:root {
    --blue: #73c7f4;
    --blue-soft: #e7f7ff;
    --yellow: #fff2bf;
    --orange: #ffb36b;
    --orange-soft: #fff1e5;
    --ink: #26384f;
    --muted: #6a7890;
    --line: #e6edf5;
    --white: #ffffff;
    --shadow: 0 18px 50px rgba(70, 118, 156, .14);
    --radius: 28px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
    margin: 0;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
    color: var(--ink);
    background: linear-gradient(180deg, #f7fcff 0%, #fffaf0 52%, #ffffff 100%);
    line-height: 1.75;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
.container { width: min(1160px, calc(100% - 32px)); margin: 0 auto; }
.site-header {
    position: sticky;
    top: 0;
    z-index: 30;
    background: rgba(255, 255, 255, .9);
    backdrop-filter: blur(18px);
    border-bottom: 1px solid rgba(210, 225, 239, .8);
}
.header-inner { min-height: 78px; display: flex; align-items: center; justify-content: space-between; gap: 22px; }
.brand, .footer-brand { display: inline-flex; align-items: center; gap: 10px; font-weight: 900; }
.brand-mark {
    width: 54px;
    height: 54px;
    border-radius: 20px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: #1f5f8a;
    background: radial-gradient(circle at 35% 28%, #ffffff 0 18%, transparent 19%), linear-gradient(135deg, var(--yellow), var(--blue));
    box-shadow: 0 12px 28px rgba(76, 158, 210, .24);
    letter-spacing: -.05em;
}
.brand-text { font-size: 1.02rem; }
.site-nav { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.site-nav a {
    padding: 10px 14px;
    border-radius: 999px;
    color: #40556e;
    font-size: .95rem;
}
.site-nav a:hover, .site-nav a.active { background: var(--blue-soft); color: #1d6d9d; }
.nav-toggle { display: none; border: 0; border-radius: 16px; padding: 10px 14px; background: var(--blue-soft); color: #1d6d9d; font-weight: 800; }
.hero { padding: 58px 0 42px; overflow: hidden; }
.hero-grid { display: grid; grid-template-columns: 1.06fr .94fr; align-items: center; gap: 42px; }
.eyebrow { display: inline-flex; align-items: center; gap: 8px; padding: 8px 14px; border-radius: 999px; background: var(--yellow); color: #80521e; font-weight: 800; font-size: .92rem; }
h1, h2, h3 { line-height: 1.24; margin: 0 0 14px; }
h1 { font-size: clamp(2.2rem, 5vw, 4.5rem); letter-spacing: -.06em; }
h2 { font-size: clamp(1.65rem, 3vw, 2.55rem); letter-spacing: -.035em; }
h3 { font-size: 1.16rem; }
p { margin: 0 0 16px; color: var(--muted); }
.lead { font-size: 1.12rem; color: #526278; max-width: 720px; }
.hero-actions { display: flex; align-items: center; flex-wrap: wrap; gap: 14px; margin: 28px 0; }
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 48px;
    padding: 12px 20px;
    border-radius: 999px;
    font-weight: 900;
    border: 2px solid transparent;
    transition: transform .2s ease, box-shadow .2s ease, background .2s ease;
}
.btn:hover { transform: translateY(-2px); box-shadow: 0 12px 24px rgba(72, 139, 190, .18); }
.btn-primary { background: #2488c6; color: #fff; }
.btn-soft { background: #fff; color: #2488c6; border-color: #cdefff; }
.hero-note { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 12px; margin-top: 22px; }
.note-pill { border-radius: 20px; background: rgba(255,255,255,.78); border: 1px solid var(--line); padding: 14px; font-weight: 800; color: #40556e; }
.hero-visual { position: relative; }
.hero-visual::before { content: ""; position: absolute; inset: -24px; border-radius: 44px; background: linear-gradient(135deg, #e7f7ff, #fff2bf); transform: rotate(-3deg); z-index: -1; }
.hero-visual img, .visual-card img { width: 100%; border-radius: 34px; box-shadow: var(--shadow); }
.section { padding: 64px 0; }
.section-alt { background: rgba(231, 247, 255, .56); }
.section-head { display: flex; justify-content: space-between; align-items: end; gap: 28px; margin-bottom: 28px; }
.section-head p { max-width: 650px; }
.grid { display: grid; gap: 20px; }
.grid-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.card {
    background: rgba(255,255,255,.92);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    padding: 24px;
    box-shadow: 0 12px 34px rgba(83, 126, 159, .08);
}
.card.highlight { background: linear-gradient(135deg, #ffffff, #fff8dc); }
.card-blue { background: linear-gradient(135deg, #ffffff, #e8f8ff); }
.card-orange { background: linear-gradient(135deg, #ffffff, #fff0e5); }
.icon {
    width: 56px; height: 56px; border-radius: 20px; display: inline-flex; align-items: center; justify-content: center;
    background: var(--blue-soft); color: #2177ac; font-weight: 900; margin-bottom: 14px;
}
.tag-row { display: flex; flex-wrap: wrap; gap: 8px; margin: 16px 0 0; }
