:root { --blue: #0093ff; --blue-dark: #0876ce; --ink: #18232e; --muted: #79838d; --line: #edf0f3; --soft: #f6f9fc; --radius: 18px; color-scheme: light; font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif; }
* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 105px; }
body { margin: 0; color: var(--ink); background: #fff; -webkit-font-smoothing: antialiased; }
button, a { -webkit-tap-highlight-color: transparent; }
button { font: inherit; cursor: pointer; }
a { color: inherit; text-decoration: none; }
button:focus-visible, a:focus-visible, summary:focus-visible, [tabindex]:focus-visible { outline: 3px solid #0093ff80; outline-offset: 5px; }
img { max-width: 100%; }
.icon { width: 24px; height: 24px; fill: none; stroke: currentColor; stroke-width: 1.7; stroke-linecap: round; stroke-linejoin: round; flex-shrink: 0; }
.sprite { position: absolute; width: 0; height: 0; overflow: hidden; }
.skip-link { position: fixed; z-index: 10; left: 16px; top: -70px; background: #fff; padding: 12px 18px; border: 1px solid var(--blue); border-radius: 8px; }
.skip-link:focus { top: 12px; }
.site-header { position: sticky; z-index: 5; top: 0; background: #ffffffed; backdrop-filter: blur(16px); border-bottom: 1px solid #edf0f37a; }
.header-inner { max-width: 1200px; margin: auto; height: 82px; padding: 0 36px; display: flex; justify-content: space-between; align-items: center; gap: 24px; }
.brand { display: inline-flex; align-items: center; gap: 12px; white-space: nowrap; font-size: 19px; font-weight: 600; letter-spacing: -.5px; }
.brand img { border-radius: 50%; }
.brand-dot { margin: 0 3px; }
nav { display: flex; align-items: center; gap: 32px; font-size: 14px; }
nav a { color: #66717c; transition: color .2s; }
nav a:hover { color: var(--blue); }
.nav-start { display: inline-flex; align-items: center; gap: 8px; padding: 10px 15px; border: 0; border-radius: 9px; color: var(--blue-dark); background: #edf7ff; }
.nav-start .icon { width: 17px; height: 17px; }
.hero { position: relative; padding: 76px 24px 0; overflow: hidden; text-align: center; }
.hero-glow { position: absolute; width: 760px; height: 700px; left: calc(50% - 380px); top: 150px; border-radius: 50%; background: radial-gradient(ellipse, #e9f7ff7d 0%, #f5f8ff3d 48%, transparent 70%); pointer-events: none; }
.hero-copy { position: relative; z-index: 1; }
.eyebrow { color: #6a8ca8; font-size: 14px; letter-spacing: 2px; display: inline-flex; gap: 7px; align-items: center; }
.eyebrow .icon { width: 15px; height: 15px; color: var(--blue); }
h1 { margin: 21px 0 22px; font-size: clamp(43px, 4.4vw, 64px); font-weight: 650; letter-spacing: -2.5px; line-height: 1.25; }
h1 span { color: var(--blue); }
.hero-description { color: #7a8590; font-size: 17px; line-height: 1.85; margin: 0; }
.platforms { display: flex; justify-content: center; gap: 16px; margin-top: 32px; }
.platform-button { width: 178px; height: 62px; display: flex; justify-content: center; align-items: center; gap: 11px; border: 1px solid #9bcfff; border-radius: 12px; color: var(--blue-dark); background: #e8f4ff; font-size: 16px; box-shadow: 0 4px 12px #0093ff08; transition: border-color .2s, transform .2s, background .2s, box-shadow .2s; }
.platform-button:hover { border-color: #69b7f1; background: #dceeff; transform: translateY(-2px); box-shadow: 0 6px 16px #0093ff12; }
.platform-button--recommended { position: relative; }
.platform-recommendation { position: absolute; top: -10px; right: 10px; display: inline-flex; align-items: center; gap: 4px; padding: 4px 8px; border-radius: 999px; background: var(--blue); color: #fff; font-size: 10px; font-weight: 500; line-height: 1.2; white-space: nowrap; box-shadow: 0 2px 6px #0093ff1a; }
