/* =========================================================
   今日热料 · 品牌站点设计系统
   1 设计变量 / 2 基础重置 / 3 布局 / 4 文字 / 5 按钮 / 6 导航
   7 卡片 / 8 Hero / 9 跑马灯 / 10 视频卡 / 11 榜单 / 12 话题
   13 特性数据 / 14 评价 / 15 CTA下载 / 16 FAQ / 17 弹层提示
   18 页脚 / 19 内页页头 / 20 分页 / 21 滚动动画 / 22 响应式 / 23 附加组件
   ========================================================= */

/* ---------- 1. 设计变量 ---------- */
:root{
  /* 品牌色 3 档 */
  --brand-1:#FF4D6D;      /* 热料红 —— 主色 */
  --brand-2:#FF8A3D;      /* 热度橙 */
  --brand-3:#5B5BD6;      /* 观察紫 */
  /* 点缀色 4 个 */
  --ac-mint:#12C2A0;
  --ac-gold:#FFC24B;
  --ac-pink:#FF6FB5;
  --ac-sky:#3FA9F5;

  /* 中性色 8 个 */
  --ink:#121428;
  --ink-2:#232742;
  --ink-3:#4A4E69;
  --ink-4:#767B99;
  --ink-5:#A5A9C2;
  --line:#E3E7F2;
  --line-2:#EEF1F9;
  --soft:#F7F8FD;
  --white:#FFFFFF;

  /* 渐变 3 组 */
  --grad-hot:linear-gradient(135deg,#FF4D6D 0%,#FF8A3D 100%);
  --grad-cool:linear-gradient(135deg,#5B5BD6 0%,#12C2A0 100%);
  --grad-soft:linear-gradient(135deg,#FFEEF2 0%,#EDF1FF 100%);
  --grad-ink:linear-gradient(135deg,#1B1F3B 0%,#2C2A55 100%);

  /* 圆角 6 档 */
  --r-xs:8px; --r-sm:12px; --r-md:18px; --r-lg:24px; --r-xl:32px; --r-full:999px;

  /* 阴影 5 档 */
  --sh-1:0 2px 8px rgba(27,31,59,.06);
  --sh-2:0 6px 20px rgba(27,31,59,.08);
  --sh-3:0 14px 38px rgba(27,31,59,.10);
  --sh-4:0 24px 60px rgba(27,31,59,.14);
  --sh-brand:0 12px 30px rgba(255,77,109,.28);

  /* 流式字号 */
  --fs-h1:clamp(2.1rem,5.2vw,3.9rem);
  --fs-h2:clamp(1.6rem,3.4vw,2.5rem);
  --fs-h3:clamp(1.18rem,2.1vw,1.5rem);
  --fs-h4:clamp(1.02rem,1.6vw,1.18rem);
  --fs-body:clamp(.94rem,1.05vw,1.02rem);
  --fs-sm:.875rem;
  --fs-xs:.78rem;

  /* 尺寸 */
  --container:1200px;
  --gutter:clamp(16px,4vw,32px);
  --ease:cubic-bezier(.22,.68,.36,1);
  --header-h:72px;
}

/* ---------- 2. 基础重置 ---------- */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:calc(var(--header-h) + 16px)}
body{
  margin:0;
  font-family:"Outfit","Noto Sans SC",-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",sans-serif;
  font-size:var(--fs-body);line-height:1.72;color:var(--ink-2);
  background:var(--white);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;height:auto;display:block;border-radius:inherit}
a{color:inherit;text-decoration:none;transition:color .2s var(--ease)}
ul,ol{margin:0;padding:0;list-style:none}
p{margin:0 0 .9em}
p:last-child{margin-bottom:0}
button{font:inherit;color:inherit;cursor:pointer;border:0;background:none}
input,textarea,select{font:inherit;color:inherit}
h1,h2,h3,h4,h5{margin:0;color:var(--ink);line-height:1.22;letter-spacing:-.01em;font-weight:800}
h1{font-size:var(--fs-h1)}
h2{font-size:var(--fs-h2)}
h3{font-size:var(--fs-h3)}
h4{font-size:var(--fs-h4)}
h5{font-size:1rem}
strong{color:var(--ink);font-weight:700}
:focus-visible{outline:3px solid rgba(91,91,214,.45);outline-offset:3px;border-radius:6px}
::selection{background:rgba(255,77,109,.18)}
[hidden]{display:none!important}

/* ---------- 3. 布局工具 ---------- */
.container{width:100%;max-width:var(--container);margin-inline:auto;padding-inline:var(--gutter)}
.section{padding-block:clamp(52px,7vw,96px)}
.section--tint{background:var(--soft)}
.section--tint2{background:var(--grad-soft)}
.grid{display:grid;gap:clamp(18px,2.4vw,28px)}
.grid-2{grid-template-columns:repeat(2,minmax(0,1fr))}
.grid-3{grid-template-columns:repeat(3,minmax(0,1fr))}
.grid-4{grid-template-columns:repeat(4,minmax(0,1fr))}
.grid-side{display:grid;grid-template-columns:minmax(0,1fr) 340px;gap:clamp(20px,2.6vw,34px);align-items:start}
.stack-sm>*{margin-block:0}.stack-sm>*+*{margin-top:10px}
.stack>*{margin-block:0}.stack>*+*{margin-top:18px}
.center{text-align:center}
.mx-auto{margin-inline:auto}
.mt-0{margin-top:0}.mb-0{margin-bottom:0}
.muted{color:var(--ink-4)}
.divider{height:1px;background:var(--line);border:0;margin-block:clamp(26px,4vw,44px)}
.skip-link{position:absolute;left:-9999px;top:0;background:var(--ink);color:#fff;padding:10px 18px;z-index:200;border-radius:0 0 var(--r-sm) 0}
.skip-link:focus{left:0}

