/* 欧易下载官网 — 潮流深色主题 · 单一样式表 */
:root {
    --bg: #08080c;
    --bg-soft: #0f0f14;
    --surface: #14141c;
    --surface-hover: #1c1c28;
    --border: rgba(255, 255, 255, 0.09);
    --border-strong: rgba(255, 255, 255, 0.14);
    --text: #f4f4f5;
    --text-muted: #a1a1aa;
    --primary: #bef264;
    --primary-dark: #84cc16;
    --accent: #22d3ee;
    --accent-soft: rgba(34, 211, 238, 0.12);
    --warm: #fb923c;
    --gradient-hero: linear-gradient(145deg, #08080c 0%, #12121f 40%, #0c1929 100%);
    --gradient-brand: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
    --shadow: 0 8px 32px rgba(0, 0, 0, 0.45);
    --shadow-glow: 0 0 40px rgba(190, 246, 100, 0.12);
    --radius: 14px;
    --radius-sm: 10px;
    --radius-lg: 20px;
    --container: 1160px;
    --nav-h: 64px;
    --gap: 1.15rem;
    --card-pad: 1.25rem;
    --ease: cubic-bezier(0.4, 0, 0.2, 1);
}

/* 内页浅色阅读区 */
.page-inner {
    --page-bg: #f4f4f5;
    --page-surface: #ffffff;
    --page-text: #18181b;
    --page-muted: #52525b;
    --page-border: #e4e4e7;
    --page-accent: #059669;
    --page-accent-soft: #d1fae5;
}

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

html { scroll-behavior: smooth; font-size: 16px; }

body {
    margin: 0;
    font-family: "PingFang SC", "Microsoft YaHei", "Segoe UI", system-ui, sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.65;
    overflow-x: hidden;
}

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

a { color: var(--accent); text-decoration: none; transition: color 0.2s var(--ease); }
a:hover { color: var(--primary); }

.container {
    width: 100%;
    max-width: var(--container);
    margin: 0 auto;
    padding: 0 1rem;
}

@media (min-width: 768px) { .container { padding: 0 1.5rem; } }

.grid { display: grid; gap: var(--gap); }
.grid-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.flex { display: flex; }
.flex-wrap { flex-wrap: wrap; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.gap-2 { gap: 0.75rem; }
.text-center { text-align: center; }
.mb-0 { margin-bottom: 0; }

.grid > *,
.bento > *,
.download-grid > *,
.article-grid > *,
.trust-grid > *,
.timeline > *,
.product-row > *,
.badge-row > *,
.channel-split > *,
.page-layout > *,
.hero-inner > *,
.footer-cols > * { min-width: 0; }

/* —— 导航 —— */
.site-nav {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: rgba(8, 8, 12, 0.85);
    backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--border);
}

.site-nav .container {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.75rem;
    min-height: var(--nav-h);
}

.nav-brand { flex-shrink: 0; }
.nav-brand img { height: 36px; width: auto; max-width: 130px; object-fit: contain; }

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 0.55rem;
    cursor: pointer;
    min-width: 44px;
    min-height: 44px;
    align-items: center;
    justify-content: center;
}

.nav-toggle span {
    display: block;
    width: 20px;
    height: 2px;
    background: var(--text);
    border-radius: 2px;
}

.nav-menu {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    justify-content: flex-end;
    gap: 0.15rem;
    list-style: none;
    margin: 0;
    padding: 0;
    flex: 1;
    min-width: 0;
}

.nav-menu a {
    display: block;
    padding: 0.45rem 0.7rem;
    color: var(--text-muted);
    font-size: 0.8125rem;
    font-weight: 500;
    border-radius: 999px;
    transition: all 0.2s var(--ease);
}

.nav-menu a:hover,
.nav-menu li.on a {
    color: var(--bg);
    background: var(--gradient-brand);
}

/* —— 按钮 —— */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.4rem;
    padding: 0.7rem 1.35rem;
    font-size: 0.9rem;
    font-weight: 600;
    border-radius: 999px;
    border: none;
    cursor: pointer;
    transition: transform 0.2s var(--ease), box-shadow 0.2s var(--ease);
    text-align: center;
    line-height: 1.35;
}

