:root {
    --mist: #F4FAFC;
    --deep-bg: #FFFFFF;
    --content: #FFFFFF;
    --secondary: #E7F3F6;
    --title: #0E3A46;
    --text: #24505A;
    --muted: #4A7380;
    --soft: #7A9AA4;
    --sea: #1A7F8F;
    --bright-sea: #2BB3C4;
    --deep-sea: #0F5B68;
    --pale-sea: #D7EEF2;
    --line: rgba(26,127,143,0.16);
    --shadow: 0 14px 34px rgba(14,58,70,0.08);
    --header-h: 124px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--mist); color: var(--text); font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif; font-size: 16px; line-height: 1.78; overflow-x: hidden; }
body.locked { overflow: hidden; }
a { color: inherit; text-decoration: none; }
a, button { -webkit-tap-highlight-color: transparent; }
button { font: inherit; }
img { display: block; max-width: 100%; }
.wrap { width: min(1180px, calc(100% - 32px)); margin: 0 auto; }
.site-header { position: fixed; inset: 0 0 auto; z-index: 70; }
.mist-line { height: 20px; background: var(--title); color: #fff; font-size: 12px; line-height: 20px; }
.mist-inner { display: flex; align-items: center; justify-content: space-between; height: 20px; }
.mist-brand { letter-spacing: .08em; white-space: nowrap; }
.text-control { border: 0; padding: 0 4px; min-width: 44px; height: 20px; background: transparent; color: #fff; cursor: pointer; text-align: right; }
.dock-bar { height: 62px; background: #fff; border-bottom: 1px solid var(--line); }
.dock-inner { display: grid; grid-template-columns: 1fr auto 1fr; align-items: center; height: 62px; gap: 16px; }
.brand-link { justify-self: start; display: flex; align-items: center; min-height: 44px; max-width: 250px; }
.brand-logo { height: 34px; width: auto; max-width: 220px; object-fit: contain; object-position: left center; }
.brand-wordmark { font-size: 22px; font-weight: 800; color: var(--title); letter-spacing: .04em; }
.dock-menu, .dock-app { min-height: 44px; padding: 9px 18px; border-radius: 10px; font-weight: 700; cursor: pointer; }
.dock-menu { border: 1px solid var(--line); background: var(--secondary); color: var(--deep-sea); }
.dock-app { justify-self: end; display: inline-flex; align-items: center; background: linear-gradient(135deg,#2BB3C4 0%,#1A7F8F 55%,#0F5B68 100%); color: #fff; }
.shell-tabs { height: 42px; background: var(--pale-sea); border-bottom: 1px solid var(--line); }
.shell-inner { display: flex; align-items: center; gap: 8px; height: 42px; overflow: hidden; }
.shell-link { display: inline-flex; align-items: center; min-height: 30px; padding: 3px 11px; border-radius: 8px; color: var(--deep-sea); font-size: 14px; font-weight: 700; }
.shell-link.is-current { background: var(--sea); color: #fff; }
.site-main { min-height: 65vh; padding-top: calc(var(--header-h) + 26px); }
.hero, .page-hero { margin-bottom: 32px; }
.media-slot { margin: 0; width: 100%; min-height: 180px; display: flex; align-items: center; justify-content: center; border-radius: 18px; background: linear-gradient(145deg, #eaf6f8, #fff); border: 1px solid var(--line); overflow: hidden; }
.media-slot img { width: 100%; height: 100%; object-fit: contain; object-position: center; }
.hero-media { max-height: 300px; min-height: min(300px, 38vw); }
.hero-media img { max-height: 300px; }
.section-media { height: 220px; }
.section-media.tall { height: 420px; }
.section-media.compact { height: 180px; }

.slot-title { color: var(--title); font-size: clamp(26px, 5vw, 42px); font-weight: 800; letter-spacing: .08em; }
.app-icon-wrap { width: 64px; height: 64px; display: inline-flex; align-items: center; justify-content: center; margin-bottom: 14px; border-radius: 14px; background: #fff; border: 1px solid var(--line); box-shadow: var(--shadow); overflow: hidden; }
.app-icon-wrap img { width: 64px; height: 64px; object-fit: contain; object-position: center; }
.eyebrow { display: inline-block; color: var(--sea); font-size: 13px; font-weight: 800; letter-spacing: .16em; text-transform: uppercase; }
h1, h2, h3 { color: var(--title); line-height: 1.32; margin-top: 0; }
h1 { font-size: clamp(28px, 4vw, 32px); margin-bottom: 14px; }
h2 { font-size: clamp(22px, 3vw, 27px); margin-bottom: 12px; }