/* ---------- 4. 文字标题组件 ---------- */
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:var(--fs-xs);font-weight:800;letter-spacing:.12em;text-transform:uppercase;
  color:var(--brand-1);background:rgba(255,77,109,.09);
  padding:7px 14px;border-radius:var(--r-full);
}
.eyebrow--cool{color:var(--brand-3);background:rgba(91,91,214,.09)}
.eyebrow--mint{color:#0B9A80;background:rgba(18,194,160,.11)}
.eyebrow .dot{width:7px;height:7px;border-radius:50%;background:var(--brand-1);box-shadow:0 0 0 4px rgba(255,77,109,.16);animation:pulse 1.9s infinite}
.eyebrow--cool .dot{background:var(--brand-3);box-shadow:0 0 0 4px rgba(91,91,214,.16)}
@keyframes pulse{0%,100%{opacity:1;transform:scale(1)}50%{opacity:.45;transform:scale(.75)}}

.section-head{max-width:720px;margin-bottom:clamp(30px,4vw,52px)}
.section-head.center{margin-inline:auto;text-align:center}
.section-head h2{margin-block:16px 14px}
.section-head p{color:var(--ink-4);font-size:1.02rem}
.lead{font-size:clamp(1.02rem,1.35vw,1.16rem);color:var(--ink-3)}
.mark{
  position:relative;z-index:0;display:inline;
  background-image:linear-gradient(180deg,transparent 62%,rgba(255,194,75,.5) 62%);
}
.pill{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;border-radius:var(--r-full);
  font-size:var(--fs-xs);font-weight:700;
  background:var(--line-2);color:var(--ink-3);white-space:nowrap;
}
.pill--hot{background:rgba(255,77,109,.1);color:var(--brand-1)}
.pill--cool{background:rgba(91,91,214,.1);color:var(--brand-3)}
.pill--mint{background:rgba(18,194,160,.12);color:#0B9A80}
.pill--gold{background:rgba(255,194,75,.22);color:#97660B}
.tag{display:inline-block;padding:4px 10px;border-radius:var(--r-sm);background:var(--soft);color:var(--ink-4);font-size:var(--fs-xs);font-weight:600}
.prose{max-width:70ch}
.prose p{color:var(--ink-3)}
.prose h3{margin-top:1.6em;margin-bottom:.5em}
.prose ul li,.prose ol li{position:relative;padding-left:22px;margin-bottom:.5em;color:var(--ink-3)}
.prose ul li::before{content:"";position:absolute;left:6px;top:.72em;width:7px;height:7px;border-radius:50%;background:var(--brand-1)}
.prose li{margin-bottom:.5em}

/* ---------- 5. 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  padding:14px 26px;border-radius:var(--r-full);
  font-weight:700;font-size:.95rem;line-height:1.2;text-align:center;
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),background .22s var(--ease),color .22s var(--ease);
  white-space:nowrap;border:1.5px solid transparent;
}
.btn-primary{background:var(--grad-hot);color:#fff;box-shadow:var(--sh-brand)}
.btn-primary:hover{transform:translateY(-3px);box-shadow:0 18px 38px rgba(255,77,109,.36)}
.btn-dark{background:var(--ink);color:#fff}
.btn-dark:hover{transform:translateY(-3px);box-shadow:var(--sh-3)}
.btn-ghost{background:var(--white);color:var(--ink);border-color:var(--line)}
.btn-ghost:hover{border-color:var(--brand-1);color:var(--brand-1);transform:translateY(-3px);box-shadow:var(--sh-2)}
.btn-soft{background:var(--soft);color:var(--ink-2)}
.btn-soft:hover{background:var(--line-2);transform:translateY(-2px)}
.btn-cool{background:var(--grad-cool);color:#fff;box-shadow:0 12px 30px rgba(91,91,214,.28)}
.btn-cool:hover{transform:translateY(-3px)}
.btn-sm{padding:9px 18px;font-size:.85rem}
.btn-lg{padding:17px 34px;font-size:1.02rem}
.btn-block{width:100%}
.btn .ico{width:18px;height:18px;flex:none}
.btn-group{display:flex;flex-wrap:wrap;gap:14px;align-items:center}

/* ---------- 6. 头部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:90;
  background:rgba(255,255,255,.94);
  border-bottom:1px solid var(--line-2);
  transition:box-shadow .25s var(--ease),background .25s var(--ease);
}
.site-header.is-stuck{box-shadow:var(--sh-2)}
.nav-inner{height:var(--header-h);display:flex;align-items:center;gap:18px}
.brand{display:flex;align-items:center;gap:11px;font-weight:800;color:var(--ink);flex:none}
.brand-mark{width:40px;height:40px;flex:none;border-radius:13px;background:var(--grad-hot);display:grid;place-items:center;box-shadow:0 6px 16px rgba(255,77,109,.32)}
.brand-mark svg{width:24px;height:24px;display:block}
.brand-text{display:flex;flex-direction:column;line-height:1.12}
.brand-text b{font-size:1.06rem;letter-spacing:.01em}
.brand-text span{font-size:.68rem;color:var(--ink-4);font-weight:600;letter-spacing:.16em}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:auto}
.nav-links a{
  position:relative;padding:9px 15px;border-radius:var(--r-full);
  font-weight:650;font-size:.95rem;color:var(--ink-3);
  transition:background .2s var(--ease),color .2s var(--ease);
}
.nav-links a:hover{background:var(--soft);color:var(--ink)}
.nav-links a.is-active{color:var(--brand-1);background:rgba(255,77,109,.08)}
.nav-links>.btn{display:none}
.nav-cta{display:flex;align-items:center;gap:10px;margin-left:12px}
.nav-toggle{
  display:none;margin-left:auto;width:44px;height:44px;border-radius:13px;
  background:var(--soft);place-items:center;
}
.nav-toggle span{display:block;width:19px;height:2px;background:var(--ink);border-radius:2px;transition:transform .25s var(--ease),opacity .2s var(--ease)}
.nav-toggle span+span{margin-top:5px}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
.nav-close{display:none}
.scrim{position:fixed;inset:0;background:rgba(18,20,40,.42);opacity:0;visibility:hidden;transition:opacity .25s var(--ease);z-index:95}
.scrim.is-on{opacity:1;visibility:visible}
body.is-locked{overflow:hidden}