.platform-button .platform-recommendation .icon { width: 10px; height: 10px; fill: currentColor; stroke: none; }
.platform-note { margin: 17px 0 0; font-size: 12px; color: #99a1a9; letter-spacing: .2px; }
.product-scene { height: 570px; position: relative; max-width: 840px; margin: 54px auto 0; }
.scene-halo { position: absolute; width: 650px; height: 430px; top: 12px; left: calc(50% - 325px); border-radius: 50%; background: radial-gradient(ellipse, #eaf6ffcc 0, #eef5ff54 50%, #fff0 73%); }
.phone-shell { width: 266px; height: 522px; position: absolute; top: 0; left: calc(50% - 133px); border: 1px solid #dbe3eb; border-radius: 37px; padding: 8px; background: linear-gradient(150deg, #fff, #f1f5f9); box-shadow: 0 28px 60px #24456013, 0 4px 8px #24456008; transform: rotate(-3deg); }
.phone-screen { height: 100%; border: 1px solid #e5edf3; border-radius: 29px; overflow: hidden; background: #fff; text-align: left; position: relative; }
.phone-status { height: 36px; display: flex; align-items: center; justify-content: space-between; font-size: 9px; font-weight: 600; padding: 0 19px; }
.status-symbols { display: flex; align-items: center; gap: 6px; }
.battery { width: 13px; height: 7px; border: 1px solid #78899a; border-radius: 2px; display: inline-block; padding: 1px; background: #78899a; background-clip: content-box; }
.phone-title { display: flex; align-items: center; gap: 6px; padding: 8px 12px 12px; font-size: 11px; font-weight: 600; }
.phone-title > img { width: 18px; height: 18px; }
.mini-capsule { display: flex; align-items: center; margin-left: auto; border: 1px solid #dce7ef; border-radius: 15px; color: #677785; padding: 3px 6px; gap: 5px; font-size: 10px; }
.mini-capsule > span { padding-left: 5px; border-left: 1px solid #dce7ef; }
.phone-banner { height: 115px; margin: 0 10px; border-radius: 12px; padding: 17px 15px; color: #fff; background: linear-gradient(120deg, #1097ff, #49c6f8); position: relative; overflow: hidden; }
.phone-banner > span { font-size: 22px; font-weight: 600; letter-spacing: 2px; line-height: 1.35; }
.phone-banner > small { display: block; margin-top: 7px; font-size: 9px; color: #ffffffc9; }
.phone-banner .banner-star { position: absolute; right: 14px; top: 18px; width: 72px; height: 72px; stroke-width: .4; fill: #ffffff28; stroke: #ffffff96; transform: rotate(15deg); }
.phone-body { padding: 18px 11px 0; }
.phone-section-heading { display: flex; align-items: center; justify-content: space-between; margin-bottom: 11px; }
.phone-section-heading > strong { font-size: 12px; font-weight: 600; }
.phone-section-heading > small { font-size: 8px; color: #9aa6b3; }
.phone-tools { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 8px; }
.phone-tool { height: 79px; border-radius: 10px; padding: 9px; color: #fff; position: relative; }
.phone-tool > img { width: 19px; height: 19px; display: block; opacity: .9; }
.phone-tool > strong { font-size: 10px; display: block; margin-top: 5px; font-weight: 550; }
.phone-tool > small { display: block; font-size: 8px; opacity: .8; margin-top: 3px; }
.tool-pink { background: linear-gradient(130deg, #ed718d, #e55690); }
.tool-purple { background: linear-gradient(130deg, #a18cdd, #8673cf); }
.tool-blue { background: linear-gradient(130deg, #5daafa, #4a8ff0); }
.tool-orange { background: linear-gradient(130deg, #f3b270, #ef9664); }
.phone-bottom-note { display: flex; justify-content: center; gap: 4px; align-items: center; margin-top: 12px; font-size: 8px; color: #91a3b3; }
.phone-bottom-note .icon { width: 9px; height: 9px; }
