/* ============================================================
   BÓCHE 博澈 · 男士运动洗护品牌官网
   主色系：低饱和午夜深蓝（Midnight Navy）全站基调
   ============================================================ */

:root{
  /* —— 午夜深蓝梯度（低饱和） —— */
  --nav-1000:#070E1B;   /* 最深：首屏 / 宣言区 / 页脚 */
  --nav-950 :#0C1728;   /* 页面底色 */
  --nav-900 :#121F36;   /* 交替区块 */
  --nav-850 :#16263A;   /* 卡片面 */
  --nav-800 :#1B2E45;   /* 卡片 hover / 高亮面 */
  --nav-700 :#24384F;   /* 强调面 / 输入框 */

  /* —— 描边 —— */
  --line:rgba(146,158,174,.13);
  --line-2:rgba(146,158,174,.24);
  --line-3:rgba(146,158,174,.38);

  /* —— 瓶色点缀（派生自喷砂瓶身 #354052 的自然高光 #48576B） —— */
  --ice:#949DA9;
  --ice-2:#707C8B;
  --ice-3:#5C6B7D;
  --ice-dim:rgba(112,124,139,.16);

  /* —— 文字 —— */
  --text:#E8EFF6;
  --text-2:#A6B7C9;
  --text-3:#78899C;

  /* —— 唯一暖色 —— */
  --heat:#E36B4A;
  --heat-dim:rgba(227,107,74,.14);

  --wrap:1240px;
  --wrap-wide:1320px;
  --wrap-narrow:760px;

  --f-latin:"Inter","Neue Haas Grotesk","Helvetica Neue",Arial,sans-serif;
  --f-cn:"Noto Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  --f-mono:"IBM Plex Mono","SFMono-Regular",Consolas,monospace;

  --ease:cubic-bezier(.22,.9,.28,1);
  --hdr-h:76px;
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;background:var(--nav-950);color:var(--text);
  font-family:var(--f-latin),var(--f-cn);font-size:16px;line-height:1.75;
  -webkit-font-smoothing:antialiased;overflow-x:hidden;
}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
::selection{background:var(--ice);color:var(--nav-1000)}
:focus-visible{outline:2px solid var(--ice-2);outline-offset:3px;border-radius:2px}

/* ——— 布局 ——— */
.wrap{width:100%;max-width:var(--wrap);margin:0 auto;padding:0 clamp(20px,4vw,72px)}
.wrap-wide{max-width:var(--wrap-wide)}
.wrap-narrow{max-width:var(--wrap-narrow)}
.sec{padding:clamp(76px,9vw,140px) 0;position:relative}
.sec-alt{background:var(--nav-900)}
.sec-deep{background:var(--nav-1000)}
.sec-line{border-top:1px solid var(--line)}

/* ——— 排版 ——— */
.eyebrow{
  display:inline-flex;align-items:center;gap:12px;
  font-size:11px;font-weight:800;letter-spacing:.42em;text-transform:uppercase;
  color:var(--ice-2);margin-bottom:20px;
}
.eyebrow::before{content:"";width:26px;height:1px;background:var(--ice-2);opacity:.7}
h1,.h1{font-size:clamp(34px,5.4vw,62px);line-height:1.08;font-weight:900;letter-spacing:-.02em}
h2,.h2{font-size:clamp(26px,3.4vw,44px);line-height:1.18;font-weight:900;letter-spacing:-.02em}
h3,.h3{font-size:clamp(18px,1.9vw,24px);line-height:1.3;font-weight:800;letter-spacing:-.01em}
h4,.h4{font-size:17px;font-weight:800;letter-spacing:-.01em}
.lead{font-size:clamp(15px,1.35vw,18px);line-height:1.8;color:var(--text-2);max-width:62ch}
.body{font-size:15px;line-height:1.85;color:var(--text-2)}
.small{font-size:13.5px;line-height:1.75;color:var(--text-3)}
.mono{font-family:var(--f-mono);font-size:11.5px;letter-spacing:.14em;color:var(--ice-2)}
.dim{color:var(--text-3)}
.sec-head{max-width:70ch;margin-bottom:clamp(36px,4.5vw,60px)}
.sec-head .lead{margin-top:18px}

/* ——— 按钮 ——— */
.btn{
  display:inline-flex;align-items:center;gap:10px;
  height:52px;padding:0 28px;border-radius:2px;
  font-size:14px;font-weight:700;letter-spacing:.02em;white-space:nowrap;
  transition:background .28s var(--ease),color .28s var(--ease),
             border-color .28s var(--ease),transform .28s var(--ease);
}
.btn svg{flex:none;transition:transform .28s var(--ease)}
.btn:hover svg{transform:translateX(4px)}
.btn-ice{background:var(--ice);color:var(--nav-1000)}
.btn-ice:hover{background:#C3D6EC}
.btn-ghost{border:1px solid var(--line-3);color:var(--text)}
.btn-ghost:hover{background:var(--nav-800);border-color:var(--ice-2)}
.btn-navy{background:var(--nav-800);color:var(--text);border:1px solid var(--line-2)}
.btn-navy:hover{background:var(--nav-700);border-color:var(--ice-2)}
.btn-sm{height:40px;padding:0 18px;font-size:12.5px}
.btn-row{display:flex;flex-wrap:wrap;gap:14px}
.link-arrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13.5px;font-weight:700;color:var(--ice-2);
  padding-bottom:3px;border-bottom:1px solid transparent;
  transition:border-color .3s var(--ease),gap .3s var(--ease);
}
.link-arrow:hover{border-bottom-color:var(--ice-2);gap:12px}

/* ——— 标签 ——— */
.tag{
  display:inline-block;font-size:11.5px;font-weight:700;letter-spacing:.04em;
  padding:5px 11px;border:1px solid var(--line-2);color:var(--text-2);border-radius:2px;
}
.tag-ice{background:var(--ice-dim);border-color:rgba(168,191,218,.3);color:var(--ice)}
.tag-heat{background:var(--heat-dim);border-color:rgba(227,107,74,.34);color:#F0937A}
.tag-row{display:flex;flex-wrap:wrap;gap:8px}

/* ============================================================
   顶部导航
   ============================================================ */
.hdr{
  position:fixed;inset:0 0 auto;z-index:100;height:var(--hdr-h);
  background:transparent;border-bottom:1px solid transparent;
  transition:height .34s var(--ease),background .34s var(--ease),border-color .34s var(--ease);
}
.hdr.scrolled{
  height:60px;background:rgba(12,23,40,.82);
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
  border-bottom-color:var(--line);
}
.hdr-in{display:flex;align-items:center;gap:20px;height:100%}
.brand{display:flex;align-items:center;gap:10px;flex:none}
.brand img{width:28px;height:21px;object-fit:contain}
.brand-word{font-size:19px;font-weight:900;letter-spacing:.03em;color:var(--ice)}
.nav{display:flex;align-items:center;gap:clamp(10px,1.5vw,26px);margin-left:auto}
.nav a{
  position:relative;font-size:13.5px;font-weight:500;color:var(--text-2);
  padding:5px 0;white-space:nowrap;transition:color .3s var(--ease);
}
.nav a::after{
  content:"";position:absolute;left:0;bottom:0;width:0;height:1.5px;
  background:var(--ice);transition:width .4s var(--ease);
}
.nav a:hover{color:var(--text)}
.nav a:hover::after{width:100%}
.nav a[aria-current="page"]{color:var(--ice);font-weight:700}
.nav a[aria-current="page"]::after{width:100%}
.hdr-cta{flex:none;margin-left:6px}
.burger{display:none;width:40px;height:40px;position:relative;flex:none;margin-left:auto}
.burger span{
  position:absolute;left:9px;width:22px;height:1.5px;background:var(--text);
  transition:transform .3s var(--ease),opacity .3s var(--ease);
}
.burger span:first-child{top:16px}
.burger span:last-child{top:23px}
.burger[aria-expanded="true"] span:first-child{transform:translateY(3.5px) rotate(45deg)}
.burger[aria-expanded="true"] span:last-child{transform:translateY(-3.5px) rotate(-45deg)}

