:root{
  --brand:#D4743C;          /* 原型 --brand-primary */
  --brand-deep:#C46A3A;     /* 原型主按钮/强调色 */
  --brand-ink:#7E2410;
  --sand:#E6DCC8;           /* 原型 --brand-bg */
  --cream:#F8F4EE;
  --paper:#FFFCF8;
  --warm:#F5F0E8;
  --peach:#F7E5D8;
  --ink:#1A1614;
  --ink-2:#4A423C;
  --muted:#8A7F75;
  --line:rgba(196,106,58,.16);
  --shadow-s:0 2px 10px rgba(122,84,56,.06);
  --shadow-m:0 8px 25px rgba(122,84,56,.08);
  --shadow-l:0 24px 60px -18px rgba(122,84,56,.22);
  --r-lg:32px; --r-md:24px; --r-sm:16px;
  --sans:"PingFang SC","Noto Sans CJK SC","Microsoft YaHei",-apple-system,sans-serif;
  --serif:"Noto Serif CJK SC","Songti SC",serif;
}
*{margin:0;padding:0;box-sizing:border-box}
body{font-family:var(--sans);color:var(--ink);background:var(--cream);
  -webkit-font-smoothing:antialiased;line-height:1.6;overflow-x:hidden}
img,svg{display:block}
a{color:inherit;text-decoration:none}
.wrap{width:100%;max-width:1200px;margin:0 auto;padding:0 32px}

/* ---------- NAV ---------- */
.nav{position:sticky;top:0;z-index:60;background:rgba(248,244,238,.82);
  backdrop-filter:saturate(180%) blur(16px);border-bottom:1px solid var(--line)}
.nav-in{height:78px;display:flex;align-items:center;gap:44px}
.logo{display:flex;flex-direction:column;line-height:1;flex:none}
.logo b{font-family:var(--serif);font-weight:700;font-size:25px;color:var(--brand);
  letter-spacing:1px}
.logo span{font-size:9px;color:var(--muted);letter-spacing:1.6px;margin-top:5px}
.nav-links{display:flex;gap:34px;font-size:15px;color:var(--ink-2);flex:1}
.nav-links a{position:relative;padding:4px 0;transition:color .2s}
.nav-links a::after{content:"";position:absolute;left:0;bottom:-2px;width:0;height:2px;
  background:var(--brand);border-radius:2px;transition:width .25s}
.nav-links a:hover{color:var(--brand-deep)}
.nav-links a:hover::after{width:100%}
.btn{display:inline-flex;align-items:center;gap:8px;height:46px;padding:0 26px;
  border-radius:999px;font-size:15px;font-weight:600;cursor:pointer;transition:.24s;flex:none}
.btn-p{background:var(--brand-deep);color:#fff;box-shadow:0 8px 20px -6px rgba(196,106,58,.55)}
.btn-p:hover{background:var(--brand-ink);transform:translateY(-2px);
  box-shadow:0 14px 28px -8px rgba(126,36,16,.5)}
.btn-g{background:transparent;color:var(--brand-deep);border:1.5px solid var(--brand-deep)}
.btn-g:hover{background:rgba(196,106,58,.08);transform:translateY(-2px)}
.nav-cta{display:flex;gap:12px;flex:none}

