/*
Theme Name: 带电清洗视频站
Theme URI: https://video.clean361.com
Author: 北京蓝清恒新科技有限公司
Description: 施工视频展示站，内置视频分类管理、SEO 结构化数据与百度视频 sitemap。
Version: 1.0.0
Requires PHP: 7.0
Text Domain: video-station
*/

/* ============================================================
   北京蓝清恒新科技有限公司 · 施工视频站
   主题：电力科技风 Electric Tech · 深空蓝 + 电光青 + 安全黄
   ============================================================ */

/* === VST-CSS-VERSION: 1.2.0-20260905-nav (cache-bust) === */
body::before{
  content:"CSS v1.2.0-20260905-nav ✓";
  position:fixed; bottom:8px; right:8px; z-index:2147483646;
  padding:4px 10px; font:11px/1.4 -apple-system,"PingFang SC",sans-serif;
  color:#04121a; background:#00d8ff; border-radius:2px;
  pointer-events:none;
}

:root{
  --ink:        #060a11;
  --ink-2:      #0b111b;
  --card:       #101825;
  --card-2:     #16202f;
  --line:       rgba(255,255,255,.09);
  --line-2:     rgba(255,255,255,.17);

  --cyan:       #00d8ff;   /* 电光青 · 主色 */
  --cyan-d:     #009fc4;
  --yellow:     #ffc300;   /* 安全黄 */
  --orange:     #ff7a1a;
  --green:      #2fe08a;
  --red:        #ff5c5c;

  --text:       #e8f0fa;
  --text-2:     #93a5bd;
  --text-3:     #64758d;

  --radius:     2px;
  --max:        1320px;
  --ease:       cubic-bezier(.22,.61,.36,1);
  --head-h:     88px;

  --font: "PingFang SC", "HarmonyOS Sans SC", "Microsoft YaHei", -apple-system,
          BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

*,*::before,*::after{ box-sizing:border-box; }
html{ scroll-behavior:smooth; -webkit-text-size-adjust:100%; }

body{
  margin:0; font-family:var(--font);
  background:var(--ink); color:var(--text);
  line-height:1.7; -webkit-font-smoothing:antialiased; overflow-x:hidden;
}
body.is-locked{ overflow:hidden; }

img{ max-width:100%; display:block; }
a{ color:inherit; text-decoration:none; }
button{ font-family:inherit; cursor:pointer; border:0; background:none; color:inherit; }
ul,ol{ margin:0; padding:0; list-style:none; }
::selection{ background:var(--cyan); color:#04121a; }

.wrap{ width:100%; max-width:var(--max); margin:0 auto; padding:0 28px; }

.skip-link{
  position:absolute; left:-9999px; top:0; z-index:200;
  background:var(--cyan); color:#04121a; padding:10px 18px; font-weight:700;
}
.skip-link:focus{ left:12px; top:12px; }

/* ============================================================
   按钮
   ============================================================ */
.btn{
  display:inline-flex; align-items:center; gap:10px;
  padding:15px 30px; font-size:15px; font-weight:700; letter-spacing:.02em;
  border:1px solid transparent; border-radius:var(--radius);
  transition:all .26s var(--ease); white-space:nowrap;
}
.btn em{ font-style:normal; font-weight:800; letter-spacing:.04em; }
.btn--primary{ background:var(--cyan); color:#04121a; }
.btn--primary:hover{ background:#5ce8ff; transform:translateY(-2px); }
.btn--ghost{ border-color:var(--line-2); color:var(--text); }
.btn--ghost:hover{ border-color:var(--cyan); color:var(--cyan); }
.btn--sm{ padding:10px 18px; font-size:13.5px; }
.btn--lg{ padding:19px 40px; font-size:16.5px; }
.btn--block{ display:flex; justify-content:center; width:100%; }

/* ============================================================
   页头
   ============================================================ */
.site-head{
  position:sticky; top:0; z-index:100;
  background:rgba(6,10,17,.94);
  backdrop-filter:blur(16px); -webkit-backdrop-filter:blur(16px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .3s var(--ease), background .3s var(--ease);
}
.site-head.is-stuck{
  background:rgba(6,10,17,.97);
  box-shadow:0 14px 36px rgba(0,0,0,.55), 0 0 0 1px rgba(0,216,255,.08);
}

.head-top{
  border-bottom:1px solid var(--line);
  background:
    linear-gradient(90deg, rgba(0,216,255,.12) 0%, rgba(255,195,0,.08) 50%, rgba(0,216,255,.05) 100%);
  font-size:12.5px; color:var(--text-2);
}
.head-top::before{
  content:""; display:block; height:2px;
  background:linear-gradient(90deg, var(--cyan), var(--yellow) 60%, var(--cyan));
  opacity:.7;
}
.head-top__in{
  display:flex; align-items:center; justify-content:space-between;
  gap:20px; min-height:38px; flex-wrap:wrap;
}
.head-top__slogan{ margin:0; color:var(--text-2); display:flex; align-items:center; gap:18px; flex-wrap:wrap; font-weight:600; letter-spacing:.04em; }
.head-top__slogan::before{
  content:""; display:inline-block; width:6px; height:6px;
  background:var(--cyan); border-radius:50%;
  box-shadow:0 0 0 4px rgba(0,216,255,.18);
  animation:pulse 2.2s ease-in-out infinite;
}
@keyframes pulse{
  0%,100%{ opacity:1; box-shadow:0 0 0 4px rgba(0,216,255,.18); }
  50%{ opacity:.6; box-shadow:0 0 0 8px rgba(0,216,255,.06); }
}
.head-top__tel{ display:inline-flex; align-items:center; gap:6px; }
.head-top__tel::before{ content:"📞"; font-size:13px; }
.head-top__tel a{ color:var(--yellow); font-weight:800; letter-spacing:.04em; font-size:13.5px; }
.head-top__tel a:hover{ text-decoration:underline; }
.head-top__links{ display:flex; gap:18px; color:var(--text-3); }
.head-top__links a:hover{ color:var(--cyan); }

.nav-bar{
  display:flex; align-items:center; gap:28px;
  min-height:var(--head-h);
}
.logo{ flex-shrink:0; transition:transform .26s var(--ease); }
.logo:hover{ transform:translateY(-1px); }
.logo__img{ height:54px; width:auto; display:block; }

.nav{ margin-left:auto; }
.menu{ display:flex; align-items:center; gap:4px; }
.menu li{ position:relative; }
.menu > li > a{
  position:relative; display:block; padding:14px 18px;
  font-size:15.5px; font-weight:700; color:var(--text-2); letter-spacing:.02em;
  transition:color .22s var(--ease);
}
.menu > li > a::before{
  content:""; position:absolute; left:50%; top:0;
  transform:translateX(-50%); width:0; height:3px; background:var(--cyan);
  transition:width .28s var(--ease);
}
.menu > li > a::after{
  content:""; position:absolute; left:18px; right:18px; bottom:6px;
  height:2px; background:var(--cyan);
  transform:scaleX(0); transform-origin:left;
  transition:transform .28s var(--ease);
}
.menu > li > a:hover{ color:var(--text); }
.menu > li > a:hover::before{ width:60%; }
.menu > li > a:hover::after{ transform:scaleX(1); }
/* 当前页高亮 */
.menu > li.current-menu-item > a,
.menu > li.current-menu-ancestor > a{
  color:var(--cyan);
}
.menu > li.current-menu-item > a::before,
.menu > li.current-menu-ancestor > a::before{ width:60%; }