.btn-primary {
    background: var(--gradient-brand);
    color: #0a0a0a;
    box-shadow: var(--shadow-glow);
}

.btn-primary:hover {
    color: #0a0a0a;
    transform: translateY(-2px);
    box-shadow: 0 0 50px rgba(190, 246, 100, 0.25);
}

.btn-ghost {
    background: transparent;
    color: var(--text);
    border: 1px solid var(--border-strong);
}

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

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

.btn-outline:hover { background: rgba(190, 246, 100, 0.1); color: var(--primary); }

.btn-lg { padding: 0.85rem 1.6rem; font-size: 0.95rem; }
.btn-sm { padding: 0.4rem 1rem; font-size: 0.8125rem; }
.btn-block { width: 100%; max-width: 100%; }

.dl-panel .btn,
.hero-cta .btn { max-width: 100%; }

/* —— Hero —— */
.hero {
    position: relative;
    padding: 3rem 0 4rem;
    background: var(--gradient-hero);
    overflow: hidden;
}

.hero::before {
    content: "";
    position: absolute;
    width: 520px;
    height: 520px;
    top: -180px;
    right: -120px;
    background: radial-gradient(circle, rgba(34, 211, 238, 0.15) 0%, transparent 70%);
    pointer-events: none;
}

.hero::after {
    content: "";
    position: absolute;
    width: 400px;
    height: 400px;
    bottom: -100px;
    left: -80px;
    background: radial-gradient(circle, rgba(190, 246, 100, 0.08) 0%, transparent 70%);
    pointer-events: none;
}

.hero-inner {
    position: relative;
    display: grid;
    grid-template-columns: 1.05fr 0.95fr;
    gap: 2rem;
    align-items: center;
}

.hero-tag {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    max-width: 100%;
    flex-wrap: wrap;
    padding: 0.35rem 0.9rem;
    background: var(--accent-soft);
    border: 1px solid rgba(34, 211, 238, 0.25);
    border-radius: 999px;
    font-size: 0.75rem;
    color: var(--accent);
    margin-bottom: 1rem;
    letter-spacing: 0.04em;
}

.hero-tag::before {
    content: "";
    width: 6px;
    height: 6px;
    background: var(--accent);
    border-radius: 50%;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.4; }
}

.hero h1 {
    font-size: clamp(1.85rem, 4.5vw, 3rem);
    font-weight: 800;
    line-height: 1.15;
    margin: 0 0 1rem;
    letter-spacing: -0.03em;
}

.hero h1 span {
    background: var(--gradient-brand);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.hero-lead {
    color: var(--text-muted);
    font-size: 0.98rem;
    margin: 0 0 1.35rem;
    max-width: 540px;
    line-height: 1.75;
    word-break: break-word;
}

.hero-cta {
    display: flex;
    flex-wrap: wrap;
    gap: 0.6rem;
}

.hero-cta .btn {
    white-space: normal;
    line-height: 1.35;
    flex: 1 1 auto;
    min-width: min(100%, 9.5rem);
}

.hero-card {
    position: relative;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: var(--card-pad);
    box-shadow: var(--shadow);
    overflow: hidden;
    max-width: 100%;
}

.hero-card img {
    width: 100%;
    max-width: min(280px, 100%);
    margin: 0 auto;
    border-radius: var(--radius);
}

.hero-card-badges {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-top: 1rem;
    justify-content: center;
}

.hero-mini {
    font-size: 0.7rem;
    padding: 0.3rem 0.65rem;
    background: var(--bg-soft);
    border: 1px solid var(--border);
    border-radius: 999px;
    color: var(--text-muted);
}

/* —— 区块通用 —— */
.section {
    padding: 3.5rem 0;
}

@media (min-width: 768px) {
    .section { padding: 4rem 0; }
}

.section-dark { background: var(--bg-soft); }
.section-surface { background: var(--surface); }

