:root {
  --orange: #ff6b2c;
  --orange-dark: #e95017;
  --orange-soft: #fff1e9;
  --ink: #172033;
  --muted: #687083;
  --line: #e9eaf0;
  --surface: #f7f8fb;
  --white: #fff;
  --shadow: 0 24px 70px rgba(34, 43, 69, .12);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; color: var(--ink); background: var(--white); font-family: "PingFang SC", "Microsoft YaHei", system-ui, -apple-system, sans-serif; line-height: 1.65; }
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }
.container { width: min(1180px, calc(100% - 48px)); margin: 0 auto; }

.site-header { position: fixed; inset: 0 0 auto; z-index: 100; background: rgba(255,255,255,.88); border-bottom: 1px solid rgba(232,233,238,.9); backdrop-filter: blur(18px); }
.site-header.compact { position: sticky; }
.nav-wrap { height: 76px; display: flex; align-items: center; justify-content: space-between; }
.brand { display: inline-flex; align-items: center; gap: 12px; font-size: 20px; font-weight: 800; letter-spacing: .02em; }
.brand img { width: 42px; height: 42px; border-radius: 13px; box-shadow: 0 8px 22px rgba(255,107,44,.24); }
.nav-links { display: flex; align-items: center; gap: 34px; color: #4f5668; font-size: 15px; }
.nav-links a { transition: color .2s ease; }
.nav-links a:hover { color: var(--orange); }
.nav-cta { padding: 10px 20px; color: var(--white) !important; background: var(--ink); border-radius: 999px; }
.nav-toggle { display: none; padding: 8px; border: 0; background: transparent; }
.nav-toggle span { display: block; width: 24px; height: 2px; margin: 5px; background: var(--ink); }
.back-home { color: var(--orange-dark); font-weight: 700; }

.hero { position: relative; min-height: 780px; padding: 158px 0 88px; overflow: hidden; background: linear-gradient(135deg, #fff 28%, #fff8f3 100%); }
.hero::before { content: ""; position: absolute; width: 560px; height: 560px; right: -160px; top: 30px; border: 1px solid rgba(255,107,44,.13); border-radius: 50%; box-shadow: 0 0 0 75px rgba(255,107,44,.035), 0 0 0 150px rgba(255,107,44,.025); }
.hero-glow { position: absolute; border-radius: 50%; filter: blur(2px); }
.hero-glow-one { width: 220px; height: 220px; left: -100px; top: 180px; background: rgba(255,107,44,.08); }
.hero-glow-two { width: 100px; height: 100px; left: 45%; bottom: 40px; background: rgba(255,190,117,.14); }
.hero-grid { position: relative; display: grid; grid-template-columns: 1.05fr .95fr; align-items: center; gap: 70px; }
.eyebrow { display: flex; align-items: center; gap: 10px; margin: 0 0 16px; color: var(--orange-dark); font-size: 13px; font-weight: 800; letter-spacing: .16em; text-transform: uppercase; }
.eyebrow span { width: 28px; height: 2px; background: currentColor; }
.hero h1 { margin: 0; font-size: clamp(48px, 5.8vw, 76px); line-height: 1.12; letter-spacing: -.055em; }
.hero h1 em { color: var(--orange); font-style: normal; }
.hero-text { max-width: 600px; margin: 28px 0 34px; color: var(--muted); font-size: 18px; }
.hero-actions { display: flex; gap: 14px; }
.button { display: inline-flex; align-items: center; justify-content: center; min-height: 50px; padding: 0 25px; border-radius: 12px; font-weight: 700; transition: transform .2s ease, box-shadow .2s ease; }
.button:hover { transform: translateY(-2px); }
.button-primary { color: #fff; background: linear-gradient(135deg, var(--orange), #ff874b); box-shadow: 0 15px 30px rgba(255,107,44,.24); }
.button-ghost { border: 1px solid var(--line); background: rgba(255,255,255,.75); }
.trust-row { display: flex; flex-wrap: wrap; gap: 22px; margin-top: 40px; color: #596174; font-size: 13px; }
.trust-row span::before { content: "✓"; display: inline-grid; place-items: center; width: 18px; height: 18px; margin-right: 7px; color: var(--orange); background: var(--orange-soft); border-radius: 50%; font-weight: 900; }

