/* OKX / 欧易 — 潮流玻璃拟态主题 */
:root {
    --primary: #ff5c35;
    --primary-dark: #e84a24;
    --accent: #00e5cc;
    --accent-soft: rgba(0, 229, 204, 0.15);
    --dark: #0b0f1a;
    --dark-2: #141b2d;
    --surface: #ffffff;
    --surface-2: #f0f4fa;
    --text: #0f172a;
    --text-muted: #5c6b82;
    --border: rgba(15, 23, 42, 0.09);
    --card-border: 1px solid var(--border);
    --card-pad: 1.35rem;
    --glass: rgba(255, 255, 255, 0.72);
    --radius: 14px;
    --radius-sm: 10px;
    --radius-lg: 18px;
    --shadow: 0 4px 20px rgba(11, 15, 26, 0.06);
    --shadow-glow: 0 8px 28px rgba(255, 92, 53, 0.18);
    --section-py: 3.25rem;
    --font: "PingFang SC", "Microsoft YaHei", "Segoe UI", sans-serif;
    --max-w: 1160px;
}

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

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

body {
    margin: 0;
    font-family: var(--font);
    color: var(--text);
    line-height: 1.65;
    background: var(--surface-2);
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}

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

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

.zb7f7ccontainer {
    width: 100%;
    max-width: var(--max-w);
    margin: 0 auto;
    padding-left: clamp(1rem, 4vw, 1.5rem);
    padding-right: clamp(1rem, 4vw, 1.5rem);
}

/* ===== Nav ===== */
.zb7f7cnavbar {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: var(--glass);
    backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--border);
}

.zb7f7cnavbar .zb7f7ccontainer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 0.5rem;
    padding-top: 0.65rem;
    padding-bottom: 0.65rem;
}

.zb7f7cnavbar-brand {
    display: flex;
    align-items: center;
    min-width: 0;
    flex: 1;
}

.zb7f7cnavbar-brand img {
    height: 40px;
    width: auto;
    max-width: 100%;
}

.zb7f7cnavbar-toggler {
    display: none;
    border: 1px solid var(--border);
    background: var(--surface);
    border-radius: var(--radius-sm);
    padding: 0.5rem 0.65rem;
    cursor: pointer;
}

.zb7f7cnavbar-toggler span {
    display: block;
    width: 20px;
    height: 2px;
    background: var(--text);
    margin: 4px 0;
    border-radius: 2px;
}

.zb7f7cnavbar-nav {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: flex-end;
    gap: 0.15rem;
    list-style: none;
    margin: 0;
    padding: 0;
}

.zb7f7cnav-link {
    display: block;
    padding: 0.45rem 0.75rem !important;
    color: var(--text) !important;
    font-weight: 600;
    font-size: 0.84rem;
    border-radius: 999px;
    transition: background 0.2s, color 0.2s;
}

.zb7f7cnav-link:hover {
    color: var(--primary) !important;
    background: rgba(255, 92, 53, 0.1);
}

.zb7f7cnav-item.active .zb7f7cnav-link,
.zb7f7cnav-item.on .zb7f7cnav-link {
    color: var(--primary) !important;
    background: rgba(255, 92, 53, 0.12);
}

@media (max-width: 991px) {
    .zb7f7cnavbar .zb7f7ccontainer {
        display: grid;
        grid-template-columns: minmax(0, 1fr) auto;
        grid-template-rows: auto auto;
        column-gap: 0.5rem;
    }

    .zb7f7cnavbar-brand {
        grid-column: 1;
        grid-row: 1;
        max-width: none;
    }

    .zb7f7cnavbar-brand img { height: 36px; }

    .zb7f7cnavbar-toggler {
        display: block;
        grid-column: 2;
        grid-row: 1;
        justify-self: end;
        flex-shrink: 0;
    }

    .zb7f7cnav-collapse {
        display: none;
        grid-column: 1 / -1;
        grid-row: 2;
        width: 100%;
        margin-top: 0.5rem;
        background: var(--surface);
        border: var(--card-border);
        border-radius: var(--radius);
        padding: 0.5rem;
        max-height: min(70vh, calc(100dvh - 4.5rem));
        overflow-y: auto;
        -webkit-overflow-scrolling: touch;
    }

