/* ==========================================================================
   汗汗漫画 · 站点样式（单文件共享）
   配色档位：晴空蓝主 + 鲜橙辅 + 嫩芽绿点缀；底色 浅天青白 + 浅天蓝段 + 浅米黄段
   ========================================================================== */

:root{
  --sky:#2AA5E3;      --sky-l:#E4F3FC;   --sky-d:#1A6FA8;   --sky-dd:#0E4A73;
  --or:#FF8A3D;       --or-l:#FFEEE2;    --or-d:#D9631C;
  --leaf:#8FD14F;     --leaf-l:#EEF9E0;
  --star:#F6A623;
  --ink:#22303C;      --ink2:#45596A;    --ink3:#71879A;
  --bg:#FBFDFF;       --bg-blue:#EFF8FD; --bg-warm:#FFFBEF;
  --line:#DCEAF3;     --card:#FFFFFF;
  --foot:#0B2C42;
  --sh:0 12px 30px rgba(14,74,115,.10);
  --sh-lg:0 24px 54px rgba(14,74,115,.16);
  --r:18px;
}

*,*::before,*::after{box-sizing:border-box}

@font-face{
  font-family:'Comfortaa';
  src:url('../fonts/comfortaa-latin.woff2') format('woff2');
  font-weight:700;font-style:normal;font-display:swap;
}

html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}

body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",
              "Helvetica Neue",Arial,sans-serif;
  font-size:16.5px;
  line-height:1.85;
  letter-spacing:.01em;
}

img{max-width:100%;height:auto;display:block}
a{color:var(--sky-d);text-decoration:none}
a:hover{color:var(--or-d)}
.num{font-family:'Comfortaa',"Trebuchet MS",Arial,sans-serif;font-weight:700;letter-spacing:0}

.wrap{max-width:1140px;margin:0 auto;padding:0 24px}
.wrap-narrow{max-width:920px;margin:0 auto;padding:0 24px}

.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}

/* ── 顶部导航 ────────────────────────────────────────── */
.hd{
  position:sticky;top:0;z-index:40;
  background:rgba(255,255,255,.92);
  -webkit-backdrop-filter:saturate(1.6) blur(10px);
  backdrop-filter:saturate(1.6) blur(10px);
  border-bottom:1px solid var(--line);
}
.hd-in{
  max-width:1140px;margin:0 auto;
  padding:12px 24px;
  display:flex;align-items:center;gap:18px;
}
.brand{display:flex;align-items:center;gap:11px;flex:0 0 auto}
.brand img{width:44px;height:44px;border-radius:12px;flex:0 0 auto}
.brand-txt{line-height:1.15}
.brand-txt b{display:block;font-size:20px;letter-spacing:.02em;color:var(--ink)}
.brand-txt i{display:block;font-style:normal;font-size:11.5px;color:var(--ink3);letter-spacing:.14em}
.nav{margin-left:auto;display:flex;align-items:center;gap:6px;flex-wrap:wrap}
.nav a{
  display:inline-block;padding:8px 13px;border-radius:999px;
  font-size:15.5px;color:var(--ink2);border:1px solid transparent;
}
.nav a:hover{background:var(--sky-l);color:var(--sky-dd);border-color:#CFE7F7}
.nav a.on{background:var(--sky);color:#fff;border-color:var(--sky)}