/* ---------- HERO ---------- */
.hero{position:relative;padding:84px 0 100px;overflow:hidden;
  background:linear-gradient(170deg,#FFFCF8 0%,#F1E7D6 46%,var(--sand) 100%)}
.hero::before{content:"";position:absolute;width:760px;height:760px;right:-240px;top:-320px;
  border-radius:50%;background:radial-gradient(circle,rgba(212,116,60,.14),transparent 66%)}
.hero::after{content:"";position:absolute;width:520px;height:520px;left:-200px;bottom:-280px;
  border-radius:50%;background:radial-gradient(circle,rgba(212,116,60,.10),transparent 68%)}
.hero-in{position:relative;display:grid;grid-template-columns:1.06fr .94fr;gap:70px;align-items:center}
.pill{display:inline-flex;align-items:center;gap:9px;height:34px;padding:0 18px;
  border-radius:999px;background:rgba(255,255,255,.72);border:1px solid var(--line);
  font-size:13px;color:var(--brand-deep);font-weight:600;letter-spacing:.3px}
.pill i{width:6px;height:6px;border-radius:50%;background:var(--brand);display:block}
h1{font-family:var(--serif);font-size:60px;line-height:1.22;font-weight:700;
  letter-spacing:-.5px;margin:26px 0 0}
h1 em,h2 em{font-style:normal;color:var(--brand-deep);
  background:linear-gradient(180deg,transparent 56%,rgba(212,116,60,.24) 56%,
    rgba(212,116,60,.24) 93%,transparent 93%)}
h2 em{background:linear-gradient(180deg,transparent 60%,rgba(212,116,60,.2) 60%,
  rgba(212,116,60,.2) 93%,transparent 93%)}
.lead{font-size:17px;color:var(--ink-2);max-width:470px;margin-top:24px;line-height:1.85}
.slogan{display:flex;align-items:center;gap:12px;margin-top:20px;font-size:14px;
  color:var(--brand-deep);font-weight:600;letter-spacing:1.4px}
.slogan span{width:26px;height:1.5px;background:var(--brand);display:block}
.hero-cta{display:flex;gap:14px;margin-top:38px}
.stats{display:flex;gap:44px;margin-top:52px;padding-top:30px;border-top:1px solid var(--line)}
.stat b{font-family:var(--serif);font-size:31px;color:var(--brand-deep);display:block;line-height:1.1}
.stat span{font-size:13px;color:var(--muted);letter-spacing:.4px}

/* phone mock */
.phone-wrap{position:relative;display:flex;justify-content:center}
.phone{width:330px;border-radius:44px;background:#fff;padding:11px;
  box-shadow:0 40px 70px -22px rgba(90,60,35,.4),0 0 0 1px rgba(255,255,255,.9)}
.phone::before{content:"";position:absolute;width:120px;height:120px;border-radius:50%;
  right:-46px;top:52px;background:radial-gradient(circle,rgba(212,116,60,.26),transparent 70%);
  z-index:-1}
.phone::after{content:"";position:absolute;width:150px;height:150px;border-radius:50%;
  left:-52px;bottom:40px;background:radial-gradient(circle,rgba(212,116,60,.16),transparent 70%);
  z-index:-1}
.screen{height:640px;border-radius:34px;overflow:hidden;position:relative;
  background:linear-gradient(180deg,#FFFCF8 0%,var(--sand) 100%);display:flex;flex-direction:column}
.notch{position:absolute;left:50%;transform:translateX(-50%);top:9px;width:88px;height:22px;
  background:#1A1614;border-radius:12px;z-index:5}
.p-top{padding:38px 22px 0;display:flex;align-items:flex-start;justify-content:space-between;flex:none}
.p-logo b{font-family:var(--serif);font-size:21px;color:var(--brand);letter-spacing:1px;display:block;line-height:1.1}
.p-logo span{font-size:7.5px;color:var(--muted);letter-spacing:1.3px}
.p-set{width:28px;height:28px;border-radius:50%;background:rgba(255,255,255,.8);
  border:1px solid var(--line);display:grid;place-items:center}
.p-hello{padding:20px 22px 0;flex:none}
.p-hello h3{font-size:20px;font-weight:700;line-height:1.4}
.p-hello p{font-size:11.5px;color:var(--muted);margin-top:9px}
.p-grid{padding:20px 22px 0;display:grid;grid-template-columns:1fr 1fr;gap:12px;flex:none}
.p-card{background:#fff;border-radius:18px;padding:14px 10px 13px;text-align:center;
  box-shadow:var(--shadow-s)}
.p-ic{width:38px;height:38px;border-radius:13px;background:var(--peach);display:grid;
  place-items:center;margin:0 auto 9px}
.p-card b{font-size:12.5px;display:block;line-height:1.3}
.p-card span{font-size:9.5px;color:var(--muted);display:block;margin-top:3px}
.p-sep{height:1px;background:var(--line);margin:20px 22px 0;flex:none}
.p-quick{padding:18px 22px;display:flex;justify-content:space-between;flex:none}
.p-q{display:flex;flex-direction:column;align-items:center;gap:7px;font-size:10.5px;color:var(--ink-2)}
.p-qi{width:34px;height:34px;border-radius:12px;background:#fff;display:grid;place-items:center;
  box-shadow:var(--shadow-s)}
.p-tab{margin-top:auto;height:62px;background:#fff;display:flex;border-top:1px solid rgba(0,0,0,.04);
  padding-bottom:8px;flex:none}
.p-tab div{flex:1;display:flex;flex-direction:column;align-items:center;gap:4px;
  font-size:9.5px;color:var(--muted);padding-top:9px}
.p-tab div.on{color:var(--brand-deep);font-weight:600}
.p-tag{position:absolute;right:-14px;top:250px;background:#fff;border-radius:14px;
  padding:9px 13px;box-shadow:var(--shadow-m);display:flex;align-items:center;gap:8px;
  font-size:11px;font-weight:600;color:var(--brand-deep)}
.p-tag i{width:7px;height:7px;border-radius:50%;background:var(--brand);display:block}

