:root{
  --wrap:1100px;
  --gap:22px;
  --brand:#1a73e8;
  --border:rgba(255,255,255,.2);
  --ink:#13213a;
  --muted:#6780a7;
  --badge:#3a89ff;
  --btn:#3b78ff;
  --btn-2:#2d63ff;
  --ring:rgba(59,120,255,.35);
  --panel:#ffffff;
  --shadow:0 10px 30px rgba(10,20,40,.12);
  --accent:#1a73e8;
  --wa-green:#2b71ff;
  --wa-dark:#111;
  --wa-gray:#555;
}

*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  font:16px/1.7 system-ui,-apple-system,Segoe UI,Arial,"PingFang SC","Microsoft YaHei",sans-serif;
  color:#111;
  background:linear-gradient(135deg,#ffffff 0%,#eef6ff 38%,#f5f9ff 70%,#fff7fc 100%) !important;
}
a{color:var(--brand);text-decoration:none}
a:hover{text-decoration:underline}
h1{margin:0 0 16px}

.wrap{max-width:var(--wrap);margin:0 auto;padding:0 16px}
.container{position:relative;max-width:1000px;margin:0 auto;padding:0 16px}

.site-header{position:fixed;left:0;top:0;width:100%;backdrop-filter:blur(10px);background:rgba(255,255,255,.75);border-bottom:1px solid var(--border);z-index:999}
.site-header .wrap{display:flex;align-items:center;justify-content:space-between;gap:16px;height:64px}
.logo{display:flex;align-items:center;gap:8px;font-weight:700;color:#111}
.logo img{height:32px}
.nav{display:flex;gap:20px}
.nav a{margin-left:14px;font-weight:500;color:#111}
.site-main{padding:88px 0 24px}
.site-footer{border-top:1px solid var(--border);background:#fff;margin-top:32px}
.site-footer .wrap{padding:18px 0;color:#666}

/* ===================== Hero（更浅背景 + 单列居中 + 图不太大） ===================== */
.wa-hero{
  position:relative;overflow:hidden;max-width:1200px;margin:36px auto 56px;
  padding:clamp(36px,5.5vw,72px) 20px;border-radius:26px;
  background:
    radial-gradient(1400px 520px at 50% -220px,rgba(255,255,255,.70) 0%,rgba(255,255,255,0) 62%),
    linear-gradient(160deg,#edf6ff 0%,#e9f2ff 28%,#eaf1ff 56%,#f2f6ff 100%);
  box-shadow:inset 0 0 0 1px rgba(255,255,255,.08);
}
.wa-hero__content{
  max-width:1120px;margin:0 auto;
  display:grid;grid-template-columns:1fr;
  align-items:center;gap:clamp(18px,3.2vw,32px);
  text-align:center;
}
.wa-badge{
  display:inline-block;padding:6px 12px;font-size:12px;letter-spacing:.08em;color:#fff;border-radius:999px;
  background:linear-gradient(135deg,var(--badge) 0%,#6aa8ff 100%);
  box-shadow:0 6px 18px rgba(63,120,255,.28),inset 0 0 0 1px rgba(255,255,255,.25);
  margin-bottom:6px
}
.wa-hero h1{
  margin:10px 0 8px;
  font-size:clamp(26px,3.6vw,40px);
  line-height:1.18;color:#fff;
  text-shadow:0 2px 10px rgba(20,40,80,.14)
}
.wa-hero h1 strong{font-weight:800}
.wa-hero p{margin:12px 0 22px;font-size:clamp(14px,1.6vw,16px);line-height:1.9;color:rgba(255,255,255,.88)}
.wa-hero__actions{display:flex;gap:14px;flex-wrap:wrap;justify-content:center}
.download-btn{
  display:flex;align-items:center;gap:10px;padding:12px 16px;min-width:168px;border-radius:14px;color:#fff;text-decoration:none;
  background:linear-gradient(180deg,var(--btn) 0%,var(--btn-2) 100%);
  box-shadow:0 8px 18px rgba(43,98,255,.28),inset 0 0 0 1px rgba(255,255,255,.22);
  transform:translateZ(0);transition:transform .16s ease,box-shadow .16s ease,filter .16s ease
}
.download-btn:hover{transform:translateY(-2px);box-shadow:0 12px 24px rgba(43,98,255,.32),inset 0 0 0 1px rgba(255,255,255,.28);filter:brightness(1.02)}
.download-btn .btn-icon{width:28px;height:28px;flex:0 0 28px;display:block;filter:drop-shadow(0 2px 6px rgba(0,0,0,.12))}
.download-btn span{line-height:1.15;font-weight:700}
.download-btn small{display:block;font-size:11px;letter-spacing:.08em;opacity:.9;font-weight:500}

