/* ============================================================
   兜爸心选 · 官方应用官网
   视觉方向：品牌手账 —— 纸感底、印章红、宋体标题、手写批注
   ============================================================ */

:root{
  --paper:#FBF5EC;
  --paper-2:#F4E9D8;
  --card:#FFFCF7;
  --ink:#231C18;
  --ink-2:#4B3F37;
  --muted:#7E7064;
  --red:#CF152C;
  --red-deep:#A60F21;
  --red-soft:rgba(207,21,44,.08);
  --line:#E6D7C3;
  --cream:#FFF7EC;

  --serif:"Songti SC","STSong","Noto Serif CJK SC","Noto Serif SC","Source Han Serif SC","SimSun",serif;
  --sans:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans CJK SC","Noto Sans SC",sans-serif;
  --hand:"Kaiti SC","STKaiti","KaiTi","Kaiti TC","Yuanti SC",cursive;

  --wrap:1240px;
  --ease:cubic-bezier(.16,1,.3,1);
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:var(--sans);
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
ul,ol,dl,dd{margin:0;padding:0;list-style:none}
p{margin:0}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.2}
svg{display:block}
::selection{background:rgba(207,21,44,.16)}

/* 纸纹 */
body::after{
  content:"";position:fixed;inset:0;z-index:9;pointer-events:none;opacity:.045;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='180' height='180'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='180' height='180' filter='url(%23n)'/%3E%3C/svg%3E");
  mix-blend-mode:multiply;
}

.wrap{width:min(var(--wrap),calc(100% - 56px));margin-inline:auto}
section[id]{scroll-margin-top:96px}
.skip{position:absolute;left:-9999px;top:0;background:var(--ink);color:#fff;padding:10px 16px;z-index:99}
.skip:focus{left:12px;top:12px}

/* ---------- 通用文字 ---------- */
.kicker{
  font-size:11px;letter-spacing:.22em;text-transform:uppercase;
  color:var(--red);font-weight:600;margin-bottom:22px;
}
.kicker--light{color:rgba(255,247,236,.7)}
.h2{
  font-family:var(--serif);
  font-size:clamp(34px,4.2vw,56px);
  line-height:1.22;letter-spacing:.01em;font-weight:700;
}
.sec-sub{margin-top:18px;color:var(--muted);font-size:16px}

/* ---------- 按钮 ---------- */
.btn{
  --btn-bg:var(--ink);--btn-fg:#fff;
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  background:var(--btn-bg);color:var(--btn-fg);
  border:1px solid transparent;border-radius:999px;
  font-size:15px;font-weight:600;line-height:1;
  padding:14px 24px;cursor:pointer;white-space:nowrap;
  transition:transform .35s var(--ease),box-shadow .35s var(--ease),background .25s,color .25s,border-color .25s;
}
.btn .ico{width:18px;height:18px;flex:none}
.btn--red{--btn-bg:var(--red);--btn-fg:#fff;box-shadow:0 12px 26px -14px rgba(207,21,44,.9)}
.btn--red:hover{--btn-bg:var(--red-deep);transform:translateY(-2px);box-shadow:0 18px 30px -14px rgba(207,21,44,.85)}
.btn--ghost{background:transparent;color:var(--ink);border-color:rgba(35,28,24,.22)}
.btn--ghost:hover{border-color:var(--ink);transform:translateY(-2px)}
.btn--cream{background:var(--cream);color:var(--red);box-shadow:0 16px 32px -20px rgba(0,0,0,.6)}
.btn--cream:hover{transform:translateY(-2px);background:#fff}
.btn--outline{background:transparent;color:rgba(255,247,236,.92);border-color:rgba(255,247,236,.38)}
.btn--outline.is-disabled{cursor:default;opacity:.8}
.btn--sm{padding:11px 20px;font-size:13.5px}
.btn--lg{padding:18px 30px;font-size:16px}
.btn-note{font-size:12px;font-weight:400;opacity:.62;letter-spacing:.02em}

