:root {
    --brand-blue: #0066ff;
    --brand-blue-dark: #0055d4;
    --brand-black: #000000;
    --brand-orange: #ff8a00;
    --brand-orange-light: #ffb347;
    --text-primary: #333333;
    --text-secondary: #666666;
    --text-muted: #999999;
    --border-color: #e5e5e5;
    --footer-bg: #2b2b2b;
    --footer-bottom: #222222;
    --container: 1200px;
}

* { box-sizing: border-box; }
html {
    scroll-behavior: smooth;
    overflow-x: hidden;
    overflow-x: clip;
    background: var(--footer-bottom);
    min-height: 100%;
}
body {
    margin: 0;
    padding: 0;
    font-family: "Microsoft YaHei", "PingFang SC", "Helvetica Neue", Arial, sans-serif;
    font-size: 14px;
    color: var(--text-primary);
    line-height: 1.6;
    background: #fff;
    overflow-x: hidden;
    overflow-x: clip;
    min-height: 100vh;
    min-height: 100dvh;
    display: flex;
    flex-direction: column;
}
main {
    flex: 1 0 auto;
    width: 100%;
    display: flex;
    flex-direction: column;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; height: auto; display: block; }
ul { list-style: none; margin: 0; padding: 0; }
.container { width: var(--container); max-width: 94%; margin: 0 auto; }

/* ========== 顶栏 ========== */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    height: 70px;
    overflow: visible;
    transition: background .3s, box-shadow .3s;
}
.site-header--overlay { background: transparent; }
.site-header--overlay .main-nav > a,
.site-header--overlay .nav-dropdown > a,
.site-header--overlay .header-link { color: #fff; }
.site-header--overlay .main-nav a.active::after,
.site-header--overlay .nav-dropdown > a.active::after {
    content: "";
    position: absolute;
    left: 0;
    right: 0;
    bottom: -8px;
    height: 2px;
    background: #fff;
}
.site-header--solid {
    background: #fff;
    box-shadow: 0 1px 8px rgba(0,0,0,.08);
}
.site-header--solid .main-nav a,
.site-header--solid .header-link { color: #333; }
.site-header--solid .main-nav a.active,
.site-header--solid .nav-dropdown > a.active { color: var(--brand-blue); }

.header-inner {
    height: 70px;
    display: flex;
    align-items: center;
    gap: 40px;
    overflow: visible;
}
.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-shrink: 0;
}
.logo-mark { height: 40px; width: auto; max-width: 180px; object-fit: contain; }
.site-header--solid .logo-mark { filter: none; }
.site-header--overlay .logo-mark--default { filter: brightness(0) invert(1); }

.main-nav {
    display: flex;
    align-items: center;
    gap: 36px;
    flex: 1;
}
.main-nav > a,
.nav-dropdown > a {
    position: relative;
    font-size: 15px;
    white-space: nowrap;
}
.main-nav a:hover,
.header-link:hover { opacity: .85; }

.nav-dropdown { position: relative; }
.nav-dropdown::before {
    content: "";
    position: absolute;
    left: -12px;
    right: -12px;
    top: 100%;
    height: 14px;
    z-index: 1000;
}
.nav-dropdown-menu {
    display: none;
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%);
    min-width: 140px;
    padding: 6px 0;
    margin: 0;
    background: #fff;
    box-shadow: 0 4px 20px rgba(0,0,0,.12);
    border-radius: 4px;
    z-index: 1001;
}
.nav-dropdown-menu a {
    display: block;
    padding: 10px 20px;
    color: #333;
    font-size: 14px;
}
.nav-dropdown-menu a:hover { background: #f5f5f5; color: var(--brand-blue); }
.nav-dropdown:hover .nav-dropdown-menu,
.nav-dropdown.is-open .nav-dropdown-menu { display: block; }

.header-actions {
    display: flex;
    align-items: center;
    gap: 28px;
    flex-shrink: 0;
}
.header-link {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 14px;
    white-space: nowrap;
}
.icon {
    display: inline-block;
    width: 16px;
    height: 16px;
    background-size: contain;
    background-repeat: no-repeat;
    background-position: center;
}
.icon-doc { background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23fff' stroke-width='2'%3E%3Cpath d='M14 2H6a2 2 0 0 0-2 2v16a2 2 0 0 0 2 2h12a2 2 0 0 0 2-2V8z'/%3E%3Cpath d='M14 2v6h6M16 13H8M16 17H8M10 9H8'/%3E%3C/svg%3E"); }
.icon-user { background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23fff' stroke-width='2'%3E%3Cpath d='M20 21v-2a4 4 0 0 0-4-4H8a4 4 0 0 0-4 4v2'/%3E%3Ccircle cx='12' cy='7' r='4'/%3E%3C/svg%3E"); }
.site-header--solid .icon-doc { background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23333' stroke-width='2'%3E%3Cpath d='M14 2H6a2 2 0 0 0-2 2v16a2 2 0 0 0 2 2h12a2 2 0 0 0 2-2V8z'/%3E%3Cpath d='M14 2v6h6M16 13H8M16 17H8M10 9H8'/%3E%3C/svg%3E"); }
.site-header--solid .icon-user { background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23333' stroke-width='2'%3E%3Cpath d='M20 21v-2a4 4 0 0 0-4-4H8a4 4 0 0 0-4 4v2'/%3E%3Ccircle cx='12' cy='7' r='4'/%3E%3C/svg%3E"); }

.mobile-menu-btn {
    display: none;
    width: 32px;
    height: 32px;
    border: 0;
    background: transparent;
    cursor: pointer;
    position: relative;
}
.mobile-menu-btn span,
.mobile-menu-btn span::before,
.mobile-menu-btn span::after {
    display: block;
    width: 22px;
    height: 2px;
    background: #fff;
    position: absolute;
    left: 5px;
    transition: .2s;
}
.mobile-menu-btn span { top: 15px; }
.mobile-menu-btn span::before { content: ""; top: -7px; }
.mobile-menu-btn span::after { content: ""; top: 7px; }
.site-header--solid .mobile-menu-btn span,
.site-header--solid .mobile-menu-btn span::before,
.site-header--solid .mobile-menu-btn span::after { background: #333; }

/* ========== 按钮 ========== */
.btn {
    display: inline-block;
    padding: 0 32px;
    height: 44px;
    line-height: 44px;
    border-radius: 22px;
    font-size: 16px;
    font-weight: 500;
    text-align: center;
    border: none;
    cursor: pointer;
    transition: opacity .2s;
}
.btn:hover { opacity: .9; }
.btn-orange {
    background: linear-gradient(90deg, var(--brand-orange), var(--brand-orange-light));
    color: #fff;
    box-shadow: 0 4px 12px rgba(255,138,0,.35);
}
.btn-blue {
    background: var(--brand-blue);
    color: #fff;
}
.btn-outline-blue {
    border: 1px solid var(--brand-blue);
    color: var(--brand-blue);
    background: #fff;
    line-height: 42px;
}
.btn-sm { height: 36px; line-height: 36px; padding: 0 22px; font-size: 14px; border-radius: 18px; }

/* ========== 首页 Banner ========== */
.page-home main,
.page-product main {
    padding-top: 0;
}
.page-inner main { padding-top: 70px; }

