:root { --ink:#0f1f3c; --muted:#64748b; --coral:#ff6b6b; --coral-soft:#fff0ed; --cyan:#31cbd0; --cream:#fffaf7; --line:#e8edf3; --yellow:#ffc94a; }
* { box-sizing:border-box; }
html { scroll-behavior:smooth; }
body { margin:0; color:var(--ink); background:var(--cream); font-family:"PingFang SC","Microsoft YaHei",system-ui,sans-serif; -webkit-font-smoothing:antialiased; }
a { color:inherit; text-decoration:none; }
.skip-link { position:fixed; top:-50px; left:16px; z-index:99; padding:10px 14px; color:#fff; background:var(--ink); border-radius:8px; }.skip-link:focus { top:16px; }
.section-shell { width:min(1120px, calc(100% - 48px)); margin:0 auto; }
.site-header { height:76px; width:min(1200px, calc(100% - 48px)); margin:auto; display:flex; align-items:center; justify-content:space-between; position:relative; z-index:10; }
.brand { display:inline-flex; align-items:center; gap:9px; font-size:21px; font-weight:800; letter-spacing:.04em; }.brand img { width:35px; height:35px; object-fit:contain; }.site-header nav { display:flex; gap:30px; font-size:14px; color:#475569; }.site-header nav a:hover,.header-link:hover,.footer-links a:hover,.text-link:hover { color:var(--coral); }.header-link { padding:10px 14px; border:1px solid #dfe7ef; border-radius:999px; font-size:13px; color:#475569; }
.hero { min-height:640px; display:grid; grid-template-columns:1fr .94fr; align-items:center; gap:20px; padding:58px 0 76px; }.eyebrow,.section-kicker { margin:0 0 15px; color:var(--coral); font-size:13px; letter-spacing:.16em; font-weight:800; }.hero h1 { margin:0; max-width:600px; font-size:clamp(47px,6.1vw,76px); line-height:1.1; letter-spacing:-.065em; }.hero h1 em { color:var(--coral); font-style:normal; }.hero-text { max-width:490px; margin:27px 0 0; color:#53647c; font-size:17px; line-height:1.85; }.hero-actions { display:flex; gap:12px; margin-top:32px; }.button { display:inline-flex; align-items:center; justify-content:center; gap:12px; height:51px; padding:0 22px; border-radius:14px; font-size:15px; font-weight:700; transition:transform .2s ease,box-shadow .2s ease; }.button:hover { transform:translateY(-2px); }.button-primary { color:#fff; background:var(--ink); box-shadow:0 12px 24px rgba(15,31,60,.16); }.button-plain { background:#fff; border:1px solid var(--line); }.hero-note { margin:19px 0 0; color:#94a3b8; font-size:12px; }
.hero-visual { min-height:575px; position:relative; display:grid; place-items:center; overflow:visible; }.halo { position:absolute; border-radius:50%; filter:blur(3px); opacity:.8; }.halo-coral { width:280px; height:280px; background:#ffd1c6; top:78px; left:12%; }.halo-cyan { width:240px; height:240px; background:#c6f7f6; bottom:35px; right:8%; }.phone-frame { position:relative; z-index:1; width:290px; padding:7px; background:#14213d; border:7px solid #fff; border-radius:43px; box-shadow:0 32px 60px rgba(35,42,67,.2),0 6px 16px rgba(35,42,67,.12); transform:rotate(5deg); }.phone-screen { aspect-ratio:9/16; display:flex; flex-direction:column; overflow:hidden; background:#fffaf7; border-radius:29px; }.phone-brand-art { flex:0 0 27%; overflow:hidden; background:#f6fcfc; }.phone-brand-art img { display:block; width:100%; height:auto; }.phone-mascot-art { flex:1; overflow:hidden; background:linear-gradient(135deg,#bdeeff,#fff3bf); }.phone-mascot-art img { display:block; width:100%; height:100%; object-fit:cover; object-position:center; transform:scale(1.12) translateY(-10%); transform-origin:center; }.float-card { position:absolute; z-index:2; display:grid; grid-template-columns:auto 1fr; column-gap:8px; padding:13px 16px; min-width:150px; background:rgba(255,255,255,.9); border:1px solid rgba(255,255,255,.8); border-radius:15px; box-shadow:0 14px 30px rgba(35,42,67,.12); backdrop-filter:blur(9px); }.float-card strong { font-size:13px; }.float-card small { grid-column:2; margin-top:3px; color:#8995a8; font-size:11px; }.float-card-left { top:107px; left:-8px; }.float-card-right { right:-2px; bottom:99px; }.dot { width:9px; height:9px; margin-top:3px; border-radius:50%; }.dot-coral { background:var(--coral); }.dot-cyan { background:var(--cyan); }
.intro { padding:76px 0 94px; border-top:1px solid rgba(15,31,60,.08); }.intro-grid { display:grid; grid-template-columns:1.15fr .85fr; gap:72px; align-items:start; }.intro h2,.section-heading h2,.download h2 { margin:0; font-size:clamp(32px,4vw,48px); line-height:1.18; letter-spacing:-.05em; }.intro p:last-child { margin:0; color:var(--muted); line-height:1.9; font-size:16px; }