h3 { font-size: 18px; margin-bottom: 7px; }
p { margin: 0 0 1em; }
.lede { font-size: 17px; color: var(--muted); max-width: 820px; }
.hero-copy, .page-hero-copy { padding: 24px 0 0; }
.actions { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 20px; }
.button-primary, .button-secondary { min-height: 44px; display: inline-flex; align-items: center; justify-content: center; padding: 9px 18px; border-radius: 10px; font-weight: 800; }
.button-primary { background: linear-gradient(135deg,#2BB3C4 0%,#1A7F8F 55%,#0F5B68 100%); color: #fff; }
.button-secondary { background: #fff; color: var(--deep-sea); border: 1px solid var(--line); }
.content-section { padding: 32px 0; }
.content-section + .content-section { border-top: 1px solid var(--line); }
.section-head { display: flex; justify-content: space-between; align-items: end; gap: 24px; margin-bottom: 18px; }
.section-head p { max-width: 650px; color: var(--muted); margin: 0; }
.step-stack { display: grid; gap: 14px; }
.step-row { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; }
.step-link { min-height: 122px; padding: 18px; background: #fff; border: 1px solid var(--line); border-radius: 14px; box-shadow: 0 8px 20px rgba(14,58,70,.04); }
.step-link span { display: inline-block; margin-bottom: 10px; padding: 2px 8px; border-radius: 7px; color: #fff; background: var(--bright-sea); font-size: 12px; font-weight: 800; }
.step-row.lower .step-link span { background: var(--deep-sea); }
.step-link strong { display: block; color: var(--title); margin-bottom: 5px; }
.step-link small { color: var(--muted); font-size: 14px; line-height: 1.65; }
.number-list { display: grid; grid-template-columns: 1.1fr 1fr; gap: 24px; align-items: start; }
.number-items { display: grid; gap: 10px; }
.number-item { display: grid; grid-template-columns: 48px 1fr auto; gap: 12px; align-items: center; padding: 14px 16px; border-radius: 12px; background: #fff; border: 1px solid var(--line); }
.number-item b { color: var(--bright-sea); font-size: 18px; }
.number-item strong { color: var(--title); }
.number-item a { color: var(--sea); font-weight: 800; }
.card-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.card { background: #fff; border: 1px solid var(--line); border-radius: 16px; padding: 18px; box-shadow: var(--shadow); }
.card .media-slot { margin-bottom: 14px; box-shadow: none; }
.card p:last-child { margin-bottom: 0; }
.card-link { color: var(--sea); font-weight: 800; }
.info-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; }
.info-box { padding: 22px; background: #fff; border: 1px solid var(--line); border-radius: 16px; }
.info-box.alt { background: var(--secondary); }
.info-box p:last-child { margin-bottom: 0; }
.album-list { display: grid; gap: 12px; }
.album-row { display: grid; grid-template-columns: 120px 1fr auto; gap: 18px; align-items: center; padding: 15px 18px; background: #fff; border: 1px solid var(--line); border-radius: 14px; }
.album-row b { color: var(--bright-sea); font-size: 20px; }
.gallery-strip { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; }
.gallery-tile { background: #fff; border: 1px solid var(--line); border-radius: 14px; overflow: hidden; }
.gallery-tile .media-slot { border: 0; border-radius: 0; height: 150px; min-height: 150px; }
.gallery-tile div { padding: 14px; }
.path-list { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.path-card { padding: 22px; border-radius: 16px; background: var(--secondary); border: 1px solid var(--line); }
.path-card a { color: var(--deep-sea); font-weight: 800; }
.split-section { display: grid; grid-template-columns: minmax(0, .9fr) minmax(0, 1.1fr); gap: 28px; align-items: center; }
.prose { background: #fff; border: 1px solid var(--line); border-radius: 18px; padding: clamp(22px, 4vw, 38px); box-shadow: var(--shadow); }
.prose h2 { margin-top: 1.5em; }
.prose h2:first-child { margin-top: 0; }
.prose ul, .prose ol { padding-left: 1.4em; }
.prose li { margin-bottom: .7em; }
.index-list { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px; }
.index-entry { padding: 20px; background: #fff; border-left: 4px solid var(--bright-sea); border-radius: 0 14px 14px 0; box-shadow: var(--shadow); }