/* 下载按钮：实底 + 45° 浅色斜纹 + 全圆角胶囊 */
.btn{
  display:inline-flex;align-items:center;gap:9px;
  padding:13px 26px;border-radius:999px;
  background-color:var(--sky);
  background-image:repeating-linear-gradient(45deg,
      rgba(255,255,255,.13) 0 6px, transparent 6px 12px);
  color:#fff !important;
  font-size:16.5px;font-weight:700;letter-spacing:.02em;
  box-shadow:0 10px 22px rgba(42,165,227,.34);
  transition:transform .18s ease,box-shadow .18s ease;
  white-space:nowrap;
}
.btn:hover{transform:translateY(-2px);box-shadow:0 16px 30px rgba(42,165,227,.40)}
.btn:active{transform:translateY(0)}
.btn i{
  width:18px;height:18px;flex:0 0 auto;
  background:rgba(255,255,255,.9);
  -webkit-mask:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath fill='%23000' d='M12 3a1.2 1.2 0 0 1 1.2 1.2v9.1l3-3a1.2 1.2 0 0 1 1.7 1.7l-5 5a1.2 1.2 0 0 1-1.7 0l-5-5a1.2 1.2 0 0 1 1.7-1.7l3 3V4.2A1.2 1.2 0 0 1 12 3zM4.4 19.2h15.2a1.2 1.2 0 0 1 0 2.4H4.4a1.2 1.2 0 0 1 0-2.4z'/%3E%3C/svg%3E") center/18px no-repeat;
  mask:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath fill='%23000' d='M12 3a1.2 1.2 0 0 1 1.2 1.2v9.1l3-3a1.2 1.2 0 0 1 1.7 1.7l-5 5a1.2 1.2 0 0 1-1.7 0l-5-5a1.2 1.2 0 0 1 1.7-1.7l3 3V4.2A1.2 1.2 0 0 1 12 3zM4.4 19.2h15.2a1.2 1.2 0 0 1 0 2.4H4.4a1.2 1.2 0 0 1 0-2.4z'/%3E%3C/svg%3E") center/18px no-repeat;
}
.btn--hd{padding:10px 20px;font-size:15px}
/* 头部按钮走暖色，与蓝色导航选中态拉开层次 */
.hd .btn--hd{background-color:var(--or);box-shadow:0 8px 18px rgba(217,99,28,.30)}
.hd .btn--hd:hover{box-shadow:0 12px 24px rgba(217,99,28,.36)}
.btn--or{background-color:var(--or);box-shadow:0 10px 22px rgba(217,99,28,.32)}
.btn--or:hover{box-shadow:0 16px 30px rgba(217,99,28,.38)}
.btn--ghost{
  background:#fff;background-image:none;color:var(--sky-d) !important;
  border:1px solid #CFE7F7;box-shadow:none;font-weight:600;
}
.btn--ghost:hover{background:var(--sky-l);box-shadow:none}

/* ── Hero ─────────────────────────────────────────────── */
.hero{position:relative;overflow:hidden;
  background:linear-gradient(152deg,#FDFEFF 0%,#EAF5FD 46%,#F3FBEC 100%);
  border-bottom:1px solid var(--line)}
.hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:
    linear-gradient(45deg, rgba(42,165,227,.075) 25%, transparent 25%, transparent 75%, rgba(42,165,227,.075) 75%),
    linear-gradient(45deg, rgba(42,165,227,.075) 25%, transparent 25%, transparent 75%, rgba(42,165,227,.075) 75%);
  background-size:44px 44px;background-position:0 0,22px 22px;
  -webkit-mask-image:linear-gradient(158deg,#000 0%,rgba(0,0,0,.35) 52%,transparent 82%);
  mask-image:linear-gradient(158deg,#000 0%,rgba(0,0,0,.35) 52%,transparent 82%);
}
.hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:
    radial-gradient(620px 400px at 10% 4%, rgba(42,165,227,.16), transparent 70%),
    radial-gradient(520px 340px at 94% 14%, rgba(255,138,61,.13), transparent 72%),
    radial-gradient(620px 440px at 58% 98%, rgba(143,209,79,.15), transparent 74%);
}
.hero-in{
  position:relative;z-index:2;
  max-width:1140px;margin:0 auto;
  padding:62px 24px 70px;
  display:grid;grid-template-columns:1.06fr .94fr;gap:52px;align-items:center;
}
.pill{
  display:inline-flex;align-items:center;gap:9px;
  padding:7px 16px 7px 12px;border-radius:999px;
  background:#fff;border:1px solid #CFE7F7;
  font-size:13.5px;color:var(--sky-d);font-weight:600;
  box-shadow:0 6px 16px rgba(14,74,115,.07);
}
.pill b{width:9px;height:9px;border-radius:50%;background:var(--leaf);box-shadow:0 0 0 4px var(--leaf-l)}
h1{
  margin:19px 0 0;
  font-size:clamp(31px,4.4vw,50px);
  line-height:1.24;letter-spacing:.005em;font-weight:800;
  color:var(--ink);
}
h1 em{font-style:normal;color:var(--sky-d);
  background:linear-gradient(180deg,transparent 66%,rgba(143,209,79,.45) 66%);padding:0 3px}
.lead{
  margin:18px 0 0;max-width:620px;
  font-size:17px;line-height:1.88;color:var(--ink2);
}
.hero-cta{margin-top:28px;display:flex;flex-wrap:wrap;gap:14px;align-items:center}
.hero-note{margin:16px 0 0;font-size:13.5px;color:var(--ink3)}