.features { padding:46px 0 106px; }.section-heading { display:flex; justify-content:space-between; gap:40px; align-items:end; margin-bottom:34px; }.section-heading p:last-child { max-width:340px; margin:0; color:var(--muted); line-height:1.75; font-size:14px; }.feature-grid { display:grid; grid-template-columns:repeat(4,1fr); gap:15px; }.feature-card { min-height:290px; padding:24px; border-radius:22px; display:flex; flex-direction:column; }.feature-icon { display:grid; place-items:center; width:45px; height:45px; margin-bottom:auto; border-radius:14px; font-size:26px; font-weight:400; }.feature-card h3 { margin:27px 0 9px; font-size:20px; }.feature-card p { margin:0; color:#54647c; font-size:13px; line-height:1.75; }.feature-card span { margin-top:17px; font-size:12px; font-weight:700; }.feature-card-coral { background:#ffe8e4; }.feature-card-coral .feature-icon { color:#ef6262; background:#fff8f7; }.feature-card-cyan { background:#dff9f8; }.feature-card-cyan .feature-icon { color:#0ea9ad; background:#f5ffff; }.feature-card-yellow { background:#fff2c6; }.feature-card-yellow .feature-icon { color:#d58c00; background:#fffaf0; }.feature-card-ink { color:#fff; background:var(--ink); }.feature-card-ink .feature-icon { background:rgba(255,255,255,.12); }.feature-card-ink p { color:#c6d0df; }
.safety { color:#fff; background:var(--ink); }.safety-grid { display:grid; grid-template-columns:.94fr 1.06fr; gap:90px; padding:98px 0; }.section-kicker-light { color:#ffaba2; }.safety h2 { margin:0; font-size:clamp(36px,4.2vw,54px); line-height:1.16; letter-spacing:-.055em; }.safety-copy > p:not(.section-kicker) { max-width:450px; margin:24px 0; color:#c6d0df; font-size:15px; line-height:1.9; }.text-link { color:#fff; font-size:14px; font-weight:700; }.safety-list { display:grid; gap:0; padding:0; margin:0; list-style:none; }.safety-list li { display:grid; grid-template-columns:48px 1fr; gap:17px; padding:23px 0; border-top:1px solid rgba(255,255,255,.16); }.safety-list li:last-child { border-bottom:1px solid rgba(255,255,255,.16); }.safety-list span { color:#ffaba2; font-size:12px; font-weight:800; }.safety-list h3 { margin:0 0 7px; font-size:17px; }.safety-list p { margin:0; color:#c6d0df; font-size:13px; line-height:1.75; }
.download { padding:96px 0; }.download-card { display:flex; justify-content:space-between; align-items:center; gap:36px; padding:55px; border:1px solid #e3e8ef; border-radius:28px; background:linear-gradient(120deg,#fff,#fffcf8 55%,#effdfd); box-shadow:0 18px 48px rgba(15,31,60,.05); }.download-card h2 { font-size:42px; }.download-card p:last-child { max-width:500px; margin:16px 0 0; color:var(--muted); line-height:1.75; font-size:14px; }.download-actions { display:flex; gap:10px; flex-shrink:0; }.store-button { display:flex; align-items:center; gap:10px; min-width:145px; padding:11px 14px; border-radius:13px; color:#9aa7b9; border:1px solid #e5ebf1; background:#fff; pointer-events:none; }.store-mark { display:grid; place-items:center; width:27px; height:27px; color:#fff; background:#9aa7b9; border-radius:8px; font-size:12px; font-weight:800; }.store-button small,.store-button strong { display:block; }.store-button small { font-size:10px; }.store-button strong { margin-top:2px; font-size:13px; }
.site-footer { color:#c6d0df; background:#0b172e; text-align:center; }.footer-main { display:flex; justify-content:center; align-items:center; gap:72px; padding:54px 0; }.footer-brand { color:#fff; }.footer-brand img { background:rgba(255,255,255,.08); border-radius:9px; }.footer-main > div > p { margin:12px 0 0; color:#93a2b7; font-size:13px; }.footer-links { display:flex; gap:64px; }.footer-links div { display:flex; flex-direction:column; align-items:center; gap:10px; }.footer-links h3 { margin:0 0 3px; color:#fff; font-size:13px; }.footer-links a,.footer-links span { color:#aebacc; font-size:12px; }.footer-legal { padding:20px 0 27px; border-top:1px solid rgba(255,255,255,.1); }.footer-legal p { margin:0; color:#8c9bb0; font-size:11px; line-height:1.8; }.footer-legal p + p { margin-top:7px; }.filing-link { color:#aebacc; text-decoration:none; }.filing-link:hover { color:#fff; }
@media (max-width:820px) { .section-shell,.site-header { width:min(100% - 32px,1120px); }.site-header { height:64px; }.site-header nav,.header-link { display:none; }.hero { min-height:auto; grid-template-columns:1fr; padding:50px 0 39px; }.hero h1 { font-size:52px; }.hero-visual { min-height:490px; margin-top:7px; }.phone-frame { width:230px; }.float-card-left { left:0; top:67px; }.float-card-right { right:0; bottom:52px; }.intro { padding:60px 0; }.intro-grid,.safety-grid { grid-template-columns:1fr; gap:25px; }.feature-grid { grid-template-columns:repeat(2,1fr); }.feature-card { min-height:245px; }.section-heading { display:block; }.section-heading p:last-child { margin-top:16px; }.safety-grid { padding:67px 0; }.download { padding:64px 0; }.download-card { display:block; padding:32px 25px; }.download-card h2 { font-size:36px; }.download-actions { margin-top:25px; flex-wrap:wrap; }.footer-main { display:block; }.footer-links { margin-top:34px; gap:35px; }.footer-legal { padding-bottom:calc(25px + env(safe-area-inset-bottom)); } }
@media (max-width:420px) { .hero h1 { font-size:45px; }.hero-actions { flex-direction:column; }.button { width:100%; }.feature-grid { grid-template-columns:1fr; }.feature-card { min-height:205px; }.footer-links { display:block; }.footer-links div + div { margin-top:28px; } }