/* ---------- 7. 卡片 ---------- */
.card{
  background:var(--white);border:1px solid var(--line);
  border-radius:var(--r-lg);padding:clamp(20px,2.2vw,28px);
  box-shadow:var(--sh-1);
  transition:transform .3s var(--ease),box-shadow .3s var(--ease),border-color .3s var(--ease);
}
.card:hover{transform:translateY(-6px);box-shadow:var(--sh-3);border-color:transparent}
.card--flat{box-shadow:none}
.card--flat:hover{transform:none;box-shadow:var(--sh-2)}
.card h3,.card h4{margin-bottom:10px}
.card p{color:var(--ink-4);font-size:.94rem}
.card-ico{
  width:52px;height:52px;border-radius:16px;display:grid;place-items:center;
  margin-bottom:18px;background:var(--grad-soft);color:var(--brand-1);
}
.card-ico svg{width:26px;height:26px}
.thumb{display:block;position:relative;overflow:hidden;border-radius:var(--r-md);background:var(--line-2)}
.thumb img{width:100%;height:100%;object-fit:cover;display:block}
.thumb::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(18,20,40,0) 45%,rgba(18,20,40,.55) 100%)}
.thumb>*{position:relative;z-index:2}
.ratio-16x9{aspect-ratio:16/9}
.ratio-4x3{aspect-ratio:4/3}
.ratio-3x4{aspect-ratio:3/4}
.cat-card{position:relative;overflow:hidden;border-radius:var(--r-lg);background:var(--ink);isolate:isolation}
.cat-card .thumb{border-radius:0;position:absolute;inset:0}
.cat-card .thumb img{opacity:.86;transition:transform .5s var(--ease),opacity .4s var(--ease)}
.cat-card:hover .thumb img{transform:scale(1.08);opacity:.95}
.cat-cover{position:relative;z-index:2;display:flex;flex-direction:column;justify-content:flex-end;min-height:210px;padding:22px;color:#fff}
.cat-cover h3{color:#fff;font-size:1.18rem;margin-bottom:6px}
.cat-cover p{color:rgba(255,255,255,.82);font-size:.86rem;line-height:1.6}
.cat-cover .pill{background:rgba(255,255,255,.2);color:#fff;backdrop-filter:blur(6px);align-self:flex-start;margin-bottom:auto}

/* 热度条（品牌标志性组件） */
.heat{height:6px;border-radius:var(--r-full);background:var(--line);overflow:hidden}
.heat>i{display:block;height:100%;border-radius:var(--r-full);background:var(--grad-hot)}
.heat-row{display:flex;align-items:center;gap:10px;font-size:var(--fs-xs);color:var(--ink-4)}
.heat-row .heat{flex:1}
.heat-row b{color:var(--brand-1);font-weight:800;white-space:nowrap}

/* ---------- 8. Hero ---------- */
.hero{position:relative;overflow:hidden;padding-block:clamp(48px,6vw,84px);background:var(--grad-soft)}
.hero::before,.hero::after{content:"";position:absolute;border-radius:50%;filter:blur(2px);z-index:0}
.hero::before{width:420px;height:420px;background:radial-gradient(circle,rgba(255,77,109,.22),transparent 68%);top:-150px;right:-90px}
.hero::after{width:340px;height:340px;background:radial-gradient(circle,rgba(91,91,214,.2),transparent 68%);bottom:-160px;left:-80px}
.hero>.container{position:relative;z-index:1}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:clamp(28px,4vw,56px);align-items:center}
.hero h1{margin-block:20px 18px;letter-spacing:-.02em}
.hero h1 em{font-style:normal;background:var(--grad-hot);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero p.lead{max-width:52ch}
.hero-actions{margin-top:30px}
.hero-badges{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.hero-art{position:relative}
.hero-art .frame{
  position:relative;border-radius:var(--r-xl);overflow:hidden;
  box-shadow:var(--sh-4);background:var(--white);border:6px solid #fff;
}
.hero-art .frame img{width:100%;aspect-ratio:4/5;object-fit:cover}
.float-card{
  position:absolute;background:#fff;border-radius:var(--r-md);
  box-shadow:var(--sh-3);padding:14px 16px;z-index:3;
  display:flex;align-items:center;gap:11px;min-width:172px;
}
.float-card b{display:block;font-size:.95rem;color:var(--ink)}
.float-card span{font-size:.76rem;color:var(--ink-4)}
.float-card .fc-ico{width:34px;height:34px;border-radius:11px;display:grid;place-items:center;flex:none;color:#fff}
.float-card .fc-ico svg{width:18px;height:18px}
.fc-1{top:8%;left:-8%}
.fc-2{bottom:14%;right:-7%}
.fc-mini{
  position:absolute;z-index:3;background:#fff;border-radius:var(--r-full);
  padding:8px 15px;font-size:.8rem;font-weight:700;box-shadow:var(--sh-2);
  display:flex;align-items:center;gap:7px;
}
@keyframes floaty{0%,100%{transform:translateY(0)}50%{transform:translateY(-11px)}}
.stat-strip{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:clamp(12px,2vw,24px);margin-top:clamp(44px,5vw,70px)}
.stat-strip .stat{
  background:rgba(255,255,255,.78);border:1px solid rgba(255,255,255,.9);
  border-radius:var(--r-md);padding:20px 18px;text-align:center;box-shadow:var(--sh-1);
}
.stat b{display:block;font-size:clamp(1.45rem,2.6vw,2.1rem);color:var(--ink);line-height:1.15;font-weight:800}
.stat span{font-size:var(--fs-xs);color:var(--ink-4);font-weight:600}