@media (max-width:1000px){
  .nav{
    position:fixed;inset:0;flex-direction:column;align-items:flex-start;justify-content:center;
    gap:4px;margin:0;padding:0 clamp(28px,8vw,64px);
    background:rgba(7,14,27,.97);-webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px);
    transform:translateY(-100%);opacity:0;pointer-events:none;
    transition:transform .42s var(--ease),opacity .32s var(--ease);
  }
  .nav.open{transform:none;opacity:1;pointer-events:auto}
  .nav a{font-size:24px;font-weight:800;color:var(--text);padding:12px 0;width:100%;
         border-bottom:1px solid var(--line)}
  .nav a::after{display:none}
  .nav a[aria-current="page"]{color:var(--ice)}
  .burger{display:block}
  .hdr-cta{display:none}
}

/* ============================================================
   首屏 Hero
   ============================================================ */
.hero{
  position:relative;min-height:100dvh;display:flex;align-items:center;
  padding:calc(var(--hdr-h) + 60px) 0 90px;overflow:hidden;background:var(--nav-1000);
}
.hero-bg{position:absolute;inset:0;z-index:0}
.hero-bg img{width:100%;height:100%;object-fit:cover;opacity:.42}
.hero-bg::after{
  content:"";position:absolute;inset:0;
  background:
    radial-gradient(120% 90% at 78% 42%,rgba(122,143,166,.16),transparent 62%),
    linear-gradient(100deg,var(--nav-1000) 4%,rgba(7,14,27,.86) 42%,rgba(7,14,27,.5) 78%);
}
.hero-mark{
  position:absolute;right:-4vw;top:50%;transform:translateY(-50%);
  width:min(620px,52vw);opacity:.14;pointer-events:none;z-index:1;
}
.hero-in{position:relative;z-index:2;display:grid;grid-template-columns:1.04fr .96fr;
  gap:clamp(32px,5vw,80px);align-items:center;width:100%}
.hero h1{margin-bottom:24px}
.hero h1 em{font-style:normal;color:var(--ice)}
.hero .lead{margin-bottom:34px}
.hero-sub{font-size:13px;font-weight:700;letter-spacing:.3em;text-transform:uppercase;
  color:var(--ice-2);margin-bottom:26px;display:flex;align-items:center;gap:12px}
.hero-sub .sub-mark{height:17px;width:auto;opacity:.92;flex:none}
.hero-specs{display:flex;gap:clamp(20px,3vw,46px);margin-top:52px;padding-top:26px;
  border-top:1px solid var(--line)}
.hero-specs div b{display:block;font-family:var(--f-latin);font-size:clamp(18px,1.9vw,24px);
  font-weight:900;color:var(--text);letter-spacing:-.01em}
.hero-specs div span{display:block;font-size:11.5px;color:var(--text-3);margin-top:5px}
.hero-vis{position:relative}
.hero-vis .card-shot{
  position:relative;border:1px solid var(--line-2);background:var(--nav-900);
  overflow:hidden;aspect-ratio:4/5;
}
.hero-vis .card-shot img{width:100%;height:100%;object-fit:cover}
.hero-badge{
  position:absolute;left:-22px;bottom:34px;background:var(--nav-850);
  border:1px solid var(--line-2);padding:16px 20px;display:flex;align-items:center;gap:14px;
  box-shadow:0 24px 60px rgba(0,0,0,.5);
}
.hero-badge img{width:34px;height:26px;object-fit:contain}
.hero-badge b{display:block;font-family:var(--f-mono);font-size:11px;letter-spacing:.2em;color:var(--ice)}
.hero-badge span{display:block;font-size:11px;color:var(--text-3);margin-top:3px}
.speedlines{position:absolute;inset:0;z-index:1;overflow:hidden;pointer-events:none}
.speedlines i{
  position:absolute;height:1.5px;width:130px;opacity:0;
  background:linear-gradient(90deg,transparent,var(--ice));
  animation:fly 3.4s linear infinite;
}
@keyframes fly{
  0%{transform:translate3d(-160px,0,0);opacity:0}
  22%{opacity:.42}
  100%{transform:translate3d(58vw,0,0);opacity:0}
}
.scroll-cue{
  position:absolute;left:50%;bottom:26px;transform:translateX(-50%);z-index:2;
  font-family:var(--f-mono);font-size:10px;letter-spacing:.28em;color:var(--text-3);
  display:flex;flex-direction:column;align-items:center;gap:10px;
}
.scroll-cue::after{content:"";width:1px;height:38px;
  background:linear-gradient(180deg,var(--ice-2),transparent);animation:cue 2.2s var(--ease) infinite}
@keyframes cue{0%,100%{opacity:.3;transform:scaleY(.6)}50%{opacity:1;transform:scaleY(1)}}

@media (max-width:900px){
  .hero{min-height:auto;padding:calc(var(--hdr-h) + 44px) 0 64px}
  .hero-in{grid-template-columns:1fr;gap:38px}
  .hero-vis{order:2}
  .hero-vis .card-shot{aspect-ratio:4/3}
  .hero-badge{left:0;bottom:-16px;padding:12px 16px}
  .hero-specs{gap:18px;margin-top:38px}
  .scroll-cue{display:none}
  .hero-mark{width:78vw;right:-16vw}
}

/* ============================================================
   首屏 · 居中宣言版（越你的界）
   ============================================================ */
.hero--c{justify-content:center;text-align:center}
.hero-slats{display:none;position:absolute;inset:0;z-index:0;
  background:repeating-linear-gradient(90deg, rgba(150,182,214,.05) 0 1px, transparent 1px clamp(52px,7vw,110px))}
.hero-slats::after{content:"";position:absolute;inset:0;
  background:linear-gradient(180deg, rgba(7,14,27,.6), transparent 32%, transparent 66%, rgba(7,14,27,.72))}
.hero-glow{position:absolute;left:50%;top:44%;transform:translate(-50%,-50%);z-index:1;
  width:min(66vw,600px);aspect-ratio:1;border-radius:50%;pointer-events:none;
  background:radial-gradient(circle, rgba(111,179,222,.18), rgba(111,179,222,.06) 46%, transparent 70%)}
.hero-core{position:relative;z-index:2;padding:0 22px;max-width:1000px;margin:0 auto}
.hero-o{width:clamp(120px,16vw,208px);height:auto;margin:0 auto;display:block;
  filter:drop-shadow(0 8px 32px rgba(111,179,222,.22))}
.hero-slogan{margin:clamp(20px,3vw,32px) 0 0;font-family:var(--f-mono);font-size:clamp(11px,1.1vw,13px);
  letter-spacing:.5em;text-transform:uppercase;color:var(--ice-2)}
.hero-yue{margin:clamp(14px,2vw,22px) 0 0;font-size:clamp(58px,9vw,118px);font-weight:800;
  line-height:1.02;letter-spacing:.04em;color:var(--text)}
.hero-prop{margin:clamp(18px,2.4vw,28px) auto 0;max-width:34em;font-size:clamp(14px,1.4vw,17px);
  line-height:1.9;color:var(--text-2)}
.hero-pills{display:flex;flex-wrap:wrap;justify-content:center;gap:clamp(8px,1.2vw,14px);
  margin-top:clamp(26px,3.4vw,42px)}
.hero-pills span{font-size:12.5px;letter-spacing:.14em;color:var(--text-2);
  border:1px solid var(--line-2);border-radius:999px;padding:9px 18px;background:rgba(22,38,58,.4)}
.hero-cta{display:flex;justify-content:center;margin-top:clamp(30px,3.8vw,46px)}