/* 官网手机展示：品牌与吉祥物分别排版，避免整张截图被裁切或拉伸。 */
.phone-screen { position:relative; display:block; isolation:isolate; background:linear-gradient(145deg,#effdff 0%,#fff 39%,#fff5c9 100%); }
.phone-brand-art,.phone-mascot-art { display:none; }
.phone-brand { position:relative; z-index:2; display:flex; flex-direction:column; align-items:center; padding-top:28px; color:var(--ink); text-align:center; }
.phone-brand img { width:58px; height:58px; object-fit:contain; }
.phone-brand strong { margin-top:4px; font-size:28px; letter-spacing:.08em; line-height:1.1; }
.phone-brand span { margin-top:6px; color:#52627a; font-size:9px; letter-spacing:.08em; white-space:nowrap; }
.phone-mascot-overlay { position:absolute; z-index:1; left:50%; bottom:10px; display:block; width:78%; height:auto; transform:translateX(-50%); mix-blend-mode:multiply; filter:drop-shadow(0 12px 12px rgba(22,55,74,.16)); }
.phone-mark { position:absolute; z-index:2; bottom:12px; left:0; right:0; color:#62718a; font-size:6px; letter-spacing:.35em; text-align:center; }

.app-showcase { padding:42px 0 104px; }
.app-showcase-heading { margin-bottom:38px; }
.screen-gallery { display:grid; grid-template-columns:repeat(3,1fr); gap:24px; }
.screen-shot { margin:0; overflow:hidden; border:1px solid #e6ebf1; border-radius:24px; background:#fff; box-shadow:0 16px 32px rgba(15,31,60,.08); transition:transform .2s ease,box-shadow .2s ease; }
.screen-shot:hover { transform:translateY(-5px); box-shadow:0 22px 42px rgba(15,31,60,.14); }
.screen-shot img { display:block; width:100%; aspect-ratio:874 / 1554; object-fit:cover; background:#fff; }
.screen-shot figcaption { display:flex; align-items:baseline; justify-content:space-between; gap:12px; padding:15px 18px 17px; color:var(--ink); font-size:15px; font-weight:800; }
.screen-shot figcaption span { color:#94a3b8; font-size:12px; font-weight:500; }
.showcase-note { margin:18px 0 0; color:#94a3b8; text-align:center; font-size:12px; }

