: 11px;
    font-weight: 400;
    color: var(--text-3);
}

/* ======================================
   卡片网格
   ====================================== */
.grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    gap: 12px;
}
.grid > .card {
    min-width: 0;
}

/* ======================================
   卡片
   ====================================== */
.card {
    position: relative;
    border-radius: 10px;
    overflow: hidden;
    transition: transform 0.18s ease, box-shadow 0.18s ease;
    cursor: pointer;
    display: block;
    contain: layout style paint;
}
.card:hover {
    will-change: transform;
}
.card::before { display: none; }

.card-body {
    position: relative;
    z-index: 1;
    padding: 12px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: inherit;
    height: 100%;
    display: flex;
    flex-direction: row;
    align-items: center;
    gap: 12px;
    transition: background 0.18s ease, border-color 0.18s ease, box-shadow 0.18s ease;
    box-shadow: 0 1px 2px rgba(0,0,0,0.05);
}
[data-theme="light"] .card-body {
    background: #fff;
    border-color: rgba(0,0,0,0.06);
    box-shadow: 0 1px 3px rgba(0,0,0,0.04);
}

.card:hover .card-body {
    background: var(--bg-card-hover);
    border-color: color-mix(in srgb, var(--cat-color, var(--accent)) 35%, var(--border-hover));
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
}
[data-theme="light"] .card:hover .card-body {
    background: #fff;
    box-shadow: 0 4px 12px rgba(0,0,0,0.06);
}

.card:hover {
    transform: translateY(-2px);
}
[data-theme="light"] .card:hover {
    transform: translateY(-2px);
}

.card-icon {
    font-size: 18px;
    flex-shrink: 0;
    width: 36px;
    height: 36px;
    text-align: center;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: var(--surface);
    border-radius: 50%;
    border: 1px solid var(--border);
    transition: background 0.18s ease, border-color 0.18s ease;
    overflow: hidden;
}
.card:hover .card-icon {
    border-color: var(--border-hover);
}
.card-icon .iconfont {
    font-size: 18px;
    line-height: 1;
}
.card-text {
    flex: 1;
    min-width: 0;
}
.section-tag .iconfont {
    font-size: 18px;
    line-height: 1;
}
.card-name-row {
    display: flex;
    align-items: center;
    gap: 6px;
    min-width: 0;
}
.card-name {
    font-size: 13px;
    font-weight: 600;
    letter-spacing: -0.2px;
    flex: 1;
    min-width: 0;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    color: var(--text-1);
    transition: color 0.18s;
}
.card:hover .card-name {
    color: var(--cat-color, var(--accent));
}

/* 标签 */
.tag {
    font-size: 10px;
    font-weight: 600;
    padding: 2px 8px;
    border-radius: 100px;
    letter-spacing: 0.3px;
    flex-shrink: 0;
    display: inline-block;
    line-height: 1.4;
}
.tag-blue { background: rgba(59,130,246,0.12); color: #60a5fa; }
.tag-purple { background: rgba(139,92,246,0.12); color: #a78bfa; }
.tag-green { background: rgba(34,197,94,0.12); color: #4ade80; }
.tag-red { background: rgba(239,68,68,0.12); color: #f87171; }
.tag-orange { background: rgba(249,115,22,0.12); color: #fb923c; }
.tag-pink { background: rgba(236,72,153,0.12); color: #f472b6; }
.tag-cyan { background: rgba(6,182,212,0.12); color: #22d3ee; }
.tag-yellow { background: rgba(234,179,8,0.12); color: #facc15; }

.card-desc {
    font-size: 11px;
    color: var(--text-3);
    line-height: 1.4;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    margin: 2px 0 0;
}

/* ======================================
   页脚（嵌入内容区底部）
   ====================================== */
.content > .footer-inner {
    margin-top: auto;
    padding: 16px 0 4px;
    text-align: center;
    color: var(--text-3);
    font-size: 12px;
    opacity: 0.45;
}
.content > .footer-inner p {
    margin: 0;
    line-height: 1.4;
}

/* ======================================
   入场动画
   ====================================== */

/* 页面容器：淡入 + 轻微上移 */
.page {
    opacity: 0;
    transform: translateY(6px);
    transition: opacity 0.6s cubic-bezier(0.16, 1, 0.3, 1), transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}
body.content-in .page {
    opacity: 1;
    transform: translateY(0);
}

/* 分层入场 — hero 稍延迟 */
.hero {
    opacity: 0;
    transform: translateY(24px);
}
.section {
    opacity: 0;
    transform: translateY(24px);
}
.hero.in-view {
    opacity: 1;
    transform: translateY(0);
    transition: opacity 0.9s var(--ease) 0.1s, transform 0.9s var(--ease) 0.1s;
}
.section.in-view {
    opacity: 1;
    transform: translateY(0);
    transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
}

