:root {
    --bg: #F4FBFF;
    --nav: #FFFFFF;
    --soft: #E8F7FF;
    --card: #FFFFFF;
    --primary: #11AEEA;
    --accent: #1688D8;
    --deep: #155A9D;
    --text: #24384A;
    --muted: #60758A;
    --border: rgba(17, 174, 234, 0.18);
    --footer: #073A68;
    --footer-text: #EAF8FF;
    --gradient: linear-gradient(135deg, #35D7FF 0%, #1688D8 100%);
    --shadow: 0 18px 50px rgba(21, 90, 157, 0.12);
    --radius: 24px;
    --header-height: 76px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
    margin: 0;
    padding-top: var(--header-height);
    overflow-x: hidden;
    color: var(--text);
    background:
        radial-gradient(circle at 12% 5%, rgba(53, 215, 255, 0.16), transparent 28%),
        radial-gradient(circle at 90% 28%, rgba(22, 136, 216, 0.10), transparent 25%),
        var(--bg);
    font-family: "Microsoft YaHei", "PingFang SC", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    line-height: 1.75;
}
body.drawer-open { overflow: hidden; }
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }
button, input, textarea, select { font: inherit; }
.container { width: min(100% - 32px, 1240px); margin-inline: auto; }

.site-header {
    position: fixed;
    inset: 0 0 auto 0;
    z-index: 1000;
    height: var(--header-height);
    background: rgba(255,255,255,0.94);
    border-bottom: 1px solid var(--border);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
}
.header-inner {
    width: min(100% - 32px, 1360px);
    height: 100%;
    margin-inline: auto;
    display: flex;
    align-items: center;
    gap: clamp(14px, 1.8vw, 28px);
}
.brand-logo, .drawer-logo { flex: 0 0 auto; display: inline-flex; align-items: center; }
.brand-logo img { width: clamp(112px, 10vw, 150px); max-height: 46px; object-fit: contain; }
.desktop-nav {
    flex: 1;
    min-width: 0;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: clamp(8px, 0.9vw, 16px);
}
.desktop-nav a {
    position: relative;
    white-space: nowrap;
    font-size: clamp(12px, 0.92vw, 14px);
    font-weight: 700;
    color: #36546d;
    padding: 8px 0;
}
.desktop-nav a::after {
    content: "";
    position: absolute;
    left: 50%; right: 50%; bottom: 2px;
    height: 2px;
    border-radius: 999px;
    background: var(--gradient);
    transition: .25s ease;
}
.desktop-nav a:hover, .desktop-nav a.active { color: var(--accent); }
.desktop-nav a:hover::after, .desktop-nav a.active::after { left: 0; right: 0; }
.header-actions { display: flex; align-items: center; gap: 10px; flex: 0 0 auto; }
.main-btn, .outline-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 44px;
    padding: 10px 22px;
    border-radius: 999px;
    font-weight: 800;
    white-space: nowrap;
    transition: transform .2s ease, box-shadow .2s ease, opacity .2s ease;
}
.main-btn { color: #fff; background: var(--gradient); box-shadow: 0 10px 28px rgba(22,136,216,.24); }
.main-btn:hover, .outline-btn:hover { transform: translateY(-2px); }
.outline-btn { color: var(--accent); border: 1px solid rgba(22,136,216,.32); background: rgba(255,255,255,.72); }
.menu-toggle {
    display: none;
    width: 44px; height: 44px;
    border: 0; border-radius: 14px;
    background: var(--soft);
    padding: 11px;
    cursor: pointer;
}
.menu-toggle span { display: block; height: 2px; margin: 5px 0; border-radius: 9px; background: var(--deep); }

.drawer-overlay {
    position: fixed; inset: 0; z-index: 1100;
    background: rgba(7,58,104,.38);
    opacity: 0; visibility: hidden;
    transition: .25s ease;
}
.drawer-overlay.open { opacity: 1; visibility: visible; }
.mobile-drawer {
    position: fixed; inset: 0 0 0 auto; z-index: 1200;
    width: min(88vw, 390px);
    padding: 22px;
    background: #fff;
    transform: translateX(105%);
    transition: transform .3s ease;
    overflow-y: auto;
    box-shadow: -25px 0 60px rgba(7,58,104,.18);
}
.mobile-drawer.open { transform: translateX(0); }
.drawer-head { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding-bottom: 18px; border-bottom: 1px solid var(--border); }
.drawer-logo img { width: 130px; max-height: 44px; object-fit: contain; }
.drawer-close { border: 0; background: var(--soft); color: var(--deep); width: 42px; height: 42px; border-radius: 14px; font-size: 28px; cursor: pointer; }
.mobile-nav { display: grid; gap: 4px; padding: 16px 0; }
.mobile-nav a { padding: 11px 14px; border-radius: 12px; font-weight: 700; color: #37546b; }
.mobile-nav a:hover { background: var(--soft); color: var(--accent); }
.drawer-register { width: 100%; }