.section-head {
    margin-bottom: 2rem;
}

.section-head.center { text-align: center; }

.section-label {
    display: inline-block;
    font-size: 0.7rem;
    font-weight: 700;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--accent);
    margin-bottom: 0.5rem;
}

.section-title {
    font-size: clamp(1.4rem, 3vw, 2rem);
    font-weight: 800;
    margin: 0 0 0.65rem;
    letter-spacing: -0.02em;
}

.section-desc {
    color: var(--text-muted);
    font-size: 0.95rem;
    max-width: 620px;
    margin: 0;
    line-height: 1.7;
}

.section-head.center .section-desc { margin: 0 auto; }

/* —— 生态规模 stats —— */
.stats-band {
    padding: 1.5rem 0;
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
    background: var(--surface);
}

.stat-cell {
    text-align: center;
    padding: 0.65rem 0.5rem;
}

.stat-value {
    font-size: clamp(1.6rem, 3vw, 2.25rem);
    font-weight: 800;
    background: var(--gradient-brand);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    line-height: 1.1;
}

.stat-name {
    font-size: 0.8125rem;
    color: var(--text-muted);
    margin-top: 0.35rem;
}

/* —— Bento 核心实力 —— */
.bento {
    display: grid;
    grid-template-columns: repeat(12, 1fr);
    gap: var(--gap);
}

.bento-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: var(--card-pad);
    transition: border-color 0.2s, box-shadow 0.2s;
    overflow: hidden;
    box-sizing: border-box;
}

.bento-card:hover {
    border-color: rgba(190, 246, 100, 0.35);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.25);
}

.bento-card.span-4 { grid-column: span 4; }
.bento-card.span-6 { grid-column: span 6; }
.bento-card.span-8 { grid-column: span 8; }
.bento-card.span-12 { grid-column: span 12; }

.bento-icon {
    width: 44px;
    height: 44px;
    border-radius: 12px;
    background: var(--accent-soft);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    margin-bottom: 1rem;
}

.bento-card h3 {
    font-size: 1.05rem;
    margin: 0 0 0.5rem;
    font-weight: 700;
    word-break: break-word;
}

.bento-card p {
    margin: 0;
    font-size: 0.88rem;
    color: var(--text-muted);
    line-height: 1.65;
    word-break: break-word;
}

/* —— 官方通道 —— */
.channel-split {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
    align-items: stretch;
}

@media (min-width: 992px) {
    .channel-split { gap: 2rem; }
}

.prose-block h3 {
    font-size: 1.1rem;
    color: var(--primary);
    margin: 1.5rem 0 0.6rem;
    font-weight: 700;
}

.prose-block h3:first-child { margin-top: 0; }

.prose-block p {
    margin: 0 0 0.85rem;
    color: var(--text-muted);
    font-size: 0.9rem;
    line-height: 1.7;
    word-break: break-word;
}

.check-panel {
    background: linear-gradient(160deg, rgba(34, 211, 238, 0.08), rgba(190, 246, 100, 0.06));
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: var(--card-pad);
    height: 100%;
    box-sizing: border-box;
    overflow: hidden;
}

.check-panel h3 {
    margin: 0 0 1rem;
    font-size: 1rem;
}

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

.check-list li {
    position: relative;
    padding: 0.45rem 0 0.45rem 1.5rem;
    font-size: 0.85rem;
    color: var(--text-muted);
    border-bottom: 1px solid var(--border);
    line-height: 1.5;
    word-break: break-word;
}

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

.check-list li::before {
    content: "✓";
    position: absolute;
    left: 0;
    color: var(--primary);
    font-weight: 700;
}

/* —— 产品矩阵 —— */
.product-row {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: var(--gap);
}

.product-tile {
    padding: var(--card-pad);
    border-radius: var(--radius);
    border: 1px solid var(--border);
    background: var(--bg-soft);
    text-align: center;
    box-sizing: border-box;
    overflow: hidden;
}

.product-tile p { word-break: break-word; }

.product-tile .num {
    font-size: 2rem;
    font-weight: 800;
    color: var(--warm);
    line-height: 1;
}