/* ---------- 9. 跑马灯 ---------- */
.marquee{
  position:relative;overflow:hidden;padding-block:16px;
  background:var(--ink);color:#fff;
  -webkit-mask-image:linear-gradient(90deg,transparent,#000 6%,#000 94%,transparent);
  mask-image:linear-gradient(90deg,transparent,#000 6%,#000 94%,transparent);
}
.marquee-track{display:flex;gap:38px;width:max-content;animation:marquee 34s linear infinite}
.marquee:hover .marquee-track{animation-play-state:paused}
.marquee-item{display:flex;align-items:center;gap:9px;font-size:.9rem;font-weight:600;white-space:nowrap;opacity:.92}
.marquee-item i{width:6px;height:6px;border-radius:50%;background:var(--brand-2);flex:none}
.marquee-item em{font-style:normal;color:var(--brand-2);font-weight:800}
@keyframes marquee{from{transform:translateX(0)}to{transform:translateX(-50%)}}

/* ---------- 10. 视频卡 ---------- */
.vcard{display:flex;flex-direction:column;gap:14px;background:transparent}
.vcard .thumb{cursor:pointer}
.vcard .thumb img{transition:transform .5s var(--ease)}
.vcard:hover .thumb img{transform:scale(1.06)}
.play-btn{
  position:absolute;left:50%;top:50%;transform:translate(-50%,-50%) scale(.9);
  width:58px;height:58px;border-radius:50%;z-index:3;
  background:rgba(255,255,255,.94);display:grid;place-items:center;
  box-shadow:0 10px 26px rgba(18,20,40,.28);
  opacity:0;transition:opacity .3s var(--ease),transform .3s var(--ease);
}
.vcard:hover .play-btn,.vcard .thumb:focus-within .play-btn{opacity:1;transform:translate(-50%,-50%) scale(1)}
.play-btn::before{content:"";width:0;height:0;border-left:14px solid var(--brand-1);border-top:9px solid transparent;border-bottom:9px solid transparent;margin-left:4px}
.vbadge{
  position:absolute;left:12px;top:12px;z-index:3;
  padding:4px 10px;border-radius:var(--r-full);font-size:.72rem;font-weight:700;
  background:rgba(18,20,40,.62);color:#fff;backdrop-filter:blur(6px);
}
.vdur{
  position:absolute;right:12px;bottom:12px;z-index:3;
  padding:3px 9px;border-radius:var(--r-sm);font-size:.72rem;font-weight:700;
  background:rgba(18,20,40,.68);color:#fff;
}
.vcard h3{font-size:1.06rem;line-height:1.45;margin:0}
.vcard h3 a:hover{color:var(--brand-1)}
.vmeta{display:flex;flex-wrap:wrap;gap:12px;font-size:var(--fs-xs);color:var(--ink-4)}
.vmeta b{font-weight:700;color:var(--ink-3)}
.vfoot{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:10px}
.vscore{white-space:nowrap}
.vacts{display:flex;gap:14px;font-size:var(--fs-xs);color:var(--ink-4);white-space:nowrap}
.vacts button{display:inline-flex;align-items:center;gap:5px;color:inherit;transition:color .2s var(--ease)}
.vacts button:hover{color:var(--brand-1)}
.vacts button.is-on{color:var(--brand-1);font-weight:700}

/* ---------- 11. 榜单 ---------- */
.rank-list{display:flex;flex-direction:column;gap:12px}
.rank-item{
  display:grid;grid-template-columns:44px 108px minmax(0,1fr) auto;
  gap:16px;align-items:center;
  background:var(--white);border:1px solid var(--line);border-radius:var(--r-md);
  padding:12px 16px;transition:transform .26s var(--ease),box-shadow .26s var(--ease),border-color .26s var(--ease);
}
.rank-item:hover{transform:translateX(5px);box-shadow:var(--sh-2);border-color:transparent}
.rank-num{
  font-size:1.42rem;font-weight:900;line-height:1;text-align:center;
  background:var(--grad-hot);-webkit-background-clip:text;background-clip:text;color:transparent;
}
.rank-item:nth-child(n+4) .rank-num{background:linear-gradient(135deg,#A5A9C2,#767B99);-webkit-background-clip:text;background-clip:text}
.rank-thumb{display:block;width:108px;height:64px;border-radius:var(--r-sm);overflow:hidden;flex:none}
.rank-thumb img{width:100%;height:100%;object-fit:cover}
.rank-body{min-width:0}
.rank-body h4{font-size:.98rem;line-height:1.5;margin-bottom:6px}
.rank-body h4 a:hover{color:var(--brand-1)}
.rank-body .meta{font-size:var(--fs-xs);color:var(--ink-4);display:flex;flex-wrap:wrap;gap:10px}
.rank-end{text-align:right;font-size:var(--fs-xs);color:var(--ink-4);white-space:nowrap}
.rank-end b{display:block;font-size:1rem;color:var(--brand-1);font-weight:800}
.rank-trend{display:inline-flex;align-items:center;gap:4px;font-weight:800;color:var(--brand-1)}
.rank-trend.up::before{content:"▲";font-size:.66rem}
.rank-trend.down{color:var(--ac-mint)}
.rank-trend.down::before{content:"▼";font-size:.66rem}
.rank-trend.flat{color:var(--ink-5)}
.rank-trend.flat::before{content:"—";font-size:.7rem}