/* 首图：居中且限制尺寸 */
.wa-hero__image{order:2;text-align:center;isolation:isolate}
.wa-hero__image img{
  width:min(86vw,560px);max-width:560px;height:auto;margin:8px auto 0;
  border-radius:16px;box-shadow:0 10px 26px rgba(10,20,40,.12)
}
.wa-hero__image::after{content:"";position:absolute;inset:-20px -16px -18px -16px;background:radial-gradient(600px 180px at 60% 0%,rgba(255,255,255,.35),transparent 60%);border-radius:26px;z-index:-1}

/* 宽屏下也保持单列（如果需要两列可删除此处并恢复原来的媒体查询） */
@media (max-width:920px){
  .wa-hero{border-radius:20px;padding:30px 14px 22px}
}

/* 其他模块保持不变 */
.home-hero{display:block;margin-top:10px}
.home-hero__left{display:flex;flex-direction:column;align-items:center;text-align:center;max-width:500px;margin:0 auto}
.home-logo{width:110px;height:110px;display:block;margin:6px auto 10px}
.home-title h1{margin:0;font-size:36px;font-weight:500;color:#333}
.home-subtitle{margin:6px 0 16px;font-size:16px;color:#7b8794}

.device-mac,.device-phones .phone{background:transparent !important;box-shadow:none !important;border:none !important}
.device-mac img{display:block;width:100%;max-width:400px;height:auto;margin:6px auto 8px;background:transparent !important;box-shadow:none !important;border:none !important}
.desktop-link{display:flex;justify-content:center;align-items:center;gap:8px;margin:6px 0 18px;color:#2f6cd6;font-size:14px}
.desktop-link .icon{width:16px;height:16px}
.device-phones{display:grid;grid-template-columns:repeat(2,minmax(220px,380px));gap:64px;justify-content:center;align-items:start;margin:24px 0 6px}
.device-phones .phone img{height:300px;width:auto;display:block;margin:0 auto;background:transparent !important;box-shadow:none !important;border:none !important}
.device-phones .phone figcaption{display:flex;justify-content:center;align-items:center;gap:8px;margin-top:8px;font-size:14px;color:#2f6cd6}
.device-phones .phone figcaption .icon{width:16px;height:16px}

.home-aside-floating{position:absolute;top:0;right:0;width:280px}
.aside-box{border-left:4px solid #2f6cd6;padding-left:12px}
.aside-title{font-size:14px;margin:0 0 6px;color:#2f6cd6}
.aside-news{list-style:none;margin:0;padding:0}
.aside-news li{margin:6px 0 10px}
.aside-news .d{font-size:11px;color:#7a8797;margin-bottom:2px}
.aside-news .t{font-size:12px;color:#1a3d7a;text-decoration:none;line-height:1.4}
.aside-news .t:hover{text-decoration:underline}

@media (max-width:960px){
  .home-aside-floating{position:static;width:auto;margin:0 0 16px 0}
  .home-hero__left{max-width:92vw}
  .device-phones{grid-template-columns:1fr;gap:22px}
  .device-phones .phone img{height:280px}
  .home-title h1{font-size:28px}
  .home-logo{width:96px;height:96px}
}