/* ——— 品牌故事 ——— */
.brand-story{background:var(--nav-950)}
.brand-story .sec-head{margin-bottom:clamp(28px,3.4vw,44px)}
.story-lead{font-size:clamp(17px,1.9vw,22px);line-height:1.9;color:var(--text);font-weight:400;
  margin:0 0 clamp(20px,2.4vw,30px)}
.story-p{font-size:clamp(14px,1.4vw,16px);line-height:2.0;color:var(--text-2);margin:0 0 clamp(16px,2vw,24px)}
.story-p b{color:var(--ice);font-weight:600}
@media (max-width:900px){
  .hero--c{padding:calc(var(--hdr-h) + 36px) 0 72px}
  .hero-yue{font-size:clamp(44px,13.5vw,72px)}
  .hero-slogan{letter-spacing:.38em}
}

/* ============================================================
   跑马灯
   ============================================================ */
.marquee{
  background:var(--nav-800);border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  overflow:hidden;padding:16px 0;white-space:nowrap;
}
.marquee-track{display:inline-flex;align-items:center;gap:38px;animation:slide 34s linear infinite;will-change:transform}
.marquee:hover .marquee-track{animation-play-state:paused}
.marquee span{font-family:var(--f-latin);font-size:12px;font-weight:700;
  letter-spacing:.28em;text-transform:uppercase;color:var(--text-2)}
.marquee i{width:16px;height:15px;flex:none;opacity:.95;
  background:url("../img/mark-o-ice2.png") center/contain no-repeat}
@keyframes slide{from{transform:translateX(0)}to{transform:translateX(-50%)}}

/* ——— 心率脉冲分隔 ——— */
.pulse{height:56px;background:var(--nav-950);overflow:hidden;position:relative}
.pulse svg{position:absolute;left:0;top:50%;transform:translateY(-50%);width:200%;height:56px}
.pulse path{
  fill:none;stroke:var(--ice-2);stroke-width:1.4;opacity:.5;
  stroke-dasharray:340 900;animation:ecg 5.2s linear infinite;
}
@keyframes ecg{from{stroke-dashoffset:1240}to{stroke-dashoffset:0}}

/* ——— 依克多因水合壳 · 动态分子图表 ——— */
.ecto-shell{position:relative;width:100%;aspect-ratio:1216/757;overflow:hidden;
  background:#050E1C}
.ecto-shell canvas{position:absolute;inset:0;width:100%!important;height:100%!important;display:block}
.ecto-shell noscript img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.ecto-cap{position:absolute;left:20px;bottom:16px;display:flex;align-items:center;gap:12px;
  font-family:var(--f-mono);font-size:11px;letter-spacing:.24em;color:var(--ice-2);
  text-transform:uppercase;pointer-events:none}
.ecto-cap .dash{display:inline-block;width:34px;height:1px;background:var(--ice-2)}

/* ============================================================
   通用卡片
   ============================================================ */
.grid{display:grid;gap:clamp(16px,2vw,24px)}
.g2{grid-template-columns:repeat(2,1fr)}
.g3{grid-template-columns:repeat(3,1fr)}
.g4{grid-template-columns:repeat(4,1fr)}
.card{
  background:var(--nav-850);border:1px solid var(--line);border-radius:2px;
  padding:clamp(22px,2.6vw,34px);position:relative;overflow:hidden;
  transition:transform .34s var(--ease),border-color .34s var(--ease),background .34s var(--ease);
}
.card:hover{transform:translateY(-6px);border-color:var(--line-3);background:var(--nav-800)}
.card::after{
  content:"";position:absolute;left:0;right:0;top:0;height:2px;
  background:linear-gradient(90deg,var(--ice-2),transparent);
  transform:scaleX(0);transform-origin:left;transition:transform .42s var(--ease);
}
.card:hover::after{transform:scaleX(1)}
.card .num{
  font-family:var(--f-mono);font-size:11px;font-weight:700;letter-spacing:.2em;
  color:var(--ice-2);display:block;margin-bottom:14px;
}
.card h3{margin-bottom:12px}
.card p{font-size:14px;line-height:1.8;color:var(--text-2)}
.card .tag-row{margin-top:18px}

/* ============================================================
   运动后问题（痛点）
   ============================================================ */
.pain-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;
  background:var(--line);border:1px solid var(--line)}
.pain-cell{background:var(--nav-950);padding:clamp(24px,2.6vw,34px);position:relative}
.pain-cell:hover{background:var(--nav-900)}
.pain-cell svg{width:30px;height:30px;stroke:var(--ice-3);fill:none;stroke-width:1.5;
  margin-bottom:20px;stroke-linecap:round;stroke-linejoin:round}
.pain-cell h4{margin-bottom:10px}
.pain-cell p{font-size:13.5px;color:var(--text-3);line-height:1.75}
.pain-cell.heat::before{
  content:"";position:absolute;right:-20px;bottom:-20px;width:130px;height:130px;
  border-radius:50%;pointer-events:none;
  background:radial-gradient(circle,rgba(227,107,74,.3),transparent 66%);
}
.pain-cell .idx{position:absolute;right:18px;top:16px;font-family:var(--f-mono);
  font-size:10px;letter-spacing:.2em;color:var(--text-3)}
@media (max-width:900px){.pain-grid{grid-template-columns:repeat(2,1fr)}}
@media (max-width:520px){.pain-grid{grid-template-columns:1fr}}

/* ============================================================
   产品卡片 / 时间轴
   ============================================================ */
.timeline{position:relative;display:grid;grid-template-columns:repeat(8,1fr);gap:0;margin-top:46px}
.timeline::before{content:"";position:absolute;left:0;right:0;top:15px;height:1px;background:var(--line-2)}
.tl-node{position:relative;padding:0 10px}
.tl-dot{
  width:31px;height:31px;border-radius:50%;background:var(--nav-900);
  border:1px solid var(--line-3);display:flex;align-items:center;justify-content:center;
  font-family:var(--f-mono);font-size:11px;color:var(--text-2);position:relative;z-index:2;
  transition:background .3s var(--ease),color .3s var(--ease),border-color .3s var(--ease);
}
.tl-node:hover .tl-dot{background:var(--ice);color:var(--nav-1000);border-color:var(--ice)}
.tl-node .tl-label{display:block;margin-top:16px;font-size:12px;font-weight:700;color:var(--text-2)}