/* ---------- SECTION ---------- */
.sec{padding:88px 0}
.sec:has(.cta){padding-bottom:0}
.sec-alt{background:linear-gradient(180deg,var(--cream) 0%,#F3EDE2 100%)}
.stag{display:inline-flex;align-items:center;gap:8px;font-size:12.5px;letter-spacing:2.2px;
  color:var(--brand-deep);font-weight:700;text-transform:uppercase}
.stag::before{content:"";width:22px;height:1.5px;background:var(--brand);display:block}
h2{font-family:var(--serif);font-size:42px;line-height:1.32;font-weight:700;margin:16px 0 0;letter-spacing:-.3px}
h2 em{font-style:normal;color:var(--brand-deep)}
.sub{font-size:16px;color:var(--ink-2);margin-top:16px;max-width:560px;line-height:1.8}
.shead{display:flex;align-items:flex-end;justify-content:space-between;gap:40px;margin-bottom:56px}
.shead .sub{margin-bottom:4px}

/* feature cards */
.f-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.f-card{background:#fff;border-radius:var(--r-md);padding:32px 26px 28px;box-shadow:var(--shadow-m);
  position:relative;overflow:hidden;transition:.3s;border:1px solid rgba(255,255,255,.9)}
.f-card::before{content:"";position:absolute;inset:0;background:linear-gradient(180deg,
  rgba(212,116,60,.05),transparent 46%);opacity:0;transition:.3s}
.f-card:hover{transform:translateY(-7px);box-shadow:var(--shadow-l)}
.f-card:hover::before{opacity:1}
.f-ic{width:56px;height:56px;border-radius:18px;background:var(--peach);display:grid;
  place-items:center;margin-bottom:22px;position:relative}
.f-card h3{font-size:19px;font-weight:700;position:relative}
.f-card .en{font-size:10.5px;color:var(--muted);letter-spacing:1.2px;margin-top:5px;position:relative}
.f-card p{font-size:13.5px;color:var(--ink-2);margin-top:14px;line-height:1.75;position:relative}
.f-link{display:inline-flex;align-items:center;gap:5px;margin-top:20px;font-size:13px;
  color:var(--brand-deep);font-weight:600;position:relative}

/* dual channel */
.d-grid{display:grid;grid-template-columns:1fr 1fr;gap:26px}
.d-card{background:#fff;border-radius:var(--r-lg);padding:40px 38px;box-shadow:var(--shadow-m);
  position:relative;overflow:hidden;transition:.3s}
.d-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-l)}
.d-card.hi{background:linear-gradient(165deg,#fff 0%,#FDF3EA 100%)}
.d-badge{position:absolute;right:30px;top:34px;font-size:11px;font-weight:700;letter-spacing:1px;
  color:#fff;background:var(--brand-deep);padding:6px 13px;border-radius:999px}
.d-badge.ghost{background:rgba(196,106,58,.12);color:var(--brand-deep)}
.d-ic{width:58px;height:58px;border-radius:19px;background:var(--peach);display:grid;
  place-items:center;margin-bottom:24px}
.d-card h3{font-size:25px;font-weight:700}
.d-card .en{font-size:11px;color:var(--muted);letter-spacing:1.4px;margin-top:6px}
.d-card>p{font-size:14.5px;color:var(--ink-2);margin-top:16px;line-height:1.8}
.d-list{margin-top:24px;display:flex;flex-direction:column;gap:11px}
.d-list li{list-style:none;display:flex;align-items:flex-start;gap:10px;font-size:13.5px;color:var(--ink-2)}
.d-list svg{flex:none;margin-top:4px}