/* ---------- 12. 话题 / 文章列表 ---------- */
.chips{display:flex;flex-wrap:wrap;gap:10px}
.chip{
  padding:9px 18px;border-radius:var(--r-full);border:1.5px solid var(--line);
  background:var(--white);font-size:.9rem;font-weight:650;color:var(--ink-3);
  transition:all .22s var(--ease);
}
.chip:hover{border-color:var(--brand-1);color:var(--brand-1)}
.chip.is-on{background:var(--grad-hot);border-color:transparent;color:#fff;box-shadow:var(--sh-brand)}
.topic-item{
  display:grid;grid-template-columns:150px minmax(0,1fr);gap:20px;align-items:center;
  background:var(--white);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:16px;transition:box-shadow .26s var(--ease),transform .26s var(--ease);
}
.topic-item:hover{box-shadow:var(--sh-2);transform:translateY(-3px)}
.topic-thumb{display:block;width:150px;height:104px;border-radius:var(--r-md);overflow:hidden}
.topic-thumb img{width:100%;height:100%;object-fit:cover}
.topic-body h3{font-size:1.06rem;margin-bottom:8px}
.topic-body p{color:var(--ink-4);font-size:.9rem}
.topic-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:10px}
.article-list{display:flex;flex-direction:column;gap:22px}
.article-item{display:grid;grid-template-columns:230px minmax(0,1fr);gap:22px;align-items:center;padding-bottom:22px;border-bottom:1px solid var(--line)}
.article-item:last-child{border-bottom:0;padding-bottom:0}
.article-item .thumb{width:230px;height:140px}
.article-item h3{font-size:1.14rem;margin-bottom:8px}
.article-item p{color:var(--ink-4);font-size:.92rem}
.article-meta{display:flex;flex-wrap:wrap;gap:12px;font-size:var(--fs-xs);color:var(--ink-4);margin-top:10px}

/* ---------- 13. 特性 / 数据 ---------- */
.feature{display:flex;flex-direction:column;gap:14px}
.feature-num{
  width:46px;height:46px;border-radius:14px;display:grid;place-items:center;
  background:var(--grad-cool);color:#fff;font-weight:800;font-size:1.02rem;
  box-shadow:0 8px 20px rgba(91,91,214,.26);
}
.feature h3{font-size:1.08rem;margin-bottom:8px}
.feature p{color:var(--ink-4);font-size:.93rem}
.checklist{display:flex;flex-direction:column;gap:12px}
.checklist li{display:flex;gap:11px;align-items:flex-start;font-size:.94rem;color:var(--ink-3)}
.checklist li::before{
  content:"✓";flex:none;width:22px;height:22px;border-radius:50%;
  background:rgba(18,194,160,.14);color:#0B9A80;font-size:.72rem;font-weight:800;
  display:grid;place-items:center;margin-top:2px;
}
.big-stats{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:clamp(14px,2vw,26px)}
.big-stats .bs{
  background:var(--white);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:26px 22px;text-align:center;box-shadow:var(--sh-1);
}
.big-stats .bs b{display:block;font-size:clamp(1.6rem,3vw,2.3rem);font-weight:900;line-height:1.1;margin-bottom:6px;background:var(--grad-hot);-webkit-background-clip:text;background-clip:text;color:transparent}
.big-stats .bs span{font-size:var(--fs-sm);color:var(--ink-4);font-weight:600}

/* ---------- 14. 评价 ---------- */
.quote{
  background:var(--white);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:26px;box-shadow:var(--sh-1);display:flex;flex-direction:column;gap:16px;
  transition:transform .28s var(--ease),box-shadow .28s var(--ease);
}
.quote:hover{transform:translateY(-5px);box-shadow:var(--sh-3)}
.quote .q-mark{font-size:2.1rem;line-height:.7;color:var(--brand-1);font-weight:900;opacity:.28}
.quote p{color:var(--ink-3);font-size:.95rem}
.who{display:flex;align-items:center;gap:12px;margin-top:auto}
.who img{width:46px;height:46px;border-radius:50%;object-fit:cover;flex:none}
.who b{display:block;font-size:.94rem;color:var(--ink)}
.who span{font-size:.8rem;color:var(--ink-4)}
.stars{display:flex;gap:2px;color:var(--ac-gold);font-size:.86rem;letter-spacing:1px}

/* ---------- 15. CTA / 下载 ---------- */
.cta-band{position:relative;overflow:hidden;background:var(--grad-ink);color:#fff;border-radius:var(--r-xl);padding:clamp(34px,5vw,62px)}
.cta-band::before{content:"";position:absolute;width:420px;height:420px;border-radius:50%;background:radial-gradient(circle,rgba(255,77,109,.32),transparent 66%);right:-120px;top:-160px}
.cta-band::after{content:"";position:absolute;width:340px;height:340px;border-radius:50%;background:radial-gradient(circle,rgba(91,91,214,.3),transparent 66%);left:-110px;bottom:-150px}
.cta-band>*{position:relative;z-index:2}
.cta-band h1,.cta-band h2,.cta-band h3,.cta-band h4{color:#fff}
.cta-band p{color:rgba(255,255,255,.78)}
.download-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:clamp(28px,4vw,60px);align-items:center}
.phone-mock{
  position:relative;width:min(280px,74vw);margin-inline:auto;
  border-radius:42px;padding:12px;background:var(--grad-ink);
  box-shadow:var(--sh-4);
}
.phone-screen{border-radius:32px;overflow:hidden;background:var(--white);aspect-ratio:9/18.5}
.phone-screen img{width:100%;height:100%;object-fit:cover}
.phone-mock .float-card{min-width:150px;padding:11px 13px}
.phone-mock .fc-1{top:16%;left:-24%}
.phone-mock .fc-2{bottom:20%;right:-22%}
.store-btns{display:flex;flex-wrap:wrap;gap:12px}
.store-btn{
  display:inline-flex;align-items:center;gap:11px;padding:13px 22px;border-radius:var(--r-md);
  background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.22);color:#fff;font-weight:700;
  transition:background .24s var(--ease),transform .24s var(--ease);
}
.store-btn:hover{background:rgba(255,255,255,.18);transform:translateY(-3px)}
.store-btn small{display:block;font-size:.7rem;font-weight:500;color:rgba(255,255,255,.7)}
.store-btn svg{width:22px;height:22px;flex:none}
.qr-box{
  display:flex;gap:16px;align-items:center;padding:16px;border-radius:var(--r-md);
  background:rgba(255,255,255,.09);border:1px solid rgba(255,255,255,.18);
}
.qr-box .qr{width:96px;height:96px;flex:none;background:#fff;border-radius:12px;padding:6px}
.qr-box .qr svg{width:100%;height:100%;display:block}
.qr-box p{font-size:.84rem;color:rgba(255,255,255,.76);margin-bottom:10px}
.qr-box .btn-sm{background:#fff;color:var(--ink)}