/* 一级菜单带子项时显示向下箭头 */
.menu > li.has-sub > a::after{
  content:""; display:inline-block; width:0; height:0; margin-left:8px;
  border:4px solid transparent; border-top-color:var(--text-2);
  vertical-align:middle; transition:border-color .22s var(--ease);
}
.menu > li.has-sub:hover > a::after{ border-top-color:var(--cyan); }
/* has-sub 的链接不画底部下划线（避免与三角冲突） */
.menu > li.has-sub > a::before{ display:none; }

/* 二级下拉菜单：hover/聚焦父项时显示 */
.menu .sub-menu{
  position:absolute; top:100%; left:0; min-width:240px;
  padding:10px 0; margin:0; list-style:none;
  background:linear-gradient(180deg, var(--ink-2) 0%, rgba(11,17,27,.98) 100%);
  border:1px solid var(--line); border-top:2px solid var(--cyan);
  box-shadow:0 18px 40px rgba(0,0,0,.55), 0 0 0 1px rgba(0,216,255,.08);
  opacity:0; visibility:hidden; transform:translateY(-8px);
  transition:opacity .24s var(--ease), transform .24s var(--ease), visibility .24s;
  z-index:80;
}
.menu .sub-menu li{ display:block; }
.menu .sub-menu li a{
  display:flex; align-items:center; gap:10px;
  padding:11px 20px; font-size:14.5px; font-weight:500;
  color:var(--text-2); white-space:nowrap;
  transition:color .18s var(--ease), background .18s var(--ease), padding-left .18s var(--ease);
}
.menu .sub-menu li a::before{
  content:""; flex-shrink:0; width:6px; height:6px;
  border:1px solid var(--line-2); border-radius:50%;
  transition:all .18s var(--ease);
}
.menu .sub-menu li a::after{ content:none; }
.menu .sub-menu li a:hover{
  color:var(--cyan); background:rgba(0,216,255,.06);
  padding-left:26px;
}
.menu .sub-menu li a:hover::before{
  background:var(--cyan); border-color:var(--cyan);
  box-shadow:0 0 0 3px rgba(0,216,255,.18);
}
.menu > li.has-sub:hover > .sub-menu,
.menu > li.has-sub:focus-within > .sub-menu{
  opacity:1; visibility:visible; transform:translateY(0);
}

/* 移动端二级菜单：始终展开，不做悬浮 */
.drawer-menu .sub-menu{
  display:block; padding:0 0 0 14px; margin:0; list-style:none;
  border-left:2px solid var(--line); background:transparent;
}
.drawer-menu .sub-menu li a{ padding:8px 14px; font-size:14px; }

.nav-bar__right{ display:flex; align-items:center; gap:14px; flex-shrink:0; }
.nav-cta{
  display:inline-flex; align-items:center; gap:10px;
  padding:13px 22px !important; font-size:14.5px;
  box-shadow:0 6px 20px rgba(0,216,255,.28);
}
.nav-cta::before{
  content:""; width:8px; height:8px; background:var(--ink);
  border-radius:50%; box-shadow:0 0 0 0 rgba(6,10,17,.6);
  animation:dot-pulse 1.6s ease-in-out infinite;
}
@keyframes dot-pulse{
  0%,100%{ box-shadow:0 0 0 0 rgba(6,10,17,.4); }
  50%{ box-shadow:0 0 0 6px rgba(6,10,17,0); }
}
.nav-cta em{ font-style:normal; font-weight:800; letter-spacing:.06em; }

.burger{ display:none; width:42px; height:42px; padding:10px; flex-direction:column; justify-content:space-between; }
.burger span{ display:block; height:2px; background:var(--text); transition:all .3s var(--ease); }
.burger.is-open span:nth-child(1){ transform:translateY(9px) rotate(45deg); }
.burger.is-open span:nth-child(2){ opacity:0; }
.burger.is-open span:nth-child(3){ transform:translateY(-9px) rotate(-45deg); }

.drawer{
  display:none; border-top:1px solid var(--line);
  background:var(--ink-2); max-height:0; overflow:hidden;
  transition:max-height .36s var(--ease);
}
.drawer.is-open{ max-height:70vh; overflow-y:auto; }
.drawer-menu li a{
  display:block; padding:14px 28px; font-size:15.5px; font-weight:600;
  border-bottom:1px solid var(--line); color:var(--text-2);
}
.drawer-menu li a:hover{ color:var(--cyan); background:rgba(0,216,255,.05); }

/* ============================================================
   Hero
   ============================================================ */
.hero{ position:relative; min-height:640px; display:flex; align-items:center; overflow:hidden; }
.hero__bg{ position:absolute; inset:0; z-index:0; }
.hero__bg video,
.hero__bg--img{ width:100%; height:100%; object-fit:cover; }
.hero__bg--img{ background-size:cover; background-position:center; filter:brightness(.42); }
/* 静态图 fallback 与 video 同时渲染：video 在前面加载会自动覆盖 */
.hero__bg{ position:absolute; inset:0; z-index:0; overflow:hidden; }
.hero__bg video{ z-index:1; }
.hero__bg--img{ z-index:0; }
.hero__bg::after{
  content:""; position:absolute; inset:0; z-index:2;
  background:linear-gradient(180deg, rgba(6,10,17,.78) 0%, rgba(6,10,17,.55) 45%, var(--ink) 100%);
}
/* 暗角四角发光 */
.hero::before{
  content:""; position:absolute; left:50%; top:50%;
  width:1100px; height:1100px; transform:translate(-50%,-50%);
  background:radial-gradient(circle, rgba(0,216,255,.12) 0%, transparent 60%);
  z-index:2; opacity:.7; pointer-events:none;
}
/* 网格纹理背景层 */
.hero::after{
  content:""; position:absolute; inset:0; z-index:1; pointer-events:none;
  background-image:
    linear-gradient(rgba(0,216,255,.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0,216,255,.04) 1px, transparent 1px);
  background-size:48px 48px;
  mask-image:linear-gradient(180deg, transparent 0%, rgba(0,0,0,.8) 30%, rgba(0,0,0,.8) 70%, transparent 100%);
  -webkit-mask-image:linear-gradient(180deg, transparent 0%, rgba(0,0,0,.8) 30%, rgba(0,0,0,.8) 70%, transparent 100%);
}
.hero__in{ position:relative; z-index:3; padding:130px 0 96px; }