/* 手机主视觉 */
.device{
  position:relative;margin:0 auto;max-width:330px;
  background:#fff;border-radius:36px;padding:12px;
  box-shadow:0 0 0 8px rgba(255,255,255,.85), 0 28px 64px rgba(14,74,115,.22);
}
.device img{width:100%;height:auto;border-radius:27px}
.device::after{
  content:"";position:absolute;left:50%;transform:translateX(-50%);
  bottom:-26px;width:118px;height:9px;border-radius:999px;
  background:rgba(14,74,115,.10);
}
.device-tag{
  position:absolute;right:-14px;top:74px;
  background:var(--or);color:#fff;font-size:13px;font-weight:700;
  padding:8px 14px;border-radius:999px;
  box-shadow:0 10px 22px rgba(217,99,28,.34);
}

/* ── 数据信任条 ───────────────────────────────────────── */
.stats{background:#fff;border-bottom:1px solid var(--line)}
.stats-in{
  max-width:1140px;margin:0 auto;padding:26px 24px;
  display:grid;grid-template-columns:repeat(4,1fr);gap:18px;
}
.stat{text-align:center;padding:6px 10px}
.stat b{display:block;font-size:29px;color:var(--sky-dd);line-height:1.2}
.stat b span{font-size:15px;color:var(--ink3);margin-left:3px}
.stat p{margin:5px 0 0;font-size:13.5px;color:var(--ink3);letter-spacing:.03em}

/* ── 内页横幅（无主视觉图）────────────────────────────── */
.page-hero{
  position:relative;overflow:hidden;
  background:linear-gradient(150deg,#FDFEFF 0%,#EAF5FD 52%,#F2FBEC 100%);
  border-bottom:1px solid var(--line);
}
.page-hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:
    linear-gradient(45deg, rgba(42,165,227,.07) 25%, transparent 25%, transparent 75%, rgba(42,165,227,.07) 75%),
    linear-gradient(45deg, rgba(42,165,227,.07) 25%, transparent 25%, transparent 75%, rgba(42,165,227,.07) 75%);
  background-size:44px 44px;background-position:0 0,22px 22px;
  -webkit-mask-image:linear-gradient(150deg,#000 0%,transparent 76%);
  mask-image:linear-gradient(150deg,#000 0%,transparent 76%);
}
.page-hero::after{
  content:"";position:absolute;top:0;left:0;right:0;height:5px;
  background:linear-gradient(90deg,var(--sky),var(--leaf) 55%,var(--or));
}
.page-hero-in{
  position:relative;z-index:2;
  max-width:1140px;margin:0 auto;padding:48px 24px 46px;
}
.page-hero h1{margin-top:16px}
.page-hero .lead{margin-top:16px}

/* ── 通用区块 ─────────────────────────────────────────── */
.sec{padding:66px 0}
/* 站内锚点跳转时，目标标题不要被吸顶导航盖住 */
.sec-h,.prose h2,.faq-list,.tbl-scroll{scroll-margin-top:88px}
.sec--blue{background:var(--bg-blue)}
.sec--warm{background:var(--bg-warm)}
.sec--white{background:#fff}
.sec-h{margin:0 0 10px;font-size:clamp(24px,2.8vw,33px);line-height:1.32;font-weight:800;color:var(--ink)}
.sec-sub{margin:0 0 30px;font-size:15.5px;color:var(--ink3)}
.sec-tag{
  display:inline-block;margin-bottom:12px;padding:5px 13px;border-radius:999px;
  background:var(--leaf-l);color:#4C7A1E;font-size:12.5px;font-weight:700;letter-spacing:.08em;
}
.sec-tag--or{background:var(--or-l);color:var(--or-d)}
.sec-tag--sky{background:var(--sky-l);color:var(--sky-d)}

