/* ============ OLIMP APPLIANCES — DESIGN SYSTEM ============ */
:root{
  --bg:#FAF7F2;          /* 米白底 */
  --surface:#FFFFFF;
  --ink:#211D17;         /* 沉稳墨色 */
  --ink-soft:#4A443B;
  --muted:#877E70;
  --accent:#C2603E;      /* 陶土橙(温暖点缀) */
  --accent-deep:#9E4B2F;
  --accent-soft:#F3E2D8;
  --hairline:rgba(33,29,23,.10);
  --dark:#1E1B16;
  --radius:22px;
  --shadow-soft:0 20px 50px -24px rgba(33,29,23,.25);
  --ease:cubic-bezier(.16,1,.3,1);
  --font-head:'Manrope','Segoe UI','PingFang SC','Microsoft YaHei',system-ui,sans-serif;
  --font-body:'Manrope','Segoe UI','PingFang SC','Microsoft YaHei',system-ui,sans-serif;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
html[lang=zh]{scroll-behavior:smooth}
body{
  font-family:var(--font-body);
  background:var(--bg);color:var(--ink);
  line-height:1.65;-webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
button{font-family:inherit;cursor:pointer;border:none;background:none}
::selection{background:var(--accent);color:#fff}

.wrap{width:min(1240px,92%);margin:0 auto}
.section{padding:clamp(4.5rem,9vw,7.5rem) 0}

/* ---------- 头部导航 ---------- */
.site-head{
  position:fixed;inset:0 0 auto;z-index:100;
  transition:background .4s var(--ease),box-shadow .4s,transform .4s;
}
.site-head.scrolled{
  background:rgba(250,247,242,.86);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  box-shadow:0 1px 0 var(--hairline);
}
.site-head.hidden-up{transform:translateY(-100%)}
.nav{display:flex;align-items:center;justify-content:space-between;height:76px}
.brand{display:flex;align-items:center;gap:.65rem;font-family:var(--font-head)}
.brand-mark{
  width:40px;height:40px;border-radius:12px;
  background:var(--ink);color:#FBF8F3;
  display:grid;place-items:center;
  font-weight:800;font-size:1.05rem;letter-spacing:.02em;
  transition:transform .5s var(--ease),background .4s;
}
.brand:hover .brand-mark{transform:rotate(-8deg) scale(1.06);background:var(--accent)}
.brand-name{font-weight:800;font-size:1.28rem;letter-spacing:.14em}
.brand-sub{display:block;font-size:.6rem;font-weight:600;letter-spacing:.32em;color:var(--muted);text-transform:uppercase;margin-top:-2px}
.nav-links{display:flex;align-items:center;gap:2.2rem;list-style:none}
.nav-links a{
  font-size:.95rem;font-weight:600;color:var(--ink-soft);position:relative;
  padding:.35rem 0;
}
.nav-links a::after{
  content:'';position:absolute;left:0;bottom:0;height:2px;width:100%;
  background:var(--accent);transform:scaleX(0);transform-origin:right;
  transition:transform .35s var(--ease);
}
.nav-links a:hover::after,.nav-links a.active::after{transform:scaleX(1);transform-origin:left}
.nav-right{display:flex;align-items:center;gap:1rem}
.lang-switch{
  display:flex;align-items:center;gap:2px;
  background:rgba(33,29,23,.06);border-radius:999px;padding:3px;
}
.lang-switch button{
  padding:.32rem .8rem;border-radius:999px;font-size:.8rem;font-weight:700;
  color:var(--muted);transition:all .3s var(--ease);letter-spacing:.03em;
}
.lang-switch button.on{background:var(--ink);color:#FBF8F3}
.burger{display:none;flex-direction:column;gap:5px;padding:.5rem}
.burger span{width:22px;height:2px;background:var(--ink);border-radius:2px;transition:.3s}
.mobile-menu{
  display:none;position:fixed;inset:0;z-index:99;background:var(--bg);
  padding:110px 8% 3rem;flex-direction:column;gap:.4rem;
}
.mobile-menu.open{display:flex}
.mobile-menu a{
  font-size:1.6rem;font-weight:700;padding:.9rem 0;border-bottom:1px solid var(--hairline);
  display:flex;justify-content:space-between;align-items:center;
}
.mobile-menu a span{color:var(--muted);font-size:.85rem;font-weight:600}