@media (max-width:820px) { .app-showcase { padding:32px 0 66px; }.screen-gallery { grid-template-columns:repeat(2,1fr); gap:16px; }.screen-shot { border-radius:18px; }.screen-shot figcaption { display:block; padding:12px 13px 14px; font-size:14px; }.screen-shot figcaption span { display:block; margin-top:4px; font-size:11px; }.phone-brand { padding-top:21px; }.phone-brand img { width:46px; height:46px; }.phone-brand strong { font-size:23px; }.phone-brand span { font-size:7px; }.phone-mascot-overlay { width:80%; bottom:8px; } }

@media (max-width:420px) { .screen-gallery { gap:11px; }.screen-shot figcaption { padding:10px 11px 12px; font-size:13px; }.screen-shot figcaption span { font-size:10px; } }

/* 首屏手机：沿用最早的品牌图排版，仅替换为透明吉祥物图层。 */
.phone-brand { display:none; }
.phone-brand-art { position:relative; z-index:2; display:block; height:27%; overflow:hidden; background:linear-gradient(145deg,#f4fdff,#fffdf4); }
.phone-brand-art img { display:block; width:100%; height:auto; transform:none; }
.phone-mascot-overlay { z-index:1; bottom:17px; width:78%; mix-blend-mode:normal; filter:drop-shadow(0 12px 12px rgba(22,55,74,.15)); }
.phone-mark { z-index:3; bottom:7px; }

/* 应用界面以错位叠层展现，浏览器支持时随滚动渐入上浮。 */
.screen-gallery { position:relative; display:block; height:755px; }
.screen-shot { --screen-transform:rotate(0deg); position:absolute; width:24%; transform:var(--screen-transform); transform-origin:center center; }
.screen-shot:hover { transform:var(--screen-transform) translateY(-8px) scale(1.015); }
.screen-shot:nth-child(1) { --screen-transform:rotate(-4deg); top:68px; left:0; z-index:2; }
.screen-shot:nth-child(2) { --screen-transform:rotate(2deg); top:0; left:16%; z-index:4; }
.screen-shot:nth-child(3) { --screen-transform:rotate(-3deg); top:108px; left:34%; z-index:3; }
.screen-shot:nth-child(4) { --screen-transform:rotate(3deg); top:26px; left:53%; z-index:5; }
.screen-shot:nth-child(5) { --screen-transform:rotate(-3deg); top:142px; right:0; z-index:3; }
.screen-shot:nth-child(6) { --screen-transform:rotate(2deg); top:286px; left:46%; z-index:6; }
@keyframes screen-card-reveal { from { opacity:0; transform:var(--screen-transform) translateY(72px) scale(.92); } to { opacity:1; transform:var(--screen-transform) translateY(0) scale(1); } }
@supports (animation-timeline:view()) { .screen-shot { animation:screen-card-reveal linear both; animation-timeline:view(); animation-range:entry 5% cover 34%; } .screen-shot:nth-child(2),.screen-shot:nth-child(4) { animation-range:entry 10% cover 39%; } .screen-shot:nth-child(6) { animation-range:entry 17% cover 46%; } }