.hero__eyebrow{
  display:inline-flex; align-items:center; gap:10px;
  margin:0 0 22px; padding:7px 18px;
  border:1px solid rgba(255,195,0,.5); color:var(--yellow);
  font-size:12.5px; font-weight:700; letter-spacing:.18em;
  background:rgba(255,195,0,.06);
  animation:hero-rise 1s var(--ease) .2s both;
}
.hero__eyebrow::before{
  content:""; width:8px; height:8px; background:var(--yellow);
  border-radius:50%; box-shadow:0 0 12px var(--yellow);
  animation:eyebrow-blink 1.6s ease-in-out infinite;
}
@keyframes eyebrow-blink{
  0%,100%{ opacity:1; }
  50%{ opacity:.4; }
}
.hero__title{
  margin:0 0 20px; font-size:clamp(34px,5.4vw,62px); font-weight:900;
  line-height:1.18; letter-spacing:-.005em;
  animation:hero-rise 1.1s var(--ease) .35s both;
}
.hero__title-em{
  color:var(--cyan); position:relative; display:inline-block;
  background:linear-gradient(90deg, var(--cyan) 0%, #5ce8ff 50%, var(--cyan) 100%);
  background-size:200% 100%;
  -webkit-background-clip:text; background-clip:text;
  -webkit-text-fill-color:transparent;
  animation:hero-rise 1.1s var(--ease) .35s both, sheen 4s linear infinite;
}
@keyframes sheen{
  0%{ background-position:0% 50%; }
  100%{ background-position:200% 50%; }
}
.hero__sub{
  margin:0 0 34px; max-width:780px;
  font-size:clamp(15.5px,1.6vw,19px); color:var(--text-2); line-height:1.95;
  animation:hero-rise 1s var(--ease) .55s both;
}
.hero__acts{
  display:flex; gap:14px; flex-wrap:wrap; margin-bottom:52px;
  animation:hero-rise 1s var(--ease) .7s both;
}
@keyframes hero-rise{
  from{ opacity:0; transform:translateY(28px); }
  to{ opacity:1; transform:translateY(0); }
}

.hero__facts{
  display:grid; grid-template-columns:repeat(4,minmax(0,1fr));
  gap:0; border-top:1px solid var(--line); padding-top:26px; max-width:780px;
  animation:hero-rise 1s var(--ease) .85s both;
}
.hero__facts li{ padding-right:20px; position:relative; }
.hero__facts li:not(:last-child)::after{
  content:""; position:absolute; right:0; top:8px; bottom:8px;
  width:1px; background:var(--line);
}
.hero__facts strong{ display:block; font-size:30px; font-weight:900; color:var(--cyan); line-height:1.3; }
.hero__facts span{ font-size:12.5px; color:var(--text-3); letter-spacing:.06em; }

/* ============================================================
   通用区块
   ============================================================ */
.section{ padding:96px 0; position:relative; }
.section--alt{ background:var(--ink-2); }

.sec-head{ margin-bottom:38px; max-width:820px; }
.sec-head--row{
  display:flex; align-items:flex-end; justify-content:space-between;
  gap:24px; max-width:none; flex-wrap:wrap;
}
.sec-head__eyebrow{
  margin:0 0 10px; font-size:11.5px; font-weight:800;
  letter-spacing:.24em; color:var(--cyan);
}
.sec-head__title{
  margin:0 0 10px; font-size:clamp(24px,3vw,36px); font-weight:900; line-height:1.3;
  display:flex; align-items:center; gap:12px;
}
.sec-head__title .badge{
  display:inline-flex; align-items:center; padding:3px 10px;
  font-size:12px; font-weight:700; letter-spacing:0;
  color:var(--cyan); border:1px solid rgba(0,216,255,.42); border-radius:999px;
  background:rgba(0,216,255,.06);
}
.sec-head__desc{ margin:0; color:var(--text-2); font-size:15.5px; line-height:1.9; }
.sec-head__more{ color:var(--cyan); font-size:14.5px; font-weight:700; }
.sec-head__more:hover{ text-decoration:underline; }
.sec-head__hint{ margin:0; font-size:13.5px; color:var(--text-3); }
.sec-head__count{ font-size:13px; color:var(--text-3); }
.sec-head__count b{ color:var(--cyan); font-weight:800; }

.reveal{ opacity:0; transform:translateY(26px); transition:opacity .7s var(--ease), transform .7s var(--ease); }
.reveal.is-in{ opacity:1; transform:none; }

/* ============================================================
   公司简介
   ============================================================ */
.intro-card{
  border:1px solid var(--line); border-left:3px solid var(--cyan);
  background:var(--card); padding:44px 48px;
}
.intro-card__title{ margin:0 0 20px; font-size:22px; font-weight:900; }
.intro-card__body{ color:var(--text-2); font-size:15.5px; line-height:2; }
.intro-card__body p{ margin:0 0 14px; }
.intro-card__body p:last-child{ margin-bottom:0; }

/* ============================================================
   数据条
   ============================================================ */
.stat-bar{ background:var(--ink-2); border-top:1px solid var(--line); border-bottom:1px solid var(--line); }
.stat-bar__in{ display:grid; grid-template-columns:repeat(4,1fr); }
.stat{ padding:40px 20px; text-align:center; border-left:1px solid var(--line); }
.stat:first-child{ border-left:0; }
.stat__num{
  display:flex; align-items:baseline; justify-content:center; gap:4px;
  font-size:clamp(28px,3.4vw,42px); font-weight:900; color:var(--cyan);
  font-variant-numeric:tabular-nums; line-height:1.1;
}
.stat__num em{ font-style:normal; font-size:15px; font-weight:700; }
.stat__label{ margin:8px 0 0; font-size:13px; color:var(--text-3); letter-spacing:.06em; }

/* ============================================================
   分类网格
   ============================================================ */
.cat-grid{ display:grid; grid-template-columns:repeat(4,1fr); gap:20px; }
.cat-card{
  display:flex; flex-direction:column;
  background:var(--card); border:1px solid var(--line);
  transition:border-color .28s var(--ease), transform .28s var(--ease);
}
.cat-card:hover{ border-color:var(--cyan); transform:translateY(-4px); }
.cat-card__main{ display:block; }
.cat-card__media{ position:relative; aspect-ratio:16/10; overflow:hidden; background:var(--ink); }
.cat-card__media img{ width:100%; height:100%; object-fit:cover; transition:transform .6s var(--ease); }
.cat-card:hover .cat-card__media img{ transform:scale(1.06); }
.cat-card__count{
  position:absolute; left:12px; bottom:12px; z-index:2;
  background:rgba(6,10,17,.88); color:var(--cyan);
  padding:4px 10px; font-size:11.5px; font-weight:700;
}
.cat-card__body{ padding:20px 20px 16px; }
.cat-card__title{ margin:0 0 8px; font-size:17px; font-weight:800; }
.cat-card__desc{ margin:0; font-size:13px; line-height:1.75; color:var(--text-3); }

.cat-card__subs{
  display:flex; flex-wrap:wrap; gap:6px;
  padding:0 20px 20px; margin-top:auto;
}
.cat-card__subs a{
  display:inline-flex; align-items:center; gap:5px;
  padding:5px 11px; font-size:12.5px; color:var(--text-2);
  border:1px solid var(--line-2); border-radius:999px;
  transition:all .24s var(--ease);
}
.cat-card__subs a:hover{ border-color:var(--cyan); color:var(--cyan); background:rgba(0,216,255,.07); }
.cat-card__subs em{ font-style:normal; font-size:11px; color:var(--text-3); }

/* ============================================================
   视频网格
   ============================================================ */
.vgrid{ display:grid; grid-template-columns:repeat(4,1fr); gap:22px; }
.vgrid--3{ grid-template-columns:repeat(3,1fr); }