/* ---------- Hero ---------- */
.hero{
  min-height:100svh;display:grid;align-items:center;
  padding:130px 0 60px;position:relative;overflow:hidden;
}
.hero-grid{display:grid;grid-template-columns:1.05fr 1fr;gap:clamp(2rem,5vw,5rem);align-items:center}
.hero-tag{
  display:inline-flex;align-items:center;gap:.55rem;
  font-size:.8rem;font-weight:700;letter-spacing:.22em;text-transform:uppercase;color:var(--accent);
  margin-bottom:1.6rem;
}
.hero-tag::before{content:'';width:34px;height:1.5px;background:var(--accent)}
.hero h1{
  font-family:var(--font-head);font-weight:800;
  font-size:clamp(2.6rem,5.6vw,4.4rem);line-height:1.06;letter-spacing:-.02em;
  margin-bottom:1.4rem;
}
.hero h1 em{font-style:normal;color:var(--accent);position:relative;white-space:nowrap}
.hero h1 em::after{
  content:'';position:absolute;left:0;right:0;bottom:.06em;height:.32em;
  background:var(--accent-soft);z-index:-1;border-radius:4px;
}
.hero p.lead{font-size:1.12rem;color:var(--ink-soft);max-width:33em;margin-bottom:2.4rem}
.hero-cta{display:flex;gap:1rem;flex-wrap:wrap}
.btn{
  display:inline-flex;align-items:center;gap:.6rem;
  padding:1rem 2rem;border-radius:999px;font-weight:700;font-size:.98rem;
  transition:transform .35s var(--ease),box-shadow .35s,background .3s,color .3s;
}
.btn:active{transform:scale(.97)}
.btn-primary{background:var(--ink);color:#FBF8F3;box-shadow:var(--shadow-soft)}
.btn-primary:hover{background:var(--accent);transform:translateY(-3px)}
.btn-ghost{border:1.5px solid rgba(33,29,23,.25);color:var(--ink)}
.btn-ghost:hover{border-color:var(--ink);transform:translateY(-3px)}
.btn-light{background:#FBF8F3;color:var(--ink)}
.btn-light:hover{background:var(--accent);color:#fff;transform:translateY(-3px)}
.hero-visual{position:relative}
.hero-visual .frame{
  border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow-soft);
  transform:rotate(1.6deg);
}
.hero-visual .frame img{width:100%;aspect-ratio:5/4;object-fit:cover;transition:transform 1.2s var(--ease)}
.hero-visual:hover .frame img{transform:scale(1.04)}
.hero-chip{
  position:absolute;background:#fff;border-radius:16px;box-shadow:var(--shadow-soft);
  padding:.85rem 1.15rem;display:flex;align-items:center;gap:.7rem;
  animation:floaty 5.5s ease-in-out infinite;
}
.hero-chip b{font-family:var(--font-head);font-size:1.25rem;letter-spacing:-.01em}
.hero-chip small{display:block;font-size:.72rem;color:var(--muted);font-weight:600;line-height:1.3}
.chip-1{top:-22px;left:-14px}
.chip-2{bottom:26px;right:-18px;animation-delay:-2.7s}
.hero-chip .dot{width:9px;height:9px;border-radius:50%;background:var(--accent);flex:none}
@keyframes floaty{0%,100%{transform:translateY(0)}50%{transform:translateY(-10px)}}
.hero-strip{
  position:absolute;bottom:0;left:0;right:0;border-top:1px solid var(--hairline);
  background:rgba(250,247,242,.6);backdrop-filter:blur(6px);
}
.hero-strip .wrap{display:flex;justify-content:space-between;gap:1.5rem;padding:1.05rem 0;flex-wrap:wrap}
.hero-strip span{font-size:.82rem;font-weight:600;color:var(--muted);letter-spacing:.06em;display:flex;align-items:center;gap:.5rem}
.hero-strip span::before{content:'';width:5px;height:5px;border-radius:50%;background:var(--accent)}

