:root {
  color-scheme: light;
  --ink: #102a31;
  --muted: #566d73;
  --teal: #087783;
  --teal-dark: #073a43;
  --teal-soft: #e8f5f4;
  --gold: #e9bc53;
  --cream: #fbfaf5;
  --surface: #ffffff;
  --line: #d9e5e5;
  --shadow: 0 24px 70px rgba(14, 49, 57, 0.14);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--cream);
  color: var(--ink);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.55;
}
html[lang="zh-CN"] body { font-family: "Microsoft YaHei", "PingFang SC", "Noto Sans SC", Inter, ui-sans-serif, system-ui, sans-serif; }
a { color: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }
.shell { width: min(1160px, calc(100% - 40px)); margin-inline: auto; }
.skip-link { position: fixed; top: 10px; left: 10px; z-index: 100; transform: translateY(-150%); padding: 10px 14px; background: #fff; border-radius: 8px; }
.skip-link:focus { transform: translateY(0); }

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  border-bottom: 1px solid rgba(217, 229, 229, 0.8);
  background: rgba(251, 250, 245, 0.9);
  backdrop-filter: blur(14px);
}
.header-inner { min-height: 76px; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.logo { display: inline-flex; align-items: center; gap: 10px; text-decoration: none; font-size: 1rem; letter-spacing: -0.02em; }
.logo-mark { display: grid; place-items: center; width: 42px; height: 42px; border-radius: 13px; background: var(--gold); color: var(--teal-dark); font-weight: 900; letter-spacing: -0.08em; }
.site-nav { display: flex; align-items: center; gap: 28px; }
.site-nav > a:not(.button) { color: #35545b; text-decoration: none; font-size: 0.92rem; font-weight: 650; }
.site-nav > a:not(.button):hover { color: var(--teal); }
.language-switcher { display: inline-flex; flex: 0 0 auto; overflow: hidden; border: 1px solid #bfd0d2; border-radius: 999px; padding: 3px; background: rgba(255,255,255,.76); }
.language-switcher a { display: inline-flex; min-height: 30px; align-items: center; justify-content: center; border-radius: 999px; padding: 0 10px; color: #4b666c; text-decoration: none; font-size: .72rem; font-weight: 850; white-space: nowrap; }
.language-switcher a.active { background: var(--teal-dark); color: #fff; box-shadow: 0 3px 10px rgba(7,58,67,.18); }
.language-switcher a:focus-visible { outline: 3px solid rgba(8,119,131,.25); outline-offset: 2px; }
.menu-button { display: none; border: 1px solid var(--line); border-radius: 10px; padding: 9px 12px; background: #fff; color: var(--ink); font-weight: 750; }

.button { display: inline-flex; min-height: 50px; align-items: center; justify-content: center; border: 1px solid var(--teal); border-radius: 12px; padding: 0 20px; background: var(--teal); color: #fff; text-decoration: none; font-weight: 800; box-shadow: 0 10px 24px rgba(8, 119, 131, 0.2); transition: transform 160ms ease, background 160ms ease; }
.button:hover { transform: translateY(-2px); background: #056572; }
.button-small { min-height: 42px; padding-inline: 16px; font-size: 0.9rem; }
.button-light { border-color: #fff; background: #fff; color: var(--teal-dark); box-shadow: 0 10px 28px rgba(0, 0, 0, 0.16); }
.button-light:hover { background: #eefafa; }
.button-outline { border-color: #8eb9bd; background: transparent; color: var(--teal-dark); box-shadow: none; }
.button-outline:hover { background: var(--teal-soft); }
.button:disabled { cursor: not-allowed; opacity: .55; transform: none; }
.text-link { color: var(--teal-dark); font-weight: 800; text-decoration: none; }
.hidden { display: none !important; }

