@charset "UTF-8";

:root {
  --bg: #FFFFFF;
  --bg-2: #F8FBFF;
  --panel: #FFFFFF;
  --line: #E7EDF6;
  --ink: #2B3242;
  --muted: #6C7486;
  --sun: #FDBA74;
  --sun-deep: #E08B45;
  --sky: #BFDBFE;
  --shell: 1180px;
  --header-height: 70px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: calc(var(--header-height) + 18px); }
body {
  min-width: 320px;
  margin: 0;
  color: var(--ink);
  background: var(--bg);
  font-family: "Microsoft YaHei", "PingFang SC", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.7;
}
img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { color: inherit; font: inherit; }
svg { display: block; }
a:focus-visible, button:focus-visible, summary:focus-visible { outline: 3px solid var(--sun-deep); outline-offset: 4px; }
.page-shell { width: min(calc(100% - 48px), var(--shell)); margin: 0 auto; }
.eyebrow {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 14px;
  color: var(--sun-deep);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 2.2px;
  line-height: 1.4;
}
.eyebrow::before { width: 18px; height: 2px; content: ""; background: currentColor; }

/* header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 60;
  border-bottom: 1px solid var(--line);
  background: rgba(255, 255, 255, .94);
  backdrop-filter: blur(14px);
}
.nav-shell {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: min(calc(100% - 48px), var(--shell));
  min-height: var(--header-height);
  margin: 0 auto;
  gap: 20px;
}
.brand { display: inline-flex; align-items: center; flex: none; gap: 10px; font-size: 21px; font-weight: 900; letter-spacing: .4px; }
.brand img { width: 38px; height: 38px; border: 1px solid var(--line); border-radius: 12px; object-fit: contain; background: #fff; }
.brand-tag {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 19px;
  height: 19px;
  border-radius: 6px;
  background: var(--sun);
  color: #6B3E14;
  font-size: 10px;
  font-style: normal;
  font-weight: 900;
}
.primary-nav { margin-left: auto; }
.primary-nav ul { display: flex; align-items: center; gap: clamp(12px, 1.9vw, 26px); padding: 0; margin: 0; list-style: none; }
.primary-nav a { display: block; padding: 7px 0; border-bottom: 2px solid transparent; color: #6C7486; font-size: 13px; font-weight: 700; }
.primary-nav a:hover { border-bottom-color: var(--sun); color: var(--ink); }
.nav-actions { display: flex; align-items: center; flex: none; gap: 10px; }
.nav-download {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 42px;
  gap: 8px;
  padding: 0 18px;
  border: 1px solid var(--sun);
  border-radius: 999px;
  background: var(--sun);
  color: #63390F;
  font-size: 13px;
  font-weight: 900;
  white-space: nowrap;
  transition: background .18s ease, color .18s ease;
}
.nav-download:hover { background: #fff; color: var(--sun-deep); }
.nav-download svg, .button svg { width: 18px; height: 18px; flex: none; fill: none; stroke: currentColor; stroke-width: 1.9; stroke-linecap: round; stroke-linejoin: round; }
.menu-toggle { display: none; width: 42px; height: 42px; padding: 0; border: 1px solid var(--line); border-radius: 10px; background: transparent; cursor: pointer; }
.menu-toggle span { display: block; width: 18px; height: 2px; margin: 5px auto; background: var(--ink); transition: transform .18s ease; }
.menu-toggle[aria-expanded="true"] span:first-child { transform: translateY(3.5px) rotate(45deg); }
.menu-toggle[aria-expanded="true"] span:last-child { transform: translateY(-3.5px) rotate(-45deg); }