/* ---------- 标题块 ---------- */
.sec-head{max-width:720px;margin-bottom:clamp(2.5rem,5vw,4rem)}
.sec-head.center{margin-inline:auto;text-align:center}
.kicker{
  font-size:.78rem;font-weight:800;letter-spacing:.26em;text-transform:uppercase;
  color:var(--accent);margin-bottom:1rem;display:block;
}
.sec-head h2,.sec-head h1{
  font-family:var(--font-head);font-weight:800;letter-spacing:-.02em;
  font-size:clamp(1.9rem,3.6vw,2.9rem);line-height:1.12;margin-bottom:1rem;
}
.sec-head p{color:var(--ink-soft);font-size:1.04rem}

/* ---------- 品类卡片 ---------- */
.cat-grid{display:grid;grid-template-columns:repeat(12,1fr);gap:1.4rem}
.cat-card{
  grid-column:span 4;position:relative;border-radius:var(--radius);overflow:hidden;
  background:var(--surface);box-shadow:0 2px 0 var(--hairline);
  transition:transform .5s var(--ease),box-shadow .5s;
}
.cat-card.tall{grid-column:span 4;grid-row:span 2}
.cat-card.wide{grid-column:span 8}
.cat-card:hover{transform:translateY(-8px);box-shadow:var(--shadow-soft)}
.cat-card .ph{overflow:hidden}
.cat-card .ph img{width:100%;height:100%;object-fit:cover;transition:transform .9s var(--ease)}
.cat-card:hover .ph img{transform:scale(1.05)}
.cat-card .ph{aspect-ratio:4/3}
.cat-card.wide .ph{aspect-ratio:16/7.2}
.cat-card.tall .ph{aspect-ratio:4/4.05}
.cat-body{padding:1.4rem 1.5rem 1.5rem;display:flex;justify-content:space-between;align-items:center;gap:1rem}
.cat-body h3{font-family:var(--font-head);font-weight:800;font-size:1.18rem;letter-spacing:-.01em}
.cat-body small{display:block;color:var(--muted);font-weight:600;font-size:.82rem;margin-top:.15rem}
.cat-go{
  flex:none;width:44px;height:44px;border-radius:50%;
  border:1.5px solid rgba(33,29,23,.18);display:grid;place-items:center;
  transition:.35s var(--ease);
}
.cat-card:hover .cat-go{background:var(--accent);border-color:var(--accent);color:#fff;transform:rotate(-35deg)}

/* ---------- 产品网格 ---------- */
.filter-bar{display:flex;gap:.6rem;flex-wrap:wrap;margin-bottom:2.6rem}
.filter-bar button{
  padding:.6rem 1.35rem;border-radius:999px;font-size:.88rem;font-weight:700;
  border:1.5px solid rgba(33,29,23,.16);color:var(--ink-soft);
  transition:.3s var(--ease);
}
.filter-bar button.on,.filter-bar button:hover{background:var(--ink);border-color:var(--ink);color:#FBF8F3}
.prod-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1.6rem}
.prod-card{
  background:var(--surface);border-radius:var(--radius);overflow:hidden;
  box-shadow:0 2px 0 var(--hairline);display:flex;flex-direction:column;
  transition:transform .5s var(--ease),box-shadow .5s;
}
.prod-card:hover{transform:translateY(-8px);box-shadow:var(--shadow-soft)}
.prod-card .ph{aspect-ratio:4/3.1;overflow:hidden;position:relative;background:#F1ECE4}
.prod-card .ph img{width:100%;height:100%;object-fit:cover;transition:transform .9s var(--ease)}
.prod-card:hover .ph img{transform:scale(1.06)}
.badge{
  position:absolute;top:14px;left:14px;z-index:2;
  background:var(--accent);color:#fff;font-size:.68rem;font-weight:800;
  letter-spacing:.12em;text-transform:uppercase;padding:.32rem .7rem;border-radius:999px;
}
.badge.grey{background:var(--ink)}
.prod-body{padding:1.35rem 1.4rem 1.5rem;display:flex;flex-direction:column;gap:.45rem;flex:1}
.prod-body h3{font-family:var(--font-head);font-weight:800;font-size:1.14rem;letter-spacing:-.01em}
.prod-body .spec{font-size:.85rem;color:var(--muted);font-weight:600}
.prod-body p{font-size:.92rem;color:var(--ink-soft);flex:1}
.prod-link{
  margin-top:.7rem;font-size:.9rem;font-weight:800;color:var(--accent);
  display:inline-flex;align-items:center;gap:.45rem;
}
.prod-link svg{transition:transform .3s var(--ease)}
.prod-card:hover .prod-link svg{transform:translateX(5px)}

