/* ============ 设计令牌 ============ */
:root{
  --bg:#0a0d12; --surface:#121821; --surface-2:#1a2230; --line:#23303f;
  --text:#e8eef7; --muted:#8d9cb0; --dim:#5f6e82;
  --accent:#1769ff; --accent-soft:#3d86ff; --gold:#35c46b;
  --radius:14px; --radius-sm:8px; --wrap:1240px; --header-h:68px;
  --ff:"Roboto","Helvetica Neue",Arial,"PingFang SC","Microsoft YaHei",sans-serif;
  --ease:cubic-bezier(.22,.61,.36,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--text);font-family:var(--ff);
  font-size:16px;line-height:1.65;-webkit-font-smoothing:antialiased}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
h1,h2,h3,h4{margin:0 0 .5em;line-height:1.2;font-weight:600;letter-spacing:-.01em}
p{margin:0 0 1em}
ul,ol{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--gold);outline-offset:3px;border-radius:4px}
.wrap{width:100%;max-width:var(--wrap);margin-inline:auto;padding-inline:clamp(16px,4vw,40px)}
.skip{position:absolute;left:-9999px;top:0;background:var(--gold);color:#000;padding:10px 16px;z-index:999}
.skip:focus{left:8px;top:8px}
.ic{width:1.15em;height:1.15em;flex:0 0 auto}

/* ============ 按钮 ============ */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:.5em;
  padding:.85em 1.7em;border-radius:999px;font-size:.95rem;font-weight:600;
  letter-spacing:.02em;transition:transform .18s var(--ease),background .18s,border-color .18s,color .18s;
  border:1px solid transparent;white-space:nowrap}
.btn:hover{transform:translateY(-2px)}
.btn--primary{background:var(--accent);color:#fff}
.btn--primary:hover{background:var(--accent-soft)}
.btn--solid{background:var(--bg);color:var(--text)}
.btn--ghost{border-color:rgba(255,255,255,.38);color:#fff}
.btn--ghost:hover{border-color:var(--gold);color:var(--gold)}
.btn--outline{border-color:var(--line);color:var(--text)}
.btn--outline:hover{border-color:var(--gold);color:var(--gold)}
.btn--sm{padding:.6em 1.15em;font-size:.85rem}

/* ============ 页头 ============ */
.site-header{position:sticky;top:0;z-index:60;background:rgba(11,11,12,.82);
  backdrop-filter:blur(14px);border-bottom:1px solid var(--line)}
.header-inner{display:flex;align-items:center;gap:clamp(12px,2vw,32px);min-height:var(--header-h)}
.brand{display:flex;align-items:baseline;gap:.5em;flex:0 0 auto}
.brand-mark{font-weight:700;font-size:1.22rem;letter-spacing:.16em;color:var(--gold)}
.brand-sub{font-size:.72rem;letter-spacing:.24em;color:var(--dim);text-transform:uppercase}
.nav{display:flex;align-items:center;gap:clamp(10px,1.6vw,26px);margin-left:auto}
.nav-list{display:flex;align-items:center;gap:clamp(10px,1.5vw,24px)}
.nav-item{position:relative}
.nav-item>a{display:inline-block;padding:.55em 0;font-size:.9rem;letter-spacing:.04em;
  color:#cfcabf;transition:color .18s}
.nav-item>a:hover,.nav-item.is-active>a{color:var(--gold)}
.nav-item.is-active>a::after{content:"";display:block;height:2px;background:var(--gold);margin-top:2px}
.nav-sub{position:absolute;top:100%;left:50%;transform:translateX(-50%) translateY(6px);
  min-width:250px;background:var(--surface-2);border:1px solid var(--line);
  border-radius:var(--radius-sm);padding:.5em 0;opacity:0;visibility:hidden;
  transition:.18s var(--ease);box-shadow:0 18px 40px rgba(0,0,0,.55)}
.nav-item.has-sub:hover .nav-sub,.nav-item.has-sub:focus-within .nav-sub{opacity:1;visibility:visible;transform:translateX(-50%) translateY(0)}
.nav-sub a{display:block;padding:.62em 1.15em;font-size:.86rem;color:#cfcabf}
.nav-sub a:hover{background:rgba(210,174,109,.1);color:var(--gold)}
.nav-toggle-sub{display:none}
.chev{display:inline-block;width:.42em;height:.42em;margin-left:.45em;vertical-align:middle;
  border-right:1.5px solid currentColor;border-bottom:1.5px solid currentColor;
  transform:rotate(45deg) translateY(-1px)}