/* flow */
.flow{display:grid;grid-template-columns:repeat(3,1fr);gap:24px 26px}
.fl{position:relative;background:#fff;border-radius:var(--r-md);padding:28px 26px 26px;
  box-shadow:var(--shadow-s);border:1px solid rgba(230,220,200,.7);transition:.3s}
.fl:hover{transform:translateY(-5px);box-shadow:var(--shadow-m);border-color:rgba(196,106,58,.3)}
.fl-n{font-family:var(--serif);font-size:40px;line-height:1;color:rgba(212,116,60,.24);
  font-weight:700;display:block;margin-bottom:12px}
.fl h4{font-size:16.5px;font-weight:700}
.fl p{font-size:13px;color:var(--ink-2);margin-top:9px;line-height:1.75}

/* story */
.story{display:grid;grid-template-columns:.92fr 1.08fr;gap:60px;align-items:center}
.story-card{background:#fff;border-radius:var(--r-lg);padding:46px 42px;box-shadow:var(--shadow-l);
  position:relative;overflow:hidden}
.story-card::after{content:"";position:absolute;width:280px;height:280px;border-radius:50%;
  right:-120px;top:-120px;background:radial-gradient(circle,rgba(212,116,60,.11),transparent 70%)}
.story-ic{width:66px;height:66px;border-radius:22px;background:var(--peach);display:grid;
  place-items:center;margin-bottom:26px;position:relative}
.story-card h3{font-size:27px;font-weight:700;position:relative}
.story-card h3 span{display:block;font-size:14px;color:var(--brand-deep);font-weight:600;margin-top:9px}
.story-card p{font-size:14.5px;color:var(--ink-2);margin-top:20px;line-height:1.9;position:relative}
.story-card p.hl{color:var(--brand-deep);font-weight:600}
.tl{position:relative;padding-left:34px}
.tl::before{content:"";position:absolute;left:7px;top:8px;bottom:8px;width:2px;
  background:linear-gradient(180deg,var(--brand),rgba(212,116,60,.16))}
.tl-i{position:relative;padding-bottom:34px}
.tl-i:last-child{padding-bottom:0}
.tl-i::before{content:"";position:absolute;left:-33px;top:5px;width:16px;height:16px;
  border-radius:50%;background:#fff;border:3.5px solid var(--brand)}
.tl-i b{font-size:17px;font-weight:700}
.tl-i b em{font-style:normal;color:var(--brand-deep);font-family:var(--serif);margin-right:8px}
.tl-i p{font-size:13.5px;color:var(--ink-2);margin-top:8px;line-height:1.75}

/* membership */
.mem{background:linear-gradient(150deg,#FFFCF8 0%,#F6E9D8 52%,var(--sand) 100%);
  border-radius:var(--r-lg);padding:64px 60px;display:grid;grid-template-columns:1fr .95fr;
  gap:56px;align-items:center;box-shadow:var(--shadow-l)}
.mem h2{font-size:38px}
.mem-list{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-top:30px}
.mem-i{background:rgba(255,255,255,.8);border-radius:18px;padding:18px 20px;display:flex;
  gap:12px;align-items:flex-start;backdrop-filter:blur(4px)}
.mem-i b{font-size:14.5px;display:block}
.mem-i span{font-size:12.5px;color:var(--muted);display:block;margin-top:4px;line-height:1.6}
.price-card{background:#fff;border-radius:var(--r-md);padding:34px 32px;box-shadow:var(--shadow-l)}
.price-row{display:flex;align-items:baseline;justify-content:space-between;padding:15px 0;
  border-bottom:1px solid rgba(0,0,0,.05)}
.price-row span{font-size:13.5px;color:var(--ink-2)}
.price-row b{font-family:var(--serif);font-size:22px}
.price-row b.o{color:var(--muted);text-decoration:line-through;font-size:18px}
.price-row b.m{color:var(--brand-deep)}
.price-row .save{font-size:12px;color:var(--brand-deep);background:rgba(212,116,60,.1);
  padding:4px 10px;border-radius:999px;font-weight:600}
.price-total{display:flex;align-items:baseline;justify-content:space-between;margin-top:20px}
.price-total span{font-size:14px;font-weight:600}
.price-total b{font-family:var(--serif);font-size:32px;color:var(--brand-deep)}