.section { padding: clamp(60px, 7vw, 100px) 0; }
.section-compact { padding-top: 20px; }
.section-soft { background: linear-gradient(180deg, rgba(232,247,255,.78), rgba(244,251,255,.25)); border-block: 1px solid rgba(17,174,234,.08); }
.section-heading { max-width: 760px; margin-bottom: 32px; }
.section-heading.center { margin-inline: auto; text-align: center; }
.eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--accent);
    font-size: 13px;
    font-weight: 900;
    letter-spacing: .12em;
    text-transform: uppercase;
}
.eyebrow::before { content: ""; width: 24px; height: 3px; border-radius: 999px; background: var(--gradient); }
h1, h2, h3 { margin: 0; color: var(--deep); line-height: 1.3; }
h1 { font-size: clamp(34px, 5.5vw, 68px); letter-spacing: -.03em; }
h2 { font-size: clamp(28px, 3.6vw, 44px); }
h3 { font-size: clamp(19px, 2vw, 24px); }
p { margin: 0; }
.section-heading h2, .page-hero-copy h1 { margin-top: 12px; }
.section-heading p { margin-top: 14px; color: var(--muted); font-size: 17px; }
.text-link { color: var(--accent); font-weight: 800; }
.text-link:hover { text-decoration: underline; }

.hero-carousel-wrap { padding: 24px 0 0; }
.hero-carousel {
    position: relative;
    width: min(100% - 32px, 1360px);
    margin-inline: auto;
    overflow: hidden;
    border-radius: clamp(20px, 3vw, 34px);
    background: var(--soft);
    box-shadow: var(--shadow);
    aspect-ratio: 16 / 6.4;
    min-height: 260px;
}
.carousel-track { display: flex; height: 100%; transition: transform .55s cubic-bezier(.22,.61,.36,1); }
.carousel-slide { min-width: 100%; height: 100%; display: grid; place-items: center; }
.carousel-slide img { width: 100%; height: 100%; object-fit: contain; background: var(--soft); }
.carousel-arrow {
    position: absolute; top: 50%; z-index: 3;
    width: 46px; height: 46px;
    border: 0; border-radius: 50%;
    transform: translateY(-50%);
    color: #fff; background: rgba(7,58,104,.62);
    cursor: pointer; font-size: 24px;
    backdrop-filter: blur(8px);
}
.carousel-arrow.prev { left: 18px; }
.carousel-arrow.next { right: 18px; }
.carousel-dots { position: absolute; left: 50%; bottom: 18px; transform: translateX(-50%); z-index: 3; display: flex; gap: 8px; }
.carousel-dot { width: 9px; height: 9px; padding: 0; border: 0; border-radius: 50%; background: rgba(255,255,255,.55); cursor: pointer; box-shadow: 0 0 0 1px rgba(7,58,104,.12); }
.carousel-dot.active { width: 26px; border-radius: 999px; background: #fff; }

.intro-grid, .split-grid, .page-hero-grid { display: grid; grid-template-columns: 1.04fr .96fr; gap: clamp(30px, 6vw, 78px); align-items: center; }
.intro-copy p, .rich-copy p, .page-hero-copy p { color: var(--muted); font-size: 17px; margin-top: 16px; }
.hero-actions, .button-row { display: flex; flex-wrap: wrap; align-items: center; gap: 14px; margin-top: 26px; }
.media-card, .page-hero-media {
    margin: 0;
    padding: clamp(12px, 2vw, 20px);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    background: linear-gradient(145deg, #fff, #eaf8ff);
    box-shadow: var(--shadow);
}
.media-card img, .page-hero-media img { width: 100%; max-height: 470px; object-fit: contain; border-radius: calc(var(--radius) - 8px); }

.quick-grid { display: grid; grid-template-columns: repeat(5, 1fr); gap: 16px; }
.quick-card, .info-card, .review-card, .stat-card, .faq-item, .service-card {
    border: 1px solid var(--border);
    border-radius: 20px;
    background: rgba(255,255,255,.92);
    box-shadow: 0 10px 32px rgba(21,90,157,.07);
}
.quick-card { padding: 22px; transition: transform .22s ease, box-shadow .22s ease; }
.quick-card:hover, .info-card:hover { transform: translateY(-5px); box-shadow: var(--shadow); }
.quick-card .num { width: 36px; height: 36px; display: grid; place-items: center; border-radius: 12px; color: #fff; background: var(--gradient); font-weight: 900; margin-bottom: 16px; }
.quick-card p, .info-card p, .service-card p { margin-top: 10px; color: var(--muted); font-size: 15px; }
.quick-card .text-link { display: inline-flex; margin-top: 15px; font-size: 14px; }