.pcard{
  background:var(--nav-850);border:1px solid var(--line);border-radius:2px;overflow:hidden;
  display:flex;flex-direction:column;height:100%;
  transition:transform .34s var(--ease),border-color .34s var(--ease);
}
.pcard:hover{transform:translateY(-6px);border-color:var(--line-3)}
.pcard-shot{position:relative;aspect-ratio:4/5;overflow:hidden;background:var(--nav-900)}
.pcard-shot img{width:100%;height:100%;object-fit:cover;transition:transform 1.4s var(--ease)}
.pcard:hover .pcard-shot img{transform:scale(1.05)}
.pcard-band{position:absolute;left:0;top:0;bottom:0;width:3px}
.pcard-body{padding:20px 22px 24px;display:flex;flex-direction:column;flex:1}
.pcard-step{font-family:var(--f-mono);font-size:10px;letter-spacing:.2em;color:var(--ice-2);margin-bottom:9px}
.pcard h4{margin-bottom:7px}
.pcard .scene{font-size:12px;color:var(--text-3);margin-bottom:12px}
.pcard .desc{font-size:13.5px;line-height:1.75;color:var(--text-2);flex:1}
.pcard .meta{margin-top:14px;padding-top:14px;border-top:1px solid var(--line);
  display:flex;justify-content:space-between;align-items:center}
.pcard .meta .spec{font-family:var(--f-mono);font-size:12px;color:var(--text-3)}
@media (max-width:900px){.timeline{grid-template-columns:repeat(3,1fr);gap:28px 0}
  .timeline::before{display:none}}

/* ============================================================
   科技区（左图右文）
   ============================================================ */
.split{display:grid;grid-template-columns:minmax(0,.86fr) minmax(0,1.14fr);
  gap:clamp(28px,4.5vw,72px);align-items:center}
.split.reverse{grid-template-columns:minmax(0,1.14fr) minmax(0,.86fr)}
.split-media{border:1px solid var(--line);background:var(--nav-850);overflow:hidden;position:relative}
.split-media img{width:100%;height:100%;object-fit:cover;aspect-ratio:4/3}
.layer-list{border-top:1px solid var(--line)}
.layer{
  display:grid;grid-template-columns:auto minmax(0,1fr);gap:20px;
  padding:22px 0;border-bottom:1px solid var(--line);
  transition:padding-left .3s var(--ease),border-color .3s var(--ease);
}
.layer:hover{padding-left:10px;border-bottom-color:var(--line-3)}
.layer .k{font-family:var(--f-mono);font-size:11px;letter-spacing:.16em;color:var(--ice-2);
  padding-top:4px;min-width:104px}
.layer b{display:block;font-size:15px;font-weight:800;margin-bottom:6px}
.layer p{font-size:13.5px;color:var(--text-2);line-height:1.75}
.layer .feel{display:inline-block;margin-top:9px;font-size:13px;font-weight:700;color:var(--ice)}
@media (max-width:900px){
  .split,.split.reverse{grid-template-columns:1fr}
}

/* ============================================================
   运动场景
   ============================================================ */
.sport-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:clamp(14px,1.6vw,20px)}
.sport-card{position:relative;overflow:hidden;border:1px solid var(--line);background:var(--nav-900);
  aspect-ratio:3/4;display:flex;flex-direction:column;justify-content:flex-end}
.sport-card img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;
  opacity:.72;transition:transform 1.4s var(--ease),opacity .4s var(--ease)}
.sport-card:hover img{transform:scale(1.06);opacity:.9}
.sport-card::after{content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(7,14,27,.1) 30%,rgba(7,14,27,.92))}
.sport-card .sbody{position:relative;z-index:2;padding:24px 22px}
.sport-card .sno{font-family:var(--f-mono);font-size:10px;letter-spacing:.22em;color:var(--ice-2)}
.sport-card h4{margin:10px 0 8px;font-size:17px}
.sport-card p{font-size:13px;line-height:1.7;color:var(--text-2)}
.sport-card .bind{margin-top:12px;font-size:12.5px;font-weight:700;color:var(--ice)}
@media (max-width:900px){.sport-grid{grid-template-columns:repeat(2,1fr)}}
@media (max-width:520px){.sport-grid{grid-template-columns:1fr}}

/* 运动数据条 */
.sport-data{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;
  background:var(--line);border:1px solid var(--line);margin-bottom:34px}
.sport-data div{background:var(--nav-950);padding:20px 22px}
.sport-data b{display:block;font-family:var(--f-latin);font-size:clamp(19px,2vw,26px);
  font-weight:900;color:var(--ice);letter-spacing:-.01em}
.sport-data span{display:block;font-size:11.5px;color:var(--text-3);margin-top:6px}
@media (max-width:700px){.sport-data{grid-template-columns:repeat(2,1fr)}}

/* ============================================================
   产品列表页
   ============================================================ */
.page-head{padding:calc(var(--hdr-h) + clamp(50px,7vw,86px)) 0 clamp(34px,4vw,52px);
  background:var(--nav-1000);border-bottom:1px solid var(--line);position:relative;overflow:hidden}
.page-head .hero-mark{opacity:.1;width:min(480px,44vw)}
.page-head-bg{position:absolute;inset:0;z-index:0}
.page-head-bg img{width:100%;height:100%;object-fit:cover;opacity:.3}
.page-head-bg video{width:100%;height:100%;object-fit:cover;opacity:.55}
.page-head-bg::after{content:"";position:absolute;inset:0;
  background:linear-gradient(96deg,var(--nav-1000) 6%,rgba(7,14,27,.86) 46%,rgba(7,14,27,.58))}
.page-head .wrap{position:relative;z-index:2}

/* 全出血氛围带 */
.band{position:relative;overflow:hidden;background:var(--nav-1000);
  padding:clamp(56px,7vw,96px) 0}
.band-bg{position:absolute;inset:0;z-index:0}
.band-bg img{width:100%;height:100%;object-fit:cover;opacity:.34}
.band-bg::after{content:"";position:absolute;inset:0;
  background:linear-gradient(92deg,rgba(7,14,27,.95) 10%,rgba(7,14,27,.62) 62%,rgba(7,14,27,.86))}
.band .wrap{position:relative;z-index:2}
.band h2{max-width:24ch;margin-bottom:16px}
.band .lead{max-width:52ch}
.crumb{font-family:var(--f-mono);font-size:11px;letter-spacing:.14em;color:var(--text-3);
  margin-bottom:20px;display:flex;gap:9px;flex-wrap:wrap}
.crumb a:hover{color:var(--ice-2)}
.filter-bar{
  position:sticky;top:60px;z-index:40;background:rgba(12,23,40,.9);
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
  border:1px solid var(--line);padding:16px clamp(16px,2vw,24px);
  display:flex;flex-wrap:wrap;gap:14px 28px;align-items:center;margin-bottom:clamp(28px,3.5vw,48px);
}
.filter-group{display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.filter-group>span{font-family:var(--f-mono);font-size:10.5px;letter-spacing:.18em;color:var(--text-3)}
.chip{
  font-size:12.5px;font-weight:700;color:var(--text-2);padding:7px 14px;
  border:1px solid var(--line-2);border-radius:2px;
  transition:background .26s var(--ease),color .26s var(--ease),border-color .26s var(--ease);
}
.chip:hover{border-color:var(--ice-2);color:var(--text)}
.chip[aria-pressed="true"]{background:var(--ice);color:var(--nav-1000);border-color:var(--ice)}
.filter-count{margin-left:auto;font-family:var(--f-mono);font-size:11px;color:var(--text-3)}
.group-title{display:flex;align-items:baseline;gap:16px;margin:clamp(34px,4vw,54px) 0 20px}
.group-title h3{white-space:nowrap}
.group-title .rule{flex:1;height:1px;background:var(--line)}
.group-title span{font-size:12px;color:var(--text-3);white-space:nowrap}
.empty{
  border:1px dashed var(--line-2);padding:56px 24px;text-align:center;
}
.empty img{width:56px;height:42px;object-fit:contain;margin:0 auto 18px;opacity:.34}
.empty p{font-size:14px;color:var(--text-3);margin-bottom:20px}