@media (max-width:820px) { .phone-brand-art { height:27%; }.phone-mascot-overlay { width:80%; bottom:13px; }.screen-gallery { height:620px; }.screen-shot { width:31%; }.screen-shot:nth-child(1) { top:62px; left:0; }.screen-shot:nth-child(2) { top:0; left:17%; }.screen-shot:nth-child(3) { top:120px; left:35%; }.screen-shot:nth-child(4) { top:24px; left:57%; }.screen-shot:nth-child(5) { top:230px; right:0; }.screen-shot:nth-child(6) { top:314px; left:34%; } }
@media (max-width:520px) { .screen-gallery { height:495px; }.screen-shot { width:38%; border-radius:14px; }.screen-shot:nth-child(1) { top:47px; left:-1%; }.screen-shot:nth-child(2) { top:0; left:20%; }.screen-shot:nth-child(3) { top:87px; left:46%; }.screen-shot:nth-child(4) { top:195px; left:2%; }.screen-shot:nth-child(5) { top:154px; right:-1%; }.screen-shot:nth-child(6) { top:270px; left:32%; } .screen-shot figcaption { padding:9px 10px 11px; font-size:12px; }.screen-shot figcaption span { display:none; } }

/* 用户指定的竖版品牌图：完整覆盖手机屏幕，不做二次拼图或裁切。 */
.phone-brand-art,.phone-mascot-overlay,.phone-mark { display:none; }
.phone-full-art { display:block; width:100%; height:100%; object-fit:cover; }

/* 紧凑的横向自动轮播；重复一组画面保证循环时无跳帧。 */
.screen-gallery { position:relative; width:100vw; height:auto; overflow:hidden; margin-left:calc(50% - 50vw); padding:12px max(24px, calc((100vw - 1120px) / 2)); }
.screen-gallery::before,.screen-gallery::after { position:absolute; z-index:2; top:0; bottom:0; width:80px; content:""; pointer-events:none; }
.screen-gallery::before { left:0; background:linear-gradient(90deg,var(--cream),rgba(255,250,247,0)); }
.screen-gallery::after { right:0; background:linear-gradient(270deg,var(--cream),rgba(255,250,247,0)); }
.screen-track { display:flex; gap:14px; width:max-content; animation:screen-marquee 38s linear infinite; will-change:transform; }
.screen-gallery:hover .screen-track { animation-play-state:paused; }
.screen-shot,.screen-shot:nth-child(n) { position:relative; top:auto; right:auto; bottom:auto; left:auto; flex:0 0 164px; width:164px; margin:0; transform:none; border-radius:16px; box-shadow:0 10px 22px rgba(15,31,60,.10); }
.screen-shot:hover { transform:translateY(-4px) scale(1.01); box-shadow:0 16px 28px rgba(15,31,60,.15); }
.screen-shot img { aspect-ratio:874 / 1554; }
.screen-shot figcaption { display:block; padding:10px 11px 11px; font-size:12px; line-height:1.25; }
.screen-shot figcaption span { display:block; margin-top:3px; font-size:10px; }
@keyframes screen-marquee { from { transform:translateX(0); } to { transform:translateX(calc(-50% - 7px)); } }
@media (prefers-reduced-motion:reduce) { .screen-track { animation:none; } }
@media (max-width:820px) { .screen-gallery { width:calc(100% + 32px); margin-left:-16px; padding:10px 16px; }.screen-gallery::before,.screen-gallery::after { width:38px; }.screen-track { gap:11px; animation-duration:32s; }.screen-shot,.screen-shot:nth-child(n) { flex-basis:132px; width:132px; border-radius:14px; }.screen-shot figcaption { padding:8px 9px 9px; font-size:11px; }.screen-shot figcaption span { display:none; } }