.card-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.card-grid.four { grid-template-columns: repeat(4, 1fr); }
.info-card { padding: 26px; overflow: hidden; transition: .22s ease; }
.info-card figure { margin: -26px -26px 22px; height: 210px; padding: 10px; background: var(--soft); border-bottom: 1px solid var(--border); }
.info-card figure img { width: 100%; height: 100%; object-fit: contain; border-radius: 14px; }
.info-card .tag { display: inline-flex; padding: 5px 10px; border-radius: 999px; background: var(--soft); color: var(--accent); font-size: 12px; font-weight: 900; margin-bottom: 12px; }
.info-card .text-link { display: inline-flex; margin-top: 16px; }
.feature-list { display: grid; gap: 14px; margin: 24px 0 0; padding: 0; list-style: none; }
.feature-list li { position: relative; padding-left: 30px; color: #385268; }
.feature-list li::before { content: "✓"; position: absolute; left: 0; top: 1px; width: 21px; height: 21px; display: grid; place-items: center; border-radius: 50%; color: #fff; background: var(--gradient); font-size: 12px; font-weight: 900; }

.page-hero { padding: clamp(58px, 8vw, 110px) 0; background: linear-gradient(135deg, rgba(232,247,255,.92), rgba(244,251,255,.66)); overflow: hidden; }
.page-hero-copy { position: relative; z-index: 2; }
.page-hero-copy p { max-width: 700px; }
.hero-orbit { position: relative; min-height: 340px; }
.hero-orbit::before { content: ""; position: absolute; inset: 8%; border: 1px solid rgba(17,174,234,.28); border-radius: 50%; }
.hero-orbit::after { content: ""; position: absolute; inset: 22%; border-radius: 38% 62% 55% 45%; background: var(--gradient); box-shadow: 0 30px 80px rgba(22,136,216,.25); animation: float 6s ease-in-out infinite; }
.hero-orbit span { position: absolute; z-index: 2; width: 70px; height: 70px; border-radius: 22px; background: rgba(255,255,255,.92); border: 1px solid var(--border); box-shadow: var(--shadow); }
.hero-orbit span:nth-child(1) { left: 8%; top: 18%; }
.hero-orbit span:nth-child(2) { right: 9%; top: 34%; width: 52px; height: 52px; }
.hero-orbit span:nth-child(3) { left: 24%; bottom: 6%; width: 44px; height: 44px; }
@keyframes float { 50% { transform: translateY(-12px) rotate(4deg); } }

.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.stat-card { padding: 26px; }
.stat-card strong { display: block; color: var(--accent); font-size: 26px; }
.stat-card span { color: var(--muted); }

.service-list { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px; }
.service-card { padding: 26px; }
.service-card .service-index { color: var(--primary); font-weight: 900; margin-bottom: 8px; }

.review-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.review-card { position: relative; padding: 28px; }
.review-card .review-mark { position: absolute; top: 8px; right: 20px; color: rgba(17,174,234,.14); font-size: 72px; line-height: 1; font-family: Georgia, serif; }
.review-card p { position: relative; color: #40596f; min-height: 110px; }
.review-card strong { display: block; margin-top: 18px; color: var(--accent); }

.notice-panel {
    display: grid;
    grid-template-columns: .8fr 1.5fr auto;
    gap: 28px;
    align-items: center;
    padding: clamp(26px, 4vw, 44px);
    border: 1px solid rgba(17,174,234,.24);
    border-radius: 26px;
    background: linear-gradient(135deg, rgba(255,255,255,.96), rgba(232,247,255,.95));
    box-shadow: var(--shadow);
}
.notice-panel p { color: var(--muted); }

.faq-list { display: grid; gap: 14px; }
.faq-item { overflow: hidden; }
.faq-question { width: 100%; border: 0; background: transparent; color: var(--deep); padding: 20px 24px; display: flex; align-items: center; justify-content: space-between; gap: 20px; text-align: left; font-weight: 800; cursor: pointer; }
.faq-question span:last-child { flex: 0 0 auto; width: 28px; height: 28px; display: grid; place-items: center; border-radius: 50%; background: var(--soft); color: var(--accent); transition: transform .2s ease; }
.faq-answer { display: grid; grid-template-rows: 0fr; transition: grid-template-rows .25s ease; }
.faq-answer > div { overflow: hidden; }
.faq-answer p { padding: 0 24px 22px; color: var(--muted); }
.faq-item.open .faq-answer { grid-template-rows: 1fr; }
.faq-item.open .faq-question span:last-child { transform: rotate(45deg); }

.table-wrap { overflow-x: auto; border: 1px solid var(--border); border-radius: 20px; background: #fff; }
.info-table { width: 100%; border-collapse: collapse; min-width: 680px; }
.info-table th, .info-table td { padding: 16px 18px; border-bottom: 1px solid var(--border); text-align: left; vertical-align: top; }
.info-table th { background: var(--soft); color: var(--deep); }
.info-table td { color: var(--muted); }