.why-telegram{max-width:1100px;margin:36px auto 24px;padding:0 16px}
.why-title{margin:0 0 18px;text-align:center;font-size:22px;line-height:1.4;color:#1f3147}
.why-title span{color:var(--brand)}
.features-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:28px 36px}
.feature-card{text-align:center;padding:6px 8px}
.feature-card img{width:140px;height:auto;display:block;margin:0 auto 8px;image-rendering:-webkit-optimize-contrast;will-change:transform,filter;transition:transform .2s ease,filter .2s ease}
.feature-card:hover img{transform:translateY(-4px);filter:drop-shadow(0 8px 18px rgba(26,115,232,.18))}
.feature-card h3{margin:6px 0 6px;font-size:16px;font-weight:600;color:#1f3147}
.feature-card p{margin:0;font-size:13px;line-height:1.6;color:#6b7a90}
@media (max-width:960px){.features-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:22px 24px}}
@media (max-width:560px){.features-grid{grid-template-columns:1fr;gap:18px}.feature-card img{width:128px}}

.device-mac,.phone{text-align:center;padding:6px 0 18px;background:transparent !important;border:none !important;box-shadow:none !important}
.device-mac .art img,.phone .art img{display:block;margin:0 auto;max-width:100%;height:auto;background:transparent;box-shadow:none;border:none;transition:transform .25s ease,box-shadow .25s ease}
.device-mac:hover .art img,.phone:hover .art img{transform:translateY(-4px);box-shadow:0 18px 48px rgba(26,115,232,.18)}
.desktop-link,.phone figcaption{display:flex;align-items:center;justify-content:center;gap:8px;margin-top:12px;font-size:20px;line-height:1.2}
.desktop-link b,.phone figcaption b{color:var(--accent);font-weight:700}
.icon{width:26px;height:26px}
.accent{height:4px;width:68%;margin:14px auto 0;border-radius:3px;background:var(--accent);opacity:.85;transition:width .25s ease,opacity .2s ease}
.device-mac:hover .accent,.phone:hover .accent{width:86%;opacity:1}

.wa-section{max-width:1200px;margin:80px auto;padding:0 20px;display:flex;align-items:center;gap:40px}
.wa-section.reverse{flex-direction:row-reverse}
.wa-text{flex:1}
.wa-text h2{font-size:32px;color:var(--wa-dark);margin-bottom:16px}
.wa-text p{font-size:18px;line-height:1.6;color:var(--wa-gray)}
.wa-text ul{margin:16px 0;padding-left:20px}
.wa-text ul li{margin-bottom:10px;font-size:17px;line-height:1.6;color:var(--wa-dark)}
.wa-text strong{color:var(--wa-green)}
.wa-img{flex:1;text-align:center}
.wa-img img{max-width:100%;height:auto;border-radius:12px}
@media (max-width:768px){
  .wa-section{flex-direction:column;text-align:center}
  .wa-section.reverse{flex-direction:column}
  .wa-img img{max-width:80%}
}

.whatsapp-section{text-align:center;margin:60px auto;max-width:900px}
.whatsapp-section .title{font-size:32px;font-weight:600;margin-bottom:16px;color:#111}
.whatsapp-section .desc{font-size:18px;color:#333;line-height:1.8}

.stats-section{max-width:1200px;margin:80px auto;text-align:center;padding:0 20px}
.stats-title{font-size:28px;font-weight:700;margin-bottom:48px;color:#111;line-height:1.4}
.stats-title span{color:#2b71ff}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.stat-card{background:#f9fbff;border-radius:16px;padding:32px 20px;box-shadow:0 2px 8px rgba(0,0,0,.05);transition:transform .2s ease,box-shadow .2s ease}
.stat-card:hover{transform:translateY(-6px);box-shadow:0 6px 16px rgba(0,0,0,.08)}
.stat-number{font-size:30px;font-weight:800;color:#2b71ff;margin-bottom:10px}
.stat-label{font-size:16px;color:#444}