    .zb7f7cnav-collapse.is-open { display: block; }

    .zb7f7cnavbar-nav {
        flex-direction: column;
        align-items: stretch;
    }

    .zb7f7cnav-link {
        min-height: 44px;
        display: flex;
        align-items: center;
        font-size: 0.92rem;
        border-radius: var(--radius-sm);
    }
}

body.zb7f7cnav-open { overflow: hidden; }

/* ===== Buttons ===== */
.zb7f7cbtn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.35rem;
    padding: 0.75rem 1.4rem;
    font-size: 0.92rem;
    font-weight: 700;
    border-radius: 999px;
    border: none;
    cursor: pointer;
    text-decoration: none;
    line-height: 1.3;
    transition: transform 0.2s, box-shadow 0.2s;
    max-width: 100%;
    white-space: normal;
    text-align: center;
}

.zb7f7cbtn-primary {
    background: linear-gradient(135deg, var(--primary), #ff8a65);
    color: #fff !important;
    box-shadow: 0 6px 20px rgba(255, 92, 53, 0.35);
}

.zb7f7cbtn-primary:hover {
    transform: translateY(-2px);
    color: #fff !important;
}

.zb7f7cbtn-accent {
    background: linear-gradient(135deg, var(--accent), #5eead4);
    color: var(--dark) !important;
    box-shadow: 0 6px 20px rgba(0, 229, 204, 0.3);
}

.zb7f7cbtn-outline {
    background: transparent;
    color: var(--primary) !important;
    border: 1px solid var(--primary);
}

.zb7f7cbtn-outline:hover {
    background: var(--primary);
    color: #fff !important;
}

.zb7f7cbtn-glass {
    background: rgba(255, 255, 255, 0.12);
    color: #fff !important;
    border: 1px solid rgba(255, 255, 255, 0.25);
    backdrop-filter: blur(8px);
}

/* ===== Section utils ===== */
.zb7f7csection { padding: var(--section-py) 0; }

.zb7f7ceyebrow {
    display: inline-block;
    font-size: 0.72rem;
    font-weight: 800;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--primary);
    margin-bottom: 0.65rem;
}

.zb7f7csection-head {
    max-width: 640px;
    margin-bottom: 2rem;
}

.zb7f7csection-head--center {
    text-align: center;
    margin-left: auto;
    margin-right: auto;
}

.zb7f7csection-title {
    font-size: clamp(1.6rem, 4vw, 2.35rem);
    font-weight: 800;
    line-height: 1.2;
    margin: 0 0 0.75rem;
    letter-spacing: -0.02em;
}

.zb7f7csection-lead {
    margin: 0;
    color: var(--text-muted);
    font-size: 1.02rem;
}

/* ===== Hero ===== */
.zb7f7chero {
    position: relative;
    padding: clamp(2.5rem, 8vw, 5rem) 0 clamp(3rem, 10vw, 5.5rem);
    background: var(--dark);
    color: #fff;
    overflow: hidden;
}

.zb7f7chero::before {
    content: "";
    position: absolute;
    inset: 0;
    background:
        radial-gradient(ellipse 80% 60% at 10% 90%, rgba(255, 92, 53, 0.45), transparent),
        radial-gradient(ellipse 60% 50% at 90% 10%, rgba(0, 229, 204, 0.25), transparent),
        linear-gradient(180deg, #0b0f1a 0%, #141b2d 100%);
}

.zb7f7chero-grid {
    position: relative;
    z-index: 1;
    display: grid;
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
    gap: clamp(1.5rem, 4vw, 2.5rem);
    align-items: center;
}

.zb7f7chero-chip {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.4rem 1rem;
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: 999px;
    font-size: 0.82rem;
    margin-bottom: 1.25rem;
}

.zb7f7chero-chip i {
    width: 8px;
    height: 8px;
    background: var(--accent);
    border-radius: 50%;
    box-shadow: 0 0 12px var(--accent);
}

.zb7f7chero h1 {
    font-size: clamp(1.85rem, 5vw, 3rem);
    font-weight: 800;
    line-height: 1.15;
    margin: 0 0 1rem;
    letter-spacing: -0.03em;
    overflow-wrap: break-word;
}

.zb7f7chero-lead {
    font-size: 1.02rem;
    opacity: 0.88;
    margin: 0 0 1.75rem;
    max-width: 520px;
    overflow-wrap: break-word;
}

