:root {
  color-scheme: light;
  --brand: #3977f3;
  --brand-deep: #245bcf;
  --ink: #192a43;
  --ink-soft: #41536b;
  --muted: #718097;
  --line: #e3eaf2;
  --surface: #fff;
  --soft: #f5f8fc;
  --blue-soft: #eaf3ff;
  --width: 1200px;
}

* { box-sizing: border-box; }
html { scroll-behavior: auto; scroll-padding-top: 76px; }
body { margin: 0; color: var(--ink); background: #fff; font-family: "HarmonyOS Sans SC", "PingFang SC", "Microsoft YaHei UI", "Microsoft YaHei", Arial, sans-serif; font-size: 15px; line-height: 1.7; -webkit-font-smoothing: antialiased; }
body.menu-open { overflow: hidden; }
a { color: inherit; text-decoration: none; }
button { color: inherit; font: inherit; }
img, svg { display: block; }
svg { fill: none; stroke: currentColor; stroke-linecap: round; stroke-linejoin: round; stroke-width: 1.7; }
.page-width { width: min(var(--width), calc(100% - 48px)); margin: 0 auto; }
a:focus-visible, button:focus-visible, summary:focus-visible { outline: 3px solid rgba(57,119,243,.3); outline-offset: 3px; }

.site-header { position: sticky; z-index: 20; top: 0; height: 76px; border-bottom: 1px solid #e7edf4; background: rgba(255,255,255,.96); }
.header-inner { width: min(var(--width), calc(100% - 48px)); height: 76px; margin: 0 auto; display: flex; align-items: center; }
.brand { flex: 0 0 auto; display: flex; align-items: center; }
.brand img { width: 165px; height: 42px; object-fit: contain; }
.desktop-nav { margin-left: auto; display: flex; align-items: center; gap: 30px; color: #5b6a80; font-size: 14px; }
.desktop-nav a { height: 76px; display: flex; align-items: center; border-bottom: 3px solid transparent; }
.desktop-nav a.active { color: var(--brand); border-bottom-color: var(--brand); }
.nav-login { min-width: 108px; height: 40px; margin-left: 30px; display: inline-flex; align-items: center; justify-content: center; border-radius: 8px; color: #fff; background: var(--brand); font-size: 14px; }
.mobile-menu-toggle, .mobile-menu { display: none; }

.hero { min-height: 700px; padding: 62px 0 72px; overflow: hidden; background: radial-gradient(circle at 76% 18%, rgba(109,151,255,.25), transparent 25%), radial-gradient(circle at 93% 82%, rgba(69,199,255,.2), transparent 24%), linear-gradient(125deg, #eef5ff 0%, #f8fbff 45%, #dbeaff 100%); }
.hero-grid { min-height: 566px; display: grid; grid-template-columns: minmax(0, .78fr) minmax(620px, 1.22fr); gap: 54px; align-items: center; }
.hero-copy { max-width: 490px; }
.hero-brand { margin: 0 0 18px; color: #4776c4; font-size: 16px; font-weight: 600; letter-spacing: .1em; }
.hero h1 { margin: 0; color: #142642; font-size: clamp(56px, 5.5vw, 76px); font-weight: 750; letter-spacing: -.055em; line-height: 1.13; }
.hero h1 span { color: #2e6ee5; white-space: nowrap; }
.hero-description { max-width: 470px; margin: 25px 0 0; color: #536b89; font-size: 18px; line-height: 1.85; }
.hero-actions { display: flex; gap: 13px; margin-top: 32px; }
.button { min-width: 142px; height: 50px; padding: 0 22px; display: inline-flex; align-items: center; justify-content: center; border: 1px solid transparent; border-radius: 9px; font-size: 14px; font-weight: 600; }
.button-primary { color: #fff; background: var(--brand); }
.button-secondary { color: #3c526d; border-color: #cdd9e7; background: rgba(255,255,255,.75); }
.hero-links { margin-top: 25px; display: flex; gap: 26px; color: #58708f; font-size: 13px; }
.hero-links a::after { margin-left: 7px; color: #3977f3; content: "→"; }