.longform { max-width: 850px; margin: 0 auto; }
.longform article { margin-bottom: 22px; padding: 22px; background: #fff; border: 1px solid var(--line); border-radius: 14px; }
.note-list { display: grid; gap: 12px; }
.note-item { padding: 18px 20px; background: #fff; border: 1px solid var(--line); border-radius: 14px; }
.note-item time, .tag { color: var(--sea); font-size: 13px; font-weight: 800; }
.window-layout { display: grid; grid-template-columns: repeat(12, 1fr); gap: 16px; }
.window-pane { grid-column: span 6; padding: 22px; background: #fff; border: 1px solid var(--line); border-radius: 16px; }
.window-pane.wide { grid-column: span 12; }
.chapter-list { counter-reset: chapter; display: grid; gap: 16px; }
.chapter { counter-increment: chapter; background: #fff; border: 1px solid var(--line); border-radius: 16px; padding: 22px; }
.chapter h2::before { content: "0" counter(chapter) " "; color: var(--bright-sea); }
.rule-block { margin-bottom: 16px; padding: 20px 22px; background: #fff; border: 1px solid var(--line); border-radius: 14px; }
.rule-block h2 { font-size: 21px; }
.faq-list { display: grid; gap: 12px; }
.faq-item { padding: 20px 22px; background: #fff; border: 1px solid var(--line); border-radius: 14px; }
.faq-item h2 { font-size: 19px; }
.form-look { display: grid; gap: 14px; padding: 22px; border-radius: 16px; background: var(--secondary); border: 1px solid var(--line); }
.form-row { min-height: 48px; padding: 12px 14px; border-radius: 10px; background: #fff; color: var(--muted); border: 1px solid var(--line); }
.site-footer { margin-top: 54px; background: var(--title); color: #D4E8EC; }
.footer-top { display: grid; grid-template-columns: 1.1fr 2fr; gap: 48px; padding: 46px 0 36px; }
.footer-brand-link { display: inline-flex; align-items: center; gap: 12px; color: #fff; margin-bottom: 16px; }
.footer-logo { height: 32px; width: auto; max-width: 190px; object-fit: contain; }
.footer-brand-link span { display: grid; line-height: 1.2; }
.footer-brand-link small { color: #9fc8cf; letter-spacing: .16em; margin-top: 4px; }
.footer-brand p { max-width: 400px; color: #b8d6db; }
.footer-groups { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.footer-groups h2 { color: #fff; font-size: 15px; margin-bottom: 10px; }
.footer-groups a { display: block; padding: 4px 0; color: #c7e0e4; font-size: 14px; }
.footer-bottom { padding: 16px 0 22px; border-top: 1px solid rgba(255,255,255,.12); display: flex; justify-content: space-between; gap: 16px; color: #9fc8cf; font-size: 13px; }
.tide-drawer { position: fixed; top: 0; right: 0; z-index: 100; width: min(410px, 86vw); height: 100dvh; padding: 18px; background: var(--mist); transform: translateX(105%); transition: transform .28s ease, visibility .28s; visibility: hidden; pointer-events: none; overflow-y: auto; box-shadow: -20px 0 55px rgba(14,58,70,.18); }
.drawer-open .tide-drawer { transform: translateX(0); visibility: visible; pointer-events: auto; }
.drawer-head { display: flex; align-items: center; justify-content: space-between; gap: 16px; margin-bottom: 14px; }
.drawer-brand { display: flex; align-items: center; gap: 10px; }
.drawer-logo { max-width: 130px; height: 30px; object-fit: contain; }
.drawer-brand span { display: grid; line-height: 1.15; }
.drawer-brand small { color: var(--soft); font-size: 10px; letter-spacing: .12em; }
.icon-button { width: 44px; height: 44px; border: 1px solid var(--line); border-radius: 10px; background: #fff; color: var(--title); font-size: 25px; cursor: pointer; }
.drawer-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; align-items: start; }
.wave-card { padding: 14px; border: 1px solid var(--line); border-radius: 16px; background: #fff; box-shadow: 0 8px 20px rgba(14,58,70,.05); }
.wave-card:nth-child(2), .wave-card:nth-child(4) { margin-top: 18px; }
.wave-card h2 { font-size: 16px; margin-bottom: 8px; }
.wave-card a { display: block; padding: 10px 0; border-top: 1px solid var(--line); }
.wave-card a:first-of-type { border-top: 0; }
.wave-card strong { display: block; color: var(--title); font-size: 14px; }