.zb7f7chero-cta {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    margin-bottom: 1.5rem;
}

.zb7f7chero-pills {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.zb7f7chero-pill {
    font-size: 0.78rem;
    padding: 0.35rem 0.75rem;
    background: rgba(0, 229, 204, 0.12);
    border: 1px solid rgba(0, 229, 204, 0.25);
    border-radius: 999px;
    color: rgba(255, 255, 255, 0.9);
}

.zb7f7chero-visual {
    position: relative;
    display: flex;
    justify-content: center;
    max-width: 100%;
    min-width: 0;
    padding: 0 0.25rem 0.5rem;
}

.zb7f7chero-visual img {
    max-width: min(300px, 100%);
    width: 100%;
    border-radius: var(--radius-lg);
    border: 1px solid rgba(255, 255, 255, 0.18);
    box-shadow: var(--shadow-glow), 0 16px 40px rgba(0, 0, 0, 0.35);
}

.zb7f7chero-stat-float {
    position: absolute;
    bottom: 4%;
    right: 0;
    left: auto;
    max-width: min(170px, 46%);
    background: var(--surface);
    color: var(--text);
    padding: 0.7rem 0.95rem;
    border-radius: var(--radius-sm);
    border: var(--card-border);
    box-shadow: var(--shadow);
    font-size: 0.8rem;
    line-height: 1.4;
}

.zb7f7chero-stat-float strong {
    display: block;
    font-size: 1.35rem;
    color: var(--primary);
    font-weight: 800;
}

/* ===== Stats ===== */
.zb7f7cstats {
    background: var(--surface);
    border-top: var(--card-border);
    border-bottom: var(--card-border);
    padding: 1.5rem 0;
}

.zb7f7cstats-row {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 0.85rem;
}

.zb7f7cstat-box {
    text-align: center;
    padding: 0.9rem 0.65rem;
    background: var(--surface-2);
    border-radius: var(--radius-sm);
    border: var(--card-border);
    min-width: 0;
}

.zb7f7cstat-box strong {
    display: block;
    font-size: clamp(1.5rem, 3vw, 2rem);
    font-weight: 800;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1.1;
}

.zb7f7cstat-box span {
    font-size: 0.82rem;
    color: var(--text-muted);
    margin-top: 0.35rem;
    display: block;
    line-height: 1.35;
}

/* ===== Bento features ===== */
.zb7f7cbento {
    display: grid;
    grid-template-columns: repeat(12, minmax(0, 1fr));
    grid-auto-rows: minmax(0, auto);
    gap: 0.85rem;
}

.zb7f7cbento-card {
    background: var(--surface);
    border: var(--card-border);
    border-radius: var(--radius);
    padding: var(--card-pad);
    min-width: 0;
    overflow-wrap: break-word;
    transition: box-shadow 0.25s, transform 0.25s;
}

.zb7f7cbento-card:hover {
    box-shadow: var(--shadow);
    transform: translateY(-2px);
}

/* 每行合计 12 列，避免挤出容器 */
.zb7f7cbento-card--lg { grid-column: span 6; }
.zb7f7cbento-card--md { grid-column: span 6; }
.zb7f7cbento-card--sm { grid-column: span 4; }

.zb7f7cbento-icon {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.35rem;
    background: linear-gradient(135deg, rgba(255, 92, 53, 0.12), var(--accent-soft));
    border-radius: 12px;
    margin-bottom: 0.85rem;
}

.zb7f7cbento-card h3 {
    margin: 0 0 0.5rem;
    font-size: 1.1rem;
}

.zb7f7cbento-card p {
    margin: 0;
    font-size: 0.92rem;
    color: var(--text-muted);
}

/* ===== Brand story ===== */
.zb7f7cbrand {
    background: var(--surface);
}

.zb7f7cbrand-grid {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: clamp(1.25rem, 3vw, 1.75rem);
    align-items: stretch;
}

.zb7f7cbrand-grid > div { min-width: 0; }

.zb7f7cbrand-timeline {
    list-style: none;
    padding: 0;
    margin: 1.5rem 0 0;
}