.hero-showcase { min-height: 540px; display: grid; grid-template-columns: .95fr 1.08fr .86fr; gap: 14px; align-items: center; }
.showcase-column { display: grid; gap: 14px; }
.showcase-column-left { padding-top: 56px; }
.showcase-column-right { padding-top: 28px; }
.showcase-card { position: relative; overflow: hidden; border: 1px solid rgba(211,225,242,.95); border-radius: 21px; color: #294361; background: rgba(255,255,255,.9); box-shadow: 0 18px 38px rgba(45,79,127,.11); }
.showcase-card small, .showcase-card strong { display: block; }
.showcase-card small { color: #8291a6; font-size: 11px; }
.showcase-card strong { margin-top: 4px; font-size: 16px; font-weight: 700; }
.showcase-icon { width: 47px; height: 47px; display: grid; place-items: center; border-radius: 14px; color: #3977f3; background: #eaf2ff; }
.showcase-icon svg { width: 25px; height: 25px; }
.showcase-product { min-height: 232px; padding: 24px; }
.showcase-product > small { margin-top: 18px; }
.mini-products { margin-top: 18px; display: grid; gap: 8px; }
.mini-products span { min-height: 35px; padding: 0 9px; display: grid; grid-template-columns: 8px 1fr auto; gap: 7px; align-items: center; border: 1px solid #edf2f7; border-radius: 8px; background: #f9fbfe; }
.mini-products i { width: 7px; height: 7px; border-radius: 50%; background: #5e91ed; }
.mini-products span:last-child i { background: #3dbb86; }
.mini-products b, .mini-products em { font-size: 9px; font-style: normal; font-weight: 500; }
.mini-products b { color: #62758d; }.mini-products em { color: #8493a6; }
.showcase-stock { min-height: 120px; padding: 20px; display: flex; align-items: center; gap: 14px; background: linear-gradient(135deg, #f2efff, #fff); }
.showcase-number { width: 48px; height: 48px; display: grid; place-items: center; border-radius: 15px; color: #7163e6; background: #ebe7ff; font-size: 12px; font-weight: 700; }
.showcase-stock strong { font-size: 14px; }
.showcase-delivery { min-height: 286px; padding: 28px 25px; color: #fff; border-color: rgba(74,131,237,.35); background: linear-gradient(145deg, #3473e8, #5aa9f4); box-shadow: 0 22px 44px rgba(49,105,215,.24); }
.showcase-delivery::before { position: absolute; top: -70px; right: -70px; width: 190px; height: 190px; border: 1px solid rgba(255,255,255,.2); border-radius: 50%; content: ""; box-shadow: 0 0 0 28px rgba(255,255,255,.035); }
.showcase-delivery small { margin-top: 22px; color: #d9ebff; }.showcase-delivery strong { font-size: 22px; }
.delivery-mark { width: 58px; height: 58px; display: grid; place-items: center; border-radius: 18px; background: rgba(255,255,255,.17); }
.delivery-mark svg { width: 31px; height: 31px; }
.delivery-flow { position: relative; margin-top: 35px; display: grid; grid-template-columns: repeat(3,1fr); }
.delivery-flow::before { position: absolute; top: 6px; right: 14%; left: 14%; height: 1px; background: rgba(255,255,255,.38); content: ""; }
.delivery-flow span { position: relative; z-index: 1; display: flex; align-items: center; flex-direction: column; gap: 8px; color: #e3f1ff; font-size: 10px; }
.delivery-flow i { width: 13px; height: 13px; border: 3px solid #7eb8f5; border-radius: 50%; background: #fff; }
.showcase-payment { min-height: 124px; padding: 21px; display: flex; align-items: center; justify-content: space-between; }
.payment-marks { display: flex; align-items: center; }
.payment-marks img { width: 42px; height: 42px; border: 4px solid #fff; border-radius: 50%; }
.payment-marks img + img { margin-left: -10px; }
.showcase-query { min-height: 162px; padding: 21px; background: linear-gradient(145deg, #fff, #eef6ff); }
.showcase-query > small { margin-top: 14px; }.showcase-query strong { font-size: 13px; line-height: 1.5; }
.showcase-service { min-height: 222px; padding: 23px; color: #fff; border-color: rgba(76,137,244,.35); background: linear-gradient(145deg, #5188ef, #65c1f5); box-shadow: 0 19px 38px rgba(56,119,218,.2); }
.service-head { display: flex; align-items: center; justify-content: space-between; }
.service-head span { font-size: 16px; font-weight: 700; }.service-head b { padding: 4px 8px; border-radius: 999px; background: rgba(255,255,255,.16); font-size: 9px; font-weight: 500; }
.service-lines { margin-top: 25px; display: grid; gap: 10px; }
.service-lines span { min-height: 32px; padding: 0 9px; display: flex; align-items: center; gap: 8px; border-radius: 8px; color: #eff8ff; background: rgba(255,255,255,.11); font-size: 10px; }
.service-lines i { width: 6px; height: 6px; border-radius: 50%; background: #fff; }
.showcase-settlement { min-height: 108px; padding: 19px; display: flex; align-items: center; justify-content: space-between; }
.showcase-settlement strong { font-size: 13px; }.showcase-settlement > svg { width: 27px; height: 27px; color: #3977f3; }