.wa-strip{background:#eefcf1;border-radius:28px;padding:28px 18px 38px;margin:32px auto;max-width:1280px}
.wa-strip__head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin:0 6px 14px}
.wa-strip__title{font-size:clamp(24px,4.5vw,40px);line-height:1.15;margin:0;color:#0f172a}
.wa-strip__desc{margin:0;color:#334155;font-size:14.5px;max-width:720px}
.wa-strip__viewport{position:relative;display:flex;align-items:center;gap:8px;padding:8px 40px}
.wa-strip__viewport::before,.wa-strip__viewport::after{content:"";position:absolute;top:0;bottom:0;width:60px;pointer-events:none;transition:opacity .2s ease}
.wa-strip__viewport::before{left:0;background:linear-gradient(90deg,#fff 45%,rgba(233,251,227,0));opacity:0}
.wa-strip__viewport::after{right:0;background:linear-gradient(-90deg,#fff 45%,rgba(233,251,227,0));opacity:0}
.wa-strip__viewport.is-left::before{opacity:1}
.wa-strip__viewport.is-right::after{opacity:1}
.wa-carousel{display:flex;gap:16px;overflow-x:auto;scroll-snap-type:x mandatory;scroll-behavior:smooth;-webkit-overflow-scrolling:touch;padding:6px 2px;--visible:4}
.wa-carousel::-webkit-scrollbar{height:8px}
.wa-carousel::-webkit-scrollbar-thumb{background:rgba(48,36,211,.28);border-radius:999px}
@media (max-width:1100px){.wa-carousel{--visible:3}}
@media (max-width:820px){.wa-carousel{--visible:2}}
@media (max-width:520px){.wa-carousel{--visible:1}}
.wa-item{flex:0 0 calc((100% - (var(--visible) - 1) * 16px) / var(--visible));min-width:240px;background:#fff;border:1px solid rgba(11,172,46,.08);border-radius:20px;padding:18px 16px;box-shadow:0 8px 20px rgba(16,24,40,.06);scroll-snap-align:start;transition:transform .15s ease,box-shadow .15s ease,border-color .15s ease}
.wa-item:hover{transform:translateY(-2px);box-shadow:0 12px 28px rgba(16,24,40,.1);border-color:rgba(36,48,211,.45)}
.wa-item__title{font-size:16.5px;margin:0 0 8px;color:#0f172a}
.wa-item__text{font-size:14.5px;line-height:1.72;color:#334155;margin:0}
.wa-arrow{position:absolute;z-index:2;top:50%;transform:translateY(-50%);width:44px;height:44px;border-radius:50%;border:1px solid rgba(38,35,201,.16);background:#fff;color:#24d366;font-size:24px;display:flex;align-items:center;justify-content:center;cursor:pointer;transition:transform .12s ease,box-shadow .12s ease,border-color .12s ease}
.wa-arrow:hover{transform:translateY(calc(-50% - 1px));border-color:#24d366;box-shadow:0 8px 18px rgba(48,36,211,.18)}
.wa-arrow--prev{left:4px}
.wa-arrow--next{right:4px}

.wa-lite-footer{background:transparent;color:#0b1320}
.wa-lite__inner{max-width:1280px;margin:0 auto;padding:48px 20px 56px;display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:48px 40px}
.wa-lite__logo{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.wa-lite__logo-img{height:24px;width:auto;display:block}
.wa-lite__logo-text{font-size:28px;font-weight:700;letter-spacing:.2px}
.wa-lite__headline{font-size:28px;font-weight:800;margin:8px 0 6px}
.wa-lite__sub{margin:0;font-size:16px;color:#6b7280}
.wa-lite__title{margin:0 0 16px;font-size:22px;font-weight:800}
.wa-lite__list{list-style:none;margin:0;padding:0}
.wa-lite__link{display:block;padding:10px 0;font-size:20px;color:#0b1320;text-decoration:none;transition:color .15s ease,opacity .15s ease}
.wa-lite__link:hover{color:#2b71ff;opacity:.9}
@media (max-width:900px){
  .wa-lite__inner{grid-template-columns:1fr 1fr}
  .wa-lite__headline{font-size:24px}
  .wa-lite__link{font-size:18px}
}

.搜狗输入法-section{padding:60px 20px;text-align:center}
.搜狗输入法-section .text-box{max-width:800px;margin:0 auto}
.搜狗输入法-section .title{font-size:28px;font-weight:700;color:#1f2a44;margin-bottom:18px;line-height:1.3}
.搜狗输入法-section .desc{font-size:16px;color:#5f6b85;line-height:1.8;margin:0;white-space:pre-line}