.phone-stage { position: relative; min-height: 570px; display: grid; place-items: center; }
.phone { position: relative; z-index: 2; width: 286px; padding: 11px; border: 7px solid #202637; border-radius: 42px; background: #202637; box-shadow: 0 35px 80px rgba(31,38,55,.25); transform: rotate(2.5deg); }
.phone-speaker { position: absolute; z-index: 4; width: 84px; height: 22px; top: 8px; left: 50%; transform: translateX(-50%); background: #202637; border-radius: 0 0 14px 14px; }
.phone-screen { min-height: 540px; padding: 30px 17px 18px; overflow: hidden; background: #f5f6fa; border-radius: 29px; }
.app-topbar { display: flex; align-items: center; justify-content: space-between; }
.app-topbar small, .app-topbar strong { display: block; }
.app-topbar small { color: #8a90a0; font-size: 10px; }
.app-topbar strong { font-size: 17px; }
.avatar { display: grid; place-items: center; width: 34px; height: 34px; color: #fff; background: var(--orange); border-radius: 12px; font-size: 13px; font-weight: 800; }
.summary-card { margin-top: 17px; padding: 18px; color: #fff; background: linear-gradient(135deg, #ff6b2c, #ff8a4f); border-radius: 18px; box-shadow: 0 12px 24px rgba(255,107,44,.22); }
.summary-card small, .summary-card strong { display: block; }
.summary-card small { opacity: .78; font-size: 10px; }
.summary-card strong { margin: 4px 0 12px; font-size: 24px; }
.summary-meta { display: flex; justify-content: space-between; font-size: 10px; opacity: .9; }
.map-card { position: relative; height: 155px; margin: 15px 0; overflow: hidden; background: #e8ecdf; border-radius: 17px; }
.map-card::after { content: ""; position: absolute; inset: 0; opacity: .5; background-image: linear-gradient(35deg, transparent 45%, #d2dac6 46%, #d2dac6 52%, transparent 53%), linear-gradient(130deg, transparent 46%, #dde4d4 47%, #dde4d4 54%, transparent 55%); background-size: 80px 80px; }
.map-road { position: absolute; z-index: 1; height: 9px; background: #fff; border: 1px solid #e0e5da; border-radius: 10px; }
.road-one { width: 220px; top: 73px; left: 14px; transform: rotate(-13deg); }
.road-two { width: 170px; top: 38px; left: 75px; transform: rotate(56deg); }
.road-three { width: 150px; top: 117px; left: -8px; transform: rotate(33deg); }
.pin { position: absolute; z-index: 3; display: grid; place-items: center; width: 27px; height: 27px; color: #fff; background: var(--ink); border: 3px solid #fff; border-radius: 50% 50% 50% 5px; transform: rotate(-45deg); box-shadow: 0 6px 12px rgba(27,33,50,.18); font-size: 9px; font-weight: 800; }
.pin-start { left: 42px; top: 76px; }.pin-end { right: 33px; top: 33px; background: var(--orange); }
.pin::first-letter { transform: rotate(45deg); }
.rider-dot { position: absolute; z-index: 4; width: 14px; height: 14px; left: 50%; top: 50%; background: #4987ff; border: 4px solid #fff; border-radius: 50%; box-shadow: 0 0 0 5px rgba(73,135,255,.18); }
.order-card { padding: 15px; background: #fff; border-radius: 16px; box-shadow: 0 8px 24px rgba(35,43,62,.07); }
.order-head { display: flex; justify-content: space-between; margin-bottom: 10px; font-size: 12px; }
.order-head span { color: var(--orange); }.order-card p { margin: 5px 0; color: #7b8291; font-size: 9px; }.order-card button { width: 100%; margin-top: 10px; padding: 9px; color: #fff; border: 0; border-radius: 9px; background: var(--ink); font-size: 10px; }
.float-card { position: absolute; z-index: 4; display: flex; align-items: center; gap: 11px; min-width: 205px; padding: 13px 15px; background: rgba(255,255,255,.94); border: 1px solid rgba(255,255,255,.7); border-radius: 15px; box-shadow: 0 18px 45px rgba(35,43,62,.14); backdrop-filter: blur(12px); }
.float-card-top { top: 85px; right: 0; }.float-card-bottom { left: 5px; bottom: 74px; }
.float-card b, .float-card small { display: block; }.float-card b { font-size: 12px; }.float-card small { color: #8a90a0; font-size: 9px; }
.float-icon { display: grid; place-items: center; width: 34px; height: 34px; color: #fff; background: #24bb79; border-radius: 11px; font-weight: 900; }.float-icon.orange { background: var(--orange); }
.route-line { position: absolute; width: 430px; height: 430px; border: 2px dashed rgba(255,107,44,.22); border-radius: 50%; }