.wave-card span { display: block; color: var(--muted); font-size: 11px; line-height: 1.55; margin-top: 2px; }
.search-layer { position: fixed; left: 0; right: 0; top: 82px; z-index: 95; visibility: hidden; pointer-events: none; opacity: 0; transition: opacity .2s, visibility .2s; }
.search-open .search-layer { visibility: visible; pointer-events: auto; opacity: 1; }
.search-card { width: min(760px, calc(100% - 32px)); margin: 0 auto; padding: 24px; border-radius: 0 0 18px 18px; background: #fff; border: 1px solid var(--line); box-shadow: var(--shadow); }
.search-head { display: flex; justify-content: space-between; gap: 20px; }
.search-head h2 { margin-bottom: 14px; }
.search-faux { min-height: 64px; padding: 12px 14px; border-radius: 12px; background: var(--secondary); border: 1px solid var(--line); display: grid; align-content: center; color: var(--title); }
.search-faux small { color: var(--muted); }
.search-links { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 14px; }
.search-links a { min-height: 44px; display: inline-flex; align-items: center; padding: 8px 13px; border-radius: 9px; background: var(--pale-sea); color: var(--deep-sea); font-weight: 800; }
.page-overlay { position: fixed; inset: 0; z-index: 90; background: rgba(14,58,70,.24); opacity: 0; visibility: hidden; pointer-events: none; transition: .2s; }
.page-overlay.is-active { opacity: 1; visibility: visible; pointer-events: auto; }
.mobile-bottom { display: none; }
a:hover, button:hover { filter: brightness(.97); }
a:focus-visible, button:focus-visible { outline: 3px solid rgba(43,179,196,.45); outline-offset: 3px; }
@media (max-width: 900px) {
    .card-grid { grid-template-columns: repeat(2, 1fr); }
    .step-row { grid-template-columns: repeat(2, 1fr); }
    .number-list, .split-section, .footer-top { grid-template-columns: 1fr; }
    .gallery-strip { grid-template-columns: repeat(2, 1fr); }
    .path-list { grid-template-columns: 1fr; }
    .footer-groups { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 680px) {
    :root { --header-h: 82px; }
    body { padding-bottom: calc(58px + env(safe-area-inset-bottom)); }
    .shell-tabs { display: none; }
    .dock-inner { grid-template-columns: minmax(0, 1fr) auto auto; gap: 6px; }
    .brand-link { max-width: 130px; overflow: hidden; }
    .brand-logo { max-width: 126px; height: 30px; }
    .brand-wordmark { font-size: 18px; white-space: nowrap; }
    .dock-menu, .dock-app { min-height: 44px; padding: 8px 10px; font-size: 13px; white-space: nowrap; }
    .site-main { padding-top: calc(var(--header-h) + 20px); }
    .hero-media { min-height: 190px; }
    .step-row, .card-grid, .info-grid, .index-list, .gallery-strip { grid-template-columns: 1fr; }
    .number-item { grid-template-columns: 42px 1fr; }
    .number-item a { grid-column: 2; }
    .album-row { grid-template-columns: 54px 1fr; }
    .album-row a { grid-column: 2; }
    .window-pane { grid-column: span 12; }
    .drawer-grid { grid-template-columns: 1fr 1fr; gap: 9px; }
    .wave-card { padding: 11px; }
    .wave-card:nth-child(2), .wave-card:nth-child(4) { margin-top: 12px; }
    .search-layer { top: 82px; }
    .search-card { width: calc(100% - 24px); background: var(--pale-sea); border-radius: 0 0 16px 16px; padding: 16px; }
    .footer-bottom { flex-direction: column; }
    .mobile-bottom { position: fixed; left: 0; right: 0; bottom: 0; z-index: 60; height: calc(50px + env(safe-area-inset-bottom)); padding-bottom: env(safe-area-inset-bottom); display: grid; grid-template-columns: repeat(5, 1fr); background: #fff; border-top: 1px solid var(--line); }
    .mobile-bottom a { min-height: 50px; display: flex; align-items: center; justify-content: center; font-size: 13px; color: var(--deep-sea); }
    .mobile-bottom a.is-current { background: var(--sea); color: #fff; font-weight: 800; }
    .drawer-open .mobile-bottom, .search-open .mobile-bottom { z-index: 40; }
}
@media (max-width: 430px) {
    .mist-brand { font-size: 11px; }
    .drawer-grid { grid-template-columns: 1fr; }
    .wave-card:nth-child(2), .wave-card:nth-child(4) { margin-top: 0; }
    .footer-groups { grid-template-columns: 1fr 1fr; }
}