/* hero */
.hero {
  position: relative;
  overflow: hidden;
  border-bottom: 1px solid var(--line);
  background:
    radial-gradient(480px 320px at 18% 4%, rgba(253, 186, 116, .28), transparent 72%),
    radial-gradient(520px 360px at 86% 12%, rgba(191, 219, 254, .5), transparent 74%),
    linear-gradient(180deg, #FFFDFA 0%, #F6FAFF 100%);
}
.hero::before,
.hero::after {
  position: absolute;
  border-radius: 50%;
  content: "";
  pointer-events: none;
}
.hero::before { top: 54px; left: 7%; width: 120px; height: 120px; border: 1px dashed rgba(224, 139, 69, .34); }
.hero::after { right: 8%; bottom: 96px; width: 74px; height: 74px; background: rgba(191, 219, 254, .45); }
.hero-inner {
  position: relative;
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 54px 0 34px;
  text-align: center;
}
.hero-copy { max-width: 700px; }
.hero-kicker {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 14px;
  color: #8B6A4C;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 1.4px;
}
.hero-kicker b {
  padding: 3px 8px;
  border-radius: 999px;
  background: var(--sun);
  color: #6B3E14;
  font-size: 9.5px;
  font-weight: 900;
  letter-spacing: 1.2px;
}
.hero h1 {
  margin: 0;
  color: var(--ink);
  font-size: clamp(62px, 10vw, 122px);
  font-weight: 900;
  letter-spacing: clamp(-3px, -.6vw, -7px);
  line-height: .92;
  overflow-wrap: anywhere;
}
.hero-subtitle {
  margin: 18px 0 0;
  color: var(--sun-deep);
  font-size: clamp(19px, 2.2vw, 25px);
  font-weight: 800;
  line-height: 1.4;
}
.hero-lead { max-width: 560px; margin: 13px auto 0; color: var(--muted); font-size: 14.5px; }
.hero-actions { display: flex; align-items: center; justify-content: center; flex-wrap: wrap; gap: 20px; margin-top: 24px; }
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 50px;
  gap: 14px;
  padding: 0 30px;
  border: 1px solid transparent;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 900;
  transition: transform .18s ease, background .18s ease, color .18s ease;
}
.button-primary { background: var(--sun); color: #63390F; box-shadow: 0 16px 32px rgba(224, 139, 69, .24); }
.button-primary:hover { background: #F8A85F; transform: translateY(-2px); }
.button-large { min-height: 54px; padding: 0 36px; font-size: 15px; }
.text-link { color: #6C7486; border-bottom: 1px dashed #D8E2F0; font-size: 13px; font-weight: 800; }
.text-link span { display: inline-block; margin-left: 5px; color: var(--sun-deep); }

.weather-card {
  width: min(430px, 100%);
  padding: 18px 24px 20px;
  margin: 30px auto 0;
  border: 1px solid #DEE8F7;
  border-radius: 26px;
  background: rgba(255, 255, 255, .88);
  box-shadow: 0 26px 52px rgba(88, 111, 160, .16);
  backdrop-filter: blur(10px);
}
.weather-label { display: flex; align-items: center; justify-content: space-between; gap: 10px; margin: 0; font-size: 12px; font-weight: 900; }
.weather-label span { color: #8B93A5; font-weight: 700; letter-spacing: .6px; }
.weather-label b { padding: 2px 10px; border-radius: 999px; background: #EAF2FF; color: #4B6A94; font-size: 10.5px; }
.weather-scene { position: relative; display: flex; align-items: center; justify-content: center; gap: 6px; min-height: 108px; margin: 6px 0 2px; }
.sun {
  position: relative;
  width: 74px;
  height: 74px;
  border-radius: 50%;
  background: radial-gradient(circle at 34% 30%, #FFFAF0, #FDBA74 74%);
  box-shadow: 0 16px 30px rgba(224, 139, 69, .28);
}
.sun::before { position: absolute; inset: -15px; border: 2px dashed rgba(224, 139, 69, .38); border-radius: 50%; content: ""; animation: spin 26s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }
.cloud { position: relative; width: 104px; height: 36px; margin: 40px 0 0 -14px; border: 1px solid #C9DDF7; border-radius: 999px; background: #F2F7FF; }
.cloud::before,
.cloud::after { position: absolute; bottom: 15px; border: 1px solid #C9DDF7; border-bottom: 0; border-radius: 50% 50% 0 0; content: ""; background: #F2F7FF; }
.cloud::before { left: 16px; width: 46px; height: 34px; }
.cloud::after { right: 18px; width: 30px; height: 23px; }
.temp { margin-left: 10px; color: var(--sun-deep); font-size: 42px; font-weight: 900; line-height: 1; letter-spacing: -2px; }
.weather-text { margin: 2px 0 0; color: #7C8497; font-size: 12.5px; }
.greet-bar {
  display: inline-flex;
  align-items: center;
  flex-wrap: wrap;
  justify-content: center;
  gap: 6px 14px;
  padding: 9px 20px;
  margin: 20px 0 0;
  border: 1px solid #E4ECF7;
  border-radius: 999px;
  background: rgba(255, 255, 255, .82);
}
.greet-bar b { color: var(--sun-deep); font-size: 13px; letter-spacing: .5px; }
.greet-bar p { margin: 0; color: #4E5668; font-size: 12px; }
.greet-bar span { color: #98A0B0; font-size: 10.5px; }
.greet-bar span::before { margin-right: 7px; content: "·"; }