/* ---------- 16. FAQ ---------- */
.faq-list{display:flex;flex-direction:column;gap:12px}
.faq-item{background:var(--white);border:1px solid var(--line);border-radius:var(--r-md);overflow:hidden;transition:box-shadow .24s var(--ease)}
.faq-item.is-open{box-shadow:var(--sh-2);border-color:transparent}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 22px;text-align:left;font-weight:700;font-size:1rem;color:var(--ink);
}
.faq-q .qi{
  flex:none;width:28px;height:28px;border-radius:50%;background:var(--soft);
  display:grid;place-items:center;color:var(--brand-1);font-size:1.1rem;line-height:1;
  transition:transform .3s var(--ease),background .3s var(--ease),color .3s var(--ease);
}
.faq-item.is-open .faq-q .qi{transform:rotate(45deg);background:var(--grad-hot);color:#fff}
.faq-a{max-height:0;overflow:hidden;transition:max-height .34s var(--ease)}
.faq-a>div{padding:0 22px 22px;color:var(--ink-4);font-size:.94rem}

/* ---------- 17. 提示条 / 弹层 ---------- */
.notice{
  display:flex;gap:12px;align-items:flex-start;padding:16px 18px;border-radius:var(--r-md);
  background:var(--grad-soft);border:1px solid rgba(91,91,214,.12);font-size:.9rem;color:var(--ink-3);
}
.notice svg{width:20px;height:20px;flex:none;color:var(--brand-3);margin-top:2px}
.modal{position:fixed;inset:0;z-index:120;display:none;align-items:center;justify-content:center;padding:20px}
.modal.is-open{display:flex}
.modal-scrim{position:absolute;inset:0;background:rgba(12,14,28,.66);backdrop-filter:blur(3px)}
.modal-box{
  position:relative;z-index:2;width:min(760px,100%);max-height:88vh;overflow:auto;
  background:var(--white);border-radius:var(--r-lg);box-shadow:var(--sh-4);padding:18px;
}
.modal-box .thumb{margin-bottom:16px}
.modal-close{
  position:absolute;right:14px;top:14px;z-index:5;width:38px;height:38px;border-radius:50%;
  background:rgba(255,255,255,.94);box-shadow:var(--sh-2);display:grid;place-items:center;font-size:1.2rem;line-height:1;color:var(--ink);
}
.modal-body{padding:4px 8px 10px}
.modal-body h3{margin-bottom:10px}
.toast{
  position:fixed;left:50%;bottom:34px;transform:translate(-50%,20px);
  background:var(--ink);color:#fff;padding:13px 24px;border-radius:var(--r-full);
  font-size:.9rem;font-weight:600;box-shadow:var(--sh-4);z-index:200;
  opacity:0;visibility:hidden;transition:all .3s var(--ease);
}
.toast.is-on{opacity:1;visibility:visible;transform:translate(-50%,0)}
.to-top{
  position:fixed;right:22px;bottom:22px;z-index:88;width:46px;height:46px;border-radius:50%;
  background:var(--white);box-shadow:var(--sh-3);display:none;place-items:center;color:var(--ink);
  border:1px solid var(--line);
}
.to-top.is-on{display:grid}
.to-top:hover{background:var(--grad-hot);color:#fff}

/* ---------- 18. 页脚 ---------- */
.site-footer{background:var(--ink);color:rgba(255,255,255,.66);padding-block:clamp(44px,5vw,72px) 28px;margin-top:0}
.site-footer h4{color:#fff;font-size:.98rem;margin-bottom:16px}
.fgrid{display:grid;grid-template-columns:1.4fr repeat(3,1fr);gap:clamp(24px,3vw,44px)}
.fcol ul{display:flex;flex-direction:column;gap:10px}
.fcol a{font-size:.9rem;color:rgba(255,255,255,.66)}
.fcol a:hover{color:#fff}
.fbrand{display:flex;align-items:center;gap:11px;margin-bottom:16px}
.fbrand .brand-mark{width:38px;height:38px;border-radius:12px}
.fbrand .brand-text b{color:#fff}
.fbrand .brand-text span{color:rgba(255,255,255,.5)}
.fcol p{font-size:.88rem;line-height:1.75}
.socials{display:flex;gap:10px;margin-top:18px}
.socials a{width:38px;height:38px;border-radius:12px;background:rgba(255,255,255,.09);display:grid;place-items:center;transition:background .22s var(--ease)}
.socials a:hover{background:var(--brand-1)}
.socials svg{width:18px;height:18px}
.tagcloud{display:flex;flex-wrap:wrap;gap:8px;padding-top:22px;border-top:1px solid rgba(255,255,255,.12);margin-top:34px}
.tagcloud a{font-size:.78rem;padding:5px 12px;border-radius:var(--r-full);background:rgba(255,255,255,.07);color:rgba(255,255,255,.62)}
.tagcloud a:hover{background:rgba(255,77,109,.28);color:#fff}
.fbottom{display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;margin-top:26px;padding-top:22px;border-top:1px solid rgba(255,255,255,.12);font-size:.82rem}
.fbottom a{color:rgba(255,255,255,.6)}
.fdisclaimer{font-size:.76rem;color:rgba(255,255,255,.42);line-height:1.7;margin-top:16px}