/* ---------- 优势/数字 ---------- */
.dark-band{background:var(--dark);color:#EFEAE2;border-radius:clamp(1.5rem,3vw,2.5rem);overflow:hidden}
.dark-band .kicker{color:#E09372}
.dark-band h2{color:#FBF8F3}
.num-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:rgba(239,234,226,.12);border-radius:var(--radius);overflow:hidden}
.num-cell{background:var(--dark);padding:2.4rem 1.8rem}
.num-cell b{font-family:var(--font-head);font-weight:800;font-size:clamp(2.2rem,3.4vw,3.1rem);letter-spacing:-.02em;color:#FBF8F3;display:block;line-height:1.05}
.num-cell b i{font-style:normal;color:#E09372}
.num-cell span{font-size:.88rem;font-weight:600;color:rgba(239,234,226,.6);display:block;margin-top:.55rem}
.feat-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1.4rem;margin-top:2.6rem}
.feat{
  background:rgba(251,248,243,.045);border:1px solid rgba(239,234,226,.12);
  border-radius:var(--radius);padding:1.9rem 1.7rem;
  transition:.4s var(--ease);
}
.feat:hover{border-color:rgba(224,147,114,.5);transform:translateY(-5px)}
.feat .ico{
  width:52px;height:52px;border-radius:15px;background:rgba(224,147,114,.14);
  display:grid;place-items:center;margin-bottom:1.2rem;color:#E09372;
}
.feat h3{font-family:var(--font-head);font-weight:800;font-size:1.08rem;color:#FBF8F3;margin-bottom:.5rem}
.feat p{font-size:.92rem;color:rgba(239,234,226,.68)}

/* ---------- 认证带 ---------- */
.cert-band{display:flex;flex-wrap:wrap;gap:.8rem;justify-content:center}
.cert-chip{
  padding:.65rem 1.3rem;border-radius:999px;border:1.5px solid var(--hairline);
  font-weight:800;font-size:.86rem;letter-spacing:.1em;color:var(--ink-soft);
  background:var(--surface);transition:.3s var(--ease);
}
.cert-chip:hover{border-color:var(--accent);color:var(--accent);transform:translateY(-3px)}