/* lock band */
.lock{display:grid;grid-template-columns:1.05fr .95fr;gap:60px;align-items:center;
  background:#1A1614;border-radius:var(--r-lg);padding:60px 58px;overflow:hidden;position:relative}
.lock::after{content:"";position:absolute;width:420px;height:420px;border-radius:50%;right:-140px;
  top:-160px;background:radial-gradient(circle,rgba(212,116,60,.32),transparent 68%)}
.lock .stag{color:#E7A87C}
.lock .stag::before{background:#E7A87C}
.lock h2{color:#fff}
.lock h2 em{color:#E7A87C}
.lock p{color:rgba(255,255,255,.62);margin-top:18px;font-size:15.5px;line-height:1.85;max-width:470px}
.lock-steps{margin-top:30px;display:flex;flex-direction:column;gap:14px;position:relative}
.lock-steps li{list-style:none;display:flex;align-items:center;gap:13px;color:rgba(255,255,255,.85);
  font-size:14.5px}
.lock-steps em{font-style:normal;width:26px;height:26px;border-radius:50%;background:rgba(231,168,124,.16);
  color:#E7A87C;font-size:12px;font-weight:700;display:grid;place-items:center;flex:none}
.qr{background:#fff;border-radius:26px;padding:22px;display:flex;flex-direction:column;
  align-items:center;gap:14px;position:relative;box-shadow:0 30px 60px -20px rgba(0,0,0,.5)}
.qr-box{width:186px;height:186px;border-radius:14px;background:#fff;overflow:hidden;
  box-shadow:0 2px 10px rgba(0,0,0,.12)}
.qr b{font-size:15px}
.qr span{font-size:12.5px;color:var(--muted)}

/* cta */
.cta{text-align:center;background:linear-gradient(180deg,#F3EDE2 0%,var(--sand) 100%);
  padding:64px 32px;margin:0 calc(50% - 50vw)}
.cta h2{font-size:40px}
.cta p{font-size:16px;color:var(--ink-2);margin-top:16px}
.cta-btns{display:flex;gap:14px;justify-content:center;margin-top:34px}

/* footer */
.ft{background:#1A1614;color:rgba(255,255,255,.6);padding:62px 0 34px}
.ft-top{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px;padding-bottom:44px;
  border-bottom:1px solid rgba(255,255,255,.1)}
.ft .logo b{color:#E7A87C}
.ft .logo span{color:rgba(255,255,255,.4)}
.ft-desc{font-size:13px;margin-top:18px;line-height:1.85;max-width:270px}
.ft h5{color:#fff;font-size:14px;margin-bottom:16px;font-weight:600}
.ft li{list-style:none;font-size:13px;margin-bottom:11px;cursor:pointer;transition:color .2s}
.ft li:hover{color:#E7A87C}
.ft-bot{display:flex;justify-content:space-between;padding-top:26px;font-size:12px;color:rgba(255,255,255,.35)}

/* ============================================================
   MOBILE / MOBILE-FIRST 精细化（写于 2026-10-14）
   断点: 1080 / 880 / 768 / 680 / 540 / 414 / 375
   设计原则:
   - 触摸目标 ≥ 44px
   - 字号阶梯缩放（不超 25 像素）
   - 所有 grid 在移动端单列
   - nav 720px 切换汉堡菜单
   ============================================================ */
.nav-tgl{display:none;background:transparent;border:0;cursor:pointer;
  width:44px;height:44px;border-radius:12px;align-items:center;justify-content:center;
  -webkit-tap-highlight-color:transparent;transition:background .2s}
.nav-tgl:hover,.nav-tgl:active{background:rgba(196,106,58,.1)}
.nav-tgl svg{width:22px;height:22px;color:var(--ink)}
body.nav-open{overflow:hidden}
/* 默认桌面隐藏 mobile-only 元素（mobile-nav.js 在 ≤720px 才会注入，这里双保险） */
.nav-mobile-cta{display:none}