/* ---------- 19. 内页页头 ---------- */
.page-head{position:relative;overflow:hidden;padding-block:clamp(40px,5vw,68px);background:var(--grad-soft)}
.page-head::before{content:"";position:absolute;width:380px;height:380px;border-radius:50%;background:radial-gradient(circle,rgba(255,77,109,.18),transparent 68%);top:-160px;right:-60px}
.page-head>.container{position:relative;z-index:1}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:.82rem;color:var(--ink-4);margin-bottom:18px}
.crumbs a:hover{color:var(--brand-1)}
.crumbs li:not(:last-child)::after{content:"›";margin-left:8px;color:var(--ink-5)}
.crumbs li{display:flex;align-items:center}
.page-head h1{margin-bottom:16px;max-width:22ch}
.page-head p{max-width:60ch;color:var(--ink-3)}
.page-head .btn-group{margin-top:26px}

/* ---------- 20. 分页 ---------- */
.pager{display:flex;flex-wrap:wrap;gap:8px;justify-content:center;margin-top:clamp(30px,4vw,48px)}
.pager a,.pager span{
  min-width:42px;height:42px;padding:0 14px;border-radius:var(--r-sm);
  display:inline-flex;align-items:center;justify-content:center;
  border:1.5px solid var(--line);font-weight:700;font-size:.9rem;color:var(--ink-3);
  transition:all .22s var(--ease);
}
.pager a:hover{border-color:var(--brand-1);color:var(--brand-1)}
.pager .is-on{background:var(--grad-hot);border-color:transparent;color:#fff}

/* ---------- 21. 滚动动画 ---------- */
.js-ready [data-reveal]{opacity:0;transform:translateY(26px);transition:opacity .7s var(--ease),transform .7s var(--ease)}
.js-ready [data-reveal].is-in{opacity:1;transform:none}
.js-ready [data-reveal]{animation:reveal-safety .01s linear 2.4s forwards}
@keyframes reveal-safety{to{opacity:1;transform:none}}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}
  .js-ready [data-reveal]{opacity:1;transform:none}
  .marquee-track{animation:none}
}

/* ---------- 22. 响应式 ---------- */
@media (max-width:1080px){
  .grid-4{grid-template-columns:repeat(2,minmax(0,1fr))}
  .big-stats{grid-template-columns:repeat(2,minmax(0,1fr))}
  .fgrid{grid-template-columns:1fr 1fr}
  .grid-side{grid-template-columns:minmax(0,1fr) 300px}
  .float-card.fc-1{left:-2%}
  .float-card.fc-2{right:-2%}
}
@media (max-width:960px){
  .nav-toggle{display:grid}
  .nav-cta{display:none}
  .nav-links{
    position:fixed;right:0;top:0;bottom:0;width:min(330px,86vw);z-index:100;
    background:var(--white);flex-direction:column;align-items:stretch;
    gap:4px;padding:88px 20px 28px;margin:0;
    box-shadow:-14px 0 44px rgba(18,20,40,.16);
    transform:translateX(102%);transition:transform .32s var(--ease);
    overflow-y:auto;
  }
  .nav-links.is-open{transform:none}
  .nav-links a{padding:14px 16px;font-size:1rem;border-radius:var(--r-sm)}
  .nav-links>.btn{display:flex;margin-top:14px}
  .nav-close{display:grid;position:absolute;right:18px;top:20px;width:40px;height:40px;border-radius:50%;background:var(--soft);place-items:center;font-size:1.3rem;line-height:1;color:var(--ink)}
  body.is-locked{overflow:hidden}
  .hero-grid,.download-grid{grid-template-columns:1fr}
  .hero-art{order:-1;max-width:520px;margin-inline:auto}
}
@media (max-width:900px){
  .grid-side{grid-template-columns:1fr}
  .grid-3{grid-template-columns:repeat(2,minmax(0,1fr))}
  .stat-strip{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width:680px){
  .grid-2,.grid-3,.grid-4,.big-stats{grid-template-columns:1fr}
  .stat-strip{grid-template-columns:repeat(2,minmax(0,1fr))}
  .rank-item{grid-template-columns:34px 82px minmax(0,1fr);gap:12px;padding:12px}
  .rank-thumb{width:82px;height:52px}
  .rank-end{grid-column:2/-1;text-align:left;display:flex;gap:14px;align-items:center}
  .rank-end b{font-size:.9rem}
  .topic-item{grid-template-columns:1fr;gap:14px}
  .topic-thumb{width:100%;height:170px}
  .article-item{grid-template-columns:1fr;gap:14px}
  .article-item .thumb{width:100%;height:190px}
  .fgrid{grid-template-columns:1fr}
  .btn-group .btn{flex:1 1 100%}
  .hero-art .float-card{min-width:150px;padding:11px 13px}
  .fc-1{left:0;top:2%}
  .fc-2{right:0;bottom:6%}
  .phone-mock .fc-1{left:-6%}
  .phone-mock .fc-2{right:-6%}
  .cat-cover{min-height:186px}
}
@media (max-width:420px){
  .stat-strip{grid-template-columns:1fr}
  .nav-links{width:100vw}
  .brand-text span{display:none}
  .qr-box{flex-direction:column;align-items:flex-start}
}

/* ---------- 23. 附加组件（内页专用） ---------- */

/* 时间轴（料镜观察） */
.timeline{position:relative;padding-left:34px}
.timeline::before{content:"";position:absolute;left:11px;top:8px;bottom:8px;width:2px;background:linear-gradient(180deg,var(--brand-1),var(--brand-3),transparent)}
.tl-item{position:relative;padding-bottom:26px}
.tl-item:last-child{padding-bottom:0}
.tl-item::before{content:"";position:absolute;left:-34px;top:7px;width:24px;height:24px;border-radius:50%;background:var(--white);border:3px solid var(--brand-1)}
.tl-item h4{font-size:1.02rem;margin-bottom:6px}
.tl-item p{color:var(--ink-4);font-size:.92rem}
.tl-time{display:inline-block;font-size:var(--fs-xs);font-weight:800;color:var(--brand-3);margin-bottom:4px}