.hero-banner {
    position: relative;
    background: #004ecc;
    overflow: hidden;
}
.hero-banner-fx {
    position: absolute;
    inset: 0;
    z-index: 0;
    pointer-events: none;
    overflow: hidden;
}
.hero-banner-fx-canvas {
    display: block;
    width: 100%;
    height: 100%;
}

.hero-slider { position: relative; z-index: 1; }
.hero-slide {
    display: none;
    min-height: 520px;
    background: transparent center/cover no-repeat;
    position: relative;
}
.hero-slide::before {
    content: "";
    position: absolute;
    inset: 0;
    z-index: 0;
    background: linear-gradient(
        90deg,
        rgba(0, 28, 84, 0.88) 0%,
        rgba(0, 45, 120, 0.52) 38%,
        rgba(0, 80, 180, 0.18) 62%,
        rgba(0, 102, 255, 0.04) 100%
    );
}
.hero-slide--has-bg::after {
    content: "";
    position: absolute;
    inset: 0;
    z-index: 0;
    pointer-events: none;
    background:
        linear-gradient(rgba(125, 211, 252, 0.06) 1px, transparent 1px),
        linear-gradient(90deg, rgba(125, 211, 252, 0.06) 1px, transparent 1px);
    background-size: 40px 40px;
    opacity: 0.5;
    animation: hero-tech-grid-pulse 6s ease-in-out infinite;
}
.hero-slide--has-bg::before {
    background: linear-gradient(
        90deg,
        rgba(0, 0, 0, 0.45) 0%,
        rgba(0, 0, 0, 0.18) 45%,
        rgba(0, 0, 0, 0.05) 100%
    );
}
.hero-slide--has-bg {
    background-color: #111;
    background-size: cover;
    background-position: center;
}
.hero-slide-inner { position: relative; z-index: 1; }
.hero-slide.is-active { display: block; }
.hero-slide-inner {
    display: flex;
    align-items: center;
    justify-content: flex-start;
    min-height: 520px;
    gap: 40px;
    padding: 90px 0 70px;
}
.hero-copy { flex: 1; max-width: 560px; color: #fff; }
.hero-copy h1 {
    margin: 0 0 20px;
    font-size: 42px;
    font-weight: 700;
    line-height: 1.35;
    letter-spacing: 1px;
}
.hero-desc {
    margin: 0 0 36px;
    font-size: 18px;
    line-height: 1.8;
    opacity: .95;
}
.hero-btns { display: flex; gap: 16px; flex-wrap: wrap; }
.hero-visual { flex: 0 0 420px; max-width: 42%; overflow: visible; }
.hero-visual img {
    width: 100%;
    max-width: 100%;
    max-height: 360px;
    height: auto;
    object-fit: contain;
}

.hero-visual-tech {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 320px;
}
.hero-tech-scene {
    position: relative;
    width: min(100%, 380px);
    aspect-ratio: 1;
}
.hero-tech-grid {
    position: absolute;
    inset: 0;
    border-radius: 16px;
    background:
        linear-gradient(rgba(125, 211, 252, 0.12) 1px, transparent 1px),
        linear-gradient(90deg, rgba(125, 211, 252, 0.12) 1px, transparent 1px);
    background-size: 24px 24px;
    mask-image: radial-gradient(circle at center, #000 42%, transparent 78%);
    animation: hero-tech-grid-pulse 4s ease-in-out infinite;
}
.hero-tech-orbit {
    position: absolute;
    inset: 0;
    margin: auto;
    border-radius: 50%;
    border: 1px solid rgba(125, 211, 252, 0.35);
}
.hero-tech-orbit-a {
    width: 94%;
    height: 94%;
    border-style: dashed;
    animation: hero-tech-spin 22s linear infinite;
}
.hero-tech-orbit-b {
    width: 118%;
    height: 118%;
    border-color: rgba(255, 255, 255, 0.12);
    animation: hero-tech-spin 32s linear infinite reverse;
}
.hero-tech-network {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
}
.hero-tech-link {
    stroke: rgba(125, 211, 252, 0.55);
    stroke-width: 1.5;
    stroke-dasharray: 6 8;
    animation: hero-tech-flow 2.4s linear infinite;
}
.hero-tech-link-2 { animation-delay: 0.4s; }
.hero-tech-link-3 { animation-delay: 0.8s; }
.hero-tech-link-4 { animation-delay: 1.2s; }
.hero-tech-node-dot {
    fill: #7dd3fc;
    filter: drop-shadow(0 0 6px rgba(125, 211, 252, 0.9));
    animation: hero-tech-node-pulse 2s ease-in-out infinite;
}
.hero-tech-hub {
    position: absolute;
    inset: 0;
    margin: auto;
    width: 46%;
    height: 46%;
    display: grid;
    place-items: center;
}
.hero-tech-hub-glow {
    position: absolute;
    inset: -20%;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(56, 189, 248, 0.35) 0%, transparent 68%);
    animation: hero-tech-glow 3s ease-in-out infinite;
}
.hero-tech-hub-frame {
    position: relative;
    width: 100%;
    height: 100%;
    padding: 10px;
    border-radius: 14px;
    background: linear-gradient(145deg, rgba(8, 47, 120, 0.55) 0%, rgba(15, 23, 42, 0.35) 100%);
    border: 1px solid rgba(125, 211, 252, 0.45);
    box-shadow:
        0 0 0 1px rgba(255, 255, 255, 0.08) inset,
        0 16px 40px rgba(0, 30, 90, 0.35),
        0 0 24px rgba(56, 189, 248, 0.2);
    overflow: hidden;
    backdrop-filter: blur(4px);
}
.hero-tech-hub-head {
    display: flex;
    align-items: center;
    gap: 5px;
    margin-bottom: 8px;
    padding-bottom: 8px;
    border-bottom: 1px solid rgba(125, 211, 252, 0.2);
}
.hero-tech-hub-head span {
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: rgba(125, 211, 252, 0.85);
    box-shadow: 0 0 8px rgba(125, 211, 252, 0.8);
}
.hero-tech-hub-head em {
    margin-left: auto;
    font-style: normal;
    font-size: 9px;
    letter-spacing: 0.14em;
    color: rgba(186, 230, 253, 0.9);
    font-family: Consolas, "Courier New", monospace;
}
.hero-tech-hub-body {
    display: flex;
    align-items: flex-end;
    gap: 10px;
    min-height: 72px;
}
.hero-tech-stat strong {
    display: block;
    font-size: 22px;
    line-height: 1.1;
    color: #e0f2fe;
    font-family: Consolas, "Courier New", monospace;
    text-shadow: 0 0 12px rgba(125, 211, 252, 0.6);
}
.hero-tech-stat small {
    display: block;
    margin-top: 4px;
    font-size: 10px;
    color: rgba(186, 230, 253, 0.75);
}
.hero-tech-bars {
    flex: 1;
    display: flex;
    align-items: flex-end;
    gap: 5px;
    height: 72px;
}
.hero-tech-bars span {
    flex: 1;
    height: var(--h);
    min-height: 12%;
    border-radius: 3px 3px 0 0;
    background: linear-gradient(180deg, #7dd3fc 0%, rgba(14, 165, 233, 0.35) 100%);
    box-shadow: 0 0 10px rgba(56, 189, 248, 0.45);
    animation: hero-tech-bar 2.8s ease-in-out infinite;
}
.hero-tech-bars span:nth-child(2) { animation-delay: 0.3s; }
.hero-tech-bars span:nth-child(3) { animation-delay: 0.6s; }
.hero-tech-bars span:nth-child(4) { animation-delay: 0.9s; }
.hero-tech-bars span:nth-child(5) { animation-delay: 1.2s; }
.hero-tech-scan {
    position: absolute;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, transparent, rgba(125, 211, 252, 0.9), transparent);
    box-shadow: 0 0 12px rgba(125, 211, 252, 0.8);
    animation: hero-tech-scan 3s ease-in-out infinite;
}
.hero-tech-chip {
    position: absolute;
    padding: 4px 10px;
    border-radius: 999px;
    font-size: 10px;
    letter-spacing: 0.12em;
    font-family: Consolas, "Courier New", monospace;
    color: rgba(224, 242, 254, 0.92);
    background: rgba(8, 47, 120, 0.45);
    border: 1px solid rgba(125, 211, 252, 0.35);
    box-shadow: 0 0 14px rgba(56, 189, 248, 0.25);
}
.hero-tech-chip-1 { top: 6%; right: 4%; animation: hero-tech-chip 5s ease-in-out infinite; }
.hero-tech-chip-2 { bottom: 10%; right: 8%; animation: hero-tech-chip 5.5s ease-in-out infinite 0.6s; }
.hero-tech-chip-3 { top: 18%; left: 2%; animation: hero-tech-chip 6s ease-in-out infinite 1s; }