.section { padding: 92px 0; }
.section-title { margin: 0 auto 38px; text-align: center; }
.section-title h2 { margin: 0; color: #1d3454; font-size: 34px; font-weight: 700; letter-spacing: -.03em; }
.section-title p { margin: 9px 0 0; color: #7b899c; font-size: 14px; }
.section-title-left { margin: 0; text-align: left; }

.features-section { background: #fff; }
.feature-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.feature-grid article { min-height: 192px; padding: 27px 25px; border: 1px solid var(--line); border-radius: 12px; background: #fff; }
.feature-icon { width: 45px; height: 45px; display: grid; place-items: center; border-radius: 12px; color: #3977f3; background: #eaf2ff; }
.feature-icon svg { width: 24px; height: 24px; }.feature-icon-violet { color: #7667e9; background: #f0eeff; }.feature-icon-green { color: #2a9d76; background: #e8f8f2; }.feature-icon-cyan { color: #219abf; background: #e7f8fc; }.feature-icon-orange { color: #d98238; background: #fff1e3; }.feature-icon-indigo { color: #5b70c8; background: #edf0ff; }
.feature-grid h3 { margin: 18px 0 5px; color: #294261; font-size: 17px; font-weight: 650; }.feature-grid p { margin: 0; color: #78869a; font-size: 13px; }

.flow-section { background: var(--soft); }
.flow-list { position: relative; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(4, 1fr); list-style: none; }
.flow-list::before { position: absolute; top: 25px; right: 11%; left: 11%; height: 1px; background: #cbd9e8; content: ""; }
.flow-list li { position: relative; z-index: 1; padding: 0 22px; text-align: center; }
.flow-list b { width: 50px; height: 50px; margin: 0 auto; display: grid; place-items: center; border: 1px solid #a9c4e8; border-radius: 50%; color: #3977f3; background: #fff; font-size: 15px; font-weight: 650; }
.flow-list h3 { margin: 17px 0 5px; color: #2b4566; font-size: 17px; }.flow-list p { margin: 0; color: #7a889b; font-size: 13px; }

.channels-section { background: #fff; }
.channels-layout { display: grid; grid-template-columns: .9fr 1.1fr; gap: 80px; align-items: center; }
.channels-copy { max-width: 490px; }.channels-copy .section-title h2 { font-size: 35px; }.channels-copy .section-title p { max-width: 450px; font-size: 15px; line-height: 1.8; }
.text-link { display: inline-flex; align-items: center; gap: 8px; margin-top: 22px; color: #3977f3; font-size: 14px; font-weight: 600; }.text-link span { font-size: 18px; }
.payment-list { display: grid; gap: 13px; }.payment-card { min-height: 100px; padding: 20px 24px; display: flex; align-items: center; gap: 16px; border: 1px solid var(--line); border-radius: 13px; background: #fff; box-shadow: 0 8px 24px rgba(49,83,128,.06); }.payment-card img { width: 50px; height: 50px; }.payment-card h3 { margin: 0; color: #294361; font-size: 17px; }.payment-card p { margin: 3px 0 0; color: #8491a2; font-size: 12px; }