/* 语言切换 */
.lang-switch{position:relative;flex:0 0 auto}
.lang-current{display:flex;align-items:center;font-size:.82rem;font-weight:600;
  letter-spacing:.1em;color:#cfcabf;padding:.5em .7em;border:1px solid var(--line);border-radius:999px}
.lang-list{position:absolute;top:calc(100% + 8px);right:0;min-width:96px;background:var(--surface-2);
  border:1px solid var(--line);border-radius:var(--radius-sm);padding:.35em 0;
  opacity:0;visibility:hidden;transform:translateY(6px);transition:.18s var(--ease);
  box-shadow:0 18px 40px rgba(0,0,0,.55)}
.lang-switch[aria-expanded="true"] .lang-list,.lang-switch:hover .lang-list{opacity:1;visibility:visible;transform:translateY(0)}
.lang-list li a{display:block;padding:.45em 1em;font-size:.82rem;letter-spacing:.08em}
.lang-list li a:hover,.lang-list li a.is-active{color:var(--gold);background:rgba(210,174,109,.1)}
.header-cta{flex:0 0 auto;padding:.62em 1.4em;border-radius:999px;background:var(--accent);color:#fff;
  font-size:.85rem;font-weight:600;letter-spacing:.03em;transition:background .18s}
.header-cta:hover{background:var(--accent-soft)}
.nav-burger{display:none;width:42px;height:42px;margin-left:auto;position:relative}
.nav-burger span{display:block;height:2px;background:var(--text);margin:5px 9px;transition:.22s var(--ease)}
body.nav-open .nav-burger span:nth-child(1){transform:translateY(7px) rotate(45deg)}
body.nav-open .nav-burger span:nth-child(2){opacity:0}
body.nav-open .nav-burger span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* ============ 主视觉 ============ */
.hero{position:relative;display:flex;align-items:center;overflow:hidden;
  padding-block:clamp(64px,9vw,130px);border-bottom:1px solid var(--line)}
.hero--full{min-height:calc(100svh - var(--header-h))}
.hero--large{min-height:min(72vh,660px)}
.hero--medium{min-height:clamp(280px,38vh,420px);padding-block:clamp(48px,6vw,84px)}
.hero-bg{position:absolute;inset:0;background:var(--hero-img) center/cover no-repeat;
  opacity:.34;filter:grayscale(.25) contrast(1.05)}
.hero-bg::after{content:"";position:absolute;inset:0;
  background:radial-gradient(120% 90% at 50% 0%,rgba(0,0,0,.15),rgba(11,11,12,.92) 72%)}
.hero--dark{background:linear-gradient(180deg,#101012,#0b0b0c)}
.hero--accent{background:linear-gradient(140deg,#2a0b0a,#a81815 130%)}
.hero--gold{background:linear-gradient(140deg,#1a1408,#3a2b12 80%)}
.hero-inner{position:relative;z-index:2;width:100%}
.hero-eyebrow{font-size:.76rem;letter-spacing:.28em;text-transform:uppercase;
  color:var(--gold);margin-bottom:1.1em}
.hero-title{font-size:clamp(1.9rem,5.2vw,4rem);font-weight:700;letter-spacing:-.02em;
  max-width:22ch;margin-bottom:.42em}
.hero-sub{font-size:clamp(1rem,1.6vw,1.18rem);color:#c8c2b7;max-width:56ch;margin-bottom:1.6em}
.hero-actions{display:flex;flex-wrap:wrap;gap:.8em}
.hero--align-center{text-align:center}
.hero--align-center .hero-title,.hero--align-center .hero-sub{margin-inline:auto}
.hero--align-center .hero-actions{justify-content:center}
.hero--align-right{text-align:right}
.hero--align-right .hero-title,.hero--align-right .hero-sub{margin-left:auto}
.hero--align-right .hero-actions{justify-content:flex-end}