/* 紧凑轮播容器：限定在内容区，不再占满整条横屏。 */
.screen-gallery { width:100%; max-width:940px; margin:0 auto; padding:18px 20px; border:1px solid #e6ebf1; border-radius:26px; background:linear-gradient(135deg,#f8fbff,#fffaf8); box-shadow:0 16px 36px rgba(15,31,60,.06); }
.screen-gallery::before,.screen-gallery::after { width:55px; }
.screen-track { gap:13px; animation-duration:34s; }
.screen-shot,.screen-shot:nth-child(n) { flex:0 0 128px; width:128px; border-radius:14px; box-shadow:0 8px 18px rgba(15,31,60,.10); }
.screen-shot figcaption { padding:8px 9px 9px; font-size:11px; }
.screen-shot figcaption span { margin-top:2px; font-size:9px; }
@media (max-width:820px) { .screen-gallery { width:100%; margin:0 auto; padding:14px 12px; border-radius:20px; }.screen-gallery::before,.screen-gallery::after { width:30px; }.screen-track { gap:10px; animation-duration:30s; }.screen-shot,.screen-shot:nth-child(n) { flex-basis:112px; width:112px; }.screen-shot figcaption { padding:7px 8px 8px; font-size:10px; } }

/* 清晰、整齐的应用轮播：取消旧的旋转入场效果，说明紧随标题。 */
.app-showcase-heading { display:block; margin-bottom:26px; }
.app-showcase-heading p:last-child { max-width:480px; margin:18px 0 0; color:var(--muted); text-align:left; }
.screen-gallery { max-width:720px; margin-right:0; margin-left:auto; padding:20px 18px; }
.screen-track { gap:15px; animation-duration:36s; }
.screen-shot,.screen-shot:nth-child(n) { --screen-transform:none; flex:0 0 150px; width:150px; transform:none !important; animation:none !important; border-radius:16px; box-shadow:0 10px 20px rgba(15,31,60,.10); }
.screen-shot:hover { transform:translateY(-4px) !important; }
.screen-shot figcaption { padding:10px 11px 11px; font-size:12px; }
.screen-shot figcaption span { font-size:10px; }
@media (max-width:820px) { .app-showcase-heading p:last-child { max-width:360px; }.screen-gallery { max-width:100%; margin:0; padding:15px 12px; }.screen-track { gap:12px; animation-duration:32s; }.screen-shot,.screen-shot:nth-child(n) { flex-basis:126px; width:126px; } }

/* 宽屏：标题在左、轮播在右，二者顶部对齐。 */
@media (min-width:821px) {
  .app-showcase { display:grid; grid-template-columns:minmax(330px, .9fr) minmax(0, 1.1fr); column-gap:54px; align-items:start; }
  .app-showcase-heading { grid-column:1; grid-row:1 / span 2; margin:0; }
  .screen-gallery { grid-column:2; grid-row:1; width:100%; max-width:610px; margin:40px 0 0 auto; padding:16px 14px; }
  .showcase-note { grid-column:2; grid-row:2; width:100%; max-width:610px; margin:15px 0 0 auto; text-align:left; }
  .screen-shot,.screen-shot:nth-child(n) { flex-basis:145px; width:145px; }
}

/* 放大右侧展示区，并拉开左侧文案层级。 */
@media (min-width:821px) {
  .app-showcase-heading p:last-child { margin-top:48px; }
  .screen-gallery { max-width:700px; padding:20px 18px; }
  .showcase-note { max-width:700px; text-align:center; }
  .screen-track { gap:16px; }
  .screen-shot,.screen-shot:nth-child(n) { flex-basis:164px; width:164px; border-radius:18px; }
  .screen-shot figcaption { padding:11px 12px 12px; font-size:12px; }
}

/* 恢复原页脚上半部分，仅将最底部两行小字居中。 */
@media (min-width:821px) {
  .site-footer { text-align:left; }
  .footer-main { justify-content:space-between; align-items:flex-start; gap:0; padding:54px 0; }
  .footer-main > div:first-child { width:auto; }
  .footer-links { align-items:flex-start; gap:64px; }
  .footer-links div,.footer-links div:last-child { min-width:auto; align-items:flex-start; }
  .footer-legal { padding:20px 0 27px; text-align:center; }
}