.contact-form { display: grid; gap: 16px; }
.contact-form label { display: grid; gap: 8px; color: var(--deep); font-weight: 700; }
.contact-form input, .contact-form textarea, .contact-form select { width: 100%; border: 1px solid var(--border); border-radius: 14px; background: #fff; padding: 13px 15px; color: var(--text); outline: none; }
.contact-form input:focus, .contact-form textarea:focus, .contact-form select:focus { border-color: var(--primary); box-shadow: 0 0 0 4px rgba(17,174,234,.09); }
.contact-form textarea { min-height: 150px; resize: vertical; }

.site-footer { margin-top: 80px; padding: 70px 0 24px; color: var(--footer-text); background: var(--footer); }
.footer-grid { display: grid; grid-template-columns: 1.6fr repeat(3, 1fr); gap: 36px; }
.footer-brand img { width: 150px; max-height: 48px; object-fit: contain; filter: brightness(0) invert(1); }
.footer-brand p { margin-top: 18px; color: rgba(234,248,255,.75); max-width: 420px; }
.footer-column { display: grid; align-content: start; gap: 9px; }
.footer-column h3 { color: #fff; font-size: 17px; margin-bottom: 8px; }
.footer-column a { color: rgba(234,248,255,.75); font-size: 14px; }
.footer-column a:hover { color: #fff; }
.footer-notice { display: flex; align-items: flex-end; justify-content: space-between; gap: 28px; margin-top: 42px; padding-top: 24px; border-top: 1px solid rgba(234,248,255,.14); }
.footer-notice p { color: rgba(234,248,255,.68); font-size: 13px; max-width: 850px; }

.registration-page { min-height: calc(100vh - var(--header-height)); display: grid; place-items: center; padding: 60px 16px; }
.registration-card { width: min(100%, 720px); padding: clamp(32px, 6vw, 64px); border: 1px solid var(--border); border-radius: 28px; background: #fff; box-shadow: var(--shadow); text-align: center; }
.registration-card p { color: var(--muted); margin: 16px 0 26px; }

@media (max-width: 1180px) {
    .desktop-nav { display: none; }
    .menu-toggle { display: block; }
    .header-inner { gap: 12px; }
    .brand-logo { margin-right: auto; }
    .quick-grid { grid-template-columns: repeat(3, 1fr); }
    .card-grid.four { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 920px) {
    .intro-grid, .split-grid, .page-hero-grid { grid-template-columns: 1fr; }
    .page-hero-media { max-width: 680px; }
    .hero-orbit { min-height: 280px; }
    .card-grid, .review-grid { grid-template-columns: repeat(2, 1fr); }
    .stats-grid { grid-template-columns: repeat(2, 1fr); }
    .notice-panel { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1.4fr repeat(2, 1fr); }
    .footer-column:last-child { grid-column: 2 / -1; }
}
@media (max-width: 680px) {
    :root { --header-height: 68px; }
    .container { width: min(100% - 24px, 1240px); }
    .header-inner { width: min(100% - 20px, 1360px); }
    .brand-logo img { width: 104px; }
    .header-register { min-height: 40px; padding: 8px 16px; }
    .menu-toggle { width: 40px; height: 40px; padding: 9px; }
    .hero-carousel { width: min(100% - 20px, 1360px); aspect-ratio: 16 / 10; min-height: 230px; border-radius: 20px; }
    .carousel-arrow { width: 38px; height: 38px; font-size: 20px; }
    .carousel-arrow.prev { left: 10px; }
    .carousel-arrow.next { right: 10px; }
    .carousel-dots { bottom: 12px; }
    .quick-grid, .card-grid, .card-grid.four, .review-grid, .service-list, .stats-grid { grid-template-columns: 1fr; }
    .section { padding: 58px 0; }
    .quick-card { padding: 20px; }
    .info-card figure { height: 190px; }
    .review-card p { min-height: 0; }
    .footer-grid { grid-template-columns: 1fr 1fr; }
    .footer-brand { grid-column: 1 / -1; }
    .footer-column:last-child { grid-column: auto; }
    .footer-notice { align-items: flex-start; flex-direction: column; }
}
@media (max-width: 430px) {
    .header-register { padding-inline: 13px; font-size: 14px; }
    .hero-actions, .button-row { align-items: stretch; flex-direction: column; }
    .hero-actions .main-btn, .hero-actions .outline-btn, .button-row .main-btn, .button-row .outline-btn { width: 100%; }
    .footer-grid { grid-template-columns: 1fr; }
}
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after { scroll-behavior: auto !important; animation-duration: .01ms !important; transition-duration: .01ms !important; }
}