/* 功能卡 */
.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.grid2{display:grid;grid-template-columns:repeat(2,1fr);gap:22px}
.card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r);
  padding:26px 24px;box-shadow:var(--sh);
  transition:transform .2s ease,box-shadow .2s ease;
}
.card:hover{transform:translateY(-3px);box-shadow:var(--sh-lg)}
.card h3{margin:0 0 10px;font-size:19.5px;line-height:1.45;color:var(--ink)}
.card p{margin:0;font-size:15px;line-height:1.82;color:var(--ink2)}
.ico{
  width:46px;height:46px;border-radius:14px;margin-bottom:14px;
  display:flex;align-items:center;justify-content:center;
  background:var(--sky-l);color:var(--sky-d);
}
.ico svg{width:24px;height:24px;display:block}
.ico--or{background:var(--or-l);color:var(--or-d)}
.ico--leaf{background:var(--leaf-l);color:#4C7A1E}

/* 预览栅格 */
.shots{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.shot{margin:0}
.shot-img{
  background:#fff;border-radius:24px;padding:9px;
  box-shadow:0 0 0 1px var(--line), var(--sh);
}
.shot-img img{width:100%;height:auto;border-radius:17px}
.shot figcaption{
  margin:11px 2px 0;font-size:14px;color:var(--ink3);line-height:1.7;
}
.shot figcaption b{color:var(--ink);font-weight:700}

/* 深度内容入口 */
.entry{
  display:block;background:#fff;border:1px solid var(--line);border-radius:var(--r);
  padding:24px 22px;box-shadow:var(--sh);transition:transform .2s ease,box-shadow .2s ease;
}
.entry:hover{transform:translateY(-3px);box-shadow:var(--sh-lg)}
.entry span{font-size:12.5px;font-weight:700;letter-spacing:.1em;color:var(--or-d)}
.entry h3{margin:9px 0 8px;font-size:20px;color:var(--ink)}
.entry p{margin:0;font-size:14.5px;line-height:1.8;color:var(--ink2)}
.entry u{display:inline-block;margin-top:12px;text-decoration:none;font-size:14.5px;font-weight:700;color:var(--sky-d)}
.entry:hover u{color:var(--or-d)}

/* 评价 */
.rev{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:24px 22px;box-shadow:var(--sh)}
.rev-top{display:flex;align-items:center;gap:12px;margin-bottom:12px}
.ava{
  width:42px;height:42px;border-radius:50%;flex:0 0 auto;
  display:flex;align-items:center;justify-content:center;
  background:linear-gradient(140deg,var(--sky),var(--sky-dd));
  color:#fff;font-size:16px;font-weight:700;
}
.rev-top b{font-size:15.5px;color:var(--ink);display:block;line-height:1.4}
.rev-top i{font-style:normal;font-size:12.5px;color:var(--ink3)}
.rev p{margin:0;font-size:15px;line-height:1.84;color:var(--ink2)}
.stars{margin:12px 0 0;font-size:13.5px;color:var(--star);letter-spacing:2px}
.stars span{color:var(--ink3);letter-spacing:0;margin-left:6px}

/* FAQ */
.faq-list{display:grid;gap:12px}
details{
  background:#fff;border:1px solid var(--line);border-radius:14px;
  padding:0 20px;box-shadow:0 6px 18px rgba(14,74,115,.06);
}
details[open]{border-color:#CFE7F7}
summary{
  cursor:pointer;list-style:none;padding:17px 30px 17px 0;position:relative;
  font-size:16.5px;font-weight:700;color:var(--ink);line-height:1.6;
}
summary::-webkit-details-marker{display:none}
summary::after{
  content:"+";position:absolute;right:2px;top:50%;transform:translateY(-50%);
  color:var(--sky);font-size:22px;font-weight:700;line-height:1;
}
details[open] summary::after{content:"\2013";color:var(--or)}
details p{margin:0 0 18px;font-size:15px;line-height:1.86;color:var(--ink2)}
details p:first-of-type{margin-top:-2px}

/* 正文排版（内页） */
.prose{max-width:920px}
.prose h2{margin:44px 0 12px;font-size:clamp(21px,2.4vw,27px);line-height:1.4;color:var(--ink)}
.prose h2:first-child{margin-top:0}
.prose h3{margin:26px 0 8px;font-size:18.5px;color:var(--ink)}
.prose p{margin:0 0 15px;font-size:16.5px;line-height:1.92;color:var(--ink2)}
.prose ul,.prose ol{margin:0 0 16px;padding-left:22px}
.prose li{margin:7px 0;font-size:16.5px;line-height:1.88;color:var(--ink2)}
.prose strong{color:var(--ink)}
.prose a{border-bottom:1px solid #BFE0F5}
.prose a:hover{border-color:var(--or)}