.vcard{ background:var(--card); border:1px solid var(--line); transition:border-color .28s var(--ease); }
.vcard:hover{ border-color:var(--line-2); }
.vcard__media{
  position:relative; display:block; aspect-ratio:16/9;
  overflow:hidden; background:#000; cursor:pointer;
}
.vcard__media img{ width:100%; height:100%; object-fit:cover; transition:transform .5s var(--ease), opacity .3s var(--ease); }
.vcard:hover .vcard__media img{ transform:scale(1.05); opacity:.72; }
.vcard__play{
  position:absolute; inset:0; margin:auto;
  width:56px; height:56px; display:grid; place-items:center;
  background:rgba(0,216,255,.92); color:#04121a;
  clip-path:polygon(0 0,100% 0,100% 76%,76% 100%,0 100%);
  transition:transform .3s var(--ease);
}
.vcard__play svg{ width:24px; height:24px; margin-left:3px; }
.vcard:hover .vcard__play{ transform:scale(1.12); }
.vcard__dur{
  position:absolute; right:10px; bottom:10px; z-index:2;
  background:rgba(6,10,17,.9); padding:3px 8px;
  font-size:11.5px; font-weight:700; font-variant-numeric:tabular-nums;
}
.vcard__tag{
  position:absolute; left:10px; top:10px; z-index:2;
  background:var(--yellow); color:#0b111b; padding:3px 9px;
  font-size:11px; font-weight:800;
}
.vcard__body{ padding:18px 18px 20px; }
.vcard__title{ margin:0 0 8px; font-size:15.5px; font-weight:700; line-height:1.55; }
.vcard__title a:hover{ color:var(--cyan); }
.vcard__meta{ margin:0 0 8px; font-size:12.5px; color:var(--cyan); }
.vcard__desc{ margin:0; font-size:13px; line-height:1.75; color:var(--text-3); }
.vcard--sm .vcard__title{ font-size:14px; }

/* ============================================================
   效果对比（拖拽滑块）
   ============================================================ */
.cmp{ display:grid; grid-template-columns:1fr 360px; gap:40px; align-items:start; }

.cmp__slider{
  position:relative; overflow:hidden;
  aspect-ratio:16/9; border:1px solid var(--line-2);
  cursor:ew-resize; user-select:none; touch-action:none;
}
.cmp__img{ position:absolute; inset:0; width:100%; height:100%; object-fit:cover; }
.cmp__wrap{ position:absolute; inset:0; width:50%; overflow:hidden; }
.cmp__img--before{ position:absolute; top:0; left:0; width:100%; height:100%; }
.cmp__label{
  position:absolute; top:14px; z-index:4;
  padding:5px 12px; font-size:11.5px; font-weight:800; letter-spacing:.08em;
  background:rgba(6,10,17,.85); color:var(--text);
}
.cmp__label--l{ left:14px; }
.cmp__label--r{ right:14px; color:var(--cyan); }
.cmp__handle{
  position:absolute; top:0; bottom:0; left:50%; width:2px;
  background:var(--cyan); z-index:5; transform:translateX(-1px);
}
.cmp__handle-line{ position:absolute; inset:0; }
.cmp__handle-btn{
  position:absolute; top:50%; left:50%;
  transform:translate(-50%,-50%);
  width:46px; height:46px; display:grid; place-items:center;
  background:var(--cyan); color:#04121a; border-radius:50%;
  box-shadow:0 4px 18px rgba(0,0,0,.5);
}
.cmp__handle-btn svg{ width:22px; height:22px; }

.cmp__data{ display:grid; grid-template-columns:1fr 1fr; gap:12px; margin-bottom:22px; }
.cmp__item{
  border:1px solid var(--line); background:var(--card);
  padding:18px 16px; text-align:center;
}
.cmp__item strong{ display:block; font-size:22px; font-weight:900; color:var(--cyan); line-height:1.3; }
.cmp__item span{ font-size:12.5px; color:var(--text-3); }
.cmp__caption{ margin:0 0 18px; font-size:14px; color:var(--text-2); }
.cmp__note{ margin:16px 0 0; font-size:12px; color:var(--text-3); line-height:1.8; }

/* ============================================================
   为什么选我们
   ============================================================ */
.why-grid{ display:grid; grid-template-columns:repeat(4,1fr); gap:20px; }
.why{ padding:32px 26px; border:1px solid var(--line); background:var(--card); }
.why__num{
  display:block; margin-bottom:14px; font-size:13px; font-weight:900;
  letter-spacing:.18em; color:var(--cyan);
}
.why__title{ margin:0 0 12px; font-size:17px; font-weight:800; }
.why__text{ margin:0; font-size:14px; line-height:1.9; color:var(--text-3); }

/* ============================================================
   CTA
   ============================================================ */
.cta-sec{
  padding:74px 0;
  background:linear-gradient(100deg, rgba(0,216,255,.1), rgba(255,195,0,.05));
  border-top:1px solid var(--line); border-bottom:1px solid var(--line);
}
.cta-sec__in{
  display:flex; align-items:center; justify-content:space-between;
  gap:40px; flex-wrap:wrap;
}
.cta-sec__title{ margin:0 0 10px; font-size:clamp(21px,2.6vw,30px); font-weight:900; line-height:1.4; }
.cta-sec__desc{ margin:0; color:var(--text-2); font-size:15px; line-height:1.9; max-width:640px; }
.cta-sec__acts{ text-align:right; }
.cta-sec__wx{ margin:14px 0 0; font-size:14px; color:var(--text-2); }

/* ============================================================
   页面头部 + 面包屑
   ============================================================ */
.page-head{
  position:relative; padding:118px 0 96px;
  border-bottom:1px solid var(--line-2);
  background:
    radial-gradient(ellipse 80% 60% at 80% 0%, rgba(0,216,255,.08), transparent 60%),
    linear-gradient(180deg, var(--card) 0%, var(--ink) 100%);
  overflow:hidden;
}
.page-head::before{
  content:""; position:absolute; left:0; top:96px; height:2px; width:64px;
  background:var(--cyan); box-shadow:72px 0 0 var(--yellow);
}
.page-head__bg{ position:absolute; inset:0; opacity:.38; background-size:cover; background-position:center; filter:saturate(1.05); }
.page-head__bg::after{ content:""; position:absolute; inset:0; background:linear-gradient(180deg, rgba(6,10,17,.42) 0%, rgba(6,10,17,.78) 100%); }
.page-head__in{ position:relative; z-index:2; }

.crumb{ display:flex; align-items:center; gap:9px; flex-wrap:wrap; font-size:13px; color:var(--text-3); margin-bottom:18px; }
.crumb a{ color:var(--text-2); }
.crumb a:hover{ color:var(--cyan); }
.crumb__sep{ color:var(--text-3); opacity:.6; }
.crumb__cur{ color:var(--text); }