.card {
    opacity: 0;
    transform: translateY(12px);
}
.card.in-view {
    animation: cardFadeIn 0.4s ease forwards;
}
@keyframes cardFadeIn {
    from { opacity: 0; transform: translateY(12px); }
    to { opacity: 1; transform: translateY(0); }
}
.card.in-view:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0,0,0,0.08);
}

/* 滚动进度条 */
.scroll-progress {
    position: fixed;
    top: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--accent), var(--accent-2));
    z-index: 9999;
    transition: width 0.05s linear;
    pointer-events: none;
}

/* 右下角悬浮按钮组 */
.bottom-actions {
    position: fixed;
    bottom: 28px;
    right: 28px;
    z-index: 200;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
}
.bottom-fab {
    width: 42px;
    height: 42px;
    border-radius: 50%;
    border: 1px solid var(--border);
    background: rgba(18,18,32,0.85);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    color: var(--text-2);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: opacity 0.3s, transform 0.3s, background 0.2s, border-color 0.2s, box-shadow 0.2s;
    box-shadow: 0 2px 12px rgba(0,0,0,0.2);
}
.bottom-fab:hover {
    background: rgba(18,18,32,0.95);
    border-color: var(--border-hover);
    color: var(--text-1);
    box-shadow: 0 4px 16px rgba(0,0,0,0.3);
}
[data-theme="light"] .bottom-fab {
    background: rgba(255,255,255,0.85);
    box-shadow: 0 2px 12px rgba(0,0,0,0.08);
}
[data-theme="light"] .bottom-fab:hover {
    background: rgba(255,255,255,0.95);
    box-shadow: 0 4px 16px rgba(0,0,0,0.12);
}
/* 回到顶部 —— 默认隐藏，滚动后显示 */
.back-to-top {
    opacity: 0;
    transform: translateY(10px);
    pointer-events: none;
}
.back-to-top.visible {
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
}

/* ======================================
   搜索过滤隐藏
   ====================================== */
.card.filtered-out { display: none; }
.section.filtered-out { display: none; }

/* ======================================
   响应式
   ====================================== */
@media (max-width: 1024px) {
    .grid { grid-template-columns: repeat(auto-fill, minmax(160px, 1fr)); }
}

@media (max-width: 768px) {
    .stage-tiles {
        inset: -40%;
        gap: 14px;
        transform: rotate(-12deg) scale(1.4);
    }
    .stage-tile {
        width: 140px;
        height: 90px;
        border-radius: 10px;
    }
    .stage-row-set { gap: 12px; padding-right: 12px; }

    .content { padding: 16px 12px clamp(32px, 5vw, 48px); border-radius: 14px 14px 0 0; margin-top: -14px; }

    .grid { grid-template-columns: repeat(3, 1fr); gap: 10px; }

    .card-body { padding: 10px; }
    .card-icon { width: 36px; height: 36px; font-size: 18px; }
    .section-head h2 { font-size: 14px; }
    .section-tag { width: 24px; height: 24px; font-size: 14px; }

    /* 侧栏：移动端隐藏，通过按钮呼出 */
    .sidebar {
        position: fixed;
        top: 0;
        left: 0;
        width: 280px;
        height: 100vh;
        padding: 0;
        background: var(--bg);
        border-right: 1px solid var(--border);
        z-index: 200;
        transform: translate3d(-100%, 0, 0);
        transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        box-shadow: 4px 0 24px rgba(0,0,0,0.3);
        backdrop-filter: none;
        -webkit-backdrop-filter: none;
        will-change: transform;
        contain: layout style;
    }
    [data-theme="light"] .sidebar {
        box-shadow: 4px 0 24px rgba(0,0,0,0.08);
    }
    .sidebar.open {
        transform: translate3d(0, 0, 0);
    }
    .sidebar-toggle {
        display: flex;
    }
    .layout {
        flex-direction: column;
    }
}

@media (max-width: 480px) {
    .grid { grid-template-columns: repeat(2, 1fr); gap: 8px; }
    .card-name { font-size: 12px; }
    .card-body { padding: 10px 8px; }
    .card-desc { display: none; }
    .tag { font-size: 9px; padding: 1px 5px; }
    .card-icon { width: 32px; height: 32px; font-size: 16px; }
    .card-icon .iconfont { font-size: 14px; }

    .section-head h2 { font-size: 14px; }
    .section-tag { width: 22px; height: 22px; font-size: 14px; }
    .section-count { font-size: 11px; }