/* 步骤 */
.step{
  background:#fff;border:1px solid var(--line);border-radius:var(--r);
  padding:24px 24px 22px;box-shadow:var(--sh);position:relative;
}
.step-no{
  display:inline-flex;align-items:center;justify-content:center;
  width:34px;height:34px;border-radius:11px;margin-bottom:12px;
  background:var(--sky);color:#fff;font-size:15px;font-weight:700;
}
.step h3{margin:0 0 9px;font-size:19px;color:var(--ink)}
.step p{margin:0;font-size:15px;line-height:1.84;color:var(--ink2)}
.step p + p{margin-top:10px}

/* 提示块 */
.tip{
  background:var(--leaf-l);border:1px solid #DCEFC4;border-left:5px solid var(--leaf);
  border-radius:14px;padding:18px 22px;margin:22px 0;
}
.tip p{margin:0;font-size:15.5px;line-height:1.86;color:#3D6415}
.tip p b{color:#2F5210}
.tip--or{background:var(--or-l);border-color:#FBDCC7;border-left-color:var(--or)}
.tip--or p{color:#8A3F0D}
.tip--or p b{color:#6E3008}

/* 表格 */
.tbl-scroll{overflow-x:auto;margin:0 0 8px;border-radius:14px;border:1px solid var(--line);background:#fff}
table{border-collapse:collapse;width:100%;min-width:560px}
th,td{padding:14px 16px;text-align:left;font-size:15px;line-height:1.7;border-bottom:1px solid var(--line)}
th{background:var(--sky-l);color:var(--sky-dd);font-weight:700;white-space:nowrap}
tr:last-child td{border-bottom:0}
td b{color:var(--ink)}
.tbl-cap{font-size:14px;color:var(--ink3);margin:0 0 10px}
.tbl-note{font-size:14px;color:var(--ink3);margin:10px 0 0}
/* 复合选择器：否则 .prose p（0,1,1）会压过 .tbl-cap / .tbl-note（0,1,0） */
.prose .tbl-cap{font-size:14px;color:var(--ink3);margin:0 0 10px;line-height:1.75}
.prose .tbl-note{font-size:14px;color:var(--ink3);margin:10px 0 0;line-height:1.75}

/* 底部下载条 */
.cta{
  position:relative;overflow:hidden;
  background:linear-gradient(142deg,#0E4A73,#1A6FA8 52%,#2AA5E3);
  color:#fff;border-radius:24px;padding:46px 40px;text-align:center;
}
.cta::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:repeating-linear-gradient(45deg,rgba(255,255,255,.07) 0 8px,transparent 8px 16px);
}
.cta h2{position:relative;margin:0 0 10px;font-size:clamp(23px,2.7vw,31px);color:#fff;line-height:1.36}
.cta p{position:relative;margin:0 auto 24px;max-width:640px;font-size:15.5px;line-height:1.86;color:#CFE8F8}
.cta .btn{position:relative;background-color:var(--or)}
.cta .btn:hover{box-shadow:0 18px 34px rgba(9,40,63,.42)}

/* 页脚 */
.ft{background:var(--foot);color:#A9C6D8;padding:50px 0 28px;margin-top:0}
.ft-in{max-width:1140px;margin:0 auto;padding:0 24px;
  display:grid;grid-template-columns:1.25fr 1fr 1fr;gap:34px}
.ft-brand{display:flex;align-items:center;gap:11px;margin-bottom:14px}
.ft-brand img{width:40px;height:40px;border-radius:11px}
.ft-brand b{color:#fff;font-size:19px}
.ft h4{margin:0 0 12px;font-size:15px;color:#fff;letter-spacing:.04em}
.ft p{margin:0;font-size:14px;line-height:1.9;color:#8FB2C6}
.ft ul{margin:0;padding:0;list-style:none}
.ft li{margin:8px 0}
.ft a{color:#A9C6D8;font-size:14.5px}
.ft a:hover{color:#fff}
.ft-note{
  max-width:1140px;margin:34px auto 0;padding:20px 24px 0;
  border-top:1px solid #1B4A66;font-size:13.5px;line-height:1.9;color:#7FA3B8;
}
.ft-copy{max-width:1140px;margin:12px auto 0;padding:0 24px;font-size:13px;color:#68909F}