.product-tile h3 { margin: 0.75rem 0 0.4rem; font-size: 1rem; }
.product-tile p { margin: 0; font-size: 0.85rem; color: var(--text-muted); }

/* —— 开户时间线 —— */
.timeline {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: var(--gap);
    counter-reset: tl;
}

.tl-step {
    position: relative;
    padding: 1.25rem 0.85rem 1rem;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    text-align: center;
    box-sizing: border-box;
    overflow: hidden;
}

.tl-step p { word-break: break-word; }

.tl-step::before {
    counter-increment: tl;
    content: counter(tl, decimal-leading-zero);
    display: block;
    font-size: 1.75rem;
    font-weight: 800;
    color: var(--accent);
    opacity: 0.5;
    margin-bottom: 0.5rem;
}

.tl-step h4 { margin: 0 0 0.4rem; font-size: 0.95rem; }
.tl-step p { margin: 0; font-size: 0.82rem; color: var(--text-muted); line-height: 1.55; }

/* —— 下载 —— */
.download-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: var(--gap);
}

.dl-panel {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: var(--card-pad);
    display: flex;
    flex-direction: column;
    height: 100%;
    overflow: hidden;
    box-sizing: border-box;
}

.dl-panel.featured {
    border-color: rgba(190, 246, 100, 0.45);
    box-shadow: inset 0 0 0 1px rgba(190, 246, 100, 0.15), 0 4px 24px rgba(190, 246, 100, 0.08);
}

.dl-top {
    display: flex;
    align-items: center;
    gap: 0.85rem;
    margin-bottom: 1rem;
    min-width: 0;
}

.dl-top > div:last-child {
    min-width: 0;
    flex: 1;
}

.dl-panel h3,
.dl-panel .sub {
    overflow-wrap: break-word;
}

.dl-logo {
    width: 52px;
    height: 52px;
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    flex-shrink: 0;
}

.dl-logo.ios { background: linear-gradient(135deg, #3b3b3b, #1a1a1a); }
.dl-logo.android { background: linear-gradient(135deg, #22c55e, #15803d); }
.dl-logo.win { background: linear-gradient(135deg, #3b82f6, #1d4ed8); }

.dl-panel h3 { margin: 0; font-size: 1.05rem; }
.dl-panel .sub { font-size: 0.8rem; color: var(--text-muted); margin-top: 0.15rem; }

.dl-list {
    flex: 1;
    list-style: none;
    margin: 0 0 1.25rem;
    padding: 0;
}

.dl-list li {
    font-size: 0.85rem;
    color: var(--text-muted);
    padding: 0.35rem 0;
    padding-left: 1rem;
    position: relative;
}

.dl-list li::before {
    content: "";
    position: absolute;
    left: 0;
    top: 0.65rem;
    width: 5px;
    height: 5px;
    border-radius: 50%;
    background: var(--primary);
}

/* —— 信任保障 —— */
.trust-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: var(--gap);
}

.trust-item {
    padding: var(--card-pad);
    background: var(--bg-soft);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    text-align: center;
    box-sizing: border-box;
    overflow: hidden;
}

.trust-item .icon {
    font-size: 1.75rem;
    margin-bottom: 0.75rem;
}

.trust-item h3 { font-size: 0.95rem; margin: 0 0 0.65rem; }
.trust-item ul { list-style: none; padding: 0; margin: 0; text-align: left; }
.trust-item li {
    font-size: 0.8rem;
    color: var(--text-muted);
    padding: 0.25rem 0;
    word-break: break-word;
}

.badge-row {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: var(--gap);
    margin-top: 2rem;
}

.badge-card {
    padding: var(--card-pad);
    text-align: center;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    background: var(--bg-soft);
    box-sizing: border-box;
}

.badge-card p { word-break: break-word; }

.badge-card h4 { margin: 0.5rem 0 0.25rem; font-size: 0.9rem; }
.badge-card p { margin: 0; font-size: 0.8rem; color: var(--text-muted); }