.zb7f7cbrand-timeline li {
    position: relative;
    padding-left: 1.75rem;
    margin-bottom: 1.25rem;
    color: var(--text-muted);
    font-size: 0.95rem;
}

.zb7f7cbrand-timeline li::before {
    content: "";
    position: absolute;
    left: 0;
    top: 0.45em;
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--primary);
    box-shadow: 0 0 0 3px var(--accent-soft);
}

.zb7f7cbrand-aside {
    background: linear-gradient(145deg, var(--dark), var(--dark-2));
    color: #fff;
    padding: var(--card-pad);
    border-radius: var(--radius);
    border: 1px solid rgba(255, 255, 255, 0.08);
    height: 100%;
}

.zb7f7cbrand-aside h3 {
    margin: 0 0 1rem;
    font-size: 1.2rem;
}

.zb7f7cbrand-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.45rem;
    margin-top: 1.25rem;
}

.zb7f7cbrand-tag {
    font-size: 0.75rem;
    padding: 0.3rem 0.7rem;
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: 999px;
}

/* ===== Register band ===== */
.zb7f7cregister-band {
    background: linear-gradient(90deg, var(--primary), #ff8a65 50%, var(--accent));
    padding: 2.5rem 0;
    color: #fff;
}

.zb7f7cregister-inner {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 1.25rem;
}

.zb7f7cregister-inner h2 {
    margin: 0 0 0.35rem;
    font-size: clamp(1.25rem, 3vw, 1.65rem);
}

.zb7f7cregister-inner p {
    margin: 0;
    opacity: 0.92;
    font-size: 0.95rem;
    max-width: 560px;
}

/* ===== Download ===== */
.zb7f7cdownload-wrap {
    background: var(--surface-2);
}

.zb7f7cdl-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 1.25rem;
}

.zb7f7cdl-card {
    background: var(--surface);
    border-radius: var(--radius);
    border: var(--card-border);
    padding: var(--card-pad);
    display: flex;
    flex-direction: column;
    min-width: 0;
    overflow-wrap: break-word;
}

.zb7f7cdl-card--hot {
    border: 2px solid var(--primary);
    box-shadow: var(--shadow);
}

.zb7f7cdl-badge {
    display: inline-block;
    font-size: 0.7rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--primary);
    margin-bottom: 0.75rem;
}

.zb7f7cdl-icon {
    width: 52px;
    height: 52px;
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.4rem;
    margin-bottom: 1rem;
}

.zb7f7cdl-icon--android { background: linear-gradient(135deg, #3ddc84, #1b8f4e); }
.zb7f7cdl-icon--ios { background: linear-gradient(135deg, #5ac8fa, #007aff); }
.zb7f7cdl-icon--win { background: linear-gradient(135deg, #60a5fa, #2563eb); }

.zb7f7cdl-card h3 { margin: 0 0 0.25rem; font-size: 1.15rem; }
.zb7f7cdl-meta { font-size: 0.85rem; color: var(--text-muted); margin-bottom: 1rem; }

.zb7f7cdl-list {
    list-style: none;
    padding: 0;
    margin: 0 0 1.25rem;
    flex: 1;
}

.zb7f7cdl-list li {
    font-size: 0.88rem;
    color: var(--text-muted);
    padding: 0.35rem 0 0.35rem 1.25rem;
    position: relative;
}

.zb7f7cdl-list li::before {
    content: "→";
    position: absolute;
    left: 0;
    color: var(--accent);
    font-weight: 700;
}

.zb7f7cdl-card .zb7f7cbtn { width: 100%; }

.zb7f7cdl-steps {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 0.85rem;
    margin-top: 2rem;
}

.zb7f7cdl-step {
    text-align: center;
    padding: 0.9rem 0.65rem;
    background: var(--surface);
    border-radius: var(--radius-sm);
    border: 1px dashed var(--border);
    font-size: 0.86rem;
    min-width: 0;
}

.zb7f7cdl-step em {
    display: block;
    font-style: normal;
    font-weight: 800;
    font-size: 1.25rem;
    color: var(--primary);
    margin-bottom: 0.35rem;
}

/* ===== Security ===== */
.zb7f7csecurity {
    background: var(--dark);
    color: #fff;
}

.zb7f7csecurity .zb7f7ceyebrow { color: var(--accent); }
.zb7f7csecurity .zb7f7csection-lead { color: rgba(255, 255, 255, 0.7); }