    .floating-actions { top: 10px; right: 10px; gap: 1px; padding: 3px; }
    .fab-btn { width: 30px; height: 30px; }
    .bottom-actions { bottom: 20px; right: 16px; gap: 8px; }
    .bottom-fab { width: 38px; height: 38px; }
    .sidebar-toggle { top: 10px; left: 10px; width: 34px; height: 34px; }

    #particles { display: none; }
}

/* 减弱动画偏好 */
@media (prefers-reduced-motion: reduce) {
    .stage-row { animation-duration: 0s !important; }
    .card.in-view { animation: none; opacity: 1; transform: none; }
    .splash { transition-duration: 0.1s; }
    .page { transition-duration: 0.1s; }
}

/* ======================================
   通用弹窗
   ====================================== */
.nav-modal-overlay {
    position: fixed;
    inset: 0;
    z-index: 9999;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.25s ease-out, visibility 0.25s ease-out;
}
/* 模糊层独立，不参与 opacity 过渡，避免每帧重算 backdrop-filter */
.nav-modal-overlay::before {
    content: '';
    position: absolute;
    inset: 0;
    background: rgba(0,0,0,0.5);
    backdrop-filter: blur(6px);
    -webkit-backdrop-filter: blur(6px);
}
.nav-modal-overlay.active {
    opacity: 1;
    visibility: visible;
}
/* ---- 弹窗卡片 ---- */
.nav-modal {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 20px;
    padding: 0;
    max-width: 340px;
    width: 88vw;
    text-align: center;
    box-shadow: 0 24px 64px rgba(0,0,0,0.45);
    transform: translateY(20px) scale(0.96);
    transition: transform 0.35s cubic-bezier(0.34, 1.56, 0.64, 1), opacity 0.25s ease-out;
    opacity: 0;
    position: relative;
    overflow: hidden;
}
[data-theme="light"] .nav-modal {
    box-shadow: 0 20px 48px rgba(0,0,0,0.12);
}
.nav-modal-overlay.active .nav-modal {
    transform: translateY(0) scale(1);
    opacity: 1;
}

/* ---- 极光光晕层（覆盖整个弹窗） ---- */
.nav-modal-header {
    position: absolute;
    inset: 0;
    pointer-events: none;
    z-index: 0;
    overflow: hidden;
    background:
        radial-gradient(ellipse 160px 120px at 85% 10%, color-mix(in srgb, var(--modal-accent, var(--accent)) 28%, transparent), transparent 70%),
        radial-gradient(ellipse 100px 80px at 15% 25%, color-mix(in srgb, var(--modal-accent, var(--accent)) 15%, transparent), transparent 70%),
        radial-gradient(ellipse 130px 100px at 70% 75%, color-mix(in srgb, var(--modal-accent, var(--accent)) 12%, transparent), transparent 70%),
        radial-gradient(ellipse 80px 60px at 25% 85%, color-mix(in srgb, var(--modal-accent, var(--accent)) 10%, transparent), transparent 70%);
}
/* 斜切光带 —— 大角度穿越弹窗 */
.nav-modal-header::before {
    content: '';
    position: absolute;
    width: 200%;
    height: 60px;
    top: 20%;
    left: -50%;
    background: linear-gradient(
        110deg,
        transparent 30%,
        color-mix(in srgb, var(--modal-accent, var(--accent)) 12%, transparent) 45%,
        color-mix(in srgb, var(--modal-accent, var(--accent)) 6%, transparent) 55%,
        transparent 70%
    );
    transform: rotate(-18deg);
    filter: blur(6px);
}
/* 第二条斜切光带 —— 反向更细 */
.nav-modal-header::after {
    content: '';
    position: absolute;
    width: 200%;
    height: 35px;
    bottom: 25%;
    left: -30%;
    background: linear-gradient(
        -120deg,
        transparent 35%,
        color-mix(in srgb, var(--modal-accent, var(--accent)) 8%, transparent) 48%,
        transparent 65%
    );
    transform: rotate(12deg);
    filter: blur(4px);
}

/* ---- 背景水印 ---- */
.nav-modal-bg-icon {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    pointer-events: none;
    z-index: 0;
    overflow: hidden;
}
.nav-modal-bg-icon img {
    width: 140px !important;
    height: 140px !important;
    object-fit: cover;
    border-radius: 0 !important;
    filter: blur(22px) saturate(1.3);
    transform: scale(1.4) translate(20%, -15%) rotate(-6deg);
    opacity: 0.08;
}
.nav-modal-bg-icon .iconfont {
    font-size: 120px !important;
    filter: blur(14px);
    opacity: 0.06;
    transform: translate(15%, -10%) rotate(-10deg);
}
.nav-modal-bg-icon > span {
    font-size: 100px;
    filter: blur(10px);
    opacity: 0.06;
    transform: translate(15%, -10%) rotate(-6deg);
}
[data-theme="light"] .nav-modal-bg-icon img {
    opacity: 0.10;
}