.section { padding: 112px 0; }
.section-heading { max-width: 650px; margin-bottom: 48px; }
.section h2 { margin: 0; font-size: clamp(34px, 4vw, 50px); line-height: 1.18; letter-spacing: -.035em; }
.section-heading > p:last-child, .workflow-copy > p { color: var(--muted); font-size: 17px; }
.feature-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.feature-card { min-height: 265px; padding: 30px 26px; border: 1px solid var(--line); border-radius: 22px; background: #fff; transition: transform .25s ease, box-shadow .25s ease, border-color .25s ease; }
.feature-card:hover { transform: translateY(-6px); border-color: #ffd2bd; box-shadow: var(--shadow); }
.feature-icon { display: grid; place-items: center; width: 48px; height: 48px; color: var(--orange-dark); background: var(--orange-soft); border-radius: 14px; font-weight: 900; }
.feature-card h3 { margin: 26px 0 10px; font-size: 20px; }.feature-card p { margin: 0; color: var(--muted); font-size: 14px; }

.workflow-section { background: var(--surface); }
.workflow-grid { display: grid; grid-template-columns: .82fr 1.18fr; gap: 100px; align-items: start; }
.workflow-copy { position: sticky; top: 130px; }
.workflow-note { margin-top: 32px; padding: 17px 20px; color: #7a604f; background: #fff4ec; border-left: 3px solid var(--orange); border-radius: 0 12px 12px 0; font-size: 13px; }
.steps { margin: 0; padding: 0; list-style: none; }
.steps li { display: grid; grid-template-columns: 68px 1fr; gap: 22px; padding: 30px 0; border-bottom: 1px solid #dddee5; }
.steps li:first-child { padding-top: 0; }.steps li > span { color: var(--orange); font-size: 28px; font-weight: 900; }.steps h3 { margin: 0 0 7px; font-size: 20px; }.steps p { margin: 0; color: var(--muted); }

.safety-grid { display: grid; grid-template-columns: .9fr 1.1fr; gap: 90px; align-items: center; }
.safety-panel { position: relative; min-height: 360px; display: flex; align-items: flex-end; padding: 42px; overflow: hidden; color: #fff; background: linear-gradient(145deg, #1d2536, #303a50); border-radius: 30px; box-shadow: var(--shadow); }
.safety-panel::before { content: ""; position: absolute; width: 300px; height: 300px; right: -70px; top: -70px; border: 45px solid rgba(255,255,255,.04); border-radius: 50%; }
.safety-panel::after { content: ""; position: absolute; width: 130px; height: 130px; left: -20px; top: 30px; background: rgba(255,107,44,.2); border-radius: 50%; filter: blur(1px); }
.shield { position: relative; z-index: 2; display: grid; place-items: center; flex: 0 0 auto; width: 68px; height: 76px; margin-right: 24px; color: #fff; background: var(--orange); clip-path: polygon(50% 0, 94% 17%, 87% 72%, 50% 100%, 13% 72%, 6% 17%); font-size: 28px; font-weight: 900; }
.safety-panel div:last-child { position: relative; z-index: 2; }.safety-panel small, .safety-panel strong { display: block; }.safety-panel small { opacity: .65; }.safety-panel strong { max-width: 300px; font-size: 25px; line-height: 1.35; }
.safety-copy > p:nth-of-type(2) { color: var(--muted); font-size: 16px; }
.policy-links { display: grid; gap: 10px; margin-top: 30px; }.policy-links a { display: flex; justify-content: space-between; padding: 14px 0; border-bottom: 1px solid var(--line); font-weight: 700; }.policy-links a span { color: var(--orange); }

.download-section { padding: 20px 0 112px; }
.download-card { display: flex; align-items: center; justify-content: space-between; gap: 50px; padding: 60px 70px; color: #fff; overflow: hidden; background: linear-gradient(135deg, #ff6325, #ff8546); border-radius: 32px; box-shadow: 0 28px 70px rgba(255,107,44,.23); }
.download-card h2 { margin: 0 0 14px; font-size: 42px; line-height: 1.2; }.download-card p { max-width: 610px; margin: 0; opacity: .86; }.eyebrow.light { color: #fff; opacity: .8; }
.app-badge { flex: 0 0 auto; display: flex; align-items: center; gap: 14px; min-width: 260px; padding: 17px; color: var(--ink); background: #fff; border-radius: 18px; box-shadow: 0 15px 35px rgba(159,59,18,.2); }.app-badge img { width: 54px; height: 54px; border-radius: 15px; }.app-badge strong, .app-badge small { display: block; }.app-badge small { color: var(--muted); }