/* —— FAQ —— */
.faq-wrap { max-width: 760px; margin: 0 auto; }

.faq-block {
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    margin-bottom: 0.65rem;
    background: var(--surface);
    overflow: hidden;
}

.faq-block summary {
    padding: 0.9rem 1rem;
    font-weight: 600;
    font-size: 0.9rem;
    cursor: pointer;
    list-style: none;
    display: flex;
    justify-content: space-between;
    gap: 0.75rem;
    align-items: center;
    line-height: 1.45;
    word-break: break-word;
}

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

.faq-block summary::after {
    content: "+";
    color: var(--primary);
    font-size: 1.2rem;
    flex-shrink: 0;
}

.faq-block[open] summary::after { content: "−"; }

.faq-answer {
    padding: 0 1rem 0.9rem;
    font-size: 0.88rem;
    color: var(--text-muted);
    line-height: 1.7;
    word-break: break-word;
}

/* —— 资讯 —— */
.news-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.article-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: var(--gap);
}

.news-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
    transition: border-color 0.2s;
    display: flex;
    flex-direction: column;
    height: 100%;
    box-sizing: border-box;
}

.news-card:hover { border-color: rgba(34, 211, 238, 0.35); }

.news-card img {
    width: 100%;
    height: 130px;
    object-fit: cover;
}

.news-body {
    padding: 0.85rem 1rem 1rem;
    flex: 1;
}

.news-meta {
    font-size: 0.7rem;
    color: var(--text-muted);
    margin-bottom: 0.35rem;
}

.news-card h3 {
    font-size: 0.875rem;
    margin: 0;
    line-height: 1.45;
    font-weight: 600;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    word-break: break-word;
}

.news-card h3 a { color: var(--text); }
.news-card h3 a:hover { color: var(--primary); }

/* —— CTA —— */
.cta-band {
    padding: 2.5rem 0;
    text-align: center;
    background: linear-gradient(135deg, rgba(190, 246, 100, 0.12), rgba(34, 211, 238, 0.08));
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
}

.cta-band .container { max-width: 560px; }

.cta-band p { word-break: break-word; }

.cta-band h2 { margin: 0 0 0.5rem; font-size: 1.5rem; }
.cta-band p { color: var(--text-muted); margin: 0 0 1.25rem; font-size: 0.95rem; }

/* —— 页脚 —— */
.site-footer {
    padding: 3rem 0 1.5rem;
    background: var(--bg);
    border-top: 1px solid var(--border);
}

.footer-cols {
    display: grid;
    grid-template-columns: 1.8fr 1fr 1fr 1fr;
    gap: 2rem;
    margin-bottom: 2rem;
}

.site-footer h5 {
    color: var(--text);
    font-size: 0.85rem;
    font-weight: 700;
    margin: 0 0 1rem;
    letter-spacing: 0.05em;
}

.site-footer ul { list-style: none; padding: 0; margin: 0; }
.site-footer li { margin-bottom: 0.45rem; }
.site-footer a { color: var(--text-muted); font-size: 0.875rem; }
.site-footer a:hover { color: var(--primary); }

.footer-brand p {
    margin: 1rem 0 0;
    font-size: 0.875rem;
    color: var(--text-muted);
    line-height: 1.65;
}

.friend-links {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem 1rem;
    list-style: none;
    padding: 0;
    margin: 0;
}

.footer-end {
    border-top: 1px solid var(--border);
    padding-top: 1.25rem;
    text-align: center;
    font-size: 0.8rem;
    color: var(--text-muted);
}

.footer-end p {
    margin: 0.3rem 0;
    word-break: break-word;
    line-height: 1.6;
}

.friend-links a { word-break: break-word; }

/* —— 内页 —— */
.page-inner .site-nav {
    background: rgba(255, 255, 255, 0.92);
    border-bottom-color: var(--page-border);
}

.page-inner .nav-menu a { color: var(--page-muted); }
.page-inner .nav-menu a:hover,
.page-inner .nav-menu li.on a {
    color: #fff;
    background: linear-gradient(135deg, var(--page-accent), #0d9488);
}