@keyframes hero-tech-spin {
    to { transform: rotate(360deg); }
}
@keyframes hero-tech-grid-pulse {
    0%, 100% { opacity: 0.65; }
    50% { opacity: 1; }
}
@keyframes hero-tech-flow {
    to { stroke-dashoffset: -28; }
}
@keyframes hero-tech-node-pulse {
    0%, 100% { opacity: 0.55; }
    50% { opacity: 1; }
}
@keyframes hero-tech-glow {
    0%, 100% { opacity: 0.7; transform: scale(1); }
    50% { opacity: 1; transform: scale(1.05); }
}
@keyframes hero-tech-scan {
    0% { top: 18%; opacity: 0; }
    15% { opacity: 1; }
    85% { opacity: 1; }
    100% { top: 88%; opacity: 0; }
}
@keyframes hero-tech-bar {
    0%, 100% { filter: brightness(1); transform: scaleY(1); }
    50% { filter: brightness(1.25); transform: scaleY(1.08); }
}
@keyframes hero-tech-chip {
    0%, 100% { transform: translateY(0); opacity: 0.75; }
    50% { transform: translateY(-4px); opacity: 1; }
}

@media (prefers-reduced-motion: reduce) {
    .hero-banner-fx-grid,
    .hero-banner-fx-glow,
    .hero-banner-fx-orbit,
    .hero-banner-fx-link,
    .hero-banner-fx-node,
    .hero-banner-fx-hub-glow,
    .hero-banner-fx-hub-scan,
    .hero-banner-fx-bars span,
    .hero-banner-fx-chip,
    .hero-banner-fx-scan,
    .hero-banner-fx-particles span,
    .hero-slide--has-bg::after,
    .hero-tech-grid,
    .hero-tech-orbit,
    .hero-tech-link,
    .hero-tech-node-dot,
    .hero-tech-hub-glow,
    .hero-tech-scan,
    .hero-tech-bars span,
    .hero-tech-chip {
        animation: none !important;
    }
}

.hero-indicators {
    position: absolute;
    bottom: 28px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 8px;
    z-index: 2;
}
.hero-indicator {
    width: 36px;
    height: 4px;
    border: 0;
    border-radius: 2px;
    background: rgba(255,255,255,.35);
    cursor: pointer;
    padding: 0;
}
.hero-indicator.is-active { background: #fff; }

/* ========== 区块通用 ========== */
.block { padding: 70px 0; }
.block-dark { background: var(--brand-black); color: #fff; }
.block-white { background: #fff; }
.block-white + .block-white {
    border-top: 1px solid #f0f0f0;
}
.product-showcase + .product-showcase {
    border-top: 1px solid #f0f0f0;
}
.block-blue {
    background: var(--brand-blue);
    color: #fff;
    background-image:
        radial-gradient(circle at 20% 30%, rgba(255,255,255,.08) 0, transparent 40%),
        radial-gradient(circle at 80% 70%, rgba(255,255,255,.06) 0, transparent 35%);
}

.block-head { text-align: center; margin-bottom: 50px; }
.block-title {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 24px;
    margin-bottom: 16px;
}
.block-title::before,
.block-title::after {
    content: "";
    width: 80px;
    height: 1px;
    background: rgba(255,255,255,.35);
}
.block-title span {
    font-size: 28px;
    font-weight: 400;
    letter-spacing: 2px;
}
.block-sub {
    margin: 0;
    font-size: 14px;
    color: rgba(255,255,255,.65);
}

.block-title-dark::before,
.block-title-dark::after { background: #ddd; }
.block-title-dark span { color: #333; }
.block-sub-dark { color: var(--text-secondary); }

/* ========== 解决方案 ========== */
.solution-row {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}
.solution-item {
    background: #fff;
    border-radius: 6px;
    padding: 36px 20px 28px;
    text-align: center;
    color: #333;
    transition: transform .25s, box-shadow .25s;
}
.solution-item:hover {
    transform: translateY(-6px);
    box-shadow: 0 12px 32px rgba(0,0,0,.1);
}
.solution-icon {
    width: 72px;
    height: 72px;
    margin: 0 auto 20px;
}
.solution-icon img { width: 100%; height: 100%; object-fit: contain; }
.solution-item h3 {
    margin: 0 0 12px;
    font-size: 18px;
    font-weight: 600;
}
.solution-more {
    font-size: 13px;
    color: var(--text-muted);
}

.solutions-block .solution-item {
    border: 1px solid var(--border-color);
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.05);
}
.hardware-block .hardware-card {
    border: 1px solid var(--border-color);
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.05);
}

/* ========== 产品特性 ========== */
.feature-row {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 36px 24px;
}
.feature-item {
    text-align: center;
    padding: 16px 10px;
    border-radius: 8px;
    transition: transform .25s ease, background .25s ease;
}
.feature-item:hover {
    transform: translateY(-6px);
    background: rgba(0, 102, 255, 0.04);
}
.feature-icon {
    width: 64px;
    height: 64px;
    max-width: 64px;
    max-height: 64px;
    margin: 0 auto 16px;
    object-fit: contain;
    transition: transform .25s ease;
}
.feature-item:hover .feature-icon {
    transform: scale(1.1);
}
.feature-item h4 {
    margin: 0 0 10px;
    font-size: 16px;
    font-weight: 600;
    color: #333;
    transition: color .25s ease;
}
.feature-item:hover h4 {
    color: var(--brand-blue);
}
.feature-item p {
    margin: 0;
    font-size: 13px;
    color: var(--text-secondary);
    line-height: 1.7;
}