.faq-section { background: var(--soft); }.faq-layout { display: grid; grid-template-columns: 310px 1fr; gap: 90px; align-items: start; }.faq-list { border-top: 1px solid #dbe4ee; }.faq-list details { border-bottom: 1px solid #dbe4ee; }.faq-list summary { position: relative; padding: 20px 48px 20px 3px; color: #2b4465; font-size: 15px; font-weight: 600; cursor: pointer; list-style: none; }.faq-list summary::-webkit-details-marker { display: none; }.faq-list summary span { position: absolute; top: 50%; right: 5px; width: 27px; height: 27px; border-radius: 50%; background: #e8eff7; transform: translateY(-50%); }.faq-list summary span::before, .faq-list summary span::after { position: absolute; top: 50%; left: 50%; width: 10px; height: 1px; background: #6d7f97; content: ""; transform: translate(-50%,-50%); }.faq-list summary span::after { transform: translate(-50%,-50%) rotate(90deg); }.faq-list details[open] summary span::after { display: none; }.faq-list details[open] summary { color: #3977f3; }.faq-list details p { margin: -3px 48px 19px 3px; color: #74839a; font-size: 13px; }

.site-footer { color: #91a2b8; background: #152b4b; }.footer-main { padding: 52px 0 42px; display: grid; grid-template-columns: 2fr 1fr 1fr 1.2fr; gap: 48px; }.footer-brand img { width: 165px; height: auto; padding: 5px 9px; border-radius: 9px; background: #fff; }.footer-brand p { margin: 14px 0 0; color: #91a2b8; font-size: 12px; }.footer-column { display: flex; align-items: flex-start; flex-direction: column; }.footer-column h3 { margin: 0 0 13px; color: #fff; font-size: 14px; font-weight: 600; }.footer-column a, .footer-column span { margin: 4px 0; font-size: 12px; }.footer-bottom { min-height: 56px; display: flex; align-items: center; border-top: 1px solid rgba(255,255,255,.1); color: #7187a3; font-size: 11px; }

@media (max-width: 1100px) {
  .desktop-nav { gap: 20px; }.nav-login { margin-left: 20px; }.hero-grid { gap: 28px; grid-template-columns: .76fr 1.24fr; }.hero h1 { font-size: 58px; }.hero-showcase, .showcase-column { gap: 10px; }.showcase-card { border-radius: 18px; }.showcase-product { padding: 20px; }.showcase-delivery { padding-right: 20px; padding-left: 20px; }
}

@media (max-width: 900px) {
  .desktop-nav, .nav-login { display: none; }
  .mobile-menu-toggle { width: 42px; height: 42px; margin-left: auto; padding: 10px; display: block; border: 1px solid #d4dfec; border-radius: 9px; background: #fff; }
  .mobile-menu-toggle span { height: 2px; margin: 4px 0; display: block; background: #3c526d; }
  .mobile-menu { position: absolute; top: 76px; right: 0; left: 0; padding: 12px 24px 20px; border-top: 1px solid #e7edf4; background: #fff; box-shadow: 0 14px 28px rgba(38,68,108,.1); }
  .mobile-menu[hidden] { display: none; }.mobile-menu:not([hidden]) { display: block; }.mobile-menu > a { display: block; padding: 11px 0; border-bottom: 1px solid #edf1f5; color: #4a5d75; }.mobile-menu-actions { margin-top: 14px; display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }.mobile-menu-actions a { height: 43px; display: grid; place-items: center; border: 1px solid #d7e1ec; border-radius: 8px; color: #435872; }.mobile-menu-actions .mobile-register { color: #fff; border-color: var(--brand); background: var(--brand); }
  .hero { padding: 62px 0 68px; }.hero-grid { grid-template-columns: 1fr; gap: 44px; }.hero-copy { max-width: 660px; }.hero h1 { font-size: 66px; }.hero-showcase { width: 100%; max-width: 760px; margin: 0 auto; }.feature-grid { grid-template-columns: repeat(2, 1fr); }.channels-layout { gap: 46px; }.faq-layout { grid-template-columns: 1fr; gap: 38px; }.footer-main { grid-template-columns: 1.6fr 1fr 1fr; }.footer-column:last-child { grid-column: 1 / -1; }
}