.phone-tabbar { display: flex; justify-content: space-around; align-items: center; margin-top: 13px; padding-top: 7px; border-top: 1px solid #f0f3f7; color: #9da8b2; font-size: 18px; text-align: center; }
.phone-tabbar small { display: block; font-size: 8px; line-height: 1.4; }
.phone-tab-active { color: var(--blue); }
.phone-home-indicator { width: 68px; height: 3px; border-radius: 4px; background: #293643; position: absolute; bottom: 6px; left: calc(50% - 34px); }
.float-tile { position: absolute; z-index: 2; display: flex; align-items: center; gap: 13px; padding: 16px 21px; border-radius: 17px; background: #ffffffeb; box-shadow: 0 14px 44px #2445600c; border: 1px solid #edf2f7; text-align: left; }
.tile-left { left: 30px; top: 85px; transform: rotate(-5deg); }
.tile-right { right: 13px; top: 254px; transform: rotate(4deg); }
.float-tile strong { display: block; font-size: 14px; font-weight: 550; }
.float-tile small { display: block; color: #93a0ac; font-size: 11px; margin-top: 5px; }
.floating-icon { display: flex; align-items: center; justify-content: center; width: 42px; height: 42px; border-radius: 12px; }
.floating-icon.blue { background: #dff1ff; }
.floating-icon.violet { background: #f0eaff; }
.floating-icon img { width: 23px; height: 23px; filter: brightness(0) saturate(100%) invert(48%) sepia(88%) saturate(3414%) hue-rotate(181deg) brightness(100%) contrast(107%); }
.floating-icon.violet img { filter: brightness(0) saturate(100%) invert(45%) sepia(22%) saturate(1587%) hue-rotate(220deg) brightness(106%) contrast(85%); }
.scene-caption { position: absolute; bottom: 12px; left: 0; right: 0; color: #a7b0b9; font-size: 10px; letter-spacing: 1px; }
.section-wrap { max-width: 1120px; margin: auto; padding-left: 36px; padding-right: 36px; }
.features-section { padding-top: 86px; padding-bottom: 85px; }
.section-heading { text-align: center; }
.section-kicker { color: var(--blue-dark); font-size: 12px; letter-spacing: 2px; }
h2 { margin: 12px 0 15px; font-weight: 600; letter-spacing: -.8px; font-size: 34px; line-height: 1.4; }
.section-heading p, .faq-heading p { margin: 0; font-size: 15px; line-height: 1.8; color: var(--muted); }
.feature-tabs { display: flex; gap: 10px; justify-content: center; margin: 36px 0 32px; }
.feature-tabs button { border: 0; border-radius: 9px; background: transparent; color: #7e8b98; padding: 11px 19px; font-size: 14px; white-space: nowrap; }
.feature-tabs button:hover { background: #f5f9fc; }
.feature-tabs button[aria-selected="true"] { background: #edf7ff; color: var(--blue-dark); font-weight: 550; }
.feature-panel { min-height: 200px; }
.feature-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; }
.feature-item { padding: 26px 23px; border: 1px solid #eef2f5; border-radius: 15px; background: #fff; display: flex; gap: 15px; align-items: flex-start; }
.feature-icon { width: 39px; height: 39px; padding: 9px; border-radius: 10px; background: #f0f7fd; flex-shrink: 0; }
.feature-icon img { width: 21px; height: 21px; display: block; filter: brightness(0) saturate(100%) invert(46%) sepia(99%) saturate(2175%) hue-rotate(179deg) brightness(103%) contrast(102%); }
.feature-item h3 { font-size: 15px; margin: 1px 0 8px; font-weight: 550; }
.feature-item p { font-size: 12px; line-height: 1.9; color: #8794a0; margin: 0; }
.category-note { font-size: 12px; color: #8c99a5; line-height: 1.8; text-align: center; margin: 19px 0 0; }
.category-note:empty { display: none; }
.local-note { display: flex; gap: 14px; justify-content: center; align-items: flex-start; margin-top: 52px; padding: 27px 24px; border-radius: 15px; background: #f8fafc; }