.page-inner .nav-toggle span { background: var(--page-text); }
.page-inner .nav-toggle {
    background: var(--page-surface);
    border-color: var(--page-border);
}

.page-main {
    padding: 2rem 0 3rem;
    background: var(--page-bg);
    min-height: calc(100vh - var(--nav-h) - 100px);
}

.page-inner .page-title {
    font-size: 1.45rem;
    color: var(--page-text);
    margin: 0 0 0.35rem;
    font-weight: 800;
}

.page-inner .page-desc {
    color: var(--page-muted);
    font-size: 0.9rem;
    margin: 0 0 1.25rem;
}

.page-layout {
    display: grid;
    grid-template-columns: 1fr 300px;
    gap: 1.5rem;
    align-items: start;
}

.page-inner .content-card {
    background: var(--page-surface);
    border: 1px solid var(--page-border);
    border-radius: var(--radius);
    padding: var(--card-pad);
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.04);
    overflow: hidden;
    box-sizing: border-box;
}

.page-inner .sidebar-card {
    background: var(--page-surface);
    border: 1px solid var(--page-border);
    border-radius: var(--radius);
    padding: 1.15rem;
    margin-bottom: var(--gap);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.04);
}

.page-inner .sidebar-card h3 {
    font-size: 0.95rem;
    color: var(--page-text);
    margin: 0 0 0.85rem;
    font-weight: 700;
}

.page-inner .sidebar-card a { color: var(--page-text); }
.page-inner .sidebar-card a:hover { color: var(--page-accent); }

.list-item {
    display: grid;
    grid-template-columns: 110px 1fr;
    gap: 1rem;
    padding-bottom: 1.15rem;
    margin-bottom: 1.15rem;
    border-bottom: 1px solid var(--page-border);
}

.list-item:last-child { border-bottom: none; margin-bottom: 0; padding-bottom: 0; }

.list-item img {
    width: 100%;
    height: 80px;
    object-fit: cover;
    border-radius: var(--radius-sm);
}

.list-item .meta { font-size: 0.75rem; color: var(--page-muted); margin-bottom: 0.3rem; }
.list-item h2 {
    font-size: 1rem;
    margin: 0 0 0.3rem;
    font-weight: 600;
    line-height: 1.35;
    word-break: break-word;
}

.list-item h2 a { color: var(--page-text); }
.list-item p { margin: 0; font-size: 0.875rem; color: var(--page-muted); word-break: break-word; }

.side-hot {
    display: flex;
    gap: 0.65rem;
    margin-bottom: 0.75rem;
    align-items: flex-start;
}

.side-hot img {
    width: 68px;
    height: 52px;
    object-fit: cover;
    border-radius: 8px;
    flex-shrink: 0;
}

.side-hot a { font-size: 0.85rem; line-height: 1.4; color: var(--page-text); }

.article-header h1 {
    font-size: 1.35rem;
    color: var(--page-text);
    margin: 0 0 0.65rem;
    line-height: 1.35;
}

.article-meta {
    font-size: 0.8rem;
    color: var(--page-muted);
    margin-bottom: 1.25rem;
}

.article-cover {
    width: 100%;
    max-height: 280px;
    object-fit: cover;
    border-radius: var(--radius);
    margin-bottom: 1.25rem;
}

.article-body {
    color: var(--page-text);
    line-height: 1.8;
    font-size: 0.95rem;
}

.article-body img, .article-body video, .article-body iframe {
    max-width: 100% !important;
    height: auto !important;
}

.article-body table {
    display: block;
    overflow-x: auto;
    max-width: 100%;
}

.page-inner .tag-list {
    list-style: none;
    padding: 0;
    margin: 1.25rem 0 0;
    display: flex;
    flex-wrap: wrap;
    gap: 0.4rem;
}

.page-inner .tag-list a {
    padding: 0.25rem 0.6rem;
    background: var(--page-accent-soft);
    color: var(--page-accent);
    border-radius: 6px;
    font-size: 0.75rem;
}

.related-item {
    display: grid;
    grid-template-columns: 96px 1fr;
    gap: 0.85rem;
    padding-bottom: 0.85rem;
    margin-bottom: 0.85rem;
    border-bottom: 1px solid var(--page-border);
}