/* 720px 以下：汉堡显示，链接变成全屏抽屉 */
@media(max-width:720px){
  .nav-in{height:64px;gap:8px;padding:0 18px;width:100%;box-sizing:border-box}
  .nav-tgl{display:inline-flex;margin-left:auto}
  .nav-in>.nav-cta{display:none}
  .nav-links{
    display:flex !important;
    position:fixed;inset:64px 0 auto 0;top:64px;
    background:var(--cream);
    flex-direction:column;align-items:stretch;
    padding:14px 18px 28px;gap:2px;
    border-bottom:1px solid var(--line);
    box-shadow:0 16px 28px -10px rgba(0,0,0,.12);
    transform:translateY(-12px);opacity:0;pointer-events:none;
    transition:transform .25s,opacity .2s;max-height:calc(100vh - 64px);overflow-y:auto;
  }
  body.nav-open .nav-links{transform:translateY(0);opacity:1;pointer-events:auto}
  .nav-links a{
    display:flex;align-items:center;justify-content:space-between;
    padding:16px 14px;font-size:16px;color:var(--ink);font-weight:500;
    border-radius:10px;min-height:48px;
  }
  .nav-links a::after{
    content:"›";width:auto;height:auto;background:none;color:var(--muted);
    font-size:20px;line-height:1;position:static;left:auto;bottom:auto;
    transform:none;font-family:var(--sans);
  }
  .nav-links a:hover{background:rgba(196,106,58,.08);color:var(--brand-deep)}
  .nav-links a:hover::after{width:auto}
  .nav-links a.on{background:rgba(196,106,58,.1);color:var(--brand-deep)}
  /* 抽屉内 CTA 按钮不要 ::after 箭头（它本身就是按钮） */
  .nav-mobile-cta a::after{display:none !important}
  /* CTA 搬到抽屉底部 */
  .nav-in>.nav-cta{display:none}
  .nav-mobile-cta{
    display:flex;flex-direction:column;gap:10px;padding:18px 4px 0;
    margin-top:14px;border-top:1px solid var(--line);
  }
  .nav-mobile-cta .btn{width:100%;justify-content:center;height:48px;font-size:15px}
}