/* ---------- 详情页 ---------- */
.crumbs{padding:110px 0 0;font-size:.85rem;color:var(--muted);font-weight:600}
.crumbs a:hover{color:var(--accent)}
.crumbs span{margin:0 .5rem;color:rgba(33,29,23,.3)}
.detail-grid{display:grid;grid-template-columns:1.15fr 1fr;gap:clamp(2rem,4.5vw,4.5rem);align-items:start;padding:1.8rem 0 0}
.detail-media{position:sticky;top:100px}
.detail-media .main{
  border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow-soft);background:#F1ECE4;
}
.detail-media .main img{width:100%;aspect-ratio:4/3.2;object-fit:cover}
.thumbs{display:flex;gap:.8rem;margin-top:.9rem}
.thumbs button{
  width:86px;height:70px;border-radius:14px;overflow:hidden;
  border:2px solid transparent;opacity:.65;transition:.3s var(--ease);flex:none;
}
.thumbs button.on{border-color:var(--accent);opacity:1}
.thumbs button:hover{opacity:1}
.thumbs img{width:100%;height:100%;object-fit:cover}
.detail-info .model{
  font-size:.78rem;font-weight:800;letter-spacing:.2em;color:var(--muted);text-transform:uppercase;
}
.detail-info h1{font-family:var(--font-head);font-weight:800;font-size:clamp(1.9rem,3vw,2.6rem);letter-spacing:-.02em;margin:.5rem 0 1rem}
.detail-info .desc{color:var(--ink-soft);margin-bottom:1.6rem}
.spec-table{width:100%;border-collapse:collapse;margin:1.4rem 0 1.8rem}
.spec-table td{padding:.85rem 0;border-bottom:1px solid var(--hairline);font-size:.95rem}
.spec-table td:first-child{color:var(--muted);font-weight:600;width:44%}
.spec-table td:last-child{font-weight:700}
.feat-list{list-style:none;display:grid;gap:.55rem;margin-bottom:2rem}
.feat-list li{display:flex;gap:.65rem;font-size:.95rem;color:var(--ink-soft)}
.feat-list li::before{content:'';flex:none;width:6px;height:6px;border-radius:50%;background:var(--accent);margin-top:.55em}
.detail-cta{display:flex;gap:.9rem;flex-wrap:wrap}

/* ---------- 品牌页 ---------- */
.story-band{display:grid;grid-template-columns:1fr 1fr;gap:clamp(2rem,5vw,5rem);align-items:center}
.story-band>*{min-width:0}
.story-band .txt p{color:var(--ink-soft);margin-bottom:1.1rem}
.story-band .visual{border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow-soft)}
.story-band .visual img{width:100%;object-fit:cover;transition:transform 1.2s var(--ease)}
.story-band .visual:hover img{transform:scale(1.04)}
.timeline{position:relative;margin-top:3rem;display:grid;gap:0}
.tl-item{
  display:grid;grid-template-columns:130px 1fr;gap:2rem;
  padding:1.6rem 0;border-top:1px solid var(--hairline);
}
.tl-item b{font-family:var(--font-head);font-size:1.5rem;font-weight:800;color:var(--accent);letter-spacing:-.02em}
.tl-item h3{font-family:var(--font-head);font-weight:800;font-size:1.1rem;margin-bottom:.3rem}
.tl-item p{color:var(--ink-soft);font-size:.95rem}

/* ---------- 联系页 ---------- */
.contact-grid{display:grid;grid-template-columns:1fr 1.15fr;gap:clamp(2.5rem,5vw,5rem);align-items:start}
.c-item{display:flex;gap:1.1rem;padding:1.3rem 0;border-bottom:1px solid var(--hairline)}
.c-item .ico{flex:none;width:50px;height:50px;border-radius:14px;background:var(--accent-soft);color:var(--accent-deep);display:grid;place-items:center}
.c-item b{font-family:var(--font-head);display:block;font-size:1.02rem}
.c-item span{color:var(--ink-soft);font-size:.94rem}
.c-item a:hover{color:var(--accent)}
.form-card{
  background:var(--surface);border-radius:var(--radius);box-shadow:var(--shadow-soft);
  padding:clamp(1.8rem,3.5vw,2.8rem);
}
.form-card h3{font-family:var(--font-head);font-weight:800;font-size:1.35rem;margin-bottom:1.5rem}
.f-row{display:grid;grid-template-columns:1fr 1fr;gap:1rem}
.f-block{display:flex;flex-direction:column;gap:.4rem;margin-bottom:1.1rem}
.f-block label{font-size:.82rem;font-weight:700;color:var(--ink-soft)}
.f-block input,.f-block select,.f-block textarea{
  font-family:inherit;font-size:.95rem;padding:.85rem 1rem;border-radius:13px;
  border:1.5px solid rgba(33,29,23,.14);background:var(--bg);color:var(--ink);
  transition:border-color .3s;outline:none;width:100%;
}
.f-block input:focus,.f-block select:focus,.f-block textarea:focus{border-color:var(--accent)}
.f-note{font-size:.8rem;color:var(--muted);margin-top:.9rem}