/* features */
.features { padding: 70px 0 74px; border-bottom: 1px solid var(--line); background: var(--bg); }
.section-heading { margin-bottom: 30px; }
.section-heading h2, .download h2 { margin: 0; color: var(--ink); font-size: clamp(24px, 2.8vw, 35px); font-weight: 900; letter-spacing: -.6px; line-height: 1.3; }
.section-heading > p:last-child { max-width: 620px; margin: 12px 0 0; color: var(--muted); font-size: 14px; }
.feature-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 14px; }
.feature-card {
  padding: 24px 20px 22px;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: linear-gradient(180deg, #FFFDF9, #FFFFFF 62%);
}
.feature-dot {
  display: block;
  width: 30px;
  height: 30px;
  margin-bottom: 14px;
  border-radius: 50%;
  background: radial-gradient(circle at 34% 30%, #FFF7EA, var(--sun) 76%);
  box-shadow: 0 8px 16px rgba(224, 139, 69, .2);
}
.feature-card h3 { margin: 0 0 7px; font-size: 17px; font-weight: 900; }
.feature-card p { margin: 0; color: var(--muted); font-size: 12.8px; line-height: 1.8; }

/* shots */
.shots { padding: 74px 0 78px; background: var(--bg-2); }
.shot-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); grid-auto-rows: auto; gap: 14px; align-items: stretch; }
.shot-card { display: flex; flex-direction: column; margin: 0; border: 1px solid var(--line); border-radius: 18px; background: #fff; overflow: hidden; }
.shot-card img { width: 100%; height: auto; aspect-ratio: 4 / 5; object-fit: cover; object-position: center 8%; }
.shot-card figcaption { display: flex; align-items: baseline; gap: 9px; padding: 11px 15px 13px; margin-top: auto; border-top: 1px solid var(--line); }
.shot-card figcaption b { color: var(--sun-deep); font-size: 10px; letter-spacing: 1.2px; }
.shot-card figcaption span { font-size: 13.5px; font-weight: 900; }
.shot-main { grid-row: span 2; }
.shot-main img { flex: 1 1 auto; height: 100%; min-height: 0; aspect-ratio: auto; object-fit: cover; object-position: center 20%; }
.shot-wide { grid-column: 2 / 4; }
.shot-wide img { aspect-ratio: 16 / 8.4; object-position: center 0; }