.site-footer { color: #c7ccda; background: #141a28; }
.footer-grid { display: grid; grid-template-columns: .8fr 1.2fr; gap: 80px; padding: 70px 0 48px; }.footer-brand .brand { color: #fff; }.footer-brand p { max-width: 330px; color: #8991a4; }.footer-links { display: grid; grid-template-columns: .7fr 1fr 1.5fr; gap: 35px; }.footer-links div { display: flex; flex-direction: column; gap: 10px; }.footer-links strong { margin-bottom: 6px; color: #fff; }.footer-links a, .footer-links span { color: #8991a4; font-size: 13px; }.footer-links a:hover { color: #fff; }
.footer-bottom { display: flex; justify-content: space-between; gap: 20px; padding: 22px 0; border-top: 1px solid #282f3f; color: #747d91; font-size: 12px; }

.document-page { background: var(--surface); }.document-main { padding: 72px 0 100px; }.document { max-width: 880px; padding: 58px 70px; background: #fff; border: 1px solid var(--line); border-radius: 24px; box-shadow: 0 18px 50px rgba(34,43,69,.06); }.document header { padding-bottom: 28px; margin-bottom: 34px; border-bottom: 1px solid var(--line); }.document h1 { margin: 0 0 10px; font-size: 42px; letter-spacing: -.03em; }.document header > p:last-child { color: var(--muted); font-size: 13px; }.document h2 { margin: 34px 0 12px; font-size: 20px; }.document p, .document li { color: #555e70; font-size: 15px; }.document ul { padding-left: 22px; }.document-footer { padding: 28px 0; color: #858c9c; text-align: center; font-size: 13px; }

.reveal { opacity: 0; transform: translateY(20px); transition: opacity .7s ease, transform .7s ease; }.reveal.is-visible { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; }.reveal { opacity: 1; transform: none; transition: none; }.button, .feature-card { transition: none; } }
@media (max-width: 980px) {
  .hero-grid, .workflow-grid, .safety-grid { grid-template-columns: 1fr; }.hero-grid { gap: 30px; }.hero-copy { text-align: center; }.hero-text { margin-left: auto; margin-right: auto; }.hero-actions, .trust-row { justify-content: center; }.phone-stage { min-height: 590px; }.feature-grid { grid-template-columns: repeat(2, 1fr); }.workflow-copy { position: static; }.workflow-grid, .safety-grid { gap: 55px; }.footer-grid { grid-template-columns: 1fr; gap: 45px; }.download-card { padding: 52px; }
}
@media (max-width: 720px) {
  .container { width: min(calc(100% - 30px), 1180px); }.site-header { background: rgba(255,255,255,.96); }.nav-wrap { height: 66px; }.brand img { width: 36px; height: 36px; }.nav-toggle { display: block; }.nav-links { position: absolute; left: 15px; right: 15px; top: 73px; display: none; flex-direction: column; align-items: stretch; gap: 0; padding: 10px; background: #fff; border: 1px solid var(--line); border-radius: 16px; box-shadow: var(--shadow); }.nav-links.is-open { display: flex; }.nav-links a { padding: 12px 14px; }.nav-cta { text-align: center; }.hero { min-height: auto; padding: 125px 0 70px; }.hero h1 { font-size: 42px; }.hero-text { font-size: 16px; }.hero-actions { flex-direction: column; }.button { width: 100%; }.trust-row { gap: 11px 18px; }.phone-stage { min-height: 540px; transform: scale(.9); margin: -20px 0; }.float-card-top { right: -30px; }.float-card-bottom { left: -25px; }.section { padding: 80px 0; }.section-heading { margin-bottom: 34px; }.section h2 { font-size: 34px; }.feature-grid { grid-template-columns: 1fr; }.feature-card { min-height: auto; }.steps li { grid-template-columns: 52px 1fr; }.safety-panel { min-height: 300px; padding: 28px; }.download-section { padding-bottom: 80px; }.download-card { flex-direction: column; align-items: flex-start; padding: 38px 28px; border-radius: 24px; }.download-card h2 { font-size: 34px; }.app-badge { min-width: 0; width: 100%; }.footer-links { grid-template-columns: 1fr 1fr; }.footer-links div:last-child { grid-column: 1 / -1; }.footer-bottom { flex-direction: column; }.document-main { padding: 28px 0 60px; }.document { padding: 34px 24px; border-radius: 18px; }.document h1 { font-size: 32px; }
}
@media (max-width: 420px) { .phone-stage { transform: scale(.78); margin: -65px 0; }.hero { padding-bottom: 20px; }.footer-links { grid-template-columns: 1fr; }.footer-links div:last-child { grid-column: auto; } }