/* ============ 内容区块 ============ */
.section{padding-block:clamp(52px,7vw,104px)}
.section+ .section{border-top:1px solid rgba(42,42,46,.6)}
.section-head{margin-bottom:clamp(28px,3.4vw,52px);max-width:70ch}
.section-head.is-center{text-align:center;margin-inline:auto}
.section-title{font-size:clamp(1.45rem,2.6vw,2.3rem);letter-spacing:-.015em}
.section-sub{color:var(--muted);font-size:1rem;margin:.55em 0 0}
.prose{color:#c8c2b7;max-width:72ch}
.prose p:last-child{margin-bottom:0}
.prose--narrow{max-width:56ch}
.prose--wide{max-width:88ch}

/* 网格 */
.grid{display:grid;gap:clamp(16px,2vw,28px)}
.grid--2{grid-template-columns:repeat(2,1fr)}
.grid--3{grid-template-columns:repeat(3,1fr)}
.grid--4{grid-template-columns:repeat(4,1fr)}

/* 特性 */
.feat{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  padding:clamp(20px,2.4vw,30px);transition:border-color .2s,transform .2s var(--ease)}
.feat:hover{border-color:rgba(210,174,109,.42);transform:translateY(-3px)}
.feat-ic{display:inline-flex;align-items:center;justify-content:center;width:46px;height:46px;
  border-radius:12px;background:rgba(210,174,109,.12);color:var(--gold);margin-bottom:1em}
.feat-ic .ic{width:22px;height:22px}
.feat h3{font-size:1.05rem;margin-bottom:.4em}
.feat p{color:var(--muted);font-size:.92rem;margin:0}

/* 产品卡 */
.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  overflow:hidden;display:flex;flex-direction:column;transition:border-color .2s,transform .2s var(--ease)}
.card:hover{border-color:rgba(210,174,109,.42);transform:translateY(-4px)}
.card[data-status="draft"]{opacity:.72}
.card-media{display:block;aspect-ratio:4/3;background:var(--surface-2);overflow:hidden}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .5s var(--ease)}
.card:hover .card-media img{transform:scale(1.05)}
.card-body{padding:clamp(16px,1.8vw,24px);display:flex;flex-direction:column;gap:.4em;flex:1}
.card-model{font-size:.72rem;letter-spacing:.2em;color:var(--gold);text-transform:uppercase;margin:0}
.card-title{font-size:1.1rem;margin:0}
.card-desc{color:var(--muted);font-size:.9rem;margin:0;flex:1}
.card-link{font-size:.85rem;color:var(--gold);margin-top:.5em}

/* 图文两栏 */
.split{display:grid;grid-template-columns:1fr 1fr;gap:clamp(24px,4vw,64px);align-items:center}
.split--right .split-media{order:2}
.split-media img,.split-media .ph{border-radius:var(--radius);width:100%}
.split-body .btn{margin-top:.8em}

/* 参数表 */
.spec-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:var(--radius)}
.spec-table{width:100%;border-collapse:collapse;min-width:420px}
.spec-table th,.spec-table td{padding:.9em 1.15em;text-align:left;font-size:.92rem;
  border-bottom:1px solid var(--line);vertical-align:top}
.spec-table tr:last-child th,.spec-table tr:last-child td{border-bottom:0}
.spec-table th{width:38%;color:var(--muted);font-weight:500;background:rgba(255,255,255,.02)}
.spec-table tr:hover td,.spec-table tr:hover th{background:rgba(210,174,109,.05)}