/* ---------- 导航 ---------- */
.nav{
  position:fixed;inset:0 0 auto;z-index:50;
  padding:14px 0;transition:padding .35s var(--ease),background .35s,border-color .35s,box-shadow .35s;
  border-bottom:1px solid transparent;
}
.nav-inner{
  width:min(var(--wrap),calc(100% - 56px));margin-inline:auto;
  display:flex;align-items:center;gap:40px;
}
.nav.is-stuck{
  padding:8px 0;background:rgba(251,245,236,.86);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border-bottom-color:rgba(230,215,195,.9);
}
/* logo：白色圆角卡片 + 柔和阴影 + 缓动（hover 上浮 / 按下回弹 / 首屏淡入） */
.brand{
  flex:none;display:flex;align-items:center;
  padding:8px 12px;border:0;border-radius:16px;background:#fff;
  box-shadow:0 1px 2px rgba(35,28,24,.05),0 10px 24px -14px rgba(35,28,24,.34);
  transition:padding .45s var(--ease),border-radius .45s var(--ease),
             box-shadow .45s var(--ease),transform .45s var(--ease);
  animation:brandIn .9s var(--ease) both;
}
.brand img{height:56px;width:auto;transition:height .45s var(--ease)}
.nav.is-stuck .brand{padding:6px 10px;border-radius:13px}
.nav.is-stuck .brand img{height:44px}
.brand:hover{
  transform:translateY(-3px);
  box-shadow:0 2px 4px rgba(35,28,24,.06),0 18px 34px -16px rgba(35,28,24,.45);
}
.brand:active{transform:translateY(-1px) scale(.985);transition-duration:.18s}
.brand:focus-visible{outline:2px solid var(--red);outline-offset:3px}
@keyframes brandIn{from{opacity:0;transform:translateY(-10px) scale(.94)}to{opacity:1;transform:none}}
@media (prefers-reduced-motion:reduce){
  .brand{animation:none;transition:none}
}
.nav-links{display:flex;gap:34px;margin-left:auto;font-size:14.5px;color:var(--ink-2)}
.nav-links a{position:relative;padding:4px 0;transition:color .25s}
.nav-links a::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:1px;
  background:var(--red);transform:scaleX(0);transform-origin:left;transition:transform .4s var(--ease);
}
.nav-links a:hover{color:var(--red)}
.nav-links a:hover::after{transform:scaleX(1)}

/* ---------- HERO ---------- */
.hero{position:relative;padding:168px 0 78px;overflow:hidden}
.hero-bg{position:absolute;inset:0;pointer-events:none}
.hero-bg .blob{
  position:absolute;right:-8%;top:-16%;width:760px;height:760px;border-radius:50%;
  background:radial-gradient(circle at 50% 50%,rgba(207,21,44,.16),rgba(207,21,44,.05) 42%,transparent 68%);
  filter:blur(6px);
}
.hero-bg .grid{
  position:absolute;inset:0;
  background-image:radial-gradient(rgba(35,28,24,.16) 1px,transparent 1px);
  background-size:24px 24px;
  -webkit-mask-image:radial-gradient(120% 80% at 78% 8%,#000 0%,transparent 62%);
  mask-image:radial-gradient(120% 80% at 78% 8%,#000 0%,transparent 62%);
  opacity:.7;
}
.hero-inner{position:relative;display:grid;grid-template-columns:1.02fr .98fr;align-items:center;gap:40px}

.eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  font-size:12.5px;letter-spacing:.16em;color:var(--ink-2);
  border:1px solid var(--line);border-radius:999px;padding:8px 18px;background:rgba(255,252,247,.6);
}
.eyebrow-dot{width:6px;height:6px;border-radius:50%;background:var(--red);box-shadow:0 0 0 4px rgba(207,21,44,.12)}

.hero-title{
  font-family:var(--serif);
  font-size:clamp(64px,8.6vw,124px);
  line-height:1.02;letter-spacing:.02em;
  margin:26px 0 8px;font-weight:700;
}
.hero-lede{
  font-family:var(--serif);
  font-size:clamp(28px,3.2vw,42px);
  line-height:1.5;color:var(--ink);margin-top:6px;font-weight:700;
}
.hero-lede .hl{position:relative;display:inline-block;color:var(--red)}
.hero-lede .hl::after{
  content:"";position:absolute;left:-2%;right:-2%;bottom:2px;height:12px;
  background:linear-gradient(90deg,rgba(207,21,44,.26),rgba(207,21,44,.14));
  border-radius:60% 40% 55% 45% / 100% 100% 0 0;
  transform:rotate(-.6deg);z-index:-1;
}
.hero-desc{margin-top:24px;font-size:16.5px;line-height:1.95;color:var(--muted);max-width:32em;text-wrap:balance}
.about-sub,.about-sub,.feature p,.promise p,.dl-desc,.sec-sub{text-wrap:pretty}
.cta-row{display:flex;flex-wrap:wrap;gap:14px;margin-top:36px}
.hero-meta{
  display:flex;flex-wrap:wrap;gap:0 18px;margin-top:30px;
  font-size:12.5px;letter-spacing:.04em;color:var(--muted);
}
.hero-meta li{position:relative;padding-right:18px}
.hero-meta li:not(:last-child)::after{
  content:"";position:absolute;right:7px;top:50%;width:3px;height:3px;border-radius:50%;background:var(--line);
}