.zb7f7csec-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1rem;
}

.zb7f7csec-card {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: var(--radius);
    padding: var(--card-pad);
    min-width: 0;
    overflow-wrap: break-word;
}

.zb7f7csec-card h3 {
    margin: 0 0 0.65rem;
    font-size: 1.05rem;
}

.zb7f7csec-card ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.zb7f7csec-card li {
    font-size: 0.88rem;
    color: rgba(255, 255, 255, 0.72);
    margin-bottom: 0.4rem;
    padding-left: 1rem;
    position: relative;
}

.zb7f7csec-card li::before {
    content: "·";
    position: absolute;
    left: 0;
    color: var(--accent);
}

.zb7f7ccerts {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    margin-top: 2rem;
    justify-content: center;
}

.zb7f7ccert-pill {
    padding: 0.65rem 1.25rem;
    background: rgba(0, 229, 204, 0.1);
    border: 1px solid rgba(0, 229, 204, 0.3);
    border-radius: 999px;
    font-size: 0.85rem;
    font-weight: 600;
}

/* ===== FAQ ===== */
.zb7f7cfaq-wrap { background: var(--surface); }

.zb7f7cfaq-list {
    max-width: 800px;
    margin: 0 auto;
}

.zb7f7cfaq-item {
    border: var(--card-border);
    border-radius: var(--radius-sm);
    margin-bottom: 0.6rem;
    overflow: hidden;
    background: var(--surface-2);
}

.zb7f7cfaq-item summary {
    padding: 0.95rem 1.1rem;
    font-weight: 700;
    cursor: pointer;
    list-style: none;
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 0.75rem;
    font-size: 0.93rem;
    line-height: 1.45;
    word-break: break-word;
}

.zb7f7cfaq-item summary::-webkit-details-marker { display: none; }

.zb7f7cfaq-item summary::after {
    content: "+";
    color: var(--primary);
    font-size: 1.2rem;
    flex-shrink: 0;
    line-height: 1;
    margin-top: 0.1rem;
}

.zb7f7cfaq-item[open] summary::after { content: "−"; }

.zb7f7cfaq-body {
    padding: 0 1.15rem 1rem;
    color: var(--text-muted);
    font-size: 0.92rem;
    border-top: 1px solid var(--border);
    line-height: 1.7;
}

/* ===== Articles ===== */
.zb7f7cnews-head {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    align-items: flex-end;
    gap: 1rem;
    margin-bottom: 2rem;
}

.zb7f7cnews-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 1.25rem;
}

.zb7f7cnews-card {
    background: var(--surface);
    border-radius: var(--radius);
    overflow: hidden;
    border: var(--card-border);
    min-width: 0;
    transition: transform 0.2s, box-shadow 0.2s;
}

.zb7f7cnews-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow);
}

.zb7f7cthumb-home {
    width: 100%;
    height: 160px;
    object-fit: cover;
}

.zb7f7cnews-body {
    padding: 1rem 1.15rem 1.15rem;
}

.zb7f7cnews-meta {
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-bottom: 0.4rem;
}

.zb7f7cnews-card h3 {
    margin: 0;
    font-size: 0.98rem;
    line-height: 1.4;
}

.zb7f7cnews-card h3 a {
    color: var(--text);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    word-break: break-word;
}

.zb7f7cnews-body { min-width: 0; }

.zb7f7cnews-card h3 a:hover { color: var(--primary); }

/* ===== Footer ===== */
.zb7f7cfooter {
    background: var(--dark);
    color: rgba(255, 255, 255, 0.7);
    padding: 3rem 0 1.25rem;
}

.zb7f7cfooter-cols {
    display: grid;
    grid-template-columns: 1.5fr repeat(3, 1fr);
    gap: 2rem;
    margin-bottom: 2rem;
}

.zb7f7cfooter h5 {
    color: #fff;
    margin: 0 0 0.85rem;
    font-size: 0.95rem;
}

.zb7f7cfooter ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.zb7f7cfooter li { margin-bottom: 0.45rem; }

.zb7f7cfooter a {
    color: rgba(255, 255, 255, 0.65);
    font-size: 0.88rem;
}

.zb7f7cfooter a:hover { color: var(--accent); }

.zb7f7cfriend-links {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem 1rem;
}