/* 画廊 */
.g-item{margin:0;border-radius:var(--radius);overflow:hidden;background:var(--surface)}
.g-item img{aspect-ratio:1;object-fit:cover;width:100%;transition:transform .5s var(--ease)}
.g-item:hover img{transform:scale(1.04)}
.g-item figcaption{padding:.7em 1em;font-size:.82rem;color:var(--muted)}

/* 下载列表 */
.dl-list{display:flex;flex-direction:column;gap:1px;background:var(--line);
  border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}
.dl-item{display:flex;align-items:center;gap:1em;padding:1.05em 1.25em;background:var(--surface)}
.dl-item:hover{background:var(--surface-2)}
.dl-ic{width:36px;height:36px;display:inline-flex;align-items:center;justify-content:center;
  color:var(--gold);flex:0 0 auto}
.dl-ic .ic{display:none}
.dl-ic svg{width:20px;height:20px}
.dl-main{flex:1;min-width:0}
.dl-name{margin:0;font-size:.98rem;font-weight:500}
.dl-meta{margin:.2em 0 0;font-size:.8rem;color:var(--dim);letter-spacing:.03em}
.dl-pending{font-size:.78rem;color:var(--dim);border:1px dashed var(--line);
  padding:.4em .8em;border-radius:999px}

/* 问答 */
.faq-list{display:flex;flex-direction:column;gap:.6em;max-width:900px}
.faq-item{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-sm);overflow:hidden}
.faq-item[open]{border-color:rgba(210,174,109,.42)}
.faq-item summary{display:flex;align-items:center;justify-content:space-between;gap:1em;
  padding:1.05em 1.25em;cursor:pointer;font-weight:500;list-style:none}
.faq-item summary::-webkit-details-marker{display:none}
.faq-sign{position:relative;width:14px;height:14px;flex:0 0 auto}
.faq-sign::before,.faq-sign::after{content:"";position:absolute;background:var(--gold);
  transition:transform .22s var(--ease)}
.faq-sign::before{inset:6px 0 auto;height:2px}
.faq-sign::after{inset:0 6px auto;width:2px;height:14px}
.faq-item[open] .faq-sign::after{transform:scaleY(0)}
.faq-body{padding:0 1.25em 1.25em;color:var(--muted);font-size:.93rem}

/* 转化条 */
.cta{padding-block:clamp(40px,5vw,72px);border-block:1px solid var(--line)}
.cta--accent{background:linear-gradient(120deg,#2a0b0a,#7e1210)}
.cta--gold{background:linear-gradient(120deg,#191307,#3a2b12)}
.cta--dark{background:var(--surface)}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:clamp(20px,4vw,56px);flex-wrap:wrap}
.cta-inner h2{font-size:clamp(1.25rem,2.2vw,1.85rem);margin-bottom:.25em}
.cta-inner p{color:rgba(255,255,255,.78);margin:0;max-width:60ch}

/* 表单 */
.inquiry{max-width:860px}
.form{margin-top:1.6em}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:1em}
.field{display:flex;flex-direction:column;gap:.4em}
.field--full{grid-column:1/-1;margin-top:1em}
.field>span{font-size:.82rem;letter-spacing:.06em;color:var(--muted)}
.field input,.field textarea{width:100%;padding:.85em 1em;background:var(--surface);
  border:1px solid var(--line);border-radius:var(--radius-sm);color:var(--text);
  font:inherit;font-size:.95rem;transition:border-color .18s,background .18s}
.field input:focus,.field textarea:focus{outline:0;border-color:var(--gold);background:var(--surface-2)}
.field textarea{resize:vertical;min-height:120px}
.field input:invalid:not(:placeholder-shown){border-color:var(--accent-soft)}
.hp{position:absolute;left:-9999px;width:1px;height:1px;opacity:0}
.form-foot{display:flex;align-items:center;gap:1em;margin-top:1.4em;flex-wrap:wrap}
.form-note{font-size:.82rem;color:var(--gold);margin:0}
.form-note.is-error{color:var(--accent-soft)}
.form-note.is-ok{color:#6fbf73}