/* 540px 以下：进一步收紧字号 + 内边距 */
@media(max-width:540px){
  .wrap{padding:0 18px}
  .nav-in{height:60px;padding:0 14px}
  .nav-tgl{width:42px;height:42px}
  .logo b{font-size:21px}
  .logo span{font-size:8px;letter-spacing:1.2px}
  /* hero: 双列改单列 + phone 居中 */
  .hero{padding:54px 0 64px}
  .hero-in{grid-template-columns:1fr;gap:34px;text-align:left}
  .phone-wrap{margin:0 auto}
  .hero::before{width:520px;height:520px;right:-180px;top:-220px}
  .hero::after{width:380px;height:380px;left:-160px;bottom:-200px}
  .pill{font-size:12px;height:30px;padding:0 14px}
  h1{font-size:34px;letter-spacing:-.2px;margin-top:18px}
  h1 br{display:none}
  .lead{font-size:15px;line-height:1.7;margin-top:18px}
  .slogan{font-size:12.5px;letter-spacing:1px;gap:8px;margin-top:14px}
  .slogan span{width:18px}
  .hero-cta{flex-direction:column;gap:10px;margin-top:24px}
  .hero-cta .btn{width:100%;justify-content:center;height:48px;font-size:15px}
  .stats{gap:20px;margin-top:36px;padding-top:22px;flex-wrap:wrap}
  .stat{flex:1 1 40%}
  .stat b{font-size:24px}
  .stat span{font-size:11.5px}
  /* phone mockup 缩到合适尺寸 */
  .phone-wrap{margin-top:8px}
  .phone{width:248px;border-radius:36px;padding:8px}
  .screen{height:480px;border-radius:28px}
  .notch{width:70px;height:18px;border-radius:10px;top:7px}
  .p-top{padding:28px 16px 0}
  .p-logo b{font-size:17px}
  .p-logo span{font-size:6.5px}
  .p-set{width:24px;height:24px}
  .p-hello{padding:14px 16px 0}
  .p-hello h3{font-size:16px}
  .p-hello p{font-size:10.5px;margin-top:6px}
  .p-grid{padding:14px 16px 0;gap:8px}
  .p-card{padding:11px 8px 10px;border-radius:14px}
  .p-ic{width:32px;height:32px;border-radius:11px;margin-bottom:7px}
  .p-card b{font-size:11px}
  .p-card span{font-size:8.5px;margin-top:2px}
  .p-sep{margin:14px 16px 0}
  .p-quick{padding:14px 16px;gap:8px}
  .p-q{font-size:9.5px;gap:5px}
  .p-qi{width:30px;height:30px;border-radius:10px}
  .p-tab{height:54px;padding-bottom:6px}
  .p-tag{padding:7px 11px;font-size:10px}
  /* section */
  .sec{padding:54px 0}
  .sec:has(.cta){padding-bottom:0}
  .stag{font-size:11.5px;letter-spacing:1.6px;gap:6px}
  .stag::before{width:16px}
  h2{font-size:28px;line-height:1.32;margin-top:12px;letter-spacing:-.2px}
  .sub{font-size:14px;margin-top:12px;line-height:1.75}
  .shead{flex-direction:column;align-items:flex-start;gap:14px;margin-bottom:32px}
  /* feature */
  .f-grid{grid-template-columns:1fr;gap:14px}
  .f-card{padding:24px 20px 20px;border-radius:20px}
  .f-ic{width:48px;height:48px;border-radius:15px;margin-bottom:16px}
  .f-card h3{font-size:17px}
  .f-card p{font-size:13px;margin-top:11px;line-height:1.7}
  .f-link{margin-top:16px;font-size:12.5px}
  /* dual */
  .d-grid{grid-template-columns:1fr;gap:14px}
  .d-card{padding:28px 22px 24px;border-radius:24px}
  .d-badge{right:18px;top:22px;font-size:10px;padding:5px 11px}
  .d-ic{width:50px;height:50px;border-radius:16px;margin-bottom:18px}
  .d-card h3{font-size:21px}
  .d-card>p{font-size:14px;margin-top:13px;line-height:1.75}
  .d-list{margin-top:20px;gap:10px}
  .d-list li{font-size:13px;gap:8px}
  /* flow */
  .flow{grid-template-columns:1fr;gap:14px}
  .fl{padding:22px 20px 18px;border-radius:20px}
  .fl-n{font-size:34px;margin-bottom:10px}
  .fl h4{font-size:15.5px}
  .fl p{font-size:13px;margin-top:8px;line-height:1.7}
  /* story */
  .story{grid-template-columns:1fr;gap:34px}
  .story-card{padding:30px 26px 26px;border-radius:24px}
  .story-ic{width:54px;height:54px;border-radius:18px;margin-bottom:18px}
  .story-card h3{font-size:22px}
  .story-card p{font-size:14px;margin-top:14px;line-height:1.8}