.page-head__eyebrow{
  display:inline-flex; align-items:center; gap:8px;
  margin:0 0 14px; padding:5px 14px;
  font-size:12.5px; font-weight:800; letter-spacing:.18em;
  color:var(--cyan);
  border:1px solid rgba(0,216,255,.42); border-radius:999px;
  background:rgba(0,216,255,.06);
}
.page-head__eyebrow::before{
  content:""; width:6px; height:6px; background:var(--cyan);
  box-shadow:0 0 0 4px rgba(0,216,255,.18); border-radius:50%;
}
.page-head__title{ margin:0 0 14px; font-size:clamp(30px,4.5vw,54px); font-weight:900; line-height:1.22; letter-spacing:-.01em; }
.page-head__meta{ margin:0 0 22px; color:var(--text-2); font-size:16px; line-height:1.7; max-width:760px; }
.page-head__count{
  display:inline-flex; align-items:center; gap:8px;
  margin-left:14px; padding:4px 12px;
  border:1px solid var(--line-2); font-size:12.5px; color:var(--cyan); font-weight:700;
}
.page-head__count::before{
  content:""; width:6px; height:6px; background:var(--cyan); border-radius:50%;
}

.page-head__stats{
  display:flex; flex-wrap:wrap; gap:10px 22px;
  margin:0 0 26px; padding:14px 0;
  border-top:1px dashed var(--line-2);
  border-bottom:1px dashed var(--line-2);
  list-style:none;
}
.page-head__stats li{
  display:flex; align-items:center; gap:8px;
  font-size:13.5px; color:var(--text-2);
}
.page-head__stats b{ color:var(--text); font-weight:800; font-size:15px; }
.page-head__stats .dot{ width:4px; height:4px; background:var(--text-3); border-radius:50%; }

.page-head__cta{ display:flex; flex-wrap:wrap; gap:12px; align-items:center; }
.page-head__cta .btn--lg{ padding:15px 28px; font-size:15px; }
.page-head__cta-hint{ font-size:13px; color:var(--text-3); }

/* ============================================================
   子分类导航
   ============================================================ */
.sub-nav{ border-bottom:1px solid var(--line); background:var(--ink-2); }
.sub-nav__list{ display:flex; gap:4px; overflow-x:auto; padding:12px 0; }
.sub-nav__list::-webkit-scrollbar{ height:0; }
.sub-nav__list a{
  display:block; padding:9px 18px; white-space:nowrap;
  font-size:14px; font-weight:600; color:var(--text-2);
  border:1px solid transparent; border-radius:999px;
  transition:all .24s var(--ease);
}
.sub-nav__list a:hover{ color:var(--text); border-color:var(--line-2); }
.sub-nav__list a.is-active{ background:var(--cyan); color:#04121a; border-color:var(--cyan); }

/* ============================================================
   长文排版（SEO 正文主体）
   ============================================================ */
.cat-intro{ position:relative; }
.cat-intro .prose{ max-width:none; font-size:15.5px; line-height:2; color:var(--text-2); }
.cat-intro__head{
  display:flex; align-items:flex-end; justify-content:space-between; gap:18px;
  margin-bottom:22px; padding-bottom:16px;
  border-bottom:1px solid var(--line);
}
.cat-intro__title{ margin:0; font-size:20px; font-weight:900; color:var(--text); display:flex; align-items:center; gap:10px; }
.cat-intro__title::before{
  content:""; width:3px; height:18px; background:var(--cyan); display:inline-block;
}
.cat-intro__hint{ margin:0; font-size:13px; color:var(--text-3); }
.cat-intro__toggle{
  display:inline-flex; align-items:center; gap:6px;
  padding:6px 14px; font-size:13px; font-weight:700;
  color:var(--cyan); border:1px solid rgba(0,216,255,.4);
  background:rgba(0,216,255,.05); border-radius:999px;
  cursor:pointer; transition:all .24s var(--ease);
}
.cat-intro__toggle:hover{ background:rgba(0,216,255,.12); }
.cat-intro__toggle svg{ width:12px; height:12px; transition:transform .24s var(--ease); }
.cat-intro__toggle.is-open svg{ transform:rotate(180deg); }
.cat-intro__body{ transition:max-height .35s var(--ease); }
.cat-intro__body.is-collapsed{ max-height:560px; overflow:hidden; position:relative; }
.cat-intro__body.is-collapsed::after{
  content:""; position:absolute; left:0; right:0; bottom:0; height:90px;
  background:linear-gradient(180deg, transparent 0%, var(--ink) 100%);
  pointer-events:none;
}
.prose{ max-width:none; font-size:15.5px; line-height:2; color:var(--text-2); }
.prose h2{
  margin:38px 0 16px; padding-left:14px;
  border-left:3px solid var(--cyan);
  font-size:21px; font-weight:900; color:var(--text); line-height:1.5;
}
.prose h2:first-child{ margin-top:0; }
.prose h3{ margin:28px 0 12px; font-size:17.5px; font-weight:800; color:var(--text); }
.prose p{ margin:0 0 16px; }
.prose ul, .prose ol{ margin:0 0 20px; padding-left:22px; }
.prose ul{ list-style:disc; }
.prose ol{ list-style:decimal; }
.prose li{ margin-bottom:10px; }
.prose strong{ color:var(--text); font-weight:700; }
.prose a{ color:var(--cyan); text-decoration:underline; }
.prose img{ border-radius:var(--radius); margin:22px 0; }
.prose blockquote{
  margin:22px 0; padding:16px 22px;
  border-left:3px solid var(--yellow); background:var(--card); color:var(--text-2);
}
.prose table{ width:100%; border-collapse:collapse; margin:22px 0; font-size:14.5px; }
.prose th, .prose td{ border:1px solid var(--line); padding:11px 14px; text-align:left; }
.prose th{ background:var(--card); color:var(--text); font-weight:700; }
.prose__placeholder{
  padding:22px 26px; border:1px dashed var(--line-2);
  background:var(--card); color:var(--text-3); font-size:14.5px;
}
.prose__placeholder strong{ color:var(--yellow); }

/* ============================================================
   视频详情页
   ============================================================ */
.vpage{ padding:44px 0 90px; }
.vpage__grid{ display:grid; grid-template-columns:1fr 340px; gap:44px; align-items:start; }

.player{
  position:relative; aspect-ratio:16/9; overflow:hidden;
  background:#000; border:1px solid var(--line-2);
}
.player video{ width:100%; height:100%; object-fit:contain; display:block; }
.player__fallback{ width:100%; height:100%; object-fit:cover; opacity:.35; }
.player__tip{
  position:absolute; inset:0; display:grid; place-content:center; gap:6px; text-align:center;
}
.player__tip p{ margin:0; font-size:16px; font-weight:800; color:var(--yellow); }
.player__tip span{ font-size:12.5px; color:var(--text-3); }
.player__dur{
  position:absolute; right:12px; top:12px; z-index:3;
  background:rgba(6,10,17,.9); padding:4px 10px;
  font-size:12px; font-weight:700; font-variant-numeric:tabular-nums;
}

.vpage__title{ margin:30px 0 18px; font-size:clamp(23px,2.8vw,32px); font-weight:900; line-height:1.4; }

.outcomes{ display:flex; flex-wrap:wrap; gap:10px; margin:0 0 30px; }
.outcomes li{
  padding:9px 16px; border:1px solid var(--line-2);
  background:var(--card); font-size:13.5px; color:var(--cyan); font-weight:700;
}