/* 手机模型 */
.hero-art{position:relative;display:flex;justify-content:center;align-items:center;min-height:640px}
.phone{
  position:relative;width:328px;padding:var(--bezel,8px);border-radius:48px;
  background:linear-gradient(160deg,#3A302A,#17120F 46%,#241D19);
  box-shadow:
    0 2px 0 rgba(255,255,255,.14) inset,
    0 50px 90px -50px rgba(35,28,24,.75),
    0 20px 40px -30px rgba(35,28,24,.5);
  flex:none;
}
.phone::after{
  content:"";position:absolute;inset:0;border-radius:48px;pointer-events:none;
  background:linear-gradient(120deg,rgba(255,255,255,.16),transparent 32%,transparent 70%,rgba(255,255,255,.05));
  -webkit-mask:linear-gradient(#000,#000) content-box,linear-gradient(#000,#000);
  -webkit-mask-composite:xor;mask-composite:exclude;padding:1px;
}
.phone-screen{
  position:relative;border-radius:39px;overflow:hidden;background:#FCFAF6;
  height:632px;display:flex;flex-direction:column;
}
.phone-screen > *{flex:none}
.phone--hero{transform:rotate(-3.4deg)}
.phone--hero .phone-screen{height:680px}

/* 首屏手机屏：6 张界面截图自动轮换（mama-box 3 张 + 商城 3 张） */
.hero-slides{position:relative;overflow:hidden;background:#fff}
.hs-slide{
  position:absolute;inset:0;display:block;width:100%;height:100%;
  object-fit:cover;object-position:top center;
  opacity:0;transition:opacity .9s var(--ease);will-change:opacity;
}
.hs-slide.is-on{opacity:1;animation:hsKen 8.4s linear both}
@keyframes hsKen{from{transform:scale(1)}to{transform:scale(1.055)}}
@media (prefers-reduced-motion:reduce){
  .hs-slide{transition:none}
  .hs-slide.is-on{animation:none}
}

.statusbar{display:flex;justify-content:space-between;align-items:center;padding:8px 18px 2px;font-size:10px;font-weight:700;color:#2B231E;letter-spacing:.02em}
.sb-right{display:flex;align-items:center;gap:4px}
.sb-right i{display:block;background:#2B231E;border-radius:1px}
.sb-right .sig{width:12px;height:8px;clip-path:polygon(0 100%,100% 0,100% 100%)}
.sb-right .wifi{width:10px;height:8px;clip-path:polygon(50% 100%,0 25%,100% 25%)}
.sb-right .batt{width:16px;height:8px;border-radius:2px;opacity:.9}

.app-top{display:flex;align-items:center;gap:8px;padding:4px 14px 8px}
.mini-logo{height:26px;width:auto;flex:none}
.search{
  flex:1;display:flex;align-items:center;gap:5px;
  height:30px;padding:0 10px;border-radius:999px;
  background:#F2E9DC;color:#9A8B7C;font-size:10px;
}
.search svg{width:12px;height:12px;fill:none;stroke:#9A8B7C;stroke-width:2;stroke-linecap:round;flex:none}

.promo{
  position:relative;margin:0 14px;border-radius:15px;padding:10px 14px 11px;
  background:
    radial-gradient(120% 120% at 90% 0%,rgba(255,255,255,.18),transparent 55%),
    linear-gradient(150deg,#D9192F,#A60F21);
  color:#FFEEE6;overflow:hidden;
  box-shadow:0 12px 22px -16px rgba(166,15,33,.9);
}
.promo-k{font-size:9.5px;letter-spacing:.16em;opacity:.82}
.promo-t{font-family:var(--serif);font-size:16px;font-weight:700;line-height:1.38;margin-top:4px}
.promo-tag{display:inline-block;margin-top:8px;padding:2px 8px;border-radius:999px;background:rgba(255,255,255,.16);font-size:8.5px;letter-spacing:.04em}
.promo-doodle{position:absolute;right:8px;top:10px;width:44px;height:44px;color:#fff;opacity:.32}

.chips{display:flex;gap:6px;padding:10px 14px 2px;overflow:hidden}
.chip{flex:none;font-size:9.5px;padding:5px 10px;border-radius:999px;background:#F2E9DC;color:#6E6156}
.chip--on{background:var(--red);color:#fff}

.sect-head{display:flex;justify-content:space-between;align-items:baseline;padding:7px 15px 4px;font-size:11px;color:#2B231E}
.sect-head b{font-size:12px;letter-spacing:.02em}
.sect-head span{font-size:9px;color:#A6988A}

.pgrid{display:grid;grid-template-columns:1fr 1fr;gap:6px;padding:0 14px}
.pcard{background:#fff;border-radius:11px;padding:5px;box-shadow:0 6px 14px -12px rgba(35,28,24,.5)}
.pimg{height:118px;border-radius:8px;overflow:hidden;background:#F6F0E7}
.pimg img{width:100%;height:100%;object-fit:cover}
.pname{
  margin:5px 3px 2px;font-size:9px;line-height:1.4;color:#4B3F37;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;height:2.9em;
}
.pprice{margin:0 3px 3px;font-size:10px;color:var(--red);display:flex;align-items:baseline;gap:4px}
.pprice em{font-style:normal;font-weight:700;font-size:11px}
.pprice s{color:#A6988A;font-size:9px}