/* ============================================================
   产品详情页
   ============================================================ */
.pd-top{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,.92fr);
  gap:clamp(28px,4vw,64px);align-items:start}
.gallery{position:sticky;top:calc(60px + 24px)}
.gallery-main{border:1px solid var(--line);background:var(--nav-900);overflow:hidden;
  aspect-ratio:4/5;position:relative}
.gallery-main img{width:100%;height:100%;object-fit:cover}
.gallery-thumbs{display:grid;grid-template-columns:repeat(4,1fr);gap:10px;margin-top:10px}
.gallery-thumbs button{border:1px solid var(--line);background:var(--nav-900);overflow:hidden;
  aspect-ratio:1;padding:0;transition:border-color .26s var(--ease)}
.gallery-thumbs button img{width:100%;height:100%;object-fit:cover}
.gallery-thumbs button{position:relative}
.gallery-thumbs button img{opacity:.55;transition:opacity .26s var(--ease)}
.gallery-thumbs button[aria-pressed="true"]{border-color:transparent}
.gallery-thumbs button[aria-pressed="true"] img{opacity:1}
.gallery-thumbs button[aria-pressed="true"]::after{
  content:"";position:absolute;left:18%;right:18%;bottom:0;height:3px;
  background:linear-gradient(90deg,transparent,var(--ice),transparent);
}
.pd-info h1{font-size:clamp(28px,3.4vw,44px);margin-bottom:14px}
.pd-info .sub{font-size:16px;line-height:1.75;color:var(--text-2);margin-bottom:24px}
.pd-price{display:flex;align-items:baseline;gap:14px;margin:26px 0 22px;
  padding-top:22px;border-top:1px solid var(--line)}
.pd-price b{font-family:var(--f-latin);font-size:26px;font-weight:900;color:var(--text)}
.pd-price span{font-size:13px;color:var(--text-3)}
.pd-actions{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:24px}
.pd-note{font-size:12.5px;color:var(--text-3);display:flex;flex-wrap:wrap;gap:8px 20px;
  padding-top:20px;border-top:1px solid var(--line)}
.pd-note span{display:flex;align-items:center;gap:7px}
.pd-note i{width:5px;height:5px;border-radius:50%;background:var(--ice-2);flex:none}
.pd-block{padding:clamp(40px,5vw,72px) 0;border-top:1px solid var(--line)}
.pd-block h2{margin-bottom:26px}
.match-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--line);
  border:1px solid var(--line)}
.match-cell{background:var(--nav-850);padding:24px}
.match-cell .p{font-size:14px;font-weight:700;color:var(--text);margin-bottom:10px}
.match-cell .r{font-size:13.5px;color:var(--text-2);line-height:1.7}
.match-cell .r b{color:var(--ice)}
.formula{display:grid;grid-template-columns:repeat(2,1fr);gap:1px;background:var(--line);
  border:1px solid var(--line)}
.formula-cell{background:var(--nav-850);padding:24px}
.formula-cell .k{font-family:var(--f-mono);font-size:10.5px;letter-spacing:.18em;
  color:var(--ice-2);display:block;margin-bottom:12px}
.formula-cell p{font-size:13.5px;color:var(--text-2);line-height:1.8}
.ing-table{width:100%;border-collapse:collapse;font-size:13.5px}
.ing-table th{text-align:left;font-size:11px;letter-spacing:.16em;text-transform:uppercase;
  color:var(--ice-2);font-weight:700;padding:12px 14px;border-bottom:1px solid var(--line-2);
  white-space:nowrap}
.ing-table td{padding:13px 14px;border-bottom:1px solid var(--line);color:var(--text-2)}
.ing-table td:first-child{color:var(--text);font-weight:700;white-space:nowrap}
.ing-table td:nth-child(2){font-family:var(--f-mono);font-size:12px;color:var(--ice-3);
  white-space:nowrap;letter-spacing:.02em}
.ing-table tbody tr:hover td{background:rgba(168,191,218,.05)}
@media (max-width:900px){
  .pd-top{grid-template-columns:1fr}
  .gallery{position:static}
  .match-grid,.formula{grid-template-columns:1fr}
}

/* ============================================================
   使用流程
   ============================================================ */
.steps{position:relative;margin-top:20px}
.step{
  display:grid;grid-template-columns:96px minmax(0,1fr) 260px;gap:clamp(18px,2.4vw,38px);
  padding:clamp(24px,3vw,38px) 0;border-bottom:1px solid var(--line);align-items:center;
  transition:padding-left .34s var(--ease);
}
.step:hover{padding-left:12px}
.step-no{font-family:var(--f-latin);font-size:clamp(30px,3.4vw,46px);font-weight:900;
  color:var(--nav-700);line-height:1;transition:color .34s var(--ease)}
.step:hover .step-no{color:var(--ice)}
.step .when{font-family:var(--f-mono);font-size:10.5px;letter-spacing:.2em;color:var(--ice-2);
  display:block;margin-bottom:9px}
.step h4{margin-bottom:9px}
.step p{font-size:13.5px;color:var(--text-2);line-height:1.75}
.step-media{border:1px solid var(--line);background:var(--nav-900);overflow:hidden;aspect-ratio:4/3}
.step-media img{width:100%;height:100%;object-fit:cover;transition:transform 1.2s var(--ease)}
.step:hover .step-media img{transform:scale(1.05)}
.step-feel{display:inline-block;margin-top:12px;font-size:13px;font-weight:700;color:var(--ice)}
@media (max-width:900px){
  .step{grid-template-columns:56px minmax(0,1fr);gap:18px}
  .step-media{grid-column:1/-1;margin-top:16px}
}

/* ============================================================
   FAQ 折叠
   ============================================================ */
.faq-group{margin-bottom:clamp(30px,3.6vw,48px)}
.faq-group>h3{margin-bottom:16px;padding-bottom:14px;border-bottom:1px solid var(--line-2)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-q{
  width:100%;display:flex;align-items:center;gap:18px;text-align:left;
  padding:22px 4px;font-size:16px;font-weight:700;color:var(--text);
  transition:color .26s var(--ease),padding-left .26s var(--ease);
}
.faq-q:hover{color:var(--ice);padding-left:10px}
.faq-q .mk{
  flex:none;width:22px;height:22px;position:relative;margin-left:auto;
  border:1px solid var(--line-2);border-radius:50%;transition:transform .34s var(--ease);
}
.faq-q .mk::before,.faq-q .mk::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--ice-2);
  transform:translate(-50%,-50%);
}
.faq-q .mk::before{width:10px;height:1.5px}
.faq-q .mk::after{width:1.5px;height:10px;transition:opacity .3s var(--ease)}
.faq-q[aria-expanded="true"] .mk{transform:rotate(180deg)}
.faq-q[aria-expanded="true"] .mk::after{opacity:0}
.faq-a{max-height:0;overflow:hidden;transition:max-height .42s var(--ease)}
.faq-a-in{padding:0 46px 24px 4px;font-size:14px;line-height:1.85;color:var(--text-2)}