/* ---------- CTA横幅 ---------- */
.cta-band{
  background:var(--dark);color:#FBF8F3;border-radius:clamp(1.5rem,3vw,2.5rem);
  padding:clamp(3rem,6vw,5rem);display:flex;justify-content:space-between;align-items:center;
  gap:2rem;flex-wrap:wrap;position:relative;overflow:hidden;
}
.cta-band::after{
  content:'';position:absolute;right:-120px;top:-120px;width:340px;height:340px;border-radius:50%;
  background:radial-gradient(closest-side,rgba(194,96,62,.35),transparent);
}
.cta-band h2{font-family:var(--font-head);font-weight:800;font-size:clamp(1.7rem,3vw,2.5rem);letter-spacing:-.02em;max-width:18em}
.cta-band p{color:rgba(251,248,243,.65);margin-top:.7rem}

/* ---------- 页脚 ---------- */
.site-foot{background:var(--dark);color:rgba(239,234,226,.62);margin-top:clamp(4rem,8vw,7rem)}
.foot-top{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:2.5rem;padding:4.5rem 0 3rem}
.site-foot h4{color:#FBF8F3;font-family:var(--font-head);font-size:.95rem;font-weight:800;letter-spacing:.08em;margin-bottom:1.1rem;text-transform:uppercase}
.site-foot ul{list-style:none;display:grid;gap:.6rem;font-size:.92rem}
.site-foot a:hover{color:#E09372}
.foot-brand .brand-mark{background:var(--accent)}
.foot-brand p{font-size:.92rem;max-width:30em;margin-top:1rem}
.foot-bottom{
  border-top:1px solid rgba(239,234,226,.1);padding:1.4rem 0;
  display:flex;justify-content:space-between;gap:1rem;flex-wrap:wrap;font-size:.82rem;
}

/* ---------- 动效 ---------- */
.rv{opacity:0;transform:translateY(28px);transition:opacity .8s var(--ease),transform .8s var(--ease)}
.rv.in{opacity:1;transform:none}
.rv-d1{transition-delay:.08s}.rv-d2{transition-delay:.16s}.rv-d3{transition-delay:.24s}.rv-d4{transition-delay:.32s}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.01ms!important;transition-duration:.01ms!important}
  html{scroll-behavior:auto}
  .rv{opacity:1;transform:none}
}

/* ---------- 响应式 ---------- */
@media(max-width:1020px){
  .hero-grid{grid-template-columns:1fr;gap:3rem}
  .hero{min-height:auto;padding-top:120px}
  .hero-visual{max-width:560px;justify-self:start}
  .prod-grid{grid-template-columns:repeat(2,1fr)}
  .cat-card,.cat-card.wide,.cat-card.tall{grid-column:span 6}
  .cat-card.tall{grid-row:span 1}
  .cat-card.tall .ph{aspect-ratio:4/3}
  .cat-card.wide .ph{aspect-ratio:16/9}
  .feat-grid{grid-template-columns:repeat(2,1fr)}
  .num-grid{grid-template-columns:repeat(2,1fr)}
  .detail-grid{grid-template-columns:1fr}
  .detail-media{position:static}
  .story-band,.contact-grid{grid-template-columns:1fr}
  .foot-top{grid-template-columns:1fr 1fr}
}
@media(max-width:680px){
  html,body{overflow-x:clip}
  .hero h1{font-size:clamp(1.9rem,8.4vw,2.5rem)}
  .hero h1 em::after{height:.28em}
  .nav-links{display:none}
  .burger{display:flex}
  .prod-grid{grid-template-columns:1fr}
  .cat-card,.cat-card.wide,.cat-card.tall{grid-column:span 12}
  .feat-grid{grid-template-columns:1fr}
  .num-grid{grid-template-columns:repeat(2,1fr)}
  .num-cell{padding:1.6rem 1.2rem}
  .hero-chip{display:none}
  .tl-item{grid-template-columns:1fr;gap:.4rem}
  .f-row{grid-template-columns:1fr}
  .foot-top{grid-template-columns:1fr;gap:2rem}
  .section{padding:3.5rem 0}
  .cta-band{padding:2.4rem 1.8rem}
}