@media (max-width: 620px) {
  .page-width, .header-inner { width: calc(100% - 32px); }.site-header, .header-inner { height: 68px; }.brand img { width: 148px; height: auto; }.mobile-menu { top: 68px; padding-right: 16px; padding-left: 16px; }
  .hero { padding: 50px 0 54px; }.hero-grid { gap: 34px; }.hero-brand { margin-bottom: 13px; font-size: 13px; }.hero h1 { font-size: 46px; }.hero-description { margin-top: 18px; font-size: 15px; }.hero-actions { margin-top: 24px; gap: 9px; }.button { flex: 1; min-width: 0; height: 46px; padding: 0 12px; font-size: 13px; }.hero-links { margin-top: 20px; gap: 20px; font-size: 12px; }
  .hero-showcase { min-height: 0; grid-template-columns: 1fr 1.06fr; gap: 9px; align-items: start; }.showcase-column { gap: 9px; }.showcase-column-left { padding-top: 30px; }.showcase-column-right { display: none; }.showcase-card { border-radius: 16px; }.showcase-product { min-height: 205px; padding: 17px; }.showcase-product > small { margin-top: 13px; }.showcase-icon { width: 40px; height: 40px; border-radius: 12px; }.showcase-icon svg { width: 22px; height: 22px; }.mini-products { margin-top: 12px; gap: 6px; }.mini-products span { min-height: 31px; padding: 0 6px; gap: 5px; }.showcase-stock { min-height: 102px; padding: 14px; gap: 9px; }.showcase-number { width: 39px; height: 39px; border-radius: 12px; font-size: 10px; }.showcase-stock strong { font-size: 11px; }.showcase-delivery { min-height: 250px; padding: 19px 16px; }.delivery-mark { width: 49px; height: 49px; border-radius: 15px; }.delivery-mark svg { width: 27px; height: 27px; }.showcase-delivery small { margin-top: 16px; }.showcase-delivery strong { font-size: 18px; }.delivery-flow { margin-top: 27px; }.showcase-payment { min-height: 105px; padding: 14px; }.payment-marks img { width: 35px; height: 35px; }.showcase-payment strong { font-size: 12px; }
  .section { padding: 67px 0; }.section-title { margin-bottom: 28px; }.section-title h2, .channels-copy .section-title h2 { font-size: 28px; }.section-title p { font-size: 13px; }.feature-grid { grid-template-columns: 1fr; gap: 11px; }.feature-grid article { min-height: 0; padding: 22px 20px; }.feature-grid h3 { margin-top: 14px; }.flow-list { grid-template-columns: 1fr; gap: 13px; }.flow-list::before { display: none; }.flow-list li { padding: 0; display: grid; grid-template-columns: 46px 1fr; gap: 14px; align-items: center; text-align: left; }.flow-list b { grid-row: span 2; margin: 0; }.flow-list h3 { margin: 0 0 2px; }.channels-layout { grid-template-columns: 1fr; gap: 28px; }.channels-copy .section-title { margin-bottom: 0; }.payment-card { min-height: 84px; padding: 15px 17px; }.payment-card img { width: 43px; height: 43px; }.payment-card h3 { font-size: 15px; }.payment-card p { font-size: 11px; }.faq-layout { gap: 25px; }.faq-list summary { padding: 17px 42px 17px 2px; font-size: 14px; }.faq-list details p { margin-right: 30px; font-size: 12px; }.footer-main { padding: 43px 0 34px; grid-template-columns: 1fr 1fr; gap: 30px 20px; }.footer-brand { grid-column: 1 / -1; }.footer-column:last-child { grid-column: 1 / -1; }.footer-bottom { min-height: 48px; }
}