.tag { border-radius: 999px; padding: 6px 10px; background: var(--orange-soft); color: #9b5822; font-size: .86rem; font-weight: 800; }
.tag.blue { background: var(--blue-soft); color: #1d6d9d; }
.media-card { overflow: hidden; padding: 0; }
.media-card img { border-radius: var(--radius) var(--radius) 0 0; min-height: 180px; object-fit: cover; }
.media-card .card-body { padding: 22px; }
.rating { display: inline-flex; padding: 6px 10px; border-radius: 999px; background: #f2fbff; color: #1e77a8; font-weight: 900; font-size: .85rem; }
.timeline { display: grid; gap: 18px; }
.step { display: grid; grid-template-columns: 54px 1fr; gap: 16px; align-items: start; }
.step-num { width: 54px; height: 54px; border-radius: 20px; background: var(--yellow); color: #885b1c; display: flex; align-items: center; justify-content: center; font-weight: 900; }
.soft-panel {
    border-radius: 34px;
    padding: 28px;
    background: linear-gradient(135deg, #ffffff, #e9f8ff 58%, #fff2bf);
    border: 1px solid var(--line);
    box-shadow: var(--shadow);
}
.check-list { list-style: none; padding: 0; margin: 0; display: grid; gap: 12px; }
.check-list li { position: relative; padding-left: 34px; color: #526278; }
.check-list li::before { content: "✓"; position: absolute; left: 0; top: 0; width: 24px; height: 24px; border-radius: 50%; background: var(--blue-soft); color: #2076a8; display: inline-flex; align-items: center; justify-content: center; font-weight: 900; }
.faq { display: grid; gap: 14px; }
details { background: #fff; border: 1px solid var(--line); border-radius: 22px; padding: 18px 20px; }
summary { cursor: pointer; font-weight: 900; color: #334861; }
details p { margin-top: 12px; }
.page-hero { padding: 58px 0 28px; }
.page-hero .soft-panel { display: grid; grid-template-columns: 1.15fr .85fr; align-items: center; gap: 28px; }
.breadcrumb { display: flex; gap: 8px; flex-wrap: wrap; color: #6e7f92; font-size: .92rem; margin-bottom: 18px; }
.breadcrumb a { color: #247fac; font-weight: 800; }
.table-like { display: grid; gap: 12px; }
.table-row { display: grid; grid-template-columns: 150px 1fr 170px; gap: 14px; align-items: center; padding: 16px; border: 1px solid var(--line); border-radius: 20px; background: rgba(255,255,255,.88); }
.table-row strong { color: #293d55; }
.form { display: grid; gap: 14px; }
.form label { font-weight: 900; color: #334861; }
.form input, .form textarea, .form select {
    width: 100%; border: 1px solid #dbe8f3; border-radius: 16px; padding: 13px 14px; font: inherit; background: #fff; color: var(--ink);
}
.form textarea { min-height: 132px; resize: vertical; }
.notice { border-left: 6px solid var(--orange); background: #fffaf1; border-radius: 20px; padding: 18px; color: #6c5534; }
.video-thumb { position: relative; }
.video-thumb::after { content: "▶"; position: absolute; inset: auto 18px 18px auto; width: 48px; height: 48px; border-radius: 50%; background: rgba(255,255,255,.95); color: #227cac; display: flex; align-items: center; justify-content: center; font-weight: 900; box-shadow: 0 8px 18px rgba(0,0,0,.12); }
.site-footer { padding: 46px 0; background: #26384f; color: #fff; }
.site-footer p, .site-footer a { color: rgba(255,255,255,.76); }
.site-footer h2 { font-size: 1.05rem; color: #fff; }
.footer-grid { display: grid; grid-template-columns: 1.5fr .8fr 1fr; gap: 32px; }
.site-footer a { display: block; margin: 8px 0; }
.footer-brand { color: #fff !important; font-size: 1.2rem; margin-bottom: 10px; }
.update-date { color: #fff3bf !important; font-weight: 800; }
#current-host { display: inline-flex; max-width: 100%; word-break: break-all; border-radius: 14px; padding: 10px 12px; background: rgba(255,255,255,.1); color: #fff; }
@media (max-width: 920px) {
    .hero-grid, .page-hero .soft-panel, .grid-4, .grid-3, .grid-2, .footer-grid { grid-template-columns: 1fr; }
    .section-head { display: block; }
    .hero-note { grid-template-columns: 1fr; }
    .table-row { grid-template-columns: 1fr; }
    .site-nav { display: none; position: absolute; left: 16px; right: 16px; top: 76px; padding: 16px; border-radius: 24px; background: #fff; box-shadow: var(--shadow); border: 1px solid var(--line); }
    .site-nav.open { display: grid; grid-template-columns: 1fr 1fr; }
    .nav-toggle { display: inline-flex; }
}
@media (max-width: 560px) {
    .container { width: min(100% - 22px, 1160px); }
    .hero, .section, .page-hero { padding: 38px 0; }
    .card, .soft-panel { padding: 20px; border-radius: 24px; }
    .site-nav.open { grid-template-columns: 1fr; }
    .brand-text { display: none; }
    h1 { font-size: 2.15rem; }
}