/* ============================================================
   联系页
   ============================================================ */
.intent-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:clamp(14px,1.8vw,20px)}
.intent{
  background:var(--nav-850);border:1px solid var(--line);padding:26px;border-left:3px solid var(--nav-700);
  transition:border-color .3s var(--ease),background .3s var(--ease);
}
.intent[aria-pressed="true"],.intent:hover{border-left-color:var(--ice);background:var(--nav-800)}
.intent .num{font-family:var(--f-mono);font-size:10.5px;letter-spacing:.2em;color:var(--ice-2)}
.intent h4{margin:12px 0 9px}
.intent p{font-size:13.5px;color:var(--text-2);line-height:1.75}
.intent .fields{margin-top:14px;font-size:12px;color:var(--text-3);line-height:1.7}
.contact-grid{display:grid;grid-template-columns:minmax(0,1.55fr) minmax(0,1fr);
  gap:clamp(24px,3vw,48px);align-items:start;margin-top:clamp(34px,4vw,54px)}
.form{background:var(--nav-850);border:1px solid var(--line);padding:clamp(24px,3vw,38px)}
.field{margin-bottom:20px}
.field label{display:block;font-size:12.5px;font-weight:700;color:var(--text-2);margin-bottom:9px}
.field label .req{color:var(--heat)}
.field input,.field select,.field textarea{
  width:100%;background:var(--nav-950);border:1px solid var(--line-2);border-radius:2px;
  color:var(--text);font:inherit;font-size:14px;padding:13px 15px;
  transition:border-color .26s var(--ease),box-shadow .26s var(--ease);
}
.field textarea{min-height:118px;resize:vertical;line-height:1.7}
.field input::placeholder,.field textarea::placeholder{color:var(--text-3)}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--ice-2);box-shadow:0 0 0 3px rgba(122,143,166,.16);
}
.field.err input,.field.err select,.field.err textarea{border-color:var(--heat)}
.field .msg{display:none;margin-top:8px;font-size:12px;color:#F0937A}
.field.err .msg{display:block}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.form-ok{
  display:none;background:var(--nav-800);border:1px solid rgba(146,158,174,.34);
  padding:34px;text-align:center;
}
.form-ok.on{display:block}
.form-ok img{width:46px;height:35px;object-fit:contain;margin:0 auto 18px}
.form-ok h3{margin-bottom:10px}
.form-ok p{font-size:14px;color:var(--text-2)}
.aside-panel{background:var(--nav-1000);border:1px solid var(--line);padding:clamp(24px,3vw,32px)}
.aside-panel h4{margin-bottom:18px}
.aside-list li{display:flex;gap:12px;padding:13px 0;border-bottom:1px solid var(--line);
  font-size:13.5px;color:var(--text-2)}
.aside-list li:last-child{border-bottom:0}
.aside-list b{display:block;color:var(--text);font-size:13.5px;font-weight:700}
.aside-list .k{font-family:var(--f-mono);font-size:10.5px;color:var(--ice-2);
  letter-spacing:.14em;min-width:74px;padding-top:3px}
@media (max-width:900px){
  .intent-grid,.contact-grid{grid-template-columns:1fr}
  .form-row{grid-template-columns:1fr}
}

/* ============================================================
   声明 / 套装 / 通用块
   ============================================================ */
.bundle-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:clamp(16px,2vw,24px)}
.bundle{
  background:var(--nav-850);border:1px solid var(--line);overflow:hidden;display:flex;
  flex-direction:column;transition:transform .34s var(--ease),border-color .34s var(--ease);
}
.bundle:hover{transform:translateY(-6px);border-color:var(--line-3)}
.bundle-shot{aspect-ratio:16/10;overflow:hidden;background:var(--nav-900)}
.bundle-shot img{width:100%;height:100%;object-fit:cover;transition:transform 1.3s var(--ease)}
.bundle:hover .bundle-shot img{transform:scale(1.06)}
.bundle-body{padding:24px;display:flex;flex-direction:column;flex:1}
.bundle-body .items{font-size:13px;color:var(--text-3);margin:12px 0 18px;line-height:1.8}
.bundle-body .foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:12px}
@media (max-width:900px){.bundle-grid{grid-template-columns:1fr}}

.declare{
  position:relative;overflow:hidden;text-align:center;
  padding:clamp(90px,11vw,170px) 0;background:var(--nav-1000);
}
.declare-bg{position:absolute;inset:0;z-index:0}
.declare-bg img{width:100%;height:100%;object-fit:cover;opacity:.62}
.declare::after{content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(7,14,27,.78),rgba(7,14,27,.18) 46%,rgba(7,14,27,.9))}
.declare .wrap{position:relative;z-index:2}
.declare h2{font-size:clamp(28px,4.4vw,54px);margin-bottom:22px}
.declare .en{font-family:var(--f-latin);font-size:clamp(12px,1.2vw,15px);font-weight:700;
  letter-spacing:.34em;text-transform:uppercase;color:var(--ice-2);margin-bottom:28px}
.declare-mark{width:min(196px,36vw);margin:0 auto 34px;opacity:1;
  filter:drop-shadow(0 12px 38px rgba(0,0,0,.5))}
.feel-row{display:flex;flex-wrap:wrap;gap:10px;justify-content:center;margin-top:38px}
.feel{
  font-size:13px;font-weight:700;color:var(--text-2);padding:9px 18px;
  border:1px solid var(--line-2);border-radius:999px;
  transition:background .28s var(--ease),color .28s var(--ease),border-color .28s var(--ease);
}
.feel:hover{background:var(--ice);color:var(--nav-1000);border-color:var(--ice)}

.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line);
  border:1px solid var(--line)}
.stat{background:var(--nav-850);padding:clamp(22px,2.6vw,32px)}
.stat b{display:block;font-family:var(--f-latin);font-size:clamp(22px,2.6vw,34px);font-weight:900;
  color:var(--ice);letter-spacing:-.02em;line-height:1.1}
.stat span{display:block;font-size:12.5px;color:var(--text-3);margin-top:9px;line-height:1.6}
@media (max-width:900px){.stat-grid{grid-template-columns:repeat(2,1fr)}}

.note{
  border-left:3px solid var(--ice-2);background:var(--nav-900);
  padding:20px 24px;font-size:14px;line-height:1.8;color:var(--text-2);
}
.note b{color:var(--text)}
.note.heat{border-left-color:var(--heat);background:var(--heat-dim)}

/* 图文内容块 */
.prose{max-width:70ch}
.prose p{font-size:15px;line-height:1.9;color:var(--text-2);margin-bottom:18px}
.prose h3{margin:34px 0 14px}
.prose ul{margin:0 0 18px;padding-left:0}
.prose ul li{position:relative;padding-left:22px;margin-bottom:10px;font-size:14.5px;
  line-height:1.8;color:var(--text-2)}
.prose ul li::before{content:"";position:absolute;left:0;top:12px;width:9px;height:1.5px;
  background:var(--ice-2)}

/* ============================================================
   页脚
   ============================================================ */
.ftr{background:var(--nav-1000);border-top:1px solid var(--line);padding:clamp(56px,7vw,86px) 0 0}
.ftr-top{display:grid;grid-template-columns:1.5fr repeat(3,1fr);gap:clamp(24px,3vw,48px);
  padding-bottom:clamp(40px,5vw,60px);border-bottom:1px solid var(--line)}
.ftr-brand .brand{font-size:24px;margin-bottom:16px}
.ftr-brand p{font-size:13px;line-height:1.8;color:var(--text-3);max-width:34ch;margin-bottom:20px}
.ftr-col h5{font-size:11px;font-weight:700;letter-spacing:.24em;text-transform:uppercase;
  color:var(--ice-2);margin:0 0 18px}
.ftr-col li{margin-bottom:11px}
.ftr-col a{font-size:13.5px;color:var(--text-2);transition:color .26s var(--ease)}
.ftr-col a:hover{color:var(--ice)}
.ftr-bottom{display:flex;flex-wrap:wrap;gap:14px 30px;align-items:center;
  padding:24px 0 34px;font-size:12px;color:var(--text-3)}
.ftr-bottom .sp{margin-left:auto}
.ftr-note{font-size:11.5px;line-height:1.85;color:var(--text-3);padding:0 0 30px;max-width:100ch}
@media (max-width:900px){.ftr-top{grid-template-columns:1fr 1fr}}
@media (max-width:560px){.ftr-top{grid-template-columns:1fr}}