/* 视频 */
.video-wrap{position:relative;aspect-ratio:16/9;border-radius:var(--radius);overflow:hidden;background:var(--surface)}
.video-facade{position:absolute;inset:0;width:100%;height:100%;display:grid;place-items:center}
.video-facade img{width:100%;height:100%;object-fit:cover}
.video-play{width:66px;height:66px;border-radius:50%;background:rgba(168,24,21,.92);
  position:relative;transition:transform .2s var(--ease)}
.video-facade:hover .video-play{transform:scale(1.08)}
.video-play::after{content:"";position:absolute;left:52%;top:50%;transform:translate(-50%,-50%);
  border-style:solid;border-width:11px 0 11px 18px;border-color:transparent transparent transparent #fff}
.video-wrap iframe{position:absolute;inset:0;width:100%;height:100%;border:0}
.video-cap{margin-top:.9em;font-size:.86rem;color:var(--muted)}

/* 认证墙 */
.logo-wall{display:grid;grid-template-columns:repeat(auto-fit,minmax(130px,1fr));
  gap:clamp(14px,2vw,26px);align-items:center}
.logo-item{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-sm);
  padding:1.2em;text-align:center;color:var(--muted);font-size:.85rem}
.logo-item img{margin-inline:auto;max-height:56px;object-fit:contain}

/* 联系方式 */
.contact-block{display:grid;gap:.9em}
.contact-block li{display:flex;align-items:flex-start;gap:.8em;color:#c8c2b7;font-size:.95rem}
.contact-block .ic{color:var(--gold);margin-top:.2em}
.contact-block a:hover{color:var(--gold)}

/* 产品详情 */
.product-layout{display:grid;grid-template-columns:1.05fr .95fr;gap:clamp(24px,4vw,60px);align-items:start}
.product-hero{border-radius:var(--radius);width:100%;background:var(--surface)}
.product-thumbs{display:grid;grid-template-columns:repeat(6,1fr);gap:.5em;margin-top:.6em}
.product-thumbs img{border-radius:var(--radius-sm);aspect-ratio:1;object-fit:cover;
  border:1px solid var(--line);transition:border-color .18s}
.product-thumbs a:hover img{border-color:var(--gold)}
.product-feats{display:grid;gap:1em;margin-top:1.4em}
.product-feats li{display:flex;gap:.85em;align-items:flex-start}
.product-feats .feat-ic{width:38px;height:38px;margin:0}
.product-feats strong{display:block;font-size:.95rem}
.product-feats p{margin:.15em 0 0;color:var(--muted);font-size:.88rem}
.buy-row{display:flex;gap:.6em;flex-wrap:wrap;margin-top:1.4em}

/* ============ 页脚 ============ */
.site-footer{background:#08080a;border-top:1px solid var(--line);padding-block:clamp(40px,5vw,72px) 24px}
.footer-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:clamp(24px,3vw,48px)}
.f-col h3{font-size:.78rem;letter-spacing:.2em;text-transform:uppercase;color:var(--gold);margin-bottom:1em}
.f-col ul{display:grid;gap:.6em}
.f-col a,.f-col span{color:var(--muted);font-size:.9rem}
.f-col a:hover{color:var(--gold)}
.contact-list li{display:flex;gap:.6em;align-items:flex-start}
.contact-list .ic{color:var(--gold);margin-top:.25em;width:1em;height:1em}
.f-social{display:inline-block;margin-top:1em;font-size:.85rem;color:var(--gold);
  border:1px solid var(--line);padding:.45em 1em;border-radius:999px}
.f-social:hover{border-color:var(--gold)}
.footer-base{margin-top:clamp(32px,4vw,56px);padding-top:1.4em;border-top:1px solid var(--line)}
.footer-base p{margin:0;font-size:.8rem;color:var(--dim)}