.hero { position: relative; overflow: hidden; padding: 96px 0 86px; background: radial-gradient(circle at 87% 10%, rgba(8, 119, 131, 0.12), transparent 30rem); }
.hero::after { content: ""; position: absolute; right: -130px; bottom: -190px; width: 420px; height: 420px; border: 1px solid rgba(8,119,131,.14); border-radius: 50%; box-shadow: 0 0 0 60px rgba(8,119,131,.035), 0 0 0 130px rgba(8,119,131,.025); }
.hero-grid { position: relative; z-index: 1; display: grid; grid-template-columns: minmax(0, 1fr) minmax(420px, .9fr); align-items: center; gap: 72px; }
.eyebrow { margin: 0 0 14px; color: var(--teal); font-size: .78rem; font-weight: 900; letter-spacing: .14em; text-transform: uppercase; }
.hero h1 { max-width: 720px; margin: 0; font-size: clamp(3rem, 5.8vw, 5.35rem); line-height: .98; letter-spacing: -.065em; }
.hero-lead { max-width: 650px; margin: 28px 0 0; color: var(--muted); font-size: 1.16rem; }
.hero-actions { display: flex; align-items: center; gap: 24px; margin-top: 34px; }
.hero-points { display: flex; flex-wrap: wrap; gap: 10px 24px; margin: 34px 0 0; padding: 0; list-style: none; color: #39565d; font-size: .88rem; font-weight: 700; }
.hero-points li::before { content: "✓"; display: inline-grid; place-items: center; width: 20px; height: 20px; margin-right: 7px; border-radius: 50%; background: var(--teal-soft); color: var(--teal); }

.product-preview { transform: rotate(1.25deg); border: 1px solid rgba(8, 119, 131, .18); border-radius: 22px; padding: 18px; background: rgba(255,255,255,.88); box-shadow: var(--shadow); }
.preview-topbar { display: grid; grid-template-columns: auto 1fr auto; align-items: center; gap: 11px; padding: 5px 2px 17px; border-bottom: 1px solid var(--line); font-size: .82rem; font-weight: 800; }
.preview-logo { display: grid; place-items: center; width: 30px; height: 30px; border-radius: 9px; background: var(--gold); font-size: .68rem; }
.online-dot { color: #277958; font-size: .7rem; }
.online-dot::before { content: ""; display: inline-block; width: 7px; height: 7px; margin-right: 5px; border-radius: 50%; background: #32a071; }
.preview-metrics { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin: 16px 0; }
.preview-metrics article { display: grid; gap: 2px; min-height: 116px; padding: 16px; border: 1px solid #dbe9e9; border-radius: 15px; background: #f6fbfb; }
.preview-metrics span { color: #4e696e; font-size: .75rem; font-weight: 750; }
.preview-metrics strong { font-size: 2rem; line-height: 1.1; }
.preview-metrics small { color: var(--muted); font-size: .68rem; }
.preview-metrics .preview-alert { border-color: #f0d6a4; background: #fff8e9; }
.preview-list { overflow: hidden; border: 1px solid var(--line); border-radius: 15px; }
.preview-list-head { display: flex; justify-content: space-between; padding: 13px 14px; background: #f2f7f7; color: var(--muted); font-size: .7rem; }
.preview-row { display: grid; grid-template-columns: 62px 1fr; gap: 12px; align-items: center; padding: 13px 14px; border-top: 1px solid #e8eeee; }
.preview-row div { display: grid; gap: 2px; }
.preview-row strong { font-size: .76rem; }
.preview-row small { color: var(--muted); font-size: .65rem; }
.date-chip { border-radius: 8px; padding: 7px 5px; text-align: center; font-size: .65rem; font-weight: 900; }
.date-chip.urgent { background: #ffe5e1; color: #a83225; }
.date-chip.warning { background: #fff1c9; color: #8b5a04; }
.date-chip.good { background: #e3f4e9; color: #26714a; }

.proof-strip { border-block: 1px solid var(--line); background: #fff; }
.proof-grid { display: grid; grid-template-columns: repeat(3, 1fr); }
.proof-grid div { display: grid; gap: 4px; padding: 27px 30px; border-left: 1px solid var(--line); }
.proof-grid div:last-child { border-right: 1px solid var(--line); }
.proof-grid strong { font-size: .92rem; }
.proof-grid span { color: var(--muted); font-size: .8rem; }

.section { padding-top: 112px; padding-bottom: 112px; }
.section-heading { max-width: 720px; margin-bottom: 50px; }
.section-heading.compact { margin-bottom: 35px; }
.section-heading h2, .community-section h2, .cta-card h2 { margin: 0; font-size: clamp(2.25rem, 4.5vw, 4rem); line-height: 1.04; letter-spacing: -.05em; }
.section-heading > p:last-child { max-width: 650px; margin: 20px 0 0; color: var(--muted); }
.feature-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.feature-card { min-height: 275px; padding: 24px; border: 1px solid var(--line); border-radius: 18px; background: #fff; transition: transform 180ms ease, box-shadow 180ms ease; }
.feature-card:hover { transform: translateY(-5px); box-shadow: 0 18px 46px rgba(14,49,57,.1); }
.feature-number { color: var(--teal); font-size: .76rem; font-weight: 900; letter-spacing: .1em; }
.feature-card h3 { margin: 70px 0 12px; font-size: 1.3rem; letter-spacing: -.025em; }
.feature-card p { margin: 0; color: var(--muted); font-size: .92rem; }