/* ============================================================
   滚动显现
   ============================================================ */
.rv{opacity:0;transform:translateY(30px);
  transition:opacity .9s var(--ease),transform .9s var(--ease)}
.rv.in{opacity:1;transform:none}
.rv-d1{transition-delay:.12s}
.rv-d2{transition-delay:.24s}
.rv-d3{transition-delay:.36s}
.rv-d4{transition-delay:.48s}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .rv{opacity:1;transform:none;transition:none}
  .speedlines,.pulse path,.marquee-track{animation:none}
  .marquee-track{transform:none}
}

/* ============================================================
   响应式收束
   ============================================================ */
@media (max-width:900px){
  .g3,.g4{grid-template-columns:repeat(2,1fr)}
  .filter-bar{position:static}
}
@media (max-width:560px){
  .g2,.g3,.g4{grid-template-columns:1fr}
  body{font-size:15px}
  .hero-specs{display:grid;grid-template-columns:1fr 1fr;gap:16px}
  .btn{width:100%;justify-content:center}
  .btn-row{flex-direction:column}
  .pd-actions{flex-direction:column}
}

/* ============================================================
   质感增强层（2026-09-19 · 厚重感 / 高级质感 / 图像显现）
   仅追加覆盖，不改动上方既有规则
   ============================================================ */

/* —— 全站胶片颗粒（极轻，制造「材质」而非「平色」） —— */
body::after{
  content:"";position:fixed;inset:0;z-index:2000;pointer-events:none;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='240' height='240'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='.55'/%3E%3C/svg%3E");
  opacity:.05;mix-blend-mode:overlay;
}
@media (prefers-reduced-motion:reduce){body::after{display:none}}

/* —— 按钮：分量感 —— */
.btn-ice{
  background:linear-gradient(180deg,#C1D4EA 0%,var(--ice) 46%,#8FA9C6 100%);
  box-shadow:0 10px 26px -10px rgba(122,143,166,.5),inset 0 1px 0 rgba(255,255,255,.55);
}
.btn-ice:hover{
  background:linear-gradient(180deg,#D3E1F2 0%,#B8CCE4 50%,#9BB6D2 100%);
  transform:translateY(-2px);
  box-shadow:0 16px 34px -12px rgba(122,143,166,.6),inset 0 1px 0 rgba(255,255,255,.6);
}
.btn-ghost{background:rgba(27,46,69,.35);-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px)}
.btn-ghost:hover{transform:translateY(-2px);box-shadow:0 14px 30px -14px rgba(0,0,0,.6)}

/* —— 卡片表面：微妙渐变 + 顶部高光 + 深投影（厚重感核心） —— */
.card,.pcard,.bundle,.intent,.form,.aside-panel,.gallery-main,.split-media,.step-media,.match-cell,.formula-cell,.stat{
  background-image:linear-gradient(165deg,rgba(150,182,214,.07),rgba(150,182,214,0) 42%);
  box-shadow:inset 0 1px 0 rgba(190,216,240,.07),0 22px 48px -24px rgba(0,0,0,.55);
}
.card:hover,.pcard:hover,.bundle:hover{
  border-color:var(--line-3);
  box-shadow:inset 0 1px 0 rgba(190,216,240,.1),0 34px 64px -26px rgba(0,0,0,.65);
}

/* —— 产品卡：舞台聚光，让产品图成为视觉主体 —— */
.pcard-shot{
  background:
    radial-gradient(90% 70% at 50% 32%,rgba(122,143,166,.14),transparent 68%),
    linear-gradient(180deg,var(--nav-850),var(--nav-900));
}
.pcard-shot img{transform:scale(1.01)}
.pcard:hover .pcard-shot img{transform:scale(1.06)}

/* —— 运动场景卡：场景图真正显现 —— */
.sport-card{
  border-color:var(--line-2);
  box-shadow:inset 0 1px 0 rgba(190,216,240,.08),0 26px 54px -24px rgba(0,0,0,.6);
}
.sport-card img{opacity:.94}
.sport-card::after{
  background:linear-gradient(180deg,rgba(7,14,27,.06) 26%,rgba(7,14,27,.44) 62%,rgba(7,14,27,.9));
}
.sport-card:hover{border-color:rgba(168,191,218,.4)}
.sport-card:hover img{opacity:1;transform:scale(1.05)}

/* —— 首屏：背景人物显现 + 产品图装裱 —— */
.hero-bg img{opacity:.5}
.hero-vis .card-shot{
  border-color:var(--line-2);
  box-shadow:0 40px 90px -30px rgba(0,0,0,.7),inset 0 1px 0 rgba(190,216,240,.1);
}
.hero-vis::before{
  content:"";position:absolute;inset:8% -6% -4% 10%;z-index:-1;
  background:radial-gradient(60% 60% at 60% 40%,rgba(122,143,166,.16),transparent 70%);
}
.hero-badge{box-shadow:0 28px 64px rgba(0,0,0,.55),inset 0 1px 0 rgba(190,216,240,.12)}

/* —— 宣言区：背景纹理显现 —— */
.declare-bg img{opacity:.5}
.declare::after{background:radial-gradient(72% 62% at 50% 46%,rgba(7,14,27,.3),rgba(7,14,27,.9))}

/* —— 子页页头 / 氛围带：图像显现度同步提升 —— */
.page-head-bg img{opacity:.42}
.band-bg img{opacity:.46}

/* —— 导航滚动态加重 —— */
.hdr.scrolled{box-shadow:0 14px 34px -18px rgba(0,0,0,.7)}

/* —— 数据条 / 痛点格：表面高光 —— */
.sport-data div,.pain-cell{background-image:linear-gradient(165deg,rgba(150,182,214,.05),transparent 46%)}

/* ===== 品牌标识升级（官方注册稿） ===== */
.brand img.brand-word-img{width:auto;height:15px;object-fit:contain;transform:translateY(-.5px)}
.ftr-brand .brand img.brand-word-img{height:19px;transform:none}
.brand img[src*="mark-"]{width:auto;height:21px}
/* 正文内联注册字标（BÓCHE 文字一律以注册34字标图呈现） */
img.wm{display:inline-block;height:.92em;width:auto;vertical-align:-.18em;margin:0 .06em}


/* ================= 运动影像带（视频） ================= */
.sport-film{display:grid;grid-template-columns:repeat(2,1fr);gap:clamp(14px,1.6vw,20px);margin-top:clamp(22px,2.6vw,32px)}
.sport-film figure{position:relative;margin:0;overflow:hidden;border:1px solid var(--line);background:var(--nav-900)}
.sport-film video{display:block;width:100%;aspect-ratio:16/10;object-fit:cover;background:var(--nav-900)}
.sport-film figcaption{position:absolute;inset:auto 0 0 0;padding:clamp(16px,1.8vw,22px);
  background:linear-gradient(to top,rgba(7,14,27,.92),rgba(7,14,27,.42) 58%,rgba(7,14,27,0));
  display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:8px 16px}
.sport-film .fk{display:block;font-size:11px;letter-spacing:.2em;text-transform:uppercase;color:var(--ice-3);margin-bottom:6px}
.sport-film h4{margin:0;font-weight:400;font-size:clamp(17px,1.5vw,21px);letter-spacing:.02em}
.sport-film .fb{margin:0;font-size:13px;color:var(--text-2)}
@media (max-width:760px){.sport-film{grid-template-columns:1fr}}