/* faq */
.faq { padding: 72px 0 78px; border-top: 1px solid var(--line); background: var(--bg); }
.faq-layout { display: grid; grid-template-columns: minmax(0, .84fr) minmax(0, 1.16fr); gap: clamp(24px, 4vw, 54px); }
.faq-heading { position: sticky; top: calc(var(--header-height) + 26px); align-self: start; }
.faq-list { border-top: 1px solid var(--line); }
.faq-list details { border-bottom: 1px solid var(--line); }
.faq-list summary { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding: 17px 0; cursor: pointer; list-style: none; }
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary h3 { margin: 0; font-size: 15.5px; font-weight: 900; }
.faq-list summary i { position: relative; flex: none; width: 22px; height: 22px; border: 1px solid #F0D3B8; border-radius: 50%; background: #FFF8EF; }
.faq-list summary i::before,
.faq-list summary i::after { position: absolute; top: 50%; left: 50%; width: 9px; height: 1.5px; content: ""; background: var(--sun-deep); transform: translate(-50%, -50%); }
.faq-list summary i::after { transform: translate(-50%, -50%) rotate(90deg); transition: transform .2s ease; }
.faq-list details[open] summary i::after { transform: translate(-50%, -50%) rotate(0); }
.faq-list details p { padding: 0 30px 18px 0; margin: 0; color: var(--muted); font-size: 13.5px; line-height: 1.85; }

/* reviews */
.reviews { padding: 74px 0 80px; background: var(--bg-2); }
.review-list { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; padding: 0; margin: 0; list-style: none; }
.review-card { padding: 18px 20px; border: 1px solid var(--line); border-radius: 16px; background: #fff; }
.review-meta { display: flex; flex-wrap: wrap; align-items: baseline; justify-content: space-between; gap: 4px 12px; }
.review-meta b { color: var(--sun-deep); font-size: 13px; font-weight: 900; }
.review-meta time { color: #98A0B0; font-size: 10.5px; }
.review-card p { margin: 7px 0 0; color: #4E5668; font-size: 13px; line-height: 1.75; overflow-wrap: anywhere; }

/* steps */
.steps { padding: 70px 0 76px; border-top: 1px solid var(--line); background: var(--bg); }
.step-list { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 14px; padding: 0; margin: 0; list-style: none; }
.step-list li { padding: 24px 22px; border: 1px solid var(--line); border-radius: 20px; background: var(--bg-2); }
.step-list span { display: inline-flex; align-items: center; justify-content: center; width: 36px; height: 36px; margin-bottom: 12px; border-radius: 50%; background: var(--sun); color: #63390F; font-size: 13px; font-weight: 900; }
.step-list h3 { margin: 0 0 5px; font-size: 16.5px; font-weight: 900; }
.step-list p { margin: 0; color: var(--muted); font-size: 12.8px; line-height: 1.75; }

/* download */
.download { padding: 28px 0 34px; background: var(--bg); }
.download-inner {
  display: grid;
  grid-template-columns: minmax(0, 1.24fr) minmax(0, .76fr);
  align-items: center;
  gap: clamp(22px, 4vw, 50px);
  padding: 44px clamp(22px, 4.4vw, 52px);
  border: 1px solid #E6D6C4;
  border-radius: 24px;
  background:
    radial-gradient(360px 220px at 8% 0%, rgba(253, 186, 116, .34), transparent 70%),
    radial-gradient(380px 240px at 98% 100%, rgba(191, 219, 254, .5), transparent 72%),
    #FFFCF8;
}
.download .eyebrow { color: var(--sun-deep); }
.download h2 { max-width: 620px; }
.download-copy > p:not(.eyebrow) { max-width: 520px; margin: 12px 0 0; color: var(--muted); font-size: 14px; }
.download .button-large { justify-self: end; }
.download-notes { display: flex; flex-wrap: wrap; gap: 8px 22px; padding: 17px 0 0; margin: 20px 0 0; border-top: 1px solid #EFDFCD; list-style: none; }
.download-notes li { color: var(--sun-deep); font-size: 11.5px; }
.download-notes li::before { margin-right: 8px; content: "·"; }