/* 目录 / 侧栏小卡 */
.side-card{background:var(--white);border:1px solid var(--line);border-radius:var(--r-lg);padding:22px;box-shadow:var(--sh-1);margin-bottom:20px}
.side-card h3{font-size:1.02rem;margin-bottom:14px;padding-bottom:12px;border-bottom:1px solid var(--line)}
.toc{display:flex;flex-direction:column;gap:2px}
.toc a{padding:8px 12px;border-radius:var(--r-sm);font-size:.9rem;color:var(--ink-3);font-weight:600;border-left:3px solid transparent}
.toc a:hover{background:var(--soft);color:var(--brand-1)}
.toc a.is-on{background:rgba(255,77,109,.07);color:var(--brand-1);border-left-color:var(--brand-1)}

/* 表单 */
.field{display:flex;flex-direction:column;gap:7px;margin-bottom:14px}
.field label{font-size:.84rem;font-weight:700;color:var(--ink-3)}
.field input,.field textarea,.field select{
  width:100%;padding:12px 15px;border-radius:var(--r-sm);
  border:1.5px solid var(--line);background:var(--white);font-size:.94rem;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.field input:focus,.field textarea:focus,.field select:focus{outline:none;border-color:var(--brand-1);box-shadow:0 0 0 4px rgba(255,77,109,.12)}
.field textarea{min-height:110px;resize:vertical}
.inline-form{display:flex;gap:10px;flex-wrap:wrap}
.inline-form input{flex:1 1 200px;padding:13px 16px;border-radius:var(--r-full);border:1.5px solid var(--line);background:var(--white);font-size:.94rem}
.inline-form input:focus{outline:none;border-color:var(--brand-1);box-shadow:0 0 0 4px rgba(255,77,109,.12)}
.form-note{font-size:.78rem;color:var(--ink-5);margin-top:10px}

/* 发布话题 / 评论 */
.composer{background:var(--white);border:1px solid var(--line);border-radius:var(--r-lg);padding:22px;box-shadow:var(--sh-1)}
.composer textarea{width:100%;min-height:96px;padding:13px 15px;border-radius:var(--r-sm);border:1.5px solid var(--line);resize:vertical;font-size:.94rem}
.composer textarea:focus{outline:none;border-color:var(--brand-1);box-shadow:0 0 0 4px rgba(255,77,109,.12)}
.composer-row{display:flex;flex-wrap:wrap;gap:12px;align-items:center;justify-content:space-between;margin-top:14px}
.comment-item{display:flex;gap:14px;padding:18px 0;border-bottom:1px solid var(--line)}
.comment-item:last-child{border-bottom:0}
.comment-item img{width:42px;height:42px;border-radius:50%;object-fit:cover;flex:none}
.comment-item .cb{flex:1;min-width:0}
.comment-item .ch{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-bottom:6px}
.comment-item .ch b{font-size:.94rem;color:var(--ink)}
.comment-item .ch time{font-size:.78rem;color:var(--ink-5)}
.comment-item p{font-size:.92rem;color:var(--ink-3)}
.comment-item .cacts{display:flex;gap:14px;font-size:.8rem;color:var(--ink-4);margin-top:8px}
.comment-item .cacts button:hover{color:var(--brand-1)}

/* 功能矩阵 */
.matrix{width:100%;border-collapse:collapse;font-size:.92rem}
.matrix th,.matrix td{padding:14px 16px;text-align:left;border-bottom:1px solid var(--line)}
.matrix thead th{background:var(--soft);color:var(--ink);font-size:.86rem;letter-spacing:.02em}
.matrix td:first-child{font-weight:700;color:var(--ink)}
.matrix .yes{color:#0B9A80;font-weight:800}
.matrix .no{color:var(--ink-5)}
.matrix-wrap{overflow-x:auto;-webkit-overflow-scrolling:touch;border:1px solid var(--line);border-radius:var(--r-lg);background:var(--white)}

/* 步骤 */
.steps{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:clamp(16px,2vw,24px);counter-reset:st}
.step{position:relative;background:var(--white);border:1px solid var(--line);border-radius:var(--r-lg);padding:24px 22px;box-shadow:var(--sh-1)}
.step::before{
  counter-increment:st;content:counter(st);
  width:40px;height:40px;border-radius:13px;display:grid;place-items:center;
  background:var(--grad-hot);color:#fff;font-weight:900;margin-bottom:16px;
  box-shadow:0 8px 18px rgba(255,77,109,.26);
}
.step h3{font-size:1.04rem;margin-bottom:8px}
.step p{color:var(--ink-4);font-size:.92rem}
@media (max-width:900px){.steps{grid-template-columns:1fr}}

/* 卡片式分类入口 */
.entry-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:clamp(16px,2vw,24px)}
@media (max-width:900px){.entry-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (max-width:560px){.entry-grid{grid-template-columns:1fr}}

/* 筛选条 */
.filter-bar{
  display:flex;flex-wrap:wrap;gap:12px;align-items:center;justify-content:space-between;
  padding:14px 18px;background:var(--white);border:1px solid var(--line);
  border-radius:var(--r-full);box-shadow:var(--sh-1);margin-bottom:26px;
}
@media (max-width:680px){.filter-bar{border-radius:var(--r-lg)}}

/* 空状态 */
.empty{text-align:center;padding:44px 20px;color:var(--ink-4);font-size:.94rem;border:1px dashed var(--line);border-radius:var(--r-lg)}