/* ---- 关闭按钮 ---- */
.nav-modal-close {
    position: absolute;
    top: 12px;
    right: 12px;
    width: 28px;
    height: 28px;
    background: rgba(255,255,255,0.12);
    border: none;
    color: rgba(255,255,255,0.7);
    cursor: pointer;
    padding: 0;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background 0.15s, color 0.15s, transform 0.15s;
    z-index: 3;
}
.nav-modal-close:hover {
    background: rgba(255,255,255,0.2);
    color: #fff;
    transform: rotate(90deg);
}
[data-theme="light"] .nav-modal-close {
    background: rgba(0,0,0,0.06);
    color: var(--text-3);
}
[data-theme="light"] .nav-modal-close:hover {
    background: rgba(0,0,0,0.12);
    color: var(--text-1);
}

/* ---- 图标 ---- */
.nav-modal-icon {
    position: relative;
    z-index: 2;
    font-size: 36px;
    margin-top: 28px;
    margin-bottom: 16px;
    line-height: 1;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}
.nav-modal-icon img {
    width: 56px !important;
    height: 56px !important;
    border-radius: 16px !important;
    object-fit: contain;
    box-shadow: 0 6px 20px rgba(0,0,0,0.25);
}
.nav-modal-icon .iconfont {
    font-size: 48px !important;
    filter: drop-shadow(0 4px 8px rgba(0,0,0,0.2));
}

/* ---- 标题 ---- */
.nav-modal-title {
    position: relative;
    z-index: 1;
    font-size: 18px;
    font-weight: 700;
    color: var(--text-1);
    margin: 0 24px 6px;
    letter-spacing: -0.3px;
}

/* ---- 描述 ---- */
.nav-modal-desc {
    position: relative;
    z-index: 1;
    font-size: 13px;
    color: var(--text-3);
    margin: 0 24px 12px;
    line-height: 1.5;
}

/* ---- URL 胶囊 ---- */
.nav-modal-url {
    position: relative;
    z-index: 1;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: var(--surface, rgba(255,255,255,0.04));
    border: 1px solid var(--border);
    border-radius: 20px;
    padding: 5px 14px 5px 10px;
    font-size: 12px;
    color: var(--text-3);
    margin: 0 auto 20px;
    max-width: calc(100% - 48px);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}
.nav-modal-url svg {
    flex-shrink: 0;
    opacity: 0.5;
}
.nav-modal-url .url-domain {
    color: var(--text-2);
    font-weight: 500;
}

/* ---- 操作按钮 ---- */
.nav-modal-actions {
    position: relative;
    z-index: 1;
    display: flex;
    gap: 10px;
    padding: 0 20px 22px;
}
.nav-modal-btn {
    flex: 1;
    padding: 11px 0;
    border-radius: 12px;
    font-size: 13px;
    font-weight: 600;
    cursor: pointer;
    border: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    transition: transform 0.2s, box-shadow 0.2s, background 0.2s;
}
.nav-modal-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(0,0,0,0.15);
}
.nav-modal-btn:active {
    transform: translateY(0) scale(0.97);
}
.nav-modal-btn.primary {
    background: var(--modal-accent, var(--accent, #7c5cfc));
    color: #fff;
}
.nav-modal-btn.primary:hover {
    box-shadow: 0 6px 20px color-mix(in srgb, var(--modal-accent, var(--accent)) 35%, transparent);
}
.nav-modal-btn.secondary {
    background: var(--surface);
    color: var(--text-2);
    border: 1px solid var(--border);
}
.nav-modal-btn.secondary:hover {
    background: var(--bg-hover);
    color: var(--text-1);
    border-color: var(--border-hover);
}
/* 复制成功提示 */
.nav-modal-toast {
    position: fixed;
    bottom: 80px;
    left: 50%;
    transform: translateX(-50%) translateY(6px);
    background: var(--bg-card);
    border: 1px solid var(--border);
    color: var(--text-1);
    padding: 8px 18px;
    border-radius: 8px;
    font-size: 13px;
    font-weight: 500;
    z-index: 10000;
    opacity: 0;
    transition: opacity 0.2s, transform 0.2s ease-out;
    pointer-events: none;
    box-shadow: 0 8px 24px rgba(0,0,0,0.25);
}
.nav-modal-toast.show {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
}