.community-section { padding: 112px 0; overflow: hidden; background: var(--teal-dark); color: #fff; }
.community-grid { display: grid; grid-template-columns: .85fr 1fr; align-items: center; gap: 80px; }
.community-grid > div:first-child > p:not(.eyebrow) { margin: 24px 0 32px; color: #c4d8dc; }
.eyebrow-light { color: #79d5d9; }
.community-calendar { padding: 24px; border: 1px solid rgba(255,255,255,.18); border-radius: 22px; background: rgba(255,255,255,.08); box-shadow: 0 28px 70px rgba(0,0,0,.2); }
.calendar-head { display: flex; align-items: baseline; justify-content: space-between; margin-bottom: 20px; }
.calendar-head strong { font-size: 1.4rem; }
.calendar-head span { color: #a9c6ca; font-size: .75rem; }
.week-labels, .calendar-grid { display: grid; grid-template-columns: repeat(7, 1fr); gap: 7px; }
.week-labels span { padding: 5px; color: #91b2b7; text-align: center; font-size: .66rem; font-weight: 800; }
.calendar-grid > span { position: relative; display: grid; place-items: start; min-height: 54px; border: 1px solid rgba(255,255,255,.1); border-radius: 9px; padding: 7px; color: #dfecee; font-size: .7rem; }
.calendar-grid > span.empty { border-color: transparent; }
.calendar-grid small { position: absolute; right: 6px; bottom: 5px; display: grid; place-items: center; min-width: 20px; height: 20px; border-radius: 10px; background: rgba(255,255,255,.85); color: var(--teal-dark); font-size: .55rem; font-weight: 900; }
.calendar-grid .level-1 { background: rgba(66, 192, 194, .19); }
.calendar-grid .level-2 { background: rgba(66, 192, 194, .38); }
.calendar-grid .level-3 { background: rgba(66, 192, 194, .62); }
.calendar-grid .today { outline: 2px solid var(--gold); outline-offset: -2px; }
.calendar-grid .today small { width: auto; padding-inline: 6px; background: var(--gold); }
.calendar-legend { display: flex; gap: 18px; margin-top: 18px; color: #b8ced1; font-size: .65rem; }
.calendar-legend span { display: flex; align-items: center; gap: 6px; }
.calendar-legend i { width: 12px; height: 12px; border-radius: 4px; background: rgba(66,192,194,.22); }
.calendar-legend .legend-high { background: rgba(66,192,194,.62); }
.calendar-legend .legend-today { border: 2px solid var(--gold); background: transparent; }

.process-section { display: grid; grid-template-columns: .8fr 1fr; gap: 90px; }
.process-list { margin: 0; padding: 0; list-style: none; }
.process-list li { display: grid; grid-template-columns: 48px 1fr; gap: 20px; padding: 25px 0; border-top: 1px solid var(--line); }
.process-list li:last-child { border-bottom: 1px solid var(--line); }
.process-list li > span { display: grid; place-items: center; width: 42px; height: 42px; border-radius: 50%; background: var(--teal-soft); color: var(--teal); font-weight: 900; }
.process-list h3 { margin: 2px 0 4px; font-size: 1.05rem; }
.process-list p { margin: 0; color: var(--muted); font-size: .9rem; }