.zb7f7cfooter-bar {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 1.25rem;
    text-align: center;
    font-size: 0.85rem;
}

/* ===== Inner pages ===== */
body.zb7f7cinner {
    background: linear-gradient(180deg, #e8eef8 0%, var(--surface-2) 120px);
}

.zb7f7cpage-main { padding: 2rem 0 3rem; }

.zb7f7cpage-header {
    margin-bottom: 1.5rem;
    padding: 1.5rem;
    background: var(--surface);
    border-radius: var(--radius);
    border: var(--card-border);
    border-left: 3px solid var(--primary);
}

.zb7f7cpage-header h1 {
    margin: 0 0 0.5rem;
    font-size: clamp(1.35rem, 4vw, 1.75rem);
}

.zb7f7cpage-header p {
    margin: 0;
    color: var(--text-muted);
}

.zb7f7cpage-layout {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 300px;
    gap: 1.5rem;
    align-items: start;
}

.zb7f7ccard {
    background: var(--surface);
    border: var(--card-border);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    overflow: hidden;
}

.zb7f7ccard-body { padding: 1.35rem; }

.zb7f7csidebar-card { margin-bottom: 1rem; }

.zb7f7csidebar-card h3 {
    margin: 0 0 0.85rem;
    font-size: 1rem;
    color: var(--primary);
}

.zb7f7csidebar-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.zb7f7csidebar-list li { margin-bottom: 0.45rem; }
.zb7f7csidebar-list a { color: var(--text); font-size: 0.9rem; }
.zb7f7csidebar-list a:hover { color: var(--primary); }

.zb7f7clist-item {
    display: grid;
    grid-template-columns: 100px minmax(0, 1fr);
    gap: 1rem;
    padding-bottom: 1rem;
    margin-bottom: 1rem;
    border-bottom: 1px solid var(--border);
}

.zb7f7clist-item:last-child {
    border-bottom: none;
    margin-bottom: 0;
    padding-bottom: 0;
}

.zb7f7clist-item h2 {
    margin: 0 0 0.35rem;
    font-size: 1.02rem;
}

.zb7f7clist-item h2 a { color: var(--text); font-weight: 700; }
.zb7f7clist-meta { font-size: 0.78rem; color: var(--text-muted); margin-bottom: 0.35rem; }

.zb7f7cthumb-list,
.zb7f7cthumb-related {
    width: 100%;
    height: 84px;
    object-fit: cover;
    border-radius: var(--radius-sm);
}

.zb7f7cthumb-side {
    width: 72px;
    height: 54px;
    object-fit: cover;
    border-radius: var(--radius-sm);
    flex-shrink: 0;
}

.zb7f7cthumb-cover {
    width: 100%;
    max-height: 320px;
    object-fit: cover;
    border-radius: var(--radius);
}

.zb7f7chot-item {
    display: flex;
    gap: 0.65rem;
    margin-bottom: 0.85rem;
}

.zb7f7chot-item > a:last-child {
    flex: 1;
    min-width: 0;
    font-size: 0.88rem;
    line-height: 1.45;
    color: var(--text);
}

.zb7f7carticle-content { line-height: 1.85; }
.zb7f7carticle-content img { max-width: 100%; border-radius: var(--radius-sm); }

.zb7f7cmeta-tags {
    list-style: none;
    padding: 0;
    margin: 1rem 0 0;
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.zb7f7ctagitem a {
    display: inline-block;
    padding: 0.25rem 0.65rem;
    background: rgba(255, 92, 53, 0.1);
    border-radius: 999px;
    font-size: 0.82rem;
    color: var(--primary);
}

.zb7f7cprenext { display: flex; flex-direction: column; gap: 0.5rem; font-size: 0.9rem; }

.pagebar .pagelist,
.zzpages .pagelist {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    list-style: none;
    padding: 0;
    margin: 1.25rem 0 0;
}

.listbox .e2 { list-style: none; padding: 0; margin: 0; }

.zb7f7cmb-0 { margin-bottom: 0; }

/* ===== Responsive ===== */
@media (max-width: 991px) {
    .zb7f7chero-grid {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 1.5rem;
    }