.local-note .icon { color: #75b8e9; width: 22px; height: 22px; }
.local-note p { margin: 0; }
.local-note strong { display: block; font-size: 14px; font-weight: 500; }
.local-note span { display: block; font-size: 12px; color: #92a0ac; line-height: 1.8; margin-top: 7px; }
.faq-section { display: grid; grid-template-columns: .8fr 1.2fr; gap: 86px; padding-top: 61px; padding-bottom: 70px; border-top: 1px solid var(--line); }
.faq-heading h2 { font-size: 30px; }
.faq-list details { border-bottom: 1px solid var(--line); padding: 21px 0; }
.faq-list details:first-child { padding-top: 0; }
.faq-list summary { list-style: none; display: flex; justify-content: space-between; align-items: center; gap: 20px; cursor: pointer; font-size: 14px; font-weight: 500; line-height: 1.7; }
.faq-list summary::-webkit-details-marker { display: none; }
.faq-plus { width: 14px; height: 14px; position: relative; flex-shrink: 0; color: #94a4b2; }
.faq-plus::before, .faq-plus::after { content: ""; position: absolute; background: currentColor; }
.faq-plus::before { height: 1px; width: 12px; left: 1px; top: 6px; }
.faq-plus::after { width: 1px; height: 12px; left: 6px; top: 1px; }
.faq-list details[open] .faq-plus::after { display: none; }
.faq-list details p { font-size: 13px; line-height: 1.95; color: #85939f; margin: 14px 25px 0 0; }
.closing-section { text-align: center; border-top: 1px solid var(--line); padding-top: 62px; padding-bottom: 75px; }
.closing-section h2 { font-size: 28px; margin-top: 22px; margin-bottom: 9px; }
.closing-section p { font-size: 14px; color: var(--muted); margin: 0; }
.closing-button { display: inline-flex; gap: 9px; align-items: center; justify-content: center; background: var(--blue); color: #fff; border: 0; height: 48px; padding: 0 23px; border-radius: 10px; font-size: 14px; margin-top: 27px; transition: background .2s; }
.closing-button:hover { background: var(--blue-dark); }
.closing-button .icon { width: 18px; height: 18px; }
.site-footer { display: flex; justify-content: space-between; gap: 24px; padding-top: 25px; padding-bottom: 29px; border-top: 1px solid var(--line); font-size: 11px; color: #99a3ad; }
.site-footer > div { display: flex; gap: 25px; flex-wrap: wrap; }
.site-footer a:hover { color: var(--blue-dark); }
.platform-dialog { width: min(430px, calc(100% - 32px)); border: 0; padding: 35px 34px 31px; border-radius: 22px; color: var(--ink); text-align: center; box-shadow: 0 30px 100px #162c4740; }
.platform-dialog::backdrop { background: #12233757; backdrop-filter: blur(5px); }
.dialog-close { position: absolute; right: 16px; top: 14px; width: 32px; height: 32px; padding: 6px; border: 0; border-radius: 50%; background: #f3f6f8; color: #85939f; display: flex; }
.dialog-close .icon { width: 20px; height: 20px; }
.platform-dialog h2 { font-size: 23px; margin: 19px 0 11px; }
.platform-dialog > p { font-size: 13px; color: #83919e; line-height: 1.8; margin: 0; }
.qr-frame { max-width: 235px; padding: 13px; background: #fff; border: 1px solid #edf1f5; border-radius: 17px; margin: 23px auto 17px; }
.qr-frame img { display: block; width: 100%; height: auto; border-radius: 6px; }
.platform-dialog .qr-hint { font-size: 11px; }
.dialog-actions { display: flex; flex-wrap: wrap; justify-content: center; gap: 10px; }
.save-code { display: inline-flex; justify-content: center; align-items: center; min-height: 44px; padding: 0 22px; margin-top: 22px; border-radius: 9px; background: #edf7ff; color: var(--blue-dark); font-size: 13px; }
body.dialog-open { overflow: hidden; }