/* ========== 智能硬件 ========== */
.hardware-row {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}
.hardware-card {
    background: #fff;
    border-radius: 6px;
    overflow: hidden;
    color: #333;
}
.hardware-img { height: 160px; overflow: hidden; background: #f0f0f0; }
.hardware-img img { width: 100%; height: 100%; object-fit: cover; }
.hardware-img-placeholder {
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, #e8f2ff, #f5f5f5);
}
.hardware-body { padding: 18px 16px; }
.hardware-body p {
    margin: 0;
    font-size: 13px;
    color: var(--text-secondary);
    line-height: 1.7;
}

/* ========== 客户 ========== */
.clients-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
    gap: 28px 24px;
    align-items: stretch;
}
.client-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 12px;
    min-height: 0;
    padding: 12px 8px;
    background: transparent;
    border: none;
    border-radius: 0;
    transition: transform .2s;
}
.client-item:hover {
    transform: translateY(-2px);
}
.client-logo {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    min-height: 88px;
}
.client-item img {
    max-width: 100%;
    max-height: 88px;
    width: auto;
    height: auto;
    object-fit: contain;
    filter: grayscale(10%);
    opacity: .92;
}
.client-item:hover img {
    filter: none;
    opacity: 1;
}
.client-name {
    font-size: 15px;
    font-weight: 500;
    color: var(--text-primary);
    text-align: center;
    line-height: 1.4;
}

/* ========== 内页 Banner ========== */
.page-banner {
    background: var(--brand-blue);
    padding: 48px 0 42px;
    text-align: center;
    color: #fff;
}
.page-banner h1 {
    margin: 0 0 8px;
    font-size: 32px;
    font-weight: 400;
    letter-spacing: 2px;
}
.page-banner p {
    margin: 0;
    font-size: 14px;
    opacity: .75;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.page-section { padding: 50px 0 70px; background: #fff; }
.page-section-gray { background: #f7f7f7; }
.page-section-listing {
    padding: 40px 0 72px;
}
.page-section-doc {
    padding: 48px 0 80px;
    background: #fff;
    min-height: min(480px, calc(100vh - 320px));
}
.page-section-listing .container-wide {
    min-height: min(480px, calc(100vh - 320px));
}
.container-wide {
    width: 100%;
    max-width: var(--container);
    padding-left: max(3%, 16px);
    padding-right: max(3%, 16px);
    margin: 0 auto;
}
.content-body-wide {
    max-width: none;
    margin: 0;
    width: 100%;
    font-size: 16px;
}
.doc-back {
    margin: 48px 0 0;
}

/* 内容少的内页：最后一块内容区自动撑满，避免 main 里露出白条 */
.page-inner main > .page-section:last-child,
.page-inner main > .page-section-gray:last-child {
    flex: 1 0 auto;
}

/* ========== 内页通用组件 ========== */
.tabs-bar {
    display: flex;
    justify-content: center;
    gap: 0;
    margin-bottom: 36px;
    border-bottom: 1px solid var(--border-color);
}
.tabs-bar .tab {
    padding: 14px 28px;
    font-size: 15px;
    color: var(--text-secondary);
    border-bottom: 2px solid transparent;
    margin-bottom: -1px;
}
.tabs-bar .tab.active,
.tabs-bar .tab:hover {
    color: var(--brand-blue);
    border-bottom-color: var(--brand-blue);
    background: transparent;
}

.panel {
    background: #fff;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    padding: 24px;
}
.panel + .panel { margin-top: 16px; }

.download-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    padding: 24px;
    background: #fff;
    border: 1px solid var(--border-color);
    margin-bottom: 16px;
}
.download-row h3 { margin: 0 0 6px; font-size: 18px; }
.download-row p { margin: 0; color: var(--text-secondary); font-size: 13px; }

.download-qrcode-card {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 32px;
    padding: 32px;
    background: #fff;
    border: 1px solid var(--border-color);
    margin-bottom: 16px;
}
.download-qrcode-card.is-centered {
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    max-width: 440px;
    margin: 24px auto 16px;
    padding: 40px 36px 36px;
    gap: 20px;
    background: transparent;
    border: none;
    box-shadow: none;
}
.download-qrcode-card.is-centered .download-qrcode-info {
    width: 100%;
}
.download-qrcode-card.is-centered .download-qrcode-box {
    padding: 0;
    background: transparent;
    border: none;
    border-radius: 0;
}
.download-qrcode-card.is-centered .download-qrcode-tip {
    margin: 0 !important;
    text-align: center;
}
.download-qrcode-card.is-centered .download-qrcode-box img {
    width: 180px;
    height: 180px;
}
.download-qrcode-info h3 { margin: 0 0 8px; font-size: 20px; }
.download-qrcode-info p { margin: 0 0 6px; color: var(--text-secondary); font-size: 14px; line-height: 1.7; }
.download-qrcode-tip { color: var(--brand-blue) !important; font-size: 13px !important; margin-top: 10px !important; }
.download-qrcode-box {
    flex-shrink: 0;
    padding: 12px;
    background: #fafafa;
    border: 1px solid var(--border-color);
    border-radius: 8px;
}
.download-qrcode-box img {
    display: block;
    width: 160px;
    height: 160px;
    object-fit: contain;
}
@media (max-width: 640px) {
    .download-qrcode-card:not(.is-centered) {
        flex-direction: column;
        align-items: flex-start;
        text-align: left;
    }
    .download-qrcode-card:not(.is-centered) .download-qrcode-box { align-self: center; }
    .download-qrcode-card.is-centered {
        max-width: none;
        margin-top: 16px;
        padding: 32px 24px;
    }
}
.tag-version {
    display: inline-block;
    padding: 2px 10px;
    background: #eef4ff;
    color: var(--brand-blue);
    font-size: 12px;
    border-radius: 2px;
    margin-left: 8px;
}

.compare-wrap {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    max-width: 100%;
}
.compare-table {
    width: 100%;
    border-collapse: collapse;
    background: #fff;
    border: 1px solid var(--border-color);
}
.compare-table th,
.compare-table td {
    border: 1px solid var(--border-color);
    padding: 18px 14px;
    text-align: center;
    font-size: 14px;
}
.compare-table thead th {
    background: #fafafa;
    vertical-align: top;
    min-width: 140px;
}
.compare-table thead th.featured { background: #eef4ff; }
.compare-table .pkg-name { font-size: 18px; font-weight: 600; display: block; margin-bottom: 6px; }
.compare-table .pkg-tag { font-size: 12px; color: var(--text-muted); display: block; }
.compare-table .pkg-price {
    margin-top: 10px;
    display: flex;
    flex-direction: column;
    gap: 6px;
    align-items: center;
}
.compare-table .pkg-price-line {
    font-size: 14px;
    font-weight: 600;
    line-height: 1.45;
    color: var(--brand-orange);
}
.compare-table tbody td:first-child {
    text-align: left;
    font-weight: 500;
    background: #fafafa;
}