.related-item:last-child { border-bottom: none; margin-bottom: 0; padding-bottom: 0; }
.related-item img { width: 100%; height: 68px; object-fit: cover; border-radius: 8px; }

.prenext-row { display: flex; flex-wrap: wrap; gap: 0.75rem; justify-content: space-between; }

.pagebar .pagelist {
    display: flex;
    flex-wrap: wrap;
    gap: 0.4rem;
    list-style: none;
    padding: 0;
    margin: 1.25rem 0 0;
}

.page-inner .pagebar .pagelist a {
    display: inline-block;
    padding: 0.4rem 0.75rem;
    border: 1px solid var(--page-border);
    border-radius: 8px;
    color: var(--page-text);
    font-size: 0.85rem;
}

.page-inner .pagebar .pagelist a:hover,
.page-inner .pagebar .pagelist .thisclass a {
    background: var(--page-accent);
    border-color: var(--page-accent);
    color: #fff;
}

.page-inner .site-footer {
    background: #18181b;
    border-top: none;
}

.page-inner .site-footer a { color: #a1a1aa; }

/* —— 响应式 —— */
@media (max-width: 1100px) {
    .bento-card.span-4, .bento-card.span-6 { grid-column: span 6; }
    .bento-card.span-8 { grid-column: span 12; }
    .article-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
    .trust-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 900px) {
    .download-grid { grid-template-columns: 1fr; }
    .timeline { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

/* 平板及以下：汉堡导航 */
@media (max-width: 991px) {
    .site-nav .container {
        flex-wrap: nowrap;
    }

    .hero-inner { grid-template-columns: 1fr; text-align: center; }
    .hero-lead { margin-left: auto; margin-right: auto; }
    .hero-cta { justify-content: center; }
    .hero-tag { margin-left: auto; margin-right: auto; }
    .hero-card-badges { justify-content: center; }
    .hero-card { order: -1; max-width: min(360px, 100%); margin: 0 auto; }
    .hero h1 { font-size: clamp(1.65rem, 5vw, 2.25rem); }
    .channel-split { grid-template-columns: 1fr; }
    .page-layout { grid-template-columns: 1fr; }
    .footer-cols { grid-template-columns: 1fr 1fr; }

    .nav-toggle {
        display: flex;
        margin-left: auto;
        flex-shrink: 0;
    }

    .nav-menu {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        width: 100%;
        flex: none;
        flex-direction: column;
        flex-wrap: nowrap;
        align-items: stretch;
        background: var(--surface);
        border-top: 1px solid var(--border);
        border-bottom: 1px solid var(--border);
        padding: 0.35rem 0;
        max-height: min(72vh, 520px);
        overflow-y: auto;
        -webkit-overflow-scrolling: touch;
        z-index: 1001;
        box-shadow: var(--shadow);
    }

    .page-inner .nav-menu {
        background: var(--page-surface);
        border-color: var(--page-border);
    }

    .nav-menu.is-open { display: flex; }

    .nav-menu li {
        width: 100%;
        border-bottom: 1px solid var(--border);
    }

    .page-inner .nav-menu li {
        border-bottom-color: var(--page-border);
    }

    .nav-menu li:last-child { border-bottom: none; }

    .nav-menu a {
        border-radius: 0;
        padding: 0.9rem 1rem;
        width: 100%;
        white-space: normal;
        font-size: 0.9375rem;
        min-height: 44px;
        display: flex;
        align-items: center;
    }

    .page-inner .nav-menu a:hover,
    .page-inner .nav-menu li.on a {
        color: #fff;
    }

    body.nav-open { overflow: hidden; }
}

@media (max-width: 768px) {
    .section { padding: 2.5rem 0; }
    .hero { padding: 1.75rem 0 2.5rem; }
    .hero::before,
    .hero::after { opacity: 0.6; }

    .download-grid,
    .product-row,
    .badge-row,
    .trust-grid { grid-template-columns: 1fr; }