  .tl{padding-left:26px}
  .tl-i::before{left:-25px;width:14px;height:14px;border-width:3px}
  .tl-i b{font-size:15.5px}
  .tl-i b em{margin-right:6px}
  .tl-i p{font-size:13px;margin-top:6px;line-height:1.7}
  .tl-i{padding-bottom:24px}
  /* membership */
  .mem{grid-template-columns:1fr;gap:28px;padding:36px 22px;border-radius:24px}
  .mem h2{font-size:26px;line-height:1.32}
  .mem-list{grid-template-columns:1fr;gap:10px;margin-top:18px}
  .mem-i{padding:14px 16px;border-radius:14px;gap:10px}
  .mem-i b{font-size:14px}
  .mem-i span{font-size:12px;margin-top:3px;line-height:1.55}
  .price-card{padding:22px 20px;border-radius:20px}
  .price-row{padding:11px 0}
  .price-row span{font-size:13px}
  .price-row b{font-size:18px}
  .price-row b.o{font-size:16px}
  .price-total{margin-top:14px}
  .price-total b{font-size:26px}
  /* lock band */
  .lock{grid-template-columns:1fr;gap:34px;padding:40px 24px 36px;border-radius:24px}
  .lock::after{width:300px;height:300px;right:-100px;top:-120px}
  .lock h2{font-size:26px}
  .lock p{font-size:14px;margin-top:14px;line-height:1.8}
  .lock-steps{margin-top:22px;gap:11px}
  .lock-steps li{font-size:13.5px;gap:10px}
  .lock-steps em{width:24px;height:24px;font-size:11px}
  .qr{padding:18px;border-radius:20px;gap:10px;max-width:280px;margin:0 auto}
  .qr-box{width:160px;height:160px;border-radius:12px}
  .qr b{font-size:14px}
  /* cta */
  .cta{padding:46px 22px;border-radius:0}
  .cta h2{font-size:26px}
  .cta p{font-size:14px;margin-top:12px}
  .cta-btns{flex-direction:column;gap:10px;margin-top:22px}
  .cta-btns .btn{width:100%;justify-content:center;height:48px;font-size:15px}
  /* footer */
  .ft{padding:40px 0 24px}
  .ft-top{grid-template-columns:1fr;gap:24px;padding-bottom:26px}
  .ft-desc{font-size:12.5px;margin-top:12px;max-width:none}
  .ft h5{font-size:13px;margin-bottom:11px}
  .ft li{font-size:12.5px;margin-bottom:9px}
  .ft-bot{flex-direction:column;align-items:flex-start;gap:8px;font-size:11.5px;padding-top:18px}
  /* brand */
  .lbl{height:96px;border-radius:13px;gap:5px}
  .lbl-t{font-size:14px;letter-spacing:2.5px}
  .lbl-s{font-size:8.5px;letter-spacing:2px}
  .lbl-l{width:22px;height:1.5px}
  /* liquors page */
  .lq-grid,.dz-grid,.mb-grid{grid-template-columns:1fr}
  /* customs / ai page step */
  .steps-h{gap:0}
  .pp-row{gap:8px}
  .pp{padding:7px 14px;font-size:12px}
  /* ci / tp */
  .ci-grid,.tp-grid{grid-template-columns:1fr}
  .nums{grid-template-columns:repeat(2,1fr);gap:14px}
  /* phone product cards */
  .pr-card{padding:18px 16px;border-radius:18px}
  .pr-row{flex-direction:column;align-items:flex-start;gap:6px}
  .pr-price b{font-size:22px}
  /* 测试相关纵向居中 */
  .two,.two-r{grid-template-columns:1fr;gap:24px}
  /* 表格 */
  table{display:block;overflow-x:auto;white-space:nowrap}
}

/* 414px 以下（iPhone SE/小屏 Android） */
@media(max-width:414px){
  .wrap{padding:0 14px}
  h1{font-size:30px}
  h2{font-size:24px}
  .hero{padding:46px 0 54px}
  .phone{width:220px}
  .screen{height:432px}
  .p-tab div{font-size:9px}
  .nav-mobile-cta .btn{height:46px;font-size:14px}
}

/* 375px 以下（iPhone SE 1st / iPhone 12 mini） */
@media(max-width:375px){
  .wrap{padding:0 12px}
  h1{font-size:28px}
  .phone{width:200px;border-radius:32px;padding:7px}
  .screen{height:396px;border-radius:26px}
  .f-card{padding:20px 16px 18px}
}

/* 横屏手机小屏高度 */
@media(max-height:520px) and (orientation:landscape){
  .nav-links{max-height:calc(100vh - 60px);padding:10px 18px 18px}
  .nav-links a{padding:10px 14px;min-height:42px;font-size:15px}
  .nav-mobile-cta{padding:12px 18px 0;margin-top:8px}
}