.article-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(min(100%, 360px), 1fr));
    gap: 24px;
    width: 100%;
}
.article-card {
    background: #fff;
    border: 1px solid var(--border-color);
    overflow: hidden;
    transition: box-shadow .2s;
}
.article-card:hover { box-shadow: 0 8px 24px rgba(0,0,0,.08); }
.article-card-cover { height: 180px; overflow: hidden; background: #f0f0f0; }
.article-card-cover img {
    width: 100%;
    height: 100%;
    max-width: none;
    max-height: none;
    object-fit: cover;
}
.article-card-body { padding: 20px; }
.article-card-body h2 { margin: 8px 0 10px; font-size: 17px; line-height: 1.5; }
.article-card-body h2 a:hover { color: var(--brand-blue); }
.article-card-body p { margin: 0; font-size: 13px; color: var(--text-secondary); }
.article-meta { font-size: 12px; color: var(--text-muted); margin-top: 12px; }
.cat-tag {
    display: inline-block;
    padding: 2px 8px;
    background: #eef4ff;
    color: var(--brand-blue);
    font-size: 12px;
}

.help-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(min(100%, 360px), 1fr));
    gap: 16px;
    width: 100%;
}
.help-link {
    display: block;
    padding: 24px 28px;
    min-height: 96px;
    background: #fff;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    transition: border-color .2s, box-shadow .2s;
}
.help-link:hover {
    border-color: var(--brand-blue);
    box-shadow: 0 6px 20px rgba(0, 102, 255, 0.08);
}
.help-link h3 { margin: 10px 0 0; font-size: 17px; line-height: 1.5; }

.changelog-list { max-width: 860px; margin: 0 auto; }
.changelog-scroll {
    max-height: min(560px, calc(100vh - 260px));
    overflow-y: auto;
    padding-right: 4px;
    scrollbar-width: none;
    -ms-overflow-style: none;
}
.changelog-scroll::-webkit-scrollbar {
    width: 0;
    height: 0;
    display: none;
}
.changelog-card {
    border-left: 3px solid var(--brand-blue);
    padding: 0 0 32px 24px;
    margin-bottom: 8px;
    position: relative;
}
.changelog-card::before {
    content: "";
    position: absolute;
    left: -7px;
    top: 4px;
    width: 11px;
    height: 11px;
    border-radius: 50%;
    background: var(--brand-blue);
}
.changelog-head { display: flex; align-items: center; gap: 14px; margin-bottom: 10px; }
.ver-tag {
    background: var(--brand-blue);
    color: #fff;
    padding: 4px 12px;
    font-size: 13px;
    font-weight: 600;
}
.changelog-card h2 { margin: 0 0 10px; font-size: 18px; }
.changelog-card .content-body { font-size: 14px; color: var(--text-secondary); }

.content-body {
    max-width: 860px;
    margin: 0 auto;
    font-size: 15px;
    line-height: 1.9;
    color: var(--text-primary);
    overflow-x: hidden;
    overflow-wrap: break-word;
}
.content-body img,
.product-showcase-detail img {
    max-width: 100% !important;
    width: auto !important;
    height: auto !important;
    object-fit: contain;
    margin: 12px auto;
}
.content-body img.content-cover {
    width: 100% !important;
    max-width: 100% !important;
    border-radius: 4px;
    margin-bottom: 24px;
}
.content-body ul { padding-left: 22px; margin: 12px 0 16px; }
.content-body ul li { margin-bottom: 8px; }
.content-body h2 {
    margin: 28px 0 12px;
    font-size: 18px;
    font-weight: 600;
    color: #222;
}
.content-body h2:first-child { margin-top: 0; }
.content-body h3 {
    margin: 20px 0 10px;
    font-size: 16px;
    font-weight: 600;
    color: #333;
}
.content-body .policy-lead {
    margin: 0 0 24px;
    font-size: 17px;
    text-align: center;
}
.about-contact {
    margin-top: 32px;
    padding-top: 24px;
    border-top: 1px solid var(--border-color);
}
.about-contact p { margin: 0 0 8px; }
.about-contact a {
    color: var(--brand-blue);
    font-size: 18px;
    font-weight: 600;
    letter-spacing: 0.02em;
}

.pagination {
    display: flex;
    justify-content: center;
    gap: 8px;
    margin-top: 40px;
}
.pagination a {
    min-width: 36px;
    height: 36px;
    line-height: 36px;
    text-align: center;
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
}
.pagination a.active,
.pagination a:hover {
    background: var(--brand-blue);
    border-color: var(--brand-blue);
    color: #fff;
}

.empty-tip {
    text-align: center;
    padding: 80px 20px;
    color: var(--text-muted);
    font-size: 15px;
}

/* ========== 申请注册 ========== */
.register-panel {
    max-width: 820px;
    margin: 0 auto;
    background: #fff;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 36px 40px 44px;
}
.register-section {
    margin-bottom: 32px;
    padding-bottom: 28px;
    border-bottom: 1px solid var(--border-color);
}
.register-section:last-of-type {
    border-bottom: 0;
    margin-bottom: 0;
    padding-bottom: 0;
}
.register-section h3 {
    margin: 0 0 20px;
    font-size: 18px;
    font-weight: 600;
    color: var(--text-primary);
}
.register-form .form-field {
    display: block;
    margin-bottom: 18px;
    font-size: 14px;
    color: var(--text-secondary);
}
.register-form .form-field em {
    color: #e53935;
    font-style: normal;
}
.register-form .form-field input[type="text"],
.register-form .form-field input[type="email"],
.register-form .form-field input[type="tel"],
.register-form .form-field input[type="number"],
.register-form .form-field input[type="password"] {
    display: block;
    width: 100%;
    margin-top: 8px;
    height: 42px;
    padding: 0 14px;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    font-size: 14px;
    color: var(--text-primary);
}
.register-form .form-field input:focus {
    outline: none;
    border-color: var(--brand-blue);
}
.form-row {
    display: flex;
    align-items: center;
    gap: 20px;
    margin-bottom: 18px;
}
.form-label {
    min-width: 88px;
    font-size: 14px;
    color: var(--text-secondary);
}
.form-label em {
    color: #e53935;
    font-style: normal;
}
.radio-group {
    display: flex;
    gap: 24px;
}
.radio-group label {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    cursor: pointer;
    font-size: 14px;
}
.form-grid-2 {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px 20px;
}
.package-select-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 14px;
}
.package-option {
    display: block;
    cursor: pointer;
}
.package-option input {
    position: absolute;
    opacity: 0;
    pointer-events: none;
}
.package-option-body {
    display: block;
    padding: 18px 16px;
    border: 2px solid var(--border-color);
    border-radius: 6px;
    text-align: center;
    transition: border-color .2s, background .2s;
}
.package-option input:checked + .package-option-body {
    border-color: var(--brand-blue);
    background: #eef4ff;
}
.package-option-body strong {
    display: block;
    font-size: 16px;
    margin-bottom: 6px;
    color: var(--text-primary);
}
.package-option-body em {
    display: block;
    font-style: normal;
    color: var(--brand-orange);
    font-weight: 600;
    margin-bottom: 4px;
    font-size: 13px;
    line-height: 1.45;
}
.package-price-lines em:last-child {
    margin-bottom: 0;
}
.package-option-body small {
    display: block;
    font-size: 12px;
    color: var(--text-muted);
    line-height: 1.5;
}
.register-agree {
    margin: 24px 0;
    font-size: 14px;
    color: var(--text-secondary);
}
.register-agree-hint {
    margin: 0 0 10px;
    font-size: 13px;
    color: var(--text-muted);
}
.register-agree-label {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 4px;
    cursor: default;
    line-height: 1.8;
}
.register-agree-label input[type="checkbox"] {
    margin-right: 4px;
}
.register-agree-label input[type="checkbox"]:disabled {
    cursor: not-allowed;
}
.legal-link {
    border: 0;
    background: none;
    padding: 0;
    font: inherit;
    color: var(--brand-blue);
    text-decoration: underline;
    cursor: pointer;
}
.legal-link:hover { color: var(--brand-blue-dark); }
.legal-link.is-read {
    color: #047857;
    text-decoration: none;
}
.legal-link.is-read::after {
    content: " ✓";
    font-size: 12px;
}