.tabbar{
  margin-top:auto;display:flex;border-top:1px solid #F0E6D9;background:#FFFDFA;
  padding:6px 4px 9px;
}
.tab{flex:1;display:flex;flex-direction:column;align-items:center;gap:3px;font-size:8.5px;color:#A6988A}
.tab svg{width:17px;height:17px;fill:none;stroke:currentColor;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}
.tab--on{color:var(--red)}

/* 印章 */
.stamp{
  position:absolute;left:-6px;top:12px;z-index:3;
  width:126px;height:126px;border-radius:50%;
  border:2px solid rgba(207,21,44,.72);
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:6px;
  color:rgba(207,21,44,.86);transform:rotate(-11deg);
  background:rgba(255,252,247,.36);
  mix-blend-mode:multiply;
  box-shadow:0 0 0 6px rgba(207,21,44,.06) inset;
}
.stamp-top{font-family:var(--serif);font-size:20px;font-weight:700;letter-spacing:.14em;text-indent:.14em}
.stamp-line{width:52px;height:1px;background:rgba(207,21,44,.5)}
.stamp-bottom{font-family:var(--hand);font-size:10.5px;letter-spacing:.14em;text-indent:.14em}

.hand-note{
  position:absolute;left:-4px;bottom:44px;
  font-family:var(--hand);font-size:19px;line-height:1.6;color:var(--red);
  transform:rotate(-4deg);
}
.hand-arrow{
  position:absolute;left:118px;bottom:16px;width:96px;color:rgba(207,21,44,.5);
  transform:rotate(-22deg);
}

/* ---------- 三条承诺 ---------- */
.promises{border-top:1px solid var(--line);border-bottom:1px solid var(--line);background:rgba(255,252,247,.5)}
.promises-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:48px;padding:46px 0}
.promise{position:relative;padding-left:0}
.p-num{font-family:var(--serif);font-size:12px;letter-spacing:.2em;color:var(--red)}
.promise h3{font-family:var(--serif);font-size:23px;margin:8px 0 6px;letter-spacing:.04em}
.promise p{font-size:14.5px;line-height:1.8;color:var(--muted)}

/* ---------- 品牌理念 ---------- */
.about{padding:118px 0 110px}
.about-inner{display:grid;grid-template-columns:.86fr 1.14fr;gap:80px;align-items:start}
.about-head{position:sticky;top:120px}
.about-sub{margin-top:26px;font-size:16px;line-height:1.95;color:var(--muted)}

.note{
  position:relative;background:var(--card);
  border:1px solid var(--line);border-radius:4px;
  padding:56px 54px 44px;
  box-shadow:0 40px 70px -50px rgba(35,28,24,.55),0 2px 0 rgba(255,255,255,.8) inset;
  transform:rotate(-.55deg);
}
.note::before{
  content:"";position:absolute;inset:0;border-radius:4px;pointer-events:none;
  background-image:repeating-linear-gradient(to bottom,transparent 0 33px,rgba(35,28,24,.045) 33px 34px);
  opacity:.9;
}
.tape{
  position:absolute;width:112px;height:30px;background:rgba(226,196,148,.55);
  box-shadow:0 2px 6px rgba(35,28,24,.08);backdrop-filter:blur(1px);
}
.tape--l{left:-22px;top:26px;transform:rotate(-38deg)}
.tape--r{right:-18px;bottom:40px;transform:rotate(-32deg)}
.note-label{
  position:relative;font-size:10.5px;letter-spacing:.24em;color:var(--muted);
  margin-bottom:26px;text-transform:uppercase;
}
.note-body{position:relative}
.note-body p{font-size:17px;line-height:2.02;color:var(--ink-2);letter-spacing:.01em}
.note-body p + p{margin-top:18px}
.note-body p:first-child::first-letter{
  float:left;font-family:var(--serif);font-size:56px;line-height:.9;color:var(--red);
  margin:6px 12px 0 0;
}
.sign{position:relative;margin-top:26px;text-align:right;font-family:var(--hand);font-size:21px;color:var(--red);letter-spacing:.06em}
.checks{margin-top:34px;border-top:1px solid var(--line)}
.checks li{
  display:flex;align-items:baseline;gap:14px;padding:15px 0;
  border-bottom:1px dashed var(--line);font-size:14px;line-height:1.7;color:var(--muted);
}
.checks li span{flex:none;font-family:var(--serif);font-size:12px;letter-spacing:.18em;color:var(--red)}

.note-star{position:absolute;right:30px;bottom:24px;width:34px;color:rgba(207,21,44,.35)}