.noscript-note { text-align: center; color: var(--muted); font-size: 14px; }
[hidden] { display: none !important; }
@media (min-width: 960px) { .feature-grid:has(> :last-child:nth-child(2)) { grid-template-columns: repeat(2, minmax(0, 1fr)); max-width: 790px; margin: auto; } }
@media (max-width: 900px) { .feature-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); } .tile-left { left: 0; } .tile-right { right: 0; } .float-tile { padding: 14px; gap: 10px; } .faq-section { gap: 40px; } }
@media (max-width: 640px) {
  html { scroll-padding-top: 85px; }
  .header-inner { height: 70px; padding: 0 20px; gap: 12px; }
  .brand { font-size: 15px; gap: 8px; }
  .brand img { width: 29px; height: 29px; }
  nav { gap: 0; }
  nav > a { display: none; }
  .nav-start { padding: 9px 11px; font-size: 12px; }
  .nav-start .icon { width: 14px; height: 14px; }
  .hero { padding: 56px 20px 0; }
  .eyebrow { font-size: 11px; letter-spacing: 1.1px; }
  h1 { font-size: 44px; letter-spacing: -1.6px; margin-top: 21px; }
  .hero-description { font-size: 14px; line-height: 1.9; }
  .platforms { gap: 8px; margin-top: 27px; }
  .platform-button { flex: 1; min-width: 0; width: auto; height: 55px; border-radius: 10px; font-size: 13px; gap: 6px; padding: 0 7px; }
  .platform-button .icon { width: 20px; height: 20px; }
  .platform-note { font-size: 10px; margin-top: 16px; }
  .product-scene { margin-top: 43px; height: 525px; }
  .phone-shell { transform: rotate(-2deg) scale(.94); transform-origin: top center; }
  .float-tile { display: none; }
  .scene-caption { bottom: 8px; }
  .scene-halo { width: 460px; left: calc(50% - 230px); }
  .section-wrap { padding-left: 22px; padding-right: 22px; }
  .features-section { padding-top: 72px; padding-bottom: 47px; }
  h2 { font-size: 27px; }
  .section-heading p { font-size: 13px; }
  .feature-tabs { gap: 2px; margin: 27px 0 25px; }
  .feature-tabs button { padding: 10px 12px; font-size: 12px; }
  .feature-grid { grid-template-columns: 1fr; gap: 10px; }
  .feature-item { padding: 20px; gap: 17px; border-radius: 12px; }
  .feature-icon { width: 40px; height: 40px; }
  .feature-item h3 { font-size: 14px; margin-bottom: 5px; }
  .feature-item p { font-size: 12px; }
  .feature-panel { min-height: 200px; }
  .category-note { font-size: 11px; text-align: left; padding: 0 4px; }
  .local-note { margin-top: 29px; padding: 20px 17px; gap: 11px; }
  .local-note strong { font-size: 12px; }
  .local-note span { font-size: 11px; }
  .local-note .icon { width: 19px; height: 19px; }
  .faq-section { grid-template-columns: 1fr; gap: 33px; padding-top: 40px; padding-bottom: 45px; }
  .faq-heading h2 { font-size: 27px; }
  .faq-heading p { font-size: 13px; }
  .faq-list summary { font-size: 13px; }
  .closing-section { padding-top: 45px; padding-bottom: 50px; }
  .closing-section h2 { font-size: 23px; }
  .closing-section p { font-size: 12px; }
  .site-footer { flex-direction: column; align-items: center; gap: 18px; text-align: center; font-size: 10px; }
  .site-footer > div { justify-content: center; gap: 20px; }
  .platform-dialog { padding: 32px 23px 28px; }
  .platform-dialog h2 { font-size: 21px; }
}
@media (max-width: 360px) { .header-inner { padding: 0 15px; } .nav-start .icon { display: none; } .brand { font-size: 14px; } .hero { padding-left: 16px; padding-right: 16px; } h1 { font-size: 40px; } .platform-button { font-size: 12px; } .platform-button .icon { width: 18px; height: 18px; } .feature-tabs button { padding: 10px 9px; } }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } *, *::before, *::after { transition: none !important; animation: none !important; } }