.vpage__prose{ padding-top:8px; border-top:1px solid var(--line); }
.vpage__prose h2:first-child{ margin-top:30px; }

.vpage__h2{ margin:56px 0 24px; font-size:20px; font-weight:900; }

.panel{
  background:var(--card); border:1px solid var(--line);
  padding:24px 22px; margin-bottom:20px;
}
.panel__title{
  margin:0 0 18px; padding-bottom:12px; border-bottom:1px solid var(--line);
  font-size:14.5px; font-weight:800; letter-spacing:.06em;
}
.panel__text{ margin:0 0 18px; font-size:14px; line-height:1.9; color:var(--text-2); }
.panel__wx{ margin:12px 0 0; font-size:13px; color:var(--text-3); text-align:center; }
.panel--cta{ border-color:var(--cyan); }

.meta-list{ margin:0; }
.meta-list dt{ font-size:11.5px; letter-spacing:.12em; color:var(--text-3); font-weight:700; margin-top:14px; }
.meta-list dt:first-child{ margin-top:0; }
.meta-list dd{ margin:3px 0 0; font-size:14.5px; color:var(--text); line-height:1.7; }

.side-cats li{ border-bottom:1px solid var(--line); }
.side-cats li:last-child{ border-bottom:0; }
.side-cats__p{
  display:block; padding:11px 0; font-size:14.5px; font-weight:700; color:var(--text);
}
.side-cats__p:hover{ color:var(--cyan); }
.side-cats__c{ display:flex; flex-direction:column; gap:2px; padding:0 0 10px 12px; }
.side-cats__c a{
  display:block; padding:6px 12px; font-size:13.5px; color:var(--text-3);
  border-left:1px solid var(--line);
}
.side-cats__c a:hover{ color:var(--text-2); border-left-color:var(--line-2); }
.side-cats__c a.is-cur{ color:var(--cyan); border-left-color:var(--cyan); }

/* ============================================================
   灯箱
   ============================================================ */
.lightbox{
  position:fixed; inset:0; z-index:200;
  display:none; align-items:center; justify-content:center;
  background:rgba(3,6,10,.94); padding:28px;
}
.lightbox.is-open{ display:flex; }
.lightbox__box{
  position:relative; width:100%; max-width:1080px;
  border:1px solid var(--line-2); background:#000;
}
.lightbox__stage{ position:relative; aspect-ratio:16/9; background:#000; }
.lightbox__stage video,
.lightbox__stage img{ width:100%; height:100%; object-fit:contain; display:block; }
.lightbox__tips{
  position:absolute; left:0; right:0; bottom:0; z-index:3;
  display:flex; gap:22px; flex-wrap:wrap;
  padding:14px 18px; font-size:12px; color:var(--text-2);
  background:linear-gradient(0deg, rgba(0,0,0,.85), transparent);
}
.lightbox__tips i{
  font-style:normal; display:inline-block; margin-right:6px;
  padding:2px 7px; background:var(--cyan); color:#04121a; font-weight:800;
}
.lightbox__close{
  position:absolute; top:-48px; right:0; z-index:5;
  width:40px; height:40px; display:grid; place-items:center;
  border:1px solid var(--line-2); color:var(--text); font-size:22px; line-height:1;
}
.lightbox__close:hover{ border-color:var(--cyan); color:var(--cyan); }

/* ============================================================
   分页 / 空状态
   ============================================================ */
.pager{ margin-top:48px; }
.pager .page-numbers{ display:flex; gap:8px; justify-content:center; flex-wrap:wrap; }
.pager .page-numbers li{ list-style:none; }
.pager .page-numbers a,
.pager .page-numbers span{
  display:block; padding:10px 16px; border:1px solid var(--line-2);
  font-size:14px; color:var(--text-2); transition:all .24s var(--ease);
}
.pager .page-numbers a:hover{ border-color:var(--cyan); color:var(--cyan); }
.pager .page-numbers .current{ background:var(--cyan); border-color:var(--cyan); color:#04121a; font-weight:700; }

.empty{
  padding:54px 28px 60px; text-align:center;
  border:1px dashed var(--line-2); color:var(--text-3);
  background:var(--ink-2); position:relative;
}
.empty::before{
  content:""; position:absolute; left:50%; top:-22px; transform:translateX(-50%);
  width:44px; height:44px; border-radius:50%;
  background:var(--card); border:1px solid var(--line-2);
  background-image:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%2300d8ff' stroke-width='1.8'><rect x='3' y='6' width='14' height='12' rx='1'/><path d='M17 10l4-3v10l-4-3'/></svg>");
  background-size:20px 20px; background-repeat:no-repeat; background-position:center;
}
.empty p{ margin:0 0 10px; font-size:14.5px; line-height:1.9; }
.empty p:first-of-type{ margin-top:14px; font-size:16px; color:var(--text); font-weight:700; }
.empty p:last-child{ margin-bottom:0; }
.empty a{ color:var(--cyan); text-decoration:underline; }
.empty__steps{
  display:grid; grid-template-columns:repeat(4,1fr); gap:14px;
  margin:28px 0 14px; counter-reset:empty-step;
}
.empty__step{
  padding:18px 14px; background:var(--card); border:1px solid var(--line);
  counter-increment:empty-step; text-align:left;
}
.empty__step::before{
  content:counter(empty-step, decimal-leading-zero);
  display:block; font-size:24px; font-weight:900; color:var(--cyan);
  font-family:"SF Mono","Menlo","Consolas",monospace; line-height:1; margin-bottom:10px;
}
.empty__step b{ display:block; color:var(--text); font-size:13.5px; margin-bottom:4px; }
.empty__step span{ color:var(--text-3); font-size:12.5px; line-height:1.7; }
.empty__cta{ margin-top:18px; }

/* ============================================================
   页脚
   ============================================================ */
.site-foot{ background:var(--ink-2); border-top:1px solid var(--line); padding:64px 0 0; }
.foot-grid{ display:grid; grid-template-columns:1.4fr 1.6fr 1fr; gap:48px; padding-bottom:44px; }

.foot-logo{ height:44px; width:auto; margin-bottom:20px; }
.foot-intro{ font-size:13.5px; line-height:1.95; color:var(--text-3); }
.foot-intro p{ margin:0 0 10px; }

.foot-title{
  margin:0 0 20px; padding-bottom:12px; border-bottom:1px solid var(--line);
  font-size:14.5px; font-weight:800; letter-spacing:.06em;
}
.foot-cats{ display:grid; grid-template-columns:1fr 1fr; gap:22px 28px; }
.foot-cat__parent{ font-size:14.5px; font-weight:700; color:var(--text); }
.foot-cat__parent:hover{ color:var(--cyan); }
.foot-cat__children{ display:flex; flex-direction:column; gap:6px; margin-top:9px; }
.foot-cat__children a{ font-size:13px; color:var(--text-3); line-height:1.6; }
.foot-cat__children a:hover{ color:var(--text-2); }

.foot-contact li{ display:flex; gap:12px; margin-bottom:12px; font-size:13.5px; }
.foot-contact .k{ flex:none; width:36px; color:var(--text-3); }
.foot-contact .v{ color:var(--text-2); }
.foot-contact a.v{ color:var(--yellow); font-weight:700; }
.foot-cta{ margin-top:20px; }