    .zb7f7chero-chip {
        max-width: 100%;
        justify-content: center;
        font-size: 0.78rem;
        line-height: 1.4;
        flex-wrap: wrap;
    }

    .zb7f7chero-lead {
        margin-left: auto;
        margin-right: auto;
        max-width: 100%;
    }

    .zb7f7chero-cta,
    .zb7f7chero-pills { justify-content: center; }

    .zb7f7chero-visual {
        order: -1;
        padding-bottom: 0;
    }

    .zb7f7chero-visual img {
        max-width: min(260px, 78vw);
    }

    .zb7f7chero-stat-float { display: none; }

    .zb7f7cbento-card--lg,
    .zb7f7cbento-card--md { grid-column: span 12; }
    .zb7f7cbento-card--sm { grid-column: span 6; }

    .zb7f7cbrand-grid {
        grid-template-columns: 1fr;
        gap: 1.25rem;
    }

    .zb7f7cbrand-grid .zb7f7csection-head,
    .zb7f7cbrand-grid .zb7f7ceyebrow,
    .zb7f7cbrand-grid .zb7f7csection-title,
    .zb7f7cbrand-grid .zb7f7csection-lead {
        text-align: center;
    }

    .zb7f7cbrand-tags { justify-content: center; }

    .zb7f7cdl-grid { grid-template-columns: 1fr; }
    .zb7f7cdl-steps { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .zb7f7cnews-grid { grid-template-columns: 1fr; }
    .zb7f7cfooter-cols { grid-template-columns: 1fr 1fr; }
    .zb7f7cpage-layout { grid-template-columns: 1fr; }
    .zb7f7cregister-inner {
        flex-direction: column;
        text-align: center;
    }

    .zb7f7cregister-inner .zb7f7cbtn {
        width: 100%;
        max-width: 320px;
    }
}

@media (max-width: 767px) {
    :root { --section-py: 2.75rem; }

    .zb7f7csection-title { font-size: clamp(1.45rem, 5vw, 1.85rem); }

    .zb7f7cstats {
        padding: 1.25rem 0;
    }

    .zb7f7cstats-row {
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: 0.65rem;
    }

    .zb7f7cstat-box {
        padding: 0.75rem 0.45rem;
    }

    .zb7f7cstat-box strong {
        font-size: clamp(1.2rem, 4.5vw, 1.55rem);
    }

    .zb7f7cstat-box span {
        font-size: 0.76rem;
    }

    .zb7f7cbento-card--lg,
    .zb7f7cbento-card--md,
    .zb7f7cbento-card--sm { grid-column: span 12; }

    .zb7f7csec-grid { grid-template-columns: 1fr; }

    .zb7f7ccerts {
        gap: 0.5rem;
    }

    .zb7f7ccert-pill {
        font-size: 0.8rem;
        padding: 0.55rem 1rem;
    }

    .zb7f7cregister-band {
        padding: 2rem 0;
    }

    .zb7f7cnews-head {
        flex-direction: column;
        align-items: stretch;
        text-align: center;
        margin-bottom: 1.5rem;
    }

    .zb7f7cnews-head .zb7f7csection-head {
        margin-left: auto;
        margin-right: auto;
    }

    .zb7f7cnews-head .zb7f7cbtn { width: 100%; }

    .zb7f7cnews-card {
        display: grid;
        grid-template-columns: 108px minmax(0, 1fr);
        align-items: stretch;
    }

    .zb7f7cnews-card > a {
        grid-row: 1 / span 2;
        min-height: 0;
    }

    .zb7f7cthumb-home {
        height: 100%;
        min-height: 86px;
    }

    .zb7f7cnews-body {
        display: flex;
        flex-direction: column;
        justify-content: center;
        min-width: 0;
    }

    .zb7f7cpage-main {
        padding: 1.5rem 0 2.5rem;
    }

    .zb7f7cpage-header {
        padding: 1.15rem;
    }

    .zb7f7cpage-header h1 {
        font-size: 1.35rem;
    }

    .zb7f7ccard-body {
        padding: 1.15rem;
    }

    .zb7f7clist-item {
        grid-template-columns: 88px minmax(0, 1fr);
        gap: 0.75rem;
    }

    .zb7f7clist-item h2 {
        font-size: 0.98rem;
        line-height: 1.35;
    }