/* ==========================================================
   高级站补强模块：悬浮联系条 + FAQ 手风琴
   ========================================================== */

/* ---------- 悬浮联系条 ---------- */
.dock{
  position:fixed;right:clamp(14px,2.2vw,26px);bottom:clamp(16px,2.4vw,28px);
  z-index:120;display:flex;flex-direction:column;align-items:flex-end;gap:10px;
}
.dock-btn{
  width:54px;height:54px;border-radius:50%;
  display:grid;place-items:center;
  color:#fff;background:var(--ink);
  box-shadow:0 12px 28px -10px rgba(33,29,23,.55);
  transition:transform .35s var(--ease),box-shadow .35s,opacity .35s;
}
.dock-btn:hover{transform:translateY(-3px) scale(1.06);box-shadow:0 18px 34px -12px rgba(33,29,23,.6)}
.dock-btn:active{transform:scale(.96)}
.dock-btn svg{width:24px;height:24px}
.dock-btn.wa{background:#25D366}
.dock-btn.tg{background:#229ED9}
.dock-btn.mail{background:var(--accent)}
.dock-btn.top{
  background:var(--surface);color:var(--ink);
  box-shadow:0 8px 22px -10px rgba(33,29,23,.4),0 0 0 1px var(--hairline);
  opacity:0;pointer-events:none;transform:translateY(8px);
}
.dock-btn.top.show{opacity:1;pointer-events:auto;transform:none}
.dock-hint{
  position:absolute;right:64px;bottom:8px;
  background:var(--ink);color:#FBF8F3;
  font-size:.8rem;font-weight:600;letter-spacing:.02em;
  padding:.5rem .85rem;border-radius:999px;white-space:nowrap;
  box-shadow:0 10px 24px -12px rgba(33,29,23,.6);
  opacity:0;transform:translateX(10px);pointer-events:none;
  transition:opacity .4s var(--ease),transform .4s var(--ease);
}
.dock-hint.show{opacity:1;transform:none}
.dock-hint::after{
  content:'';position:absolute;right:-5px;top:50%;transform:translateY(-50%) rotate(45deg);
  width:10px;height:10px;background:var(--ink);
}
@media(max-width:680px){
  .dock-btn{width:48px;height:48px}
  .dock-btn svg{width:21px;height:21px}
  .dock-hint{display:none}
}

/* ---------- FAQ 手风琴 ---------- */
.faq-section{background:var(--surface)}
.faq-list{max-width:880px;margin:2.6rem auto 0;display:flex;flex-direction:column;gap:.7rem}
.faq-item{
  border:1px solid var(--hairline);border-radius:16px;background:var(--bg);
  overflow:hidden;transition:border-color .3s,box-shadow .3s;
}
.faq-item[open]{border-color:var(--accent-soft);box-shadow:var(--shadow-soft)}
.faq-item summary{
  list-style:none;cursor:pointer;
  display:flex;align-items:center;justify-content:space-between;gap:1rem;
  padding:1.1rem 1.3rem;
  font-family:var(--font-head);font-weight:700;font-size:1.02rem;line-height:1.4;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:'';flex:0 0 auto;width:11px;height:11px;
  border-right:2.4px solid var(--accent);border-bottom:2.4px solid var(--accent);
  transform:rotate(45deg) translateY(-2px);transition:transform .35s var(--ease);
}
.faq-item[open] summary::after{transform:rotate(225deg) translateY(-2px)}
.faq-item p{
  padding:0 1.3rem 1.25rem;color:var(--ink-soft);font-size:.95rem;line-height:1.75;
}