.legal-modal {
    position: fixed;
    inset: 0;
    z-index: 2000;
    display: none;
    align-items: center;
    justify-content: center;
    padding: 20px;
}
.legal-modal.is-open {
    display: flex;
}
.legal-modal-backdrop {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.55);
}
.legal-modal-dialog {
    position: relative;
    width: min(720px, 100%);
    max-height: min(86vh, 760px);
    background: #fff;
    border-radius: 10px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.25);
    display: flex;
    flex-direction: column;
    overflow: hidden;
}
.legal-modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding: 18px 22px;
    border-bottom: 1px solid var(--border-color);
}
.legal-modal-header h3 {
    margin: 0;
    font-size: 18px;
    font-weight: 600;
}
.legal-modal-close {
    border: 0;
    background: none;
    font-size: 28px;
    line-height: 1;
    color: #999;
    cursor: pointer;
    padding: 0 4px;
}
.legal-modal-close:hover { color: #333; }
.legal-modal-body {
    flex: 1 1 auto;
    overflow-y: auto;
    padding: 24px 28px;
    max-width: none;
    margin: 0;
}
.legal-modal-footer {
    padding: 16px 22px 20px;
    border-top: 1px solid var(--border-color);
    text-align: center;
    background: #fafafa;
}
.legal-modal-tip {
    margin: 0 0 12px;
    font-size: 13px;
    color: var(--text-muted);
}
.legal-modal-tip.is-ready {
    color: #047857;
}
#legalModalConfirm:disabled {
    opacity: 0.45;
    cursor: not-allowed;
}

.register-actions {
    text-align: center;
    padding-top: 8px;
}
.register-errors {
    background: #fff2f0;
    border: 1px solid #ffccc7;
    border-radius: 6px;
    padding: 14px 18px;
    margin-bottom: 24px;
    color: #cf1322;
    font-size: 14px;
}
.register-errors p {
    margin: 0 0 6px;
}
.register-errors p:last-child {
    margin-bottom: 0;
}
.register-success {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    padding: 40px 20px;
}
.register-success h2 {
    margin: 0 0 12px;
    font-size: 24px;
    color: var(--text-primary);
    width: 100%;
}
.register-success-lead {
    margin: 0 0 28px;
    color: var(--text-secondary);
    line-height: 1.8;
    font-size: 15px;
    max-width: 520px;
}
.register-success-qrcode {
    display: flex;
    flex-direction: column;
    align-items: center;
    width: 100%;
    max-width: 280px;
    margin: 0 0 28px;
    padding: 24px;
    background: #fafafa;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    box-sizing: border-box;
}
.register-success-qrcode img {
    display: block;
    width: 200px;
    height: 200px;
    max-width: 200px;
    max-height: 200px;
    object-fit: contain;
    margin: 0 auto;
    background: #fff;
    padding: 8px;
    border-radius: 6px;
    box-sizing: border-box;
}
.register-success-qrcode-placeholder {
    width: 200px;
    height: 200px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #fff;
    border: 1px dashed var(--border-color);
    color: var(--text-muted);
    font-size: 14px;
    border-radius: 6px;
}
.register-success-qrcode-tip {
    margin: 16px 0 0;
    font-size: 16px;
    font-weight: 500;
    color: var(--brand-blue);
    line-height: 1.6;
    text-align: center;
}
.register-success-actions {
    margin: 0;
}

/* ========== 产品介绍页 ========== */
.product-hero {
    background: linear-gradient(180deg, #0078ff 0%, #0066ff 55%, #005adb 100%);
    color: #fff;
    overflow: hidden;
}
.product-hero-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 40px;
    min-height: 460px;
    padding: 90px 0 70px;
}
.product-hero-copy { flex: 1; max-width: 560px; }
.product-hero-copy h1 {
    margin: 0 0 24px;
    font-size: 36px;
    font-weight: 700;
    line-height: 1.45;
    letter-spacing: 1px;
}
.product-hero-copy p {
    margin: 0 0 14px;
    font-size: 15px;
    line-height: 1.9;
    color: rgba(255, 255, 255, 0.92);
}
.product-hero-visual {
    flex: 0 0 420px;
    max-width: 44%;
    overflow: hidden;
    text-align: right;
}
.product-hero-visual img {
    width: auto;
    max-width: 100%;
    max-height: 380px;
    height: auto;
    object-fit: contain;
    margin-left: auto;
}

.product-showcase { padding: 72px 0; background: #fff; }
.product-showcase--light { background: #fff; color: var(--text-primary); }
.product-showcase-note {
    text-align: center;
    margin: 0 0 28px;
    font-size: 14px;
    color: var(--text-secondary);
}
.product-showcase .block-head { margin-bottom: 36px; }
.product-showcase-visual {
    max-width: 960px;
    margin: 0 auto;
    text-align: center;
    overflow: hidden;
}
.product-showcase-visual img {
    width: auto;
    max-width: 100%;
    max-height: 520px;
    height: auto;
    object-fit: contain;
    display: inline-block;
    margin: 0 auto;
}
.product-showcase-detail {
    max-width: 820px;
    margin: 32px auto 0;
    font-size: 14px;
    line-height: 1.9;
    color: var(--text-secondary);
    text-align: center;
    overflow-x: hidden;
}

.product-task-cards {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    max-width: 960px;
    margin: 0 auto 36px;
}
.product-task-card {
    background: #f7f8fa;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    overflow: hidden;
}
.product-task-card img {
    width: 100%;
    height: auto;
    display: block;
}