.signup-section { padding: 108px 0; background: var(--teal-dark); color: #fff; }
.signup-layout { display: grid; grid-template-columns: minmax(0, .8fr) minmax(480px, 1fr); align-items: start; gap: 80px; }
.signup-intro { position: sticky; top: 112px; }
.signup-intro h2 { margin: 0; font-size: clamp(2.35rem, 4.7vw, 4.2rem); line-height: 1.02; letter-spacing: -.055em; }
.signup-intro > p:not(.eyebrow) { margin: 24px 0; color: #c4d8dc; }
.signup-intro ul { display: grid; gap: 12px; margin: 30px 0 0; padding: 0; list-style: none; color: #d8e8ea; }
.signup-intro li::before { content: "✓"; margin-right: 10px; color: #79d5d9; font-weight: 900; }
.signup-card { border: 1px solid rgba(255,255,255,.14); border-radius: 24px; padding: 30px; background: #fff; color: var(--ink); box-shadow: 0 28px 80px rgba(0,0,0,.25); }
.signup-card-head { display: grid; grid-template-columns: 1fr auto; gap: 24px; align-items: start; margin-bottom: 22px; }
.signup-kicker { margin: 0 0 4px; color: var(--teal); font-size: .72rem; font-weight: 900; letter-spacing: .12em; text-transform: uppercase; }
.signup-card h3 { margin: 0; font-size: 1.55rem; letter-spacing: -.035em; }
.signup-progress { display: flex; gap: 8px; margin: 0; padding: 0; list-style: none; }
.signup-progress li { display: grid; justify-items: center; gap: 3px; color: #819397; font-size: .62rem; font-weight: 800; }
.signup-progress span { display: grid; place-items: center; width: 30px; height: 30px; border: 1px solid var(--line); border-radius: 50%; background: #f5f8f8; }
.signup-progress li.active { color: var(--teal); }
.signup-progress li.active span { border-color: var(--teal); background: var(--teal); color: #fff; }
.signup-progress li.complete span { border-color: #2e8a62; background: #e6f7ee; color: #17633a; }
.signup-notice { margin: 0 0 20px; border: 1px solid #cde2e4; border-radius: 12px; padding: 12px 14px; background: #f1f9f9; color: #325b61; font-size: .86rem; }
.signup-notice:empty { display: none; }
.signup-notice.error { border-color: #efc6c0; background: #fff1ef; color: #8b3026; }
.signup-notice.success { border-color: #bee2cc; background: #edf9f2; color: #17633a; }
.signup-form { display: grid; gap: 17px; }
.signup-form > p { margin: 0 0 2px; color: var(--muted); }
.signup-form label:not(.signup-check) { display: grid; gap: 7px; font-size: .87rem; font-weight: 800; }
.signup-form label small { color: var(--muted); font-weight: 500; }
.signup-form input[type="text"],
.signup-form input[type="email"],
.signup-form input[type="tel"],
.signup-form input[type="password"] { width: 100%; min-height: 50px; border: 1px solid #bfd0d2; border-radius: 11px; padding: 0 13px; background: #fff; color: var(--ink); font: inherit; outline: none; }
.signup-form input:focus { border-color: var(--teal); box-shadow: 0 0 0 3px rgba(8,119,131,.13); }
.signup-check { display: grid; grid-template-columns: 20px 1fr; gap: 10px; align-items: start; color: #455f65; font-size: .79rem; }
.signup-check input { width: 18px; height: 18px; margin: 2px 0 0; accent-color: var(--teal); }
.signup-check a { color: var(--teal); font-weight: 800; }
.turnstile-box { min-height: 66px; }
.signup-submit { width: 100%; cursor: pointer; font: inherit; }
.verification-code { height: 64px !important; text-align: center; font-size: 1.65rem !important; font-weight: 900 !important; letter-spacing: .38em; }
.signup-resend { display: grid; gap: 14px; justify-items: start; border-top: 1px solid var(--line); padding-top: 15px; }
.text-button { border: 0; padding: 0; background: transparent; color: var(--teal); cursor: pointer; font: inherit; font-size: .82rem; font-weight: 800; }
#signupResendPanel { display: grid; gap: 12px; width: 100%; }
.signup-success { text-align: center; }
.success-mark { display: grid; place-items: center; width: 58px; height: 58px; margin: 0 auto 16px; border-radius: 50%; background: #e6f7ee; color: #17633a; font-size: 1.7rem; font-weight: 900; }
.signup-success p { color: var(--muted); }
.signup-success dl { overflow: hidden; margin: 22px 0; border: 1px solid var(--line); border-radius: 14px; text-align: left; }
.signup-success dl div { display: grid; grid-template-columns: 110px 1fr; padding: 12px 15px; border-top: 1px solid var(--line); }
.signup-success dl div:first-child { border-top: 0; }
.signup-success dt { color: var(--muted); font-size: .78rem; }
.signup-success dd { margin: 0; font-weight: 900; overflow-wrap: anywhere; }

.cta-section { padding: 0 0 100px; }
.cta-card { display: flex; align-items: center; justify-content: space-between; gap: 40px; border-radius: 24px; padding: 55px; background: linear-gradient(120deg, #075863, #07333c); color: #fff; }
.cta-card h2 { max-width: 700px; font-size: clamp(2rem, 4vw, 3.35rem); }