/* ============ 后台占位（仅预览构建） ============ */
.ph{border:1px dashed rgba(210,174,109,.42);border-radius:var(--radius-sm);
  padding:1.1em;color:rgba(210,174,109,.75);font-size:.82rem;font-family:ui-monospace,Consolas,monospace;
  background:rgba(210,174,109,.05);text-align:center;word-break:break-all}
.ph::before{content:"［";opacity:.5}.ph::after{content:"］";opacity:.5}
.ph--media{aspect-ratio:4/3;display:grid;place-items:center;margin-bottom:.6em}
.ph--thumb{aspect-ratio:4/3;display:grid;place-items:center;font-size:.78rem}
.ph--logo{aspect-ratio:2/1;display:grid;place-items:center}
body:not([data-preview]) .ph{display:none}

/* ============ 响应式 ============ */
@media (max-width:1080px){
  .grid--4{grid-template-columns:repeat(2,1fr)}
  .product-layout{grid-template-columns:1fr}
  .product-thumbs{grid-template-columns:repeat(5,1fr)}
}
@media (max-width:880px){
  :root{--header-h:60px}
  .nav-burger{display:block}
  .nav{position:fixed;inset:var(--header-h) 0 auto;margin:0;flex-direction:column;
    align-items:stretch;gap:0;background:var(--bg);border-bottom:1px solid var(--line);
    padding:1em clamp(16px,4vw,40px) 1.6em;max-height:calc(100svh - var(--header-h));
    overflow-y:auto;transform:translateY(-12px);opacity:0;visibility:hidden;
    transition:.22s var(--ease)}
  body.nav-open .nav{transform:translateY(0);opacity:1;visibility:visible}
  .nav-list{flex-direction:column;align-items:stretch;gap:0}
  .nav-item{border-bottom:1px solid var(--line)}
  .nav-item>a{padding:1em 0;font-size:1rem}
  .nav-sub{position:static;transform:none;opacity:1;visibility:visible;box-shadow:none;
    background:transparent;border:0;border-radius:0;min-width:0;padding:0 0 .6em 1em;display:none}
  .nav-item.is-open .nav-sub{display:block}
  .nav-toggle-sub{display:inline-flex;align-items:center;justify-content:center;
    position:absolute;right:0;top:.55em;width:36px;height:36px}
  .nav-toggle-sub .chev{transition:transform .2s}
  .nav-item.is-open .nav-toggle-sub .chev{transform:rotate(225deg)}
  .nav-item.has-sub>a{pointer-events:none}
  .lang-switch{margin-top:1em;align-self:flex-start}
  .lang-list{position:static;opacity:0;visibility:hidden;transform:none;display:none;
    box-shadow:none;border:0;background:transparent;padding:0;margin-top:.5em}
  .lang-switch[aria-expanded="true"] .lang-list{display:block;opacity:1;visibility:visible}
  .header-cta{display:none}
  .grid--2,.grid--3{grid-template-columns:repeat(2,1fr)}
  .split{grid-template-columns:1fr}
  .split--right .split-media{order:0}
  .form-grid{grid-template-columns:1fr}
  .cta-inner{flex-direction:column;align-items:flex-start}
  .hero--full{min-height:auto}
}
@media (max-width:600px){
  .grid--2,.grid--3,.grid--4{grid-template-columns:1fr}
  .hero-title{font-size:clamp(1.65rem,8vw,2.3rem)}
  .hero-actions .btn{flex:1 1 auto;justify-content:center}
  .product-thumbs{grid-template-columns:repeat(4,1fr)}
  .spec-table th{width:44%}
  .dl-item{flex-wrap:wrap}
  .dl-item .btn{width:100%;justify-content:center}
  .section{padding-block:clamp(38px,9vw,58px)}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.01ms!important;transition-duration:.01ms!important;
    scroll-behavior:auto!important}
}