/* ========== 页脚 ========== */
.site-footer {
    flex: 0 0 auto;
    margin-top: auto;
    width: 100%;
    margin-bottom: 0;
    background: var(--footer-bg);
    color: #bbb;
    padding-bottom: env(safe-area-inset-bottom, 0);
}
.footer-main {
    display: grid;
    grid-template-columns: 1.4fr 1fr 1fr 1.2fr 130px;
    gap: 30px;
    padding: 50px 0 40px;
    align-items: start;
}
.footer-hotline { display: flex; gap: 16px; align-items: flex-start; }
.footer-hotline-icon {
    width: 48px;
    height: 48px;
    background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23fff' stroke-width='1.5'%3E%3Cpath d='M3 11c0-5 4-9 9-9s9 4 9 9-4 9-9 9'/%3E%3Cpath d='M12 8v4l3 2'/%3E%3C/svg%3E") center/contain no-repeat;
    opacity: .8;
    flex-shrink: 0;
}
.footer-hotline-label { margin: 0 0 8px; font-size: 14px; color: #999; }
.footer-hotline-phone {
    margin: 0;
    font-size: 28px;
    font-weight: 700;
    color: #fff;
    letter-spacing: 1px;
}
.footer-links-group h4 {
    margin: 0 0 16px;
    font-size: 15px;
    font-weight: 600;
    color: #fff;
}
.footer-links-group a,
.footer-links-group p {
    display: block;
    margin: 0 0 10px;
    font-size: 13px;
    color: #aaa;
    line-height: 1.6;
}
.footer-links-group a:hover { color: #fff; }
.footer-qrcode {
    justify-self: end;
}
.qrcode-box {
    width: 110px;
    text-align: center;
}
.qrcode-box img {
    width: 110px;
    height: 110px;
    max-width: 110px;
    max-height: 110px;
    object-fit: contain;
    background: #fff;
    padding: 4px;
    box-sizing: border-box;
    border-radius: 4px;
}
.qrcode-caption {
    display: block;
    margin-top: 10px;
    font-size: 13px;
    color: #ccc;
    line-height: 1.4;
}
.qrcode-placeholder .qrcode-caption {
    margin-top: 0;
}
.qrcode-placeholder {
    width: 110px;
    min-height: 110px;
    background: rgba(255, 255, 255, 0.08);
    border: 1px dashed #555;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 6px;
    padding: 12px 8px;
    box-sizing: border-box;
    border-radius: 4px;
}
.qrcode-placeholder small {
    font-size: 11px;
    color: #777;
}
.footer-friend-links {
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    background: #262626;
    padding: 18px 0;
}
.footer-friend-inner {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: center;
}
.footer-friend-list {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: center;
    gap: 12px 36px;
}
.footer-friend-list a {
    display: inline-block;
    padding: 2px 4px;
    font-size: 13px;
    color: #aaa;
    line-height: 1.5;
}
.footer-friend-list a:hover {
    color: #fff;
}
.footer-bottom {
    background: var(--footer-bottom);
    padding: 16px 0;
    text-align: center;
}
.footer-bottom p {
    margin: 4px 0;
    font-size: 12px;
    color: #777;
}
.footer-bottom a { color: #777; }

/* ========== 右侧悬浮栏（不参与页面高度计算） ========== */
.float-bar-wrap {
    position: fixed;
    right: 0;
    top: 0;
    width: 0;
    height: 0;
    overflow: visible;
    z-index: 999;
    pointer-events: none;
}
.float-bar {
    pointer-events: auto;
    position: fixed;
    right: 0;
    top: 50%;
    transform: translateY(-50%);
    background: #fff;
    box-shadow: -2px 0 12px rgba(0,0,0,.08);
    border: 1px solid var(--border-color);
    border-right: 0;
    max-height: calc(100vh - 40px);
    overflow: visible;
}
.float-bar-item-wrap {
    position: relative;
    border-bottom: 1px solid #f0f0f0;
}
.float-bar-item-wrap:last-of-type { border-bottom: 0; }
.float-bar-pop {
    position: absolute;
    right: 100%;
    top: 50%;
    transform: translateY(-50%);
    padding: 14px 18px;
    margin-right: 2px;
    background: #fff;
    box-shadow: 0 4px 24px rgba(0,0,0,.12);
    border-radius: 6px;
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: opacity .2s, visibility .2s;
    z-index: 1002;
    box-sizing: border-box;
}
.float-bar-pop--phone {
    width: auto;
    max-width: 220px;
    white-space: nowrap;
}
.float-bar-pop::after {
    content: "";
    position: absolute;
    left: 100%;
    top: 50%;
    transform: translateY(-50%);
    border: 8px solid transparent;
    border-left-color: #fff;
    filter: drop-shadow(2px 0 2px rgba(0,0,0,.06));
}
.float-bar-item-wrap:hover .float-bar-pop {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
}
.float-bar-pop-label {
    margin: 0 0 6px;
    font-size: 12px;
    color: #888;
    text-align: center;
}
.float-bar-pop-value {
    margin: 0;
    font-size: 20px;
    font-weight: 700;
    color: var(--brand-blue);
    text-align: center;
    white-space: nowrap;
}
.float-bar-pop-sub {
    margin: 4px 0 0;
    font-size: 12px;
    color: #666;
    text-align: center;
    word-break: break-all;
}
.float-bar-pop--service {
    width: 148px;
    max-width: 148px;
    padding: 12px 14px;
    overflow: hidden;
}
.float-bar-qrcode-box {
    width: 120px;
    height: 120px;
    margin: 0 auto 8px;
    overflow: hidden;
    border-radius: 4px;
    background: #f5f5f5;
    flex-shrink: 0;
}
.float-bar-pop .float-bar-pop-qrcode {
    display: block;
    width: 120px;
    height: 120px;
    max-width: 120px;
    max-height: 120px;
    margin: 0;
    object-fit: contain;
    background: #f5f5f5;
}
.float-bar-pop-link {
    display: block;
    margin-top: 10px;
    font-size: 13px;
    color: var(--brand-blue);
    text-align: center;
}
.float-bar-item--static {
    width: 100%;
    border: 0;
    font-family: inherit;
}
.float-bar-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    width: 72px;
    padding: 14px 6px;
    font-size: 11px;
    color: var(--text-secondary);
    border-bottom: 0;
    background: #fff;
    cursor: pointer;
    transition: background .2s;
}
.float-bar > .float-bar-item,
.float-bar > a.float-bar-item {
    border-bottom: 1px solid #f0f0f0;
}
.float-bar-item:last-child { border-bottom: 0; }
.float-bar-item:hover { background: #f7f7f7; color: var(--brand-blue); }
.float-bar-icon {
    width: 24px;
    height: 24px;
    margin-bottom: 6px;
    background-size: contain;
    background-repeat: no-repeat;
    background-position: center;
    opacity: .7;
}
.float-bar-icon-phone { background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23666' stroke-width='2'%3E%3Cpath d='M22 16.92v3a2 2 0 0 1-2.18 2 19.79 19.79 0 0 1-8.63-3.07 19.5 19.5 0 0 1-6-6 19.79 19.79 0 0 1-3.07-8.67A2 2 0 0 1 4.11 2h3a2 2 0 0 1 2 1.72c.127.96.361 1.903.7 2.81a2 2 0 0 1-.45 2.11L8.09 9.91a16 16 0 0 0 6 6l1.27-1.27a2 2 0 0 1 2.11-.45c.907.339 1.85.573 2.81.7A2 2 0 0 1 22 16.92z'/%3E%3C/svg%3E"); }
.float-bar-icon-service { background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23666' stroke-width='2'%3E%3Cpath d='M21 15a2 2 0 0 1-2 2H7l-4 4V5a2 2 0 0 1 2-2h14a2 2 0 0 1 2 2z'/%3E%3C/svg%3E"); }
.float-bar-icon-download { background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23666' stroke-width='2'%3E%3Cpath d='M21 15v4a2 2 0 0 1-2 2H5a2 2 0 0 1-2-2v-4M7 10l5 5 5-5M12 15V3'/%3E%3C/svg%3E"); }
.float-bar-icon-help { background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23666' stroke-width='2'%3E%3Ccircle cx='12' cy='12' r='10'/%3E%3Cpath d='M9.09 9a3 3 0 0 1 5.83 1c0 2-3 3-3 3M12 17h.01'/%3E%3C/svg%3E"); }
.float-bar-icon-top { background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23666' stroke-width='2'%3E%3Cpath d='M18 15l-6-6-6 6'/%3E%3C/svg%3E"); }
.float-bar-top { border: 0; font-family: inherit; }