    .bento-card.span-4,
    .bento-card.span-6,
    .bento-card.span-8,
    .bento-card.span-12,
    .bento-card[class*="span"] { grid-column: span 12; }

    .stats-band { padding: 1.25rem 0; }

    .stats-band .grid-4 {
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: 0.5rem;
    }

    .stat-cell {
        padding: 0.65rem 0.4rem;
        border: 1px solid var(--border);
        border-radius: var(--radius-sm);
    }

    .stat-value { font-size: 1.45rem; }
    .stat-name { font-size: 0.75rem; }

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

    .article-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: 0.75rem;
    }

    .news-card img { height: 108px; }
    .news-body { padding: 0.75rem 0.85rem 0.85rem; }

    .hero-cta {
        flex-direction: column;
        align-items: stretch;
        width: 100%;
    }

    .hero-cta .btn {
        width: 100%;
        min-width: 0;
        min-height: 46px;
    }

    .hero-card { max-width: 100%; padding: 1rem; }

    .cta-band { padding: 2rem 1rem; }
    .cta-band .btn { width: 100%; max-width: 320px; }

    .news-bar { flex-direction: column; align-items: stretch; }
    .news-bar .btn { width: 100%; }

    .section-head { margin-bottom: 1.35rem; }
    .section-title { font-size: 1.28rem; }
    .section-desc { font-size: 0.9rem; }
    .section-label { font-size: 0.65rem; }

    .faq-block summary { font-size: 0.875rem; padding: 0.85rem 0.9rem; }
    .faq-answer { padding: 0 0.9rem 0.85rem; font-size: 0.85rem; }

    .site-footer { padding: 2.25rem 0 1.25rem; }
    .footer-cols { gap: 1.25rem; }

    /* 内页 */
    .page-main { padding: 1.25rem 0 2.25rem; }
    .page-inner .page-title { font-size: 1.2rem; line-height: 1.35; }
    .page-inner .page-desc { font-size: 0.875rem; margin-bottom: 1rem; }
    .page-inner .content-card,
    .page-inner .sidebar-card { padding: 1rem; }

    .list-item { grid-template-columns: 96px 1fr; gap: 0.65rem; }
    .list-item img { height: 76px; }

    .article-header h1 { font-size: 1.15rem; }
    .article-cover { max-height: 200px; }
    .article-meta { display: flex; flex-direction: column; gap: 0.3rem; }
    .article-meta span { display: block; margin-right: 0; }

    .prenext-row { flex-direction: column; }
    .prenext-row > div { width: 100%; }

    .pagebar .pagelist { justify-content: center; }
    .page-inner .pagebar .pagelist a {
        padding: 0.5rem 0.7rem;
        font-size: 0.8125rem;
    }

    .related-item { grid-template-columns: 88px 1fr; }
}

@media (max-width: 640px) {
    .article-grid { grid-template-columns: 1fr; }
    .news-card img { height: 160px; }
}

@media (max-width: 480px) {
    .container { padding: 0 0.875rem; }

    .nav-brand img { height: 32px; }

    .hero h1 { font-size: 1.5rem; }
    .hero-lead { font-size: 0.9rem; }

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

    .list-item {
        grid-template-columns: 1fr;
        gap: 0.6rem;
    }

    .list-item img {
        width: 100%;
        height: 148px;
    }

    .side-hot {
        flex-direction: column;
        align-items: stretch;
    }

    .side-hot img {
        width: 100%;
        height: 112px;
    }

    .related-item {
        grid-template-columns: 72px 1fr;
        gap: 0.6rem;
    }

    .related-item img { height: 56px; }

    .check-panel,
    .prose-block { font-size: 0.9rem; }

    .dl-panel { padding: 1rem; }
    .bento-card { padding: 1rem; }
}

@supports (padding: max(0px)) {
    .container {
        padding-left: max(1rem, env(safe-area-inset-left));
        padding-right: max(1rem, env(safe-area-inset-right));
    }

    .site-footer .container {
        padding-bottom: max(1.25rem, env(safe-area-inset-bottom));
    }
}