.foot-bar{
  border-top:1px solid var(--line); padding:22px 0 30px;
  display:flex; align-items:center; justify-content:space-between; gap:20px; flex-wrap:wrap;
}
.foot-note, .foot-copy{ margin:0; font-size:12.5px; color:var(--text-3); }
.foot-copy a:hover{ color:var(--cyan); }

/* ============================================================
   回到顶部
   ============================================================ */
.to-top{
  position:fixed; right:24px; bottom:24px; z-index:90;
  width:46px; height:46px; display:grid; place-items:center;
  background:var(--cyan); color:#04121a;
  opacity:0; pointer-events:none; transform:translateY(14px);
  transition:all .3s var(--ease);
}
.to-top.is-show{ opacity:1; pointer-events:auto; transform:none; }
.to-top svg{ width:20px; height:20px; }

/* ============================================================
   响应式
   ============================================================ */
@media (max-width:1180px){
  .cat-grid{ grid-template-columns:repeat(2,1fr); }
  .vgrid{ grid-template-columns:repeat(3,1fr); }
  .vgrid--3{ grid-template-columns:repeat(2,1fr); }
  .why-grid{ grid-template-columns:repeat(2,1fr); }
  .vpage__grid{ grid-template-columns:1fr 300px; gap:32px; }
  .foot-grid{ grid-template-columns:1.2fr 1.4fr 1fr; gap:32px; }
  .empty__steps{ grid-template-columns:repeat(2,1fr); }
}

@media (max-width:960px){
  .nav, .nav-cta{ display:none; }
  .burger{ display:flex; }
  .drawer{ display:block; }
  .nav-bar{ justify-content:space-between; }
  .cmp{ grid-template-columns:1fr; gap:28px; }
  .vpage__grid{ grid-template-columns:1fr; }
  .foot-grid{ grid-template-columns:1fr 1fr; gap:36px; }
  .hero__facts{ grid-template-columns:repeat(2,1fr); gap:18px 0; }
  .stat-bar__in{ grid-template-columns:repeat(2,1fr); }
  .stat:nth-child(3){ border-left:0; }
  .stat:nth-child(n+3){ border-top:1px solid var(--line); }
  .page-head{ padding:90px 0 72px; }
  .page-head__title{ font-size:clamp(26px,5vw,40px); }
}

@media (max-width:680px){
  .wrap{ padding:0 20px; }
  .section{ padding:64px 0; }
  .cat-grid{ grid-template-columns:1fr; }
  .vgrid, .vgrid--3{ grid-template-columns:1fr; }
  .why-grid{ grid-template-columns:1fr; }
  .foot-grid{ grid-template-columns:1fr; }
  .foot-cats{ grid-template-columns:1fr; }
  .hero{ min-height:0; }
  .hero__in{ padding:70px 0 50px; }
  .page-head{ padding:72px 0 56px; }
  .page-head::before{ display:none; }
  .empty__steps{ grid-template-columns:1fr 1fr; }
  .cat-intro__head{ flex-direction:column; align-items:flex-start; gap:10px; }
}

@media (max-width:680px){
  .wrap{ padding:0 20px; }
  .section{ padding:64px 0; }
  .cat-grid{ grid-template-columns:1fr; }
  .vgrid, .vgrid--3{ grid-template-columns:1fr; }
  .why-grid{ grid-template-columns:1fr; }
  .foot-grid{ grid-template-columns:1fr; }
  .foot-cats{ grid-template-columns:1fr; }
  .hero{ min-height:0; }
  .hero__in{ padding:70px 0 50px; }
  .intro-card{ padding:28px 24px; }
  .cta-sec__acts{ text-align:left; }
  .prose h2{ font-size:18.5px; }
  .lightbox{ padding:14px; }
  .lightbox__close{ top:-44px; }
  .foot-bar{ flex-direction:column; align-items:flex-start; }
}

@media (prefers-reduced-motion: reduce){
  html{ scroll-behavior:auto; }
  .reveal{ opacity:1; transform:none; transition:none; }
  .vcard__media img, .cat-card__media img{ transition:none; }
}

/* ============================================================
   参考站同款 · 新区块（首页 4 段全部用 r- 前缀避免冲老样式）
   - r-sec-head：上下两栏 flex（左侧标题/描述 + 右侧备注）
   - .pain / .safety / .compare / .faq 全部用 grid + reveal
   ============================================================ */

/* —— 区块标题 r-sec-head —— */
.r-sec-head{
  display:flex; align-items:flex-end; justify-content:space-between;
  gap:40px; margin-bottom:54px; flex-wrap:wrap;
}
.r-sec-head__left{ max-width:680px; }
.r-eyebrow{
  display:inline-flex; align-items:center; gap:10px;
  font-size:12px; font-weight:700; letter-spacing:.22em;
  text-transform:uppercase; color:var(--cyan); margin-bottom:16px;
}
.r-eyebrow::before{ content:""; width:26px; height:2px; background:var(--cyan); }
.r-sec-title{
  margin:0 0 14px; font-size:clamp(29px,3.5vw,45px);
  line-height:1.2; font-weight:800; letter-spacing:-.01em;
  color:var(--text);
}
.r-sec-title em{ font-style:normal; color:var(--cyan); }
.r-sec-desc{ margin:0; color:var(--text-2); font-size:16px; line-height:1.85; max-width:620px; }
.r-sec-head__note{
  color:var(--text-3); font-size:13px; line-height:1.9;
  border-left:2px solid var(--line-2); padding-left:16px; max-width:290px;
}

/* —— 痛点 (.pain) —— */
.pain{
  display:grid; grid-template-columns:repeat(4,1fr); gap:20px;
}
.pain__card{
  background:var(--card); border:1px solid var(--line);
  border-top:2px solid var(--red);
  padding:30px 24px; border-radius:var(--radius);
  transition:all .35s var(--ease);
}
.pain__card:hover{ transform:translateY(-6px); background:var(--card-2); border-color:rgba(255,92,92,.4); }
.pain__ico{
  width:46px; height:46px; margin-bottom:18px;
  background:rgba(255,92,92,.1); border:1px solid rgba(255,92,92,.25);
  display:grid; place-items:center; color:var(--red);
}
.pain__ico svg{ width:23px; height:23px; }
.pain__card h3{ margin:0 0 10px; font-size:17px; font-weight:800; color:var(--text); }
.pain__card p{ margin:0 0 14px; font-size:13.5px; color:var(--text-2); line-height:1.8; }
.pain__data{
  font-size:12px; color:var(--red); font-weight:700;
  letter-spacing:.04em; border-top:1px dashed var(--line-2); padding-top:12px;
}