/* ========== 响应式 ========== */
@media (max-width: 1100px) {
    .solution-row,
    .feature-row,
    .hardware-row { grid-template-columns: repeat(2, 1fr); }
    .clients-grid { grid-template-columns: repeat(3, 1fr); }
    .footer-main { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 768px) {
    .main-nav,
    .header-actions { display: none; }
    .main-nav.is-open {
        display: flex;
        flex-direction: column;
        position: absolute;
        top: 70px;
        left: 0;
        right: 0;
        background: var(--brand-blue);
        padding: 16px 24px 24px;
        gap: 16px;
    }
    .mobile-menu-btn { display: block; margin-left: auto; }
    .hero-slide-inner { flex-direction: column; text-align: center; padding-top: 100px; justify-content: flex-start; }
    .hero-copy h1 { font-size: 28px; }
    .hero-banner-fx-hub,
    .hero-banner-fx-chip { display: none; }
    .hero-banner-fx-orbit { opacity: 0.35; }
    .hero-btns { justify-content: center; }
    .solution-row,
    .feature-row,
    .hardware-row,
    .clients-grid,
    .article-grid { grid-template-columns: 1fr; }
    .footer-main { grid-template-columns: 1fr; }
    .float-bar { display: none; }
    .block-title::before,
    .block-title::after { width: 40px; }
    .product-hero-inner {
        flex-direction: column;
        text-align: center;
        padding-top: 100px;
        min-height: auto;
    }
    .product-hero-copy h1 { font-size: 28px; }
    .product-hero-visual { max-width: 85%; flex: none; }
    .product-task-cards { grid-template-columns: 1fr; }
    .form-grid-2 { grid-template-columns: 1fr; }
    .register-panel { padding: 24px 18px 32px; }
}

/* ========== 机位图定制 ========== */
.seat-map-section .seat-map-intro {
    max-width: 860px;
    margin: 0 auto 32px;
    text-align: center;
    font-size: 16px;
    line-height: 1.8;
    color: var(--text-secondary);
}
.seat-map-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(min(100%, 320px), 1fr));
    gap: 24px;
}
.seat-map-card {
    background: #fff;
    border: 1px solid var(--border-color);
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 8px 24px rgba(15, 23, 42, 0.05);
    display: flex;
    flex-direction: column;
}
.seat-map-media {
    aspect-ratio: 16 / 10;
    background: #0f172a;
    overflow: hidden;
    position: relative;
}
.seat-map-media-zoom {
    display: block;
    width: 100%;
    height: 100%;
    padding: 0;
    border: 0;
    background: none;
    cursor: zoom-in;
    position: relative;
}
.seat-map-media-zoom img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: transform .25s ease;
}
.seat-map-media-zoom:hover img {
    transform: scale(1.03);
}
.seat-map-zoom-hint {
    position: absolute;
    right: 12px;
    bottom: 12px;
    padding: 4px 10px;
    border-radius: 999px;
    background: rgba(0, 0, 0, 0.55);
    color: #fff;
    font-size: 12px;
    pointer-events: none;
}
.seat-map-media video {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    background: #000;
}
.seat-map-media-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: rgba(255, 255, 255, 0.65);
    font-size: 14px;
}
.seat-map-body {
    padding: 20px 20px 22px;
    display: flex;
    flex-direction: column;
    flex: 1;
}
.seat-map-body h3 {
    margin: 0 0 10px;
    font-size: 18px;
    font-weight: 600;
    color: var(--text-primary);
}
.seat-map-desc {
    margin: 0 0 12px;
    font-size: 14px;
    line-height: 1.7;
    color: var(--text-secondary);
}
.seat-map-prices {
    list-style: none;
    margin: 0 0 12px;
    padding: 0;
    display: grid;
    gap: 6px;
}
.seat-map-prices li {
    font-size: 14px;
    font-weight: 600;
    color: var(--brand-orange);
    line-height: 1.5;
}
.seat-map-time {
    margin: 0 0 16px;
    font-size: 14px;
    color: var(--text-secondary);
}
.seat-map-time span {
    display: inline-block;
    margin-right: 8px;
    padding: 2px 8px;
    border-radius: 999px;
    background: #eef4ff;
    color: var(--brand-blue);
    font-size: 12px;
}
.seat-map-order-btn {
    margin-top: auto;
    align-self: flex-start;
}
.seat-map-actions {
    margin-top: 36px;
    text-align: center;
}

.wechat-modal {
    position: fixed;
    inset: 0;
    z-index: 2100;
    display: none;
    align-items: center;
    justify-content: center;
    padding: 20px;
}
.wechat-modal.is-open {
    display: flex;
}
.wechat-modal-backdrop {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.55);
}
.wechat-modal-dialog {
    position: relative;
    width: min(420px, 100%);
    background: #fff;
    border-radius: 12px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.25);
    overflow: hidden;
}
.wechat-modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding: 18px 22px;
    border-bottom: 1px solid var(--border-color);
}
.wechat-modal-header h3 {
    margin: 0;
    font-size: 18px;
    font-weight: 600;
}
.wechat-modal-close {
    border: 0;
    background: none;
    font-size: 28px;
    line-height: 1;
    color: #999;
    cursor: pointer;
}
.wechat-modal-close:hover { color: #333; }
.wechat-modal-body {
    padding: 28px 22px 32px;
    text-align: center;
}
.wechat-modal-qrcode {
    display: inline-flex;
    padding: 12px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    background: #fff;
}
.wechat-modal-qrcode img {
    display: block;
    width: 220px;
    height: 220px;
    object-fit: contain;
}
.wechat-modal-tip {
    margin: 16px 0 0;
    font-size: 14px;
    color: var(--text-secondary);
}

.image-lightbox {
    position: fixed;
    inset: 0;
    z-index: 2200;
    display: none;
    align-items: center;
    justify-content: center;
    padding: 24px;
}
.image-lightbox.is-open {
    display: flex;
}
.image-lightbox-backdrop {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.88);
}
.image-lightbox-close {
    position: absolute;
    top: 18px;
    right: 22px;
    z-index: 2;
    width: 44px;
    height: 44px;
    border: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.12);
    color: #fff;
    font-size: 30px;
    line-height: 1;
    cursor: pointer;
}
.image-lightbox-close:hover {
    background: rgba(255, 255, 255, 0.22);
}
.image-lightbox-figure {
    position: relative;
    z-index: 1;
    margin: 0;
    max-width: min(1200px, 100%);
    max-height: calc(100vh - 48px);
    display: flex;
    flex-direction: column;
    align-items: center;
}
.image-lightbox-figure img {
    display: block;
    max-width: 100%;
    max-height: calc(100vh - 96px);
    width: auto;
    height: auto;
    object-fit: contain;
    border-radius: 8px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.35);
}
.image-lightbox-figure figcaption {
    margin-top: 14px;
    color: rgba(255, 255, 255, 0.88);
    font-size: 15px;
    text-align: center;
}