/* ---------- 应用功能 ---------- */
.features{padding:104px 0 110px;background:var(--paper-2);border-top:1px solid rgba(230,215,195,.7)}
.sec-head{max-width:720px}
.feature-grid{display:grid;grid-template-columns:1fr 1fr;gap:22px;margin-top:56px}
.feature{
  position:relative;background:var(--card);border:1px solid rgba(230,215,195,.9);
  border-radius:22px;padding:36px 38px 38px;
  transition:transform .5s var(--ease),box-shadow .5s var(--ease),border-color .5s;
}
.feature:hover{transform:translateY(-5px);border-color:rgba(207,21,44,.35);box-shadow:0 30px 50px -40px rgba(35,28,24,.55)}
.feature .f-num{
  position:absolute;right:36px;top:30px;
  font-family:var(--serif);font-size:13px;letter-spacing:.2em;color:rgba(35,28,24,.2);
}
.feature::after{
  content:"";position:absolute;left:38px;right:38px;top:0;height:2px;border-radius:2px;
  background:linear-gradient(90deg,var(--red),rgba(207,21,44,0));
  transform:scaleX(0);transform-origin:left;transition:transform .6s var(--ease);
}
.feature:hover::after{transform:scaleX(1)}
.f-ico{
  width:56px;height:56px;border-radius:50%;border:1px dashed rgba(207,21,44,.4);
  display:grid;place-items:center;color:var(--red);background:var(--red-soft);
}
.f-ico svg{width:28px;height:28px}
.feature h3{font-family:var(--serif);font-size:23px;margin:22px 0 10px;letter-spacing:.03em}
.feature p{font-size:15px;line-height:1.85;color:var(--muted)}

/* ---------- 应用截图 ---------- */
.screens{padding:104px 0 118px;background:var(--paper);border-top:1px solid var(--line)}
.sec-head--row{display:flex;justify-content:space-between;align-items:flex-end;max-width:none;gap:40px}
.sec-note{font-size:12.5px;line-height:1.9;color:var(--muted);text-align:right;letter-spacing:.02em}
.shots-hint{display:none;font-size:12px;letter-spacing:.06em;color:var(--muted);margin-top:10px}
.shots{display:grid;grid-template-columns:repeat(3,1fr);gap:38px;row-gap:78px;margin-top:64px;justify-items:center}
.shot{width:100%;display:flex;flex-direction:column;align-items:center}
.phone--shot{--bezel:6px;width:300px;padding:var(--bezel);border-radius:44px}
.phone--shot .phone-screen{height:680px;border-radius:36px}
/* 真机截图（mama-box 首页）：铺满屏幕区，顶部对齐 */
.phone--shot .phone-screen .shot-img{width:100%;height:100%;object-fit:cover;object-position:top center;display:block}
.phone--shot .statusbar{padding-top:8px}
.phone--shot .promo-t{font-size:16px}
.phone--shot .pgrid{gap:7px}
.shot:nth-child(1) .phone--shot{transform:rotate(-2.2deg)}
.shot:nth-child(2) .phone--shot{transform:translateY(-18px)}
.shot:nth-child(3) .phone--shot{transform:rotate(2.2deg)}
.shot:nth-child(4) .phone--shot{transform:rotate(-2.2deg)}
.shot:nth-child(5) .phone--shot{transform:translateY(-18px)}
.shot:nth-child(6) .phone--shot{transform:rotate(2.2deg)}
.shot .phone--shot{transition:transform .6s var(--ease),box-shadow .6s}
.shot:hover .phone--shot{transform:rotate(0) translateY(-6px)}
.shot figcaption{margin-top:26px;font-size:13.5px;line-height:1.7;color:var(--muted);text-align:center;max-width:300px}
.shot figcaption b{color:var(--ink);font-weight:600}

/* 分类页 / 详情页 mock */
.subpage-head{display:flex;align-items:center;justify-content:space-between;padding:6px 14px 12px;font-size:12px;color:#2B231E}
.subpage-head b{font-weight:600}
.subpage-head .back{width:18px;height:18px}
.subpage-head .share{color:#A6988A;letter-spacing:2px}
.cat{display:flex;flex:1;overflow:hidden;border-top:1px solid #F0E6D9}
.cat-rail{width:78px;background:#F6F0E7;padding-top:4px;overflow:hidden}
.cat-rail li{font-size:10px;color:#7E7064;text-align:center;padding:9px 0;position:relative}
.cat-rail li.on{background:#FCFAF6;color:var(--red);font-weight:600}
.cat-rail li.on::before{content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);width:3px;height:16px;background:var(--red);border-radius:0 3px 3px 0}
.cat-list{flex:1;padding:10px 10px 0;overflow:hidden}
.row{display:flex;gap:8px;margin-bottom:11px}
.rimg{width:58px;height:58px;border-radius:9px;overflow:hidden;flex:none;background:#F6F0E7}
.rimg img{width:100%;height:100%;object-fit:cover}
.rt{flex:1;min-width:0;display:flex;flex-direction:column;gap:2px}
.rt p{margin:0;font-size:9.5px;line-height:1.4;color:#4B3F37;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.rt .rtag{display:inline-block;font-size:8px;color:var(--red);border:1px solid rgba(207,21,44,.3);border-radius:3px;padding:0 4px;width:max-content}
.rt em{font-style:normal;font-size:11px;font-weight:700;color:var(--red);margin-top:auto}