/* —— 安全 (.safety + .safe + .spec) —— */
.safety{
  display:grid; grid-template-columns:repeat(3,1fr); gap:22px;
}
.safe{
  background:var(--card); border:1px solid var(--line);
  padding:30px 26px; border-radius:var(--radius);
  transition:all .35s var(--ease);
  position:relative; overflow:hidden;
}
.safe::before{
  content:""; position:absolute; top:0; left:0; width:100%; height:3px;
  background:linear-gradient(90deg, var(--cyan), var(--yellow));
  transform:scaleX(0); transform-origin:left;
  transition:transform .4s var(--ease);
}
.safe:hover{ transform:translateY(-6px); background:var(--card-2); border-color:var(--line-2); }
.safe:hover::before{ transform:scaleX(1); }
.safe__ico{
  width:48px; height:48px; margin-bottom:18px;
  background:rgba(0,216,255,.1); border:1px solid rgba(0,216,255,.25);
  color:var(--cyan); display:grid; place-items:center;
}
.safe__ico svg{ width:24px; height:24px; }
.safe h3{ margin:0 0 10px; font-size:17px; font-weight:800; color:var(--text); }
.safe p{ margin:0; font-size:13.5px; color:var(--text-2); line-height:1.8; }
.safe__tag{
  display:inline-block; margin-top:14px; font-size:11px;
  letter-spacing:.12em; color:var(--yellow); font-weight:700;
}

/* 药剂参数表 (.spec) */
.spec{
  margin-top:26px; border:1px solid var(--line);
  border-radius:var(--radius); overflow:hidden;
}
.spec__row{
  display:grid; grid-template-columns:repeat(4,1fr);
  border-bottom:1px solid var(--line);
}
.spec__row:last-child{ border-bottom:0; }
.spec__row > div{ padding:20px 22px; border-right:1px solid var(--line); }
.spec__row > div:last-child{ border-right:0; }
.spec__row dt{
  font-size:11.5px; letter-spacing:.16em; color:var(--text-3);
  font-weight:700; margin-bottom:8px;
}
.spec__row dd{ margin:0; font-size:19px; font-weight:800; color:var(--cyan); }
.spec__row dd small{ font-size:12px; color:var(--text-3); font-weight:600; margin-left:4px; }

/* —— 对比 (.compare-wrap / .compare / .result-list) —— */
.compare-wrap{
  display:grid; grid-template-columns:1.35fr 1fr;
  gap:44px; align-items:center;
}
.compare{
  position:relative; aspect-ratio:4/3; overflow:hidden;
  border:1px solid var(--line-2); border-radius:var(--radius);
  background:#000; user-select:none; cursor:ew-resize; touch-action:none;
}
.compare__after,
.compare__before{ position:absolute; top:0; left:0; height:100%; }
.compare__after{ width:100%; }
.compare__after img{ width:100%; height:100%; object-fit:cover; }
.compare__before{ width:50%; overflow:hidden; border-right:2px solid var(--cyan); }
.compare__before img{ height:100%; width:100%; object-fit:cover; object-position:left top; }

.compare__tag{
  position:absolute; top:14px; z-index:4;
  padding:5px 12px; font-size:11.5px; font-weight:800; letter-spacing:.1em;
  background:rgba(6,10,17,.85); color:#fff;
}
.compare__tag--l{ left:14px; border-left:3px solid var(--red); }
.compare__tag--r{ right:14px; border-left:3px solid var(--green); }

.compare__handle{
  position:absolute; top:0; bottom:0; left:50%; width:44px; z-index:5;
  transform:translateX(-50%); display:grid; place-items:center;
  pointer-events:none;
}
.compare__handle::before{
  content:""; position:absolute; top:0; bottom:0; left:50%; width:2px;
  background:#fff; transform:translateX(-50%);
  box-shadow:0 0 12px rgba(0,216,255,.8);
}
.compare__handle i{
  position:relative; width:44px; height:44px; border-radius:50%;
  background:#fff; color:#04121a; display:grid; place-items:center;
  box-shadow:0 6px 22px rgba(0,0,0,.5);
}
.compare__handle i svg{ width:20px; height:20px; }

.compare__hint{
  position:absolute; left:50%; bottom:16px; transform:translateX(-50%);
  z-index:4; background:rgba(6,10,17,.8); color:var(--text-2);
  padding:6px 14px; font-size:12px; letter-spacing:.06em;
  border-radius:999px; white-space:nowrap;
  transition:opacity .4s var(--ease);
}
.compare.is-touched .compare__hint{ opacity:0; }

.compare__side{ /* 让右栏内容紧凑 */ }
.result-list{ list-style:none; margin:0 0 26px; padding:0; }
.result-list li{
  display:flex; align-items:baseline; gap:14px;
  padding:16px 0; border-bottom:1px solid var(--line);
}
.result-list li:last-child{ border:0; }
.result-list b{
  font-size:26px; font-weight:900; color:var(--green);
  line-height:1; min-width:104px; letter-spacing:-.01em;
  display:flex; align-items:baseline;
}
.result-list b i{ font-style:normal; font-size:14px; margin-left:2px; font-weight:700; color:var(--green); }
.result-list div strong{
  display:block; font-size:14.5px; font-weight:700;
  margin-bottom:3px; color:var(--text);
}
.result-list div span{ font-size:13px; color:var(--text-3); line-height:1.7; }
.btn-row{ display:flex; gap:12px; flex-wrap:wrap; }

/* —— FAQ —— */
.faq{ border-top:1px solid var(--line); }
.faq__item{ border-bottom:1px solid var(--line); }
.faq__q{
  width:100%; display:flex; align-items:center; justify-content:space-between;
  gap:24px; padding:24px 4px; text-align:left;
  font-size:16.5px; font-weight:700; color:var(--text);
  transition:color .25s var(--ease);
  background:none; border:0; cursor:pointer;
}
.faq__q:hover{ color:var(--cyan); }
.faq__q i{
  flex:none; width:28px; height:28px; border:1px solid var(--line-2);
  border-radius:var(--radius); display:grid; place-items:center;
  color:var(--cyan); font-style:normal; font-size:17px; font-weight:400;
  transition:all .3s var(--ease);
}
.faq__item.is-open .faq__q i{
  background:var(--cyan); color:#04121a; transform:rotate(45deg);
}
.faq__a{
  max-height:0; overflow:hidden;
  transition:max-height .4s var(--ease), padding .4s var(--ease);
}
.faq__a p{
  margin:0; padding:0 60px 26px 4px;
  font-size:14.5px; color:var(--text-2); line-height:1.95;
}
.faq__item.is-open .faq__a{ max-height:420px; }

/* —— 移动端 —— */
@media (max-width:980px){
  .pain{ grid-template-columns:repeat(2,1fr); }
  .safety{ grid-template-columns:repeat(2,1fr); }
  .compare-wrap{ grid-template-columns:1fr; gap:30px; }
  .spec__row{ grid-template-columns:repeat(2,1fr); }
  .spec__row > div:nth-child(2){ border-right:0; }
  .spec__row > div:nth-child(-n+2){ border-bottom:1px solid var(--line); }
}
@media (max-width:560px){
  .pain{ grid-template-columns:1fr; }
  .safety{ grid-template-columns:1fr; }
  .faq__q{ font-size:15px; padding:18px 4px; gap:14px; }
  .faq__a p{ padding-right:14px; font-size:13.5px; }
  .r-sec-head{ gap:24px; }
  .r-sec-title{ font-size:26px; }
  .compare__tag{ font-size:10.5px; padding:4px 10px; }
  .result-list b{ font-size:22px; min-width:84px; }
  .btn-row .btn{ flex:1; min-width:160px; }
}