/* ================= 开放式渐变：展示图去细线边框 =================
   所有展示图容器不再使用 1px 细线框，图像四缘以渐变溶入底色。 */
.hero-vis .card-shot,.split-media,.pcard,.sport-card,
.gallery-main,.gallery-thumbs button,.step-media,.bundle,
.sport-film figure{border:none}

.hero-vis .card-shot img,.split-media img,.pcard-shot img,
.gallery-main img,.step-media img,.bundle-shot img{
  -webkit-mask-image:linear-gradient(180deg,transparent,#000 10%,#000 90%,transparent),linear-gradient(90deg,transparent,#000 8%,#000 92%,transparent);
  -webkit-mask-composite:source-in;
  mask-image:linear-gradient(180deg,transparent,#000 10%,#000 90%,transparent),linear-gradient(90deg,transparent,#000 8%,#000 92%,transparent);
  mask-composite:intersect;
}
/* 运动卡：底部由 ::after 深色渐变托住文字，只收顶部与两侧 */
.sport-card{border:none}
.sport-card:hover{border:none}
.sport-card img{
  -webkit-mask-image:linear-gradient(180deg,transparent,#000 14%),linear-gradient(90deg,transparent,#000 8%,#000 92%,transparent);
  -webkit-mask-composite:source-in;
  mask-image:linear-gradient(180deg,transparent,#000 14%),linear-gradient(90deg,transparent,#000 8%,#000 92%,transparent);
  mask-composite:intersect;
}
/* 影像带：视频四缘轻收，底部由 caption 渐变接管 */
.sport-film video{
  -webkit-mask-image:linear-gradient(180deg,transparent,#000 8%),linear-gradient(90deg,transparent,#000 6%,#000 94%,transparent);
  -webkit-mask-composite:source-in;
  mask-image:linear-gradient(180deg,transparent,#000 8%),linear-gradient(90deg,transparent,#000 6%,#000 94%,transparent);
  mask-composite:intersect;
}
/* hover 态不再描边，改以位移/缩放表达 */
.pcard:hover,.bundle:hover{border-color:transparent}

/* ============ 13. 全幅运动图带（无边框，上下渐变溶入页面底色） ============ */
.sport-band{position:relative;width:100%;line-height:0}
.sport-band img{width:100%;height:clamp(340px,46vw,620px);object-fit:cover;object-position:center;display:block;filter:saturate(.8) brightness(.9)}
.sport-band::before,.sport-band::after{content:'';position:absolute;left:0;right:0;height:140px;pointer-events:none;z-index:1}
.sport-band::before{top:0;background:linear-gradient(180deg,var(--nav-950),rgba(12,23,40,0))}
.sport-band::after{bottom:0;background:linear-gradient(0deg,var(--nav-950),rgba(12,23,40,0))}

/* ============ 14. 首屏战绳视频 Hero + 动能字幕带 ============ */
.hero--film{position:relative;overflow:hidden}
.hero-video{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;z-index:0;filter:saturate(.85) brightness(.85)}
.hero-shade{position:absolute;inset:0;z-index:1;background:linear-gradient(180deg,rgba(7,14,27,.74),rgba(7,14,27,.42) 46%,var(--nav-950) 98%)}
.hero--film .hero-slats,.hero--film .hero-glow{z-index:2}
.hero--film .hero-core{position:relative;z-index:3}
.hero--film .hero-yue{font-size:clamp(64px,11vw,150px);letter-spacing:.04em}
.hero--film .hero-slogan{letter-spacing:.42em;color:var(--text-2)}
.hero--film .hero-prop{color:var(--text-2)}
.mega{overflow:hidden;white-space:nowrap;border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:22px 0;background:var(--nav-1000)}
.mega-track{display:inline-block;animation:mega-move 26s linear infinite}
.mega-track span{display:inline-block;margin-right:64px;font-size:clamp(46px,7vw,104px);line-height:1.08;letter-spacing:.02em;vertical-align:middle}
.mega .fill{color:var(--text);font-weight:600}
.mega .hollow{color:transparent;-webkit-text-stroke:1.5px rgba(148,157,169,.5)}
@keyframes mega-move{from{transform:translateX(0)}to{transform:translateX(-50%)}}
@media (prefers-reduced-motion:reduce){.mega-track{animation:none}}

/* ============ 15. 运动场景全幅化：4 列满宽场景卡 + 双影片并排（文字压图，无边框） ============ */
.sec.sport-fb{overflow-x:clip}
.sec.sport-fb .sport-grid{width:100vw;position:relative;left:calc(50% - 50vw);
  grid-template-columns:repeat(4,1fr);gap:2px;margin:36px 0 0}
.sec.sport-fb .sport-card{position:relative;border:none;background:var(--nav-900)}
.sec.sport-fb .sport-card img{width:100%;height:clamp(300px,26vw,430px);object-fit:cover;
  filter:saturate(.85) brightness(.92);transition:transform 1.2s var(--ease)}
.sec.sport-fb .sport-card:hover img{transform:scale(1.05)}
.sec.sport-fb .sport-card .sbody{position:absolute;left:0;right:0;bottom:0;
  padding:80px 20px 16px;background:linear-gradient(180deg,rgba(7,14,27,0),rgba(7,14,27,.92) 72%)}
.sec.sport-fb .sport-card .sbody p{margin-bottom:8px}
.sec.sport-fb .sport-films{width:100vw;position:relative;left:calc(50% - 50vw);
  display:grid;grid-template-columns:1fr 1fr;gap:2px;margin-top:2px}
.sec.sport-fb .sport-films figure{position:relative;margin:0;overflow:hidden}
.sec.sport-fb .sport-films video{width:100%;height:clamp(280px,30vw,460px);object-fit:cover;
  display:block;filter:saturate(.9)}
.sec.sport-fb .sport-films figcaption{position:absolute;left:0;right:0;bottom:0;z-index:2;
  display:flex;justify-content:space-between;align-items:flex-end;gap:16px;
  padding:70px 24px 18px;background:linear-gradient(180deg,rgba(7,14,27,0),rgba(7,14,27,.9) 75%)}
.sec.sport-fb .sport-films .fk{display:block;font-family:var(--f-mono);font-size:10px;
  letter-spacing:.2em;color:var(--ice-2);margin-bottom:6px}
.sec.sport-fb .sport-films h4{margin:0;font-size:20px}
.sec.sport-fb .sport-films .fb{margin:0;font-size:13px;color:var(--text-2)}
@media (max-width:900px){
  .sec.sport-fb .sport-grid{grid-template-columns:repeat(2,1fr)}
  .sec.sport-fb .sport-films{grid-template-columns:1fr}
}
@media (prefers-reduced-motion: reduce){.sec.sport-fb .sport-card img{transition:none}}

/* ============ 16. 首页分子动画带（全幅无边框，上下渐变溶入页面，原视频色泽亮度不变） ============ */
.molecule-band{position:relative;width:100%;line-height:0;overflow:hidden}
.molecule-band video{width:100%;height:clamp(320px,40vw,560px);object-fit:cover;display:block}
.molecule-band::before,.molecule-band::after{content:'';position:absolute;left:0;right:0;height:130px;pointer-events:none;z-index:1}
.molecule-band::before{top:0;background:linear-gradient(180deg,var(--nav-950),rgba(12,23,40,0))}
.molecule-band::after{bottom:0;background:linear-gradient(0deg,var(--nav-950),rgba(12,23,40,0))}
@media (prefers-reduced-motion:reduce){.molecule-band video{animation:none}}