.dimg{width:100%;aspect-ratio:1/1;background:#F6F0E7}
.dimg img{width:100%;height:100%;object-fit:cover}
.dbox{padding:12px 14px 0;flex:1;overflow:hidden}
.dprice{display:flex;align-items:baseline;gap:6px;color:var(--red)}
.dprice em{font-style:normal;font-family:var(--sans);font-size:19px;font-weight:700}
.dprice s{color:#A6988A;font-size:9px}
.dprice span{margin-left:auto;color:#A6988A;font-size:9px}
.dname{margin-top:6px;font-size:11px;line-height:1.5;color:#2B231E}
.dtags{display:flex;gap:5px;margin-top:8px}
.dtags span{font-size:8px;padding:2px 5px;border-radius:3px;background:rgba(207,21,44,.07);color:var(--red)}
.dline{display:flex;gap:12px;font-size:9px;padding:8px 0;border-top:1px dashed #EDE2D3;color:#A6988A}
.dline b{font-weight:500;color:#4B3F37}
.dnote{margin-top:6px;background:#FBF1E7;border-radius:8px;padding:8px 10px;font-size:9px;line-height:1.6;color:#6E6156}
.dnote-k{display:inline-block;font-size:8px;background:var(--red);color:#fff;border-radius:3px;padding:1px 5px;margin-right:4px}
.dbuy{margin-top:auto;display:flex;align-items:center;gap:10px;border-top:1px solid #F0E6D9;padding:8px 12px 12px;background:#FFFDFA}
.dico{display:flex;flex-direction:column;align-items:center;gap:1px;font-size:7.5px;color:#7E7064}
.dico svg{width:15px;height:15px;fill:none;stroke:currentColor;stroke-width:1.6}
.dbtn{margin-left:auto;background:var(--red);color:#fff;font-size:10.5px;font-weight:600;border-radius:999px;padding:9px 22px}

/* ---------- 下载 ---------- */
.download{padding:0 0 104px}
.dl-card{
  position:relative;overflow:hidden;color:var(--cream);
  border-radius:32px;padding:66px 64px;
  background:
    radial-gradient(90% 120% at 88% 8%,rgba(255,255,255,.16),transparent 55%),
    radial-gradient(120% 100% at 0% 100%,rgba(0,0,0,.22),transparent 60%),
    linear-gradient(140deg,#D2152C,#A30E20 70%);
  display:grid;grid-template-columns:1.16fr .84fr;gap:56px;align-items:center;
  box-shadow:0 50px 80px -60px rgba(166,15,33,.9);
}
.dl-card::before{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.55;
  background-image:radial-gradient(rgba(255,255,255,.14) 1px,transparent 1px);
  background-size:22px 22px;
  -webkit-mask-image:radial-gradient(80% 100% at 100% 0%,#000,transparent 70%);
  mask-image:radial-gradient(80% 100% at 100% 0%,#000,transparent 70%);
}
.dl-star{position:absolute;color:rgba(255,247,236,.35);font-size:22px}
.dl-star--1{left:46%;top:34px}
.dl-star--2{left:52%;bottom:48px;font-size:15px}
.dl-left{position:relative}
.dl-title{font-family:var(--serif);font-size:clamp(38px,4.4vw,62px);line-height:1.24;letter-spacing:.01em}
.dl-desc{margin-top:20px;font-size:15px;line-height:1.9;color:rgba(255,247,236,.8);max-width:34em}
.dl-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:32px;align-items:center}
.dl-meta{display:grid;grid-template-columns:1fr 1fr;gap:16px 24px;margin-top:38px;max-width:440px}
.dl-meta dt{font-size:10.5px;letter-spacing:.18em;color:rgba(255,247,236,.55);margin-bottom:3px}
.dl-meta dd{font-size:14.5px;color:var(--cream)}
.tbd{color:inherit;border-bottom:1px dashed currentColor;opacity:.55;cursor:help}
.dl-tip{display:flex;align-items:center;gap:8px;margin-top:22px;font-size:12.5px;line-height:1.7;color:rgba(255,247,236,.72)}
.dl-tip svg{width:15px;height:15px;flex:none;opacity:.8}
.dl-legal{margin-top:22px;font-size:12.5px;line-height:1.8;color:rgba(255,247,236,.76);max-width:34em}
.dl-legal a{color:rgba(255,247,236,.9);border-bottom:1px solid rgba(255,247,236,.35)}