    .zb7f7carticle-meta,
    .zb7f7ccard-body > header .zb7f7clist-meta {
        display: flex;
        flex-wrap: wrap;
        gap: 0.35rem 0.75rem;
    }

    .zb7f7carticle-meta span,
    .zb7f7ccard-body > header .zb7f7clist-meta span {
        margin-right: 0 !important;
    }
}

@media (max-width: 575px) {
    html { font-size: 15px; }

    body {
        padding-left: env(safe-area-inset-left);
        padding-right: env(safe-area-inset-right);
    }

    .zb7f7ccontainer {
        padding-left: max(0.9rem, env(safe-area-inset-left));
        padding-right: max(0.9rem, env(safe-area-inset-right));
    }

    :root { --card-pad: 1.1rem; --section-py: 2.35rem; }

    .zb7f7csection-head { margin-bottom: 1.35rem; }

    .zb7f7chero {
        padding-top: 2rem;
        padding-bottom: 2.5rem;
    }

    .zb7f7chero h1 {
        font-size: clamp(1.5rem, 6.5vw, 1.9rem);
    }

    .zb7f7chero-lead {
        font-size: 0.94rem;
    }

    .zb7f7chero-cta {
        flex-direction: column;
        width: 100%;
        max-width: 100%;
        margin-left: auto;
        margin-right: auto;
    }

    .zb7f7chero-cta .zb7f7cbtn {
        width: 100%;
        min-height: 46px;
    }

    .zb7f7chero-pills {
        flex-direction: column;
        align-items: stretch;
        width: 100%;
        max-width: 320px;
        margin: 0 auto;
    }

    .zb7f7chero-pill {
        text-align: center;
        width: 100%;
    }

    .zb7f7cbtn {
        padding: 0.7rem 1rem;
        font-size: 0.88rem;
    }

    .zb7f7cbento-card--sm { grid-column: span 12; }

    .zb7f7cbento-card:hover,
    .zb7f7cnews-card:hover { transform: none; }

    .zb7f7cdl-steps { grid-template-columns: 1fr; }

    .zb7f7cregister-inner .zb7f7cbtn {
        max-width: 100%;
    }

    .zb7f7cnews-card {
        grid-template-columns: 1fr;
    }

    .zb7f7cnews-card > a {
        grid-row: auto;
    }

    .zb7f7cthumb-home {
        height: 150px;
        min-height: 0;
    }

    .zb7f7cfooter {
        padding: 2.25rem 0 1rem;
    }

    .zb7f7cfooter-cols {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 1.35rem;
    }

    .zb7f7cfooter-cols > div:first-child a {
        display: inline-flex;
        justify-content: center;
    }

    .zb7f7cfriend-links {
        justify-content: center;
    }

    .zb7f7cfooter-bar {
        font-size: 0.8rem;
        line-height: 1.75;
        padding-left: 0.25rem;
        padding-right: 0.25rem;
    }

    .zb7f7cfooter-bar a {
        display: inline-block;
        margin: 0.12rem 0.2rem;
    }

    .zb7f7clist-item { grid-template-columns: 1fr; }

    .zb7f7clist-item > a:first-child {
        display: block;
    }

    .zb7f7cthumb-list,
    .zb7f7cthumb-related {
        height: 155px;
        width: 100%;
    }

    .zb7f7chot-item {
        flex-direction: column;
        align-items: stretch;
    }

    .zb7f7chot-item > a:first-child {
        width: 100%;
    }

    .zb7f7cthumb-side {
        width: 100%;
        height: 115px;
    }

    .zb7f7cthumb-cover {
        max-height: 200px;
    }
}

@media (max-width: 380px) {
    .zb7f7cstat-box strong {
        font-size: 1.15rem;
    }

    .zb7f7cnav-link {
        font-size: 0.88rem !important;
        padding: 0.65rem 0.7rem !important;
    }
}

/* 触控与可访问性 */
.zb7f7cnavbar-toggler,
.zb7f7cbtn,
.zb7f7cnav-link,
.zb7f7cfaq-item summary {
    -webkit-tap-highlight-color: transparent;
}

.zb7f7cdl-list li {
    overflow-wrap: break-word;
}

.zb7f7cregister-inner .zb7f7cbtn {
    flex-shrink: 0;
    max-width: 100%;
}