/* 渐显（三层保险：head 内联加 .js / IO 驱动 / scroll 兜底） */
.reveal{transition:opacity .55s ease,transform .55s ease}
.js .reveal{opacity:0;transform:translateY(18px)}
.js .reveal.is-in{opacity:1;transform:none}

@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .reveal,.js .reveal{opacity:1;transform:none;transition:none}
  .card,.entry,.btn{transition:none}
}

/* ── ≤980px ──────────────────────────────────────────── */
@media (max-width:980px){
  body{font-size:16px}
  .hd-in{padding:10px 20px;gap:12px}
  .brand img{width:40px;height:40px}
  .brand-txt b{font-size:18px}
  .nav a{padding:7px 11px;font-size:14.5px}
  .hero-in{grid-template-columns:1fr;gap:40px;padding:46px 20px 56px}
  .device{max-width:300px}
  .lead{max-width:none;font-size:16.5px}
  .stats-in{grid-template-columns:repeat(2,1fr);gap:14px;padding:22px 20px}
  .grid3,.grid2,.shots{grid-template-columns:repeat(2,1fr);gap:18px}
  .sec{padding:52px 0}
  .wrap,.wrap-narrow{padding:0 20px}
  .ft-in{grid-template-columns:1fr 1fr;gap:26px;padding:0 20px}
  .ft-note,.ft-copy{padding-left:20px;padding-right:20px}
  .cta{padding:38px 26px;border-radius:20px}
}

/* ── ≤620px ──────────────────────────────────────────── */
@media (max-width:620px){
  body{font-size:15.5px;line-height:1.84}
  .hd-in{padding:10px 14px;gap:10px}
  .brand img{width:36px;height:36px;border-radius:10px}
  .brand-txt b{font-size:16.5px}
  .brand-txt i{font-size:10.5px;letter-spacing:.08em}
  /* 头部折成两行：上排 品牌 + 下载；下排 导航横排，避免链接竖着堆成四行 */
  .hd-in{flex-wrap:wrap;row-gap:6px}
  .brand{order:1}
  .hd-in > .btn--hd{order:2;margin-left:auto}
  .nav{order:3;flex:0 0 100%;margin-left:0;justify-content:space-between;
       gap:0;flex-wrap:nowrap;border-top:1px solid var(--line);padding-top:6px}
  .nav a{padding:6px 8px;font-size:13.5px}
  .btn--hd{padding:9px 14px;font-size:13.5px}
  .btn--hd i{display:none}
  .hero-in{padding:34px 16px 44px;gap:32px}
  h1{font-size:28px}
  .lead{font-size:15.5px}
  .hero-cta{gap:10px}
  .btn{padding:12px 20px;font-size:15px}
  .device{max-width:250px;border-radius:28px;padding:9px}
  .device img{border-radius:21px}
  .device-tag{right:-6px;top:52px;font-size:12px;padding:6px 11px}
  .stats-in{grid-template-columns:repeat(2,1fr);padding:18px 14px}
  .stat b{font-size:24px}
  .grid3,.grid2,.shots{grid-template-columns:1fr;gap:16px}
  .sec{padding:42px 0}
  .sec-sub{margin-bottom:22px}
  .wrap,.wrap-narrow{padding:0 16px}
  .card{padding:22px 18px}
  .cta{padding:32px 20px;border-radius:18px}
  .cta p{font-size:14.5px}
  .ft{padding:38px 0 22px}
  .ft-in{grid-template-columns:1fr;gap:22px;padding:0 16px}
  .ft-note,.ft-copy{padding-left:16px;padding-right:16px}
  .prose p,.prose li{font-size:15.5px}
  /* 窄屏头部折成两行后总高约 124px，锚点余量要跟着放大 */
  .sec-h,.prose h2,.faq-list,.tbl-scroll{scroll-margin-top:152px}
  details{padding:0 16px}
  summary{font-size:15.5px;padding:15px 28px 15px 0}
  th,td{padding:11px 13px;font-size:14px}
}