.dl-right{position:relative;display:flex;flex-direction:column;align-items:center;gap:14px}
.qr-card{background:var(--card);color:var(--ink);border-radius:20px;padding:20px 20px 18px;text-align:center;box-shadow:0 30px 60px -40px rgba(0,0,0,.6);transform:rotate(1.6deg)}
.qr{width:176px;height:176px}
.qr-t{margin-top:12px;font-size:13px;color:var(--ink-2)}
.qr-url{margin-top:2px;font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:11.5px;letter-spacing:.02em;color:var(--muted)}
.qr-hint{font-size:11.5px;color:rgba(255,247,236,.55);text-align:center}

/* ---------- FAQ ---------- */
.faq{padding:20px 0 130px}
.faq-inner{display:grid;grid-template-columns:.82fr 1.18fr;gap:80px;align-items:start}
.faq-head{position:sticky;top:120px}
.faq-contact{margin-top:30px;font-size:14px;line-height:2;color:var(--muted)}
.faq-contact a{color:var(--red);border-bottom:1px solid rgba(207,21,44,.35);padding-bottom:1px}
.faq-list{border-top:1px solid var(--line)}
.qa{border-bottom:1px solid var(--line)}
.qa summary{
  list-style:none;cursor:pointer;display:flex;justify-content:space-between;align-items:center;gap:24px;
  padding:26px 2px;font-family:var(--serif);font-size:20px;letter-spacing:.02em;color:var(--ink);
  transition:color .3s;
}
.qa summary::-webkit-details-marker{display:none}
.qa summary:hover{color:var(--red)}
.qa summary i{position:relative;width:16px;height:16px;flex:none;transition:transform .4s var(--ease)}
.qa summary i::before,.qa summary i::after{content:"";position:absolute;background:currentColor;border-radius:2px}
.qa summary i::before{left:0;right:0;top:7px;height:1.5px}
.qa summary i::after{top:0;bottom:0;left:7px;width:1.5px;transition:opacity .3s}
.qa[open] summary i{transform:rotate(180deg)}
.qa[open] summary i::after{opacity:0}
.qa-body{padding:0 44px 28px 2px;color:var(--muted);font-size:15px;line-height:1.95}
.qa-body a{color:var(--red);border-bottom:1px solid rgba(207,21,44,.3)}

/* ---------- 页脚 ---------- */
.footer{background:var(--ink);color:#EADFD3;padding:74px 0 34px}
.footer-top{display:grid;grid-template-columns:1fr 1.25fr;gap:64px}
.foot-logo{font-family:var(--serif);font-size:32px;letter-spacing:.06em;color:var(--cream)}
.foot-slogan{margin-top:14px;font-size:14px;line-height:1.95;color:rgba(234,223,211,.6)}
.foot-cols{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}
.foot-cols h4{font-size:11px;letter-spacing:.2em;color:rgba(234,223,211,.45);margin-bottom:16px;font-weight:600}
.foot-cols a,.foot-plain{display:block;font-size:13.5px;color:rgba(234,223,211,.82);padding:5px 0;transition:color .25s}
.foot-cols a:hover{color:#fff}
.foot-legal{margin-top:54px;padding-top:22px;border-top:1px solid rgba(234,223,211,.14);font-size:12px;line-height:2;color:rgba(234,223,211,.45)}

/* ---------- 动效 ---------- */
.js [data-reveal]{opacity:0;transform:translateY(26px);transition:opacity .9s var(--ease),transform .9s var(--ease)}
.js [data-reveal].is-in{opacity:1;transform:none}
.hero-copy > *{opacity:0;transform:translateY(22px);animation:rise .95s var(--ease) forwards}
.hero-copy > *:nth-child(1){animation-delay:.05s}
.hero-copy > *:nth-child(2){animation-delay:.14s}
.hero-copy > *:nth-child(3){animation-delay:.23s}
.hero-copy > *:nth-child(4){animation-delay:.32s}
.hero-copy > *:nth-child(5){animation-delay:.41s}
.hero-copy > *:nth-child(6){animation-delay:.5s}
@keyframes rise{to{opacity:1;transform:none}}
.hero-art{opacity:0;animation:rise 1.1s .3s var(--ease) forwards}
.phone--hero{animation:float 7s ease-in-out infinite}
@keyframes float{
  0%,100%{transform:rotate(-3.4deg) translateY(0)}
  50%{transform:rotate(-3deg) translateY(-10px)}
}