/* ============ 交互补充 ============ */
.site-header.is-scrolled{background:rgba(8,8,10,.94);box-shadow:0 8px 30px rgba(0,0,0,.45)}
.lightbox{position:fixed;inset:0;z-index:200;background:rgba(0,0,0,.92);
  display:grid;place-items:center;padding:clamp(16px,4vw,60px)}
.lightbox img{max-width:100%;max-height:100%;border-radius:var(--radius)}
.lightbox-close{position:absolute;top:18px;right:22px;font-size:2rem;line-height:1;
  color:#fff;width:48px;height:48px;border-radius:50%;background:rgba(255,255,255,.08)}
.lightbox-close:hover{background:var(--accent)}
.reveal{opacity:0;transform:translateY(14px);transition:opacity .5s var(--ease),transform .5s var(--ease)}
.reveal.in{opacity:1;transform:none}

/* ============ 主页精修（手机优先） ============ */
/* 画廊在手机上保持两列，避免 6 张图单列过长 */
@media (max-width:600px){
  .sec-gallery .grid{grid-template-columns:repeat(2,1fr);gap:10px}
  .sec-gallery .g-item figcaption{font-size:.72rem;padding:.5em .6em}
  .hero-sub{font-size:.95rem}
  .hero-eyebrow{font-size:.68rem;letter-spacing:.2em}
  .section-head{margin-bottom:24px}
  .card-body{padding:14px}
  .dl-item{padding:.9em 1em}
}
/* 宽幅产品图裁成 4:3 时保住主体 */
.card-media img{object-position:center 45%}
/* 主视觉图片曝光更均衡 */
.hero--dark .hero-bg{opacity:.42}
.hero--dark .hero-bg::after{
  background:linear-gradient(90deg,rgba(11,11,12,.94) 0%,rgba(11,11,12,.62) 46%,rgba(11,11,12,.18) 100%)}
@media (max-width:880px){
  .hero--dark .hero-bg::after{
    background:linear-gradient(180deg,rgba(11,11,12,.55) 0%,rgba(11,11,12,.86) 60%,rgba(11,11,12,.95) 100%)}
}
/* 画廊横图改成 4:3，减少裁切 */
.sec-gallery .g-item img{aspect-ratio:4/3}


/* ============ COOLSCHMAX 主题补充 ============ */
.brand-logo{height:26px;width:auto;display:block;filter:brightness(0) invert(1)}
@media (max-width:600px){ .brand-logo{height:22px} }
.hero--dark{background:linear-gradient(180deg,#0e131b,#0a0d12)}
.hero--accent{background:linear-gradient(140deg,#06182f,#1769ff 140%)}
.hero--gold{background:linear-gradient(140deg,#06210f,#135a2f 90%)}
.hero--dark .hero-bg{opacity:.5}
.hero--dark .hero-bg::after{
  background:linear-gradient(90deg,rgba(10,13,18,.96) 0%,rgba(10,13,18,.72) 48%,rgba(10,13,18,.3) 100%)}
.feat-ic{background:rgba(53,196,107,.14);color:var(--gold)}
.btn--primary{background:var(--accent)}
.btn--primary:hover{background:var(--accent-soft)}
.header-cta{background:var(--accent)}
.header-cta:hover{background:var(--accent-soft)}
.cta--accent{background:linear-gradient(120deg,#06182f,#1769ff)}
.cta--gold{background:linear-gradient(120deg,#06210f,#135a2f)}
.section-title{letter-spacing:-.02em}
.card-model{color:var(--gold)}

/* ============ 售后服务表单 ============ */
.form--service .form-grid{grid-template-columns:repeat(2,1fr)}
.form--service select{width:100%;padding:.85em 1em;background:var(--surface);
  border:1px solid var(--line);border-radius:var(--radius-sm);color:var(--text);font:inherit;font-size:.95rem}
.form--service select:focus{outline:0;border-color:var(--gold);background:var(--surface-2)}
.sec-aftersales{margin-top:clamp(32px,5vw,64px)}
.sec-aftersales .inquiry{border-top:1px solid var(--line);padding-top:clamp(28px,4vw,48px)}
@media (max-width:600px){ .form--service .form-grid{grid-template-columns:1fr} }