.site-footer { border-top: 1px solid var(--line); padding: 44px 0; background: #fff; }
.footer-inner { display: grid; grid-template-columns: 1.1fr 1.4fr auto; align-items: center; gap: 24px; }
.logo-footer { font-size: .9rem; }
.logo-footer .logo-mark { width: 36px; height: 36px; border-radius: 11px; font-size: .8rem; }
.site-footer p { margin: 0; color: var(--muted); font-size: .82rem; }
.site-footer nav { display: flex; gap: 18px; }
.site-footer nav a { color: #38565c; font-size: .78rem; font-weight: 700; text-decoration: none; }
.site-footer small { grid-column: 1 / -1; color: #7b8d91; font-size: .7rem; }

.legal-page { padding: 55px 0 90px; }
.legal-header { display: flex; align-items: center; justify-content: space-between; gap: 20px; }
.legal-page > article { max-width: 760px; margin-top: 64px; border: 1px solid var(--line); border-radius: 22px; padding: clamp(28px, 6vw, 58px); background: #fff; box-shadow: var(--shadow); }
.legal-page h1 { margin: 0; font-size: clamp(2.4rem, 6vw, 4.4rem); line-height: 1; letter-spacing: -.055em; }
.legal-page h2 { margin: 34px 0 8px; font-size: 1.2rem; }
.legal-page p { color: var(--muted); }
.legal-page .button { margin-top: 28px; }
.error-page { min-height: 100vh; padding-top: 42px; }
.error-copy { max-width: 760px; padding-top: 110px; }

@media (max-width: 940px) {
  .hero { padding-top: 70px; }
  .hero-grid, .community-grid { grid-template-columns: 1fr; gap: 58px; }
  .hero-copy { max-width: 760px; }
  .product-preview { max-width: 650px; margin-inline: auto; transform: none; }
  .feature-grid { grid-template-columns: 1fr 1fr; }
  .feature-card { min-height: 235px; }
  .process-section { grid-template-columns: 1fr; gap: 15px; }
  .signup-layout { grid-template-columns: 1fr; gap: 45px; }
  .signup-intro { position: static; }
  .footer-inner { grid-template-columns: 1fr 1fr; }
  .site-footer nav { justify-self: end; }
  .site-footer p { grid-column: 1 / -1; grid-row: 2; }
}

@media (max-width: 720px) {
  .shell { width: min(100% - 28px, 1160px); }
  .header-inner { min-height: 66px; }
  .header-inner { gap: 10px; }
  .header-inner .logo > span:last-child { display: none; }
  .language-switcher a { min-height: 28px; padding-inline: 8px; font-size: .67rem; }
  .menu-button { display: inline-flex; }
  .site-nav { position: absolute; top: 66px; left: 14px; right: 14px; display: none; align-items: stretch; gap: 0; border: 1px solid var(--line); border-radius: 14px; padding: 8px; background: #fff; box-shadow: var(--shadow); }
  .site-nav.open { display: grid; }
  .site-nav > a { padding: 12px; }
  .site-nav .button { margin-top: 5px; }
  .hero { padding: 58px 0 64px; }
  .hero h1 { font-size: clamp(2.65rem, 14vw, 4rem); }
  .hero-lead { font-size: 1rem; }
  .hero-actions { align-items: stretch; flex-direction: column; }
  .text-link { text-align: center; }
  .hero-points { display: grid; gap: 10px; }
  .hero-grid { gap: 48px; }
  .preview-metrics { grid-template-columns: 1fr 1fr; }
  .proof-grid { grid-template-columns: 1fr; }
  .proof-grid div, .proof-grid div:last-child { border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); }
  .section, .community-section { padding-top: 78px; padding-bottom: 78px; }
  .signup-section { padding: 78px 0; }
  .feature-grid { grid-template-columns: 1fr; }
  .feature-card { min-height: 210px; }
  .feature-card h3 { margin-top: 44px; }
  .community-calendar { padding: 14px; }
  .calendar-grid > span { min-height: 43px; padding: 5px; }
  .calendar-grid small { right: 4px; bottom: 4px; min-width: 17px; height: 17px; }
  .cta-section { padding-bottom: 68px; }
  .cta-card { align-items: stretch; flex-direction: column; padding: 34px 25px; }
  .signup-card { padding: 22px 18px; }
  .signup-card-head { grid-template-columns: 1fr; }
  .signup-progress { justify-content: space-between; }
  .footer-inner { grid-template-columns: 1fr; }
  .site-footer p, .site-footer small { grid-column: auto; grid-row: auto; }
  .site-footer nav { justify-self: start; flex-wrap: wrap; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { scroll-behavior: auto !important; transition: none !important; }
}