/* ---------- 响应式 ---------- */
@media (max-width:1080px){
  .hero-inner{gap:20px}
  .hero-art{min-height:auto;transform:scale(.94)}
  .about-inner,.faq-inner{grid-template-columns:1fr;gap:52px}
  .about-head,.faq-head{position:static}
  .dl-card{padding:56px 46px;gap:40px}
  .dl-meta{grid-template-columns:1fr 1fr}
}
@media (max-width:900px){
  .wrap,.nav-inner{width:calc(100% - 40px)}
  .hero{padding:132px 0 72px}
  .hero-inner{grid-template-columns:1fr;gap:54px}
  .hero-art{order:2;justify-content:center;transform:none;min-height:0;margin-top:8px}
  .stamp{display:none}
  .hand-note{right:4%;bottom:0;font-size:17px}
  .hand-arrow{display:none}
  .stamp{left:0;top:-6px;width:104px;height:104px}
  .promises-grid{grid-template-columns:1fr;gap:26px;padding:38px 0}
  .promise{display:grid;grid-template-columns:44px 1fr;gap:0 16px;align-items:baseline}
  .promise h3{margin:0}
  .promise p{grid-column:2}
  .hero-meta{display:grid;grid-template-columns:1fr 1fr;gap:6px 12px}
  .feature{padding:28px 26px 30px;border-radius:18px}
  .f-ico{width:48px;height:48px}
  .f-ico svg{width:24px;height:24px}
  .feature h3{font-size:20px;margin:16px 0 8px}
  .feature .f-num{right:24px;top:24px}
  .about{padding:84px 0 78px}
  .note{padding:44px 34px 38px}
  .note-body p{font-size:16px}
  .features{padding:78px 0 84px}
  .feature-grid{grid-template-columns:1fr;gap:16px;margin-top:40px}
  .screens{padding:78px 0 92px}
  .sec-head--row{flex-direction:column;align-items:flex-start;gap:18px}
  .sec-note{text-align:left}
  .shots-hint{display:block}
  .shots{
    grid-template-columns:none;display:flex;overflow-x:auto;gap:22px;
    margin:44px -20px 0;padding:0 20px 18px;scroll-snap-type:x mandatory;
    -webkit-overflow-scrolling:touch;scrollbar-width:none;
  }
  .shots::-webkit-scrollbar{display:none}
  .shot{flex:none;width:300px;scroll-snap-align:center}
  .shot:nth-child(n) .phone--shot{transform:none}
  .download{padding-bottom:84px}
  .dl-card{grid-template-columns:1fr;padding:44px 30px;gap:36px;border-radius:26px}
  .dl-actions{flex-direction:column;align-items:stretch}
  .dl-actions .btn{width:100%}
  .dl-right{align-items:center;text-align:center}
  .dl-right .qr-hint{text-align:center}
  .qr-card{transform:none}
  .faq{padding-bottom:92px}
  .footer-top{grid-template-columns:1fr;gap:40px}
  .foot-cols{grid-template-columns:1fr 1fr;gap:24px 20px}
}
@media (max-width:760px){
  .nav-links{display:none}
  .brand{padding:6px 9px;border-radius:13px}
  .brand img{height:44px}
  .nav.is-stuck .brand{padding:5px 8px;border-radius:11px}
  .nav.is-stuck .brand img{height:36px}
}
@media (max-width:560px){
  .wrap,.nav-inner{width:calc(100% - 32px)}
  .hero{padding-top:118px}
  .hero-title{font-size:clamp(52px,15vw,78px)}
  .hero-lede{font-size:27px}
  .hero-desc{font-size:15px}
  .cta-row{flex-direction:column;align-items:stretch;gap:10px}
  .cta-row .btn{width:100%}
  .hero-meta{gap:6px 0;flex-direction:column;font-size:12px}
  .hero-meta li{padding-right:0}
  .hero-meta li:not(:last-child)::after{display:none}
  .hand-note{display:none}
  .stamp{width:92px;height:92px}
  .stamp-top{font-size:16px}
  .stamp-bottom{font-size:9px}
  .promises-grid{padding:32px 0}
  .about-sub{font-size:15px}
  .note{padding:38px 22px 30px}
  .note-body p{font-size:15.3px;line-height:1.95}
  .note-body p:first-child::first-letter{font-size:44px}
  .tape{display:none}
  .dl-card{padding:36px 22px}
  .dl-meta{grid-template-columns:1fr 1fr;gap:14px}
  .dl-meta dd{font-size:13px}
  .qa summary{font-size:17.5px;padding:22px 0;gap:16px}
  .qa-body{padding-right:8px;font-size:14.5px}
  .foot-cols{grid-template-columns:1fr}
  .foot-legal{margin-top:38px;font-size:11.5px}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition-duration:.001ms!important;scroll-behavior:auto!important}
  .js [data-reveal]{opacity:1;transform:none}
  .hero-copy > *,.hero-art{opacity:1;transform:none}
}

/* 页脚备案链接 */
.foot-icp{color:rgba(234,223,211,.82);border-bottom:1px solid rgba(234,223,211,.28)}
.foot-icp:hover{color:#fff}