/* footer */
.site-footer { padding: 42px 0 50px; border-top: 1px solid var(--line); background: #FBFCFE; }
.footer-grid { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 18px 40px; align-items: start; }
.footer-brand strong { font-size: 18px; font-weight: 900; }
.footer-brand p { margin: 4px 0 0; color: var(--muted); font-size: 12px; }
.footer-nav { display: flex; flex-wrap: wrap; gap: 8px 22px; }
.footer-nav a { color: #5F6676; font-size: 12px; }
.footer-nav a:hover { color: var(--sun-deep); }
.footer-meta { display: flex; flex-wrap: wrap; align-items: center; gap: 8px 20px; margin-top: 22px; padding-top: 17px; border-top: 1px solid var(--line); color: var(--muted); font-size: 12px; }
.footer-meta p { margin: 0; }
.footer-meta a { color: var(--muted); }
.disclaimer { grid-column: 1 / -1; margin: 0; color: #98A0B0; font-size: 11.5px; line-height: 1.8; }

/* responsive */
@media (max-width: 1000px) {
  .hero h1 { font-size: clamp(58px, 11vw, 96px); }
  .shot-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .shot-main img { object-position: center 18%; }
  .download-inner { grid-template-columns: 1fr; }
  .download .button-large { justify-self: start; }
}
@media (max-width: 900px) {
  .menu-toggle { display: block; }
  .primary-nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    display: none;
    padding: 8px 24px 16px;
    border-bottom: 1px solid var(--line);
    background: #fff;
    box-shadow: 0 16px 26px rgba(88, 111, 160, .14);
  }
  .primary-nav.is-open { display: block; }
  .primary-nav ul { flex-direction: column; align-items: stretch; gap: 0; }
  .primary-nav a { padding: 12px 0; border-bottom: 1px solid var(--line); }
  .faq-layout { grid-template-columns: 1fr; }
  .faq-heading { position: static; }
  .feature-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .shot-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .shot-main { grid-row: span 2; }
  .shot-wide { grid-column: auto; }
  .shot-wide img { aspect-ratio: 4 / 5; }
}
@media (max-width: 768px) {
  .page-shell, .nav-shell { width: calc(100% - 36px); }
  .review-list { grid-template-columns: 1fr; }
  .step-list { grid-template-columns: 1fr; }
  .shot-grid { gap: 10px; }
  .shot-main { grid-row: span 2; }
}
@media (max-width: 560px) {
  .page-shell, .nav-shell { width: calc(100% - 28px); }
  .brand { font-size: 18px; gap: 8px; }
  .brand img { width: 33px; height: 33px; }
  .brand-tag { display: none; }
  .nav-actions { gap: 8px; }
  .nav-download { min-height: 36px; padding: 0 10px; font-size: 11.5px; gap: 5px; }
  .nav-download svg { width: 14px; height: 14px; }
  .menu-toggle { width: 36px; height: 36px; }
  .hero-inner { padding: 40px 0 28px; }
  .hero h1 { font-size: clamp(52px, 18vw, 74px); }
  .hero-subtitle { font-size: 17px; }
  .hero-lead { font-size: 14px; }
  .button { width: 100%; }
  .hero-actions { gap: 14px; width: 100%; }
  .weather-card { padding: 15px 16px 17px; border-radius: 20px; }
  .weather-scene { min-height: 92px; }
  .sun { width: 60px; height: 60px; }
  .cloud { width: 86px; height: 30px; margin-top: 32px; }
  .cloud::before { width: 38px; height: 28px; }
  .cloud::after { width: 24px; height: 18px; }
  .temp { font-size: 34px; }
  .greet-bar { padding: 8px 14px; gap: 4px 10px; }
  .feature-grid { grid-template-columns: 1fr; }
  .shot-grid { grid-template-columns: 1fr; }
  .shot-main { grid-row: auto; }
  .shot-main img { height: auto; aspect-ratio: 4 / 4.6; }
  .shot-wide img { aspect-ratio: 4 / 4.6; }
  .download-inner { padding: 30px 20px 28px; }
  .footer-grid { grid-template-columns: 1fr; }
}