/* ================================================================
   宜昌市予以见电子商务有限公司 — "The Lock Stair"
   gorge night + chamber teal + lock-lamp amber + alarm red + concrete
   ================================================================ */
:root{
  --night:#081019;      /* gorge night */
  --wall:#0e1822;       /* concrete wall */
  --wall2:#14212e;      /* raised wall */
  --seam:#1e3040;       /* wall seam */
  --seam2:#2a4054;
  --water:#38a89b;      /* chamber water teal */
  --water2:#5cc4b6;
  --lamp:#e8a83c;       /* lock lamp amber */
  --lamp2:#f2c263;
  --alarm:#d95a4b;      /* signal red */
  --paper:#eae9e2;      /* sheet white */
  --dim:#9aa8a4;
  --mute:#5f737a;
  --f-head:'Space Grotesk',sans-serif;
  --f-body:'Source Sans 3',sans-serif;
  --f-mono:'JetBrains Mono',monospace;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{background:var(--night);color:var(--paper);font-family:var(--f-body);font-size:16.5px;line-height:1.7;-webkit-font-smoothing:antialiased}
a{color:var(--lamp);text-decoration:none}
a:hover{color:var(--paper)}
img,svg{max-width:100%;display:block}
::selection{background:var(--water);color:var(--night)}

.wrap{max-width:1180px;margin:0 auto;padding:0 28px}

/* ---------- header ---------- */
.site-head{position:sticky;top:0;z-index:60;background:var(--night);border-bottom:2px solid var(--seam2)}
.head-in{max-width:1240px;margin:0 auto;padding:0 28px;height:74px;display:flex;align-items:center;justify-content:space-between;gap:24px}
.brand{display:flex;align-items:center;gap:13px}
.brand-lock{width:40px;height:40px;flex:none;background:var(--wall2);border:2px solid var(--water);position:relative}
.brand-lock::after{content:"";position:absolute;left:50%;bottom:5px;top:5px;width:14px;transform:translateX(-50%);
  border:2.5px solid var(--water2);border-top:none}
.brand-lock::before{content:"";position:absolute;left:50%;top:-4px;width:8px;height:8px;background:var(--lamp);transform:translateX(-50%);border-radius:50%}
.brand-txt b{display:block;font-family:var(--f-head);font-weight:700;font-size:19px;letter-spacing:.02em;color:var(--paper);line-height:1.05}
.brand-txt span{font-family:var(--f-mono);font-size:9.5px;letter-spacing:.18em;color:var(--water2);text-transform:uppercase}
.nav{display:flex;gap:2px;align-items:center}
.nav a{font-family:var(--f-mono);font-size:11.5px;letter-spacing:.1em;text-transform:uppercase;color:var(--dim);
  padding:9px 14px;border:1px solid transparent}
.nav a:hover{color:var(--lamp);border-color:var(--seam2)}
.nav a.on{color:var(--lamp);border-color:var(--seam2);background:var(--wall)}
.nav a.cta{margin-left:8px;background:var(--lamp);color:var(--night);border-color:var(--lamp2);font-weight:500}
.nav a.cta:hover{background:var(--lamp2);color:var(--night)}
.burger{display:none;background:none;border:1px solid var(--seam2);width:44px;height:44px;cursor:pointer;flex-direction:column;align-items:center;justify-content:center;gap:5px}
.burger i{display:block;width:20px;height:2px;background:var(--water2)}
.mnav{display:none;background:var(--wall);border-bottom:2px solid var(--seam2);padding:8px 20px 16px;flex-direction:column}
.mnav a{padding:12px 6px;border-bottom:1px solid var(--seam);color:var(--dim);font-family:var(--f-mono);font-size:12px;letter-spacing:.12em;text-transform:uppercase}
.mnav a:last-child{border-bottom:none;color:var(--lamp)}
.mnav.open{display:flex}

/* ---------- hero ---------- */
.hero{padding:76px 0 92px;border-bottom:1px solid var(--seam);position:relative;overflow:hidden}
.hero::before{content:"";position:absolute;inset:0;
  background-image:linear-gradient(var(--seam) 1px,transparent 1px);background-size:100% 22px;opacity:.4;pointer-events:none}
.hero-in{display:grid;grid-template-columns:1.02fr .98fr;gap:60px;align-items:center;position:relative}
.kick{font-family:var(--f-mono);font-size:12px;letter-spacing:.24em;color:var(--water2);text-transform:uppercase;display:block;margin-bottom:18px}
.kick::before{content:"◆ ";color:var(--lamp)}
h1{font-family:var(--f-head);font-weight:700;font-size:clamp(54px,6.8vw,92px);line-height:.98;letter-spacing:.005em;color:var(--paper)}
h1 em{font-style:normal;color:var(--water2)}
h1 em.g{color:var(--lamp)}
.hero p.lede{margin-top:24px;max-width:520px;color:var(--dim);font-size:17.5px}
.hero p.lede strong{color:var(--paper)}
.hero-cta{display:flex;gap:14px;margin-top:34px;flex-wrap:wrap}
.btn{display:inline-flex;align-items:center;gap:10px;padding:14px 26px;font-family:var(--f-mono);font-size:12px;
  letter-spacing:.14em;text-transform:uppercase;transition:.2s;cursor:pointer;border:2px solid transparent}
.btn svg{width:15px;height:15px}
.btn-lamp{background:var(--lamp);color:var(--night);border-color:var(--lamp2);font-weight:500}
.btn-lamp:hover{background:var(--lamp2);color:var(--night)}
.btn-line{background:transparent;color:var(--water2);border-color:var(--seam2)}
.btn-line:hover{border-color:var(--water);color:var(--paper)}
.hero-fig{position:relative}
.fig-cap{font-family:var(--f-mono);font-size:10px;letter-spacing:.2em;color:var(--mute);text-transform:uppercase;
  display:block;margin-bottom:10px}
.lock-fig{background:var(--wall);border:2px solid var(--seam2)}

/* ---------- ticker ---------- */
.tick{border-bottom:1px solid var(--seam);background:var(--wall);overflow:hidden;padding:13px 0}
.tick-t{display:flex;width:max-content;animation:tick 38s linear infinite}
.tick-t span{font-family:var(--f-mono);font-size:14px;letter-spacing:.12em;color:var(--dim);padding:0 30px;white-space:nowrap;text-transform:uppercase}
.tick-t span i{color:var(--water);font-style:normal;padding-right:30px}
@keyframes tick{to{transform:translateX(-50%)}}

/* ---------- sections ---------- */
.sect{padding:88px 0}
.sect.b2{background:var(--wall)}
.sec-head{margin-bottom:48px;max-width:680px}
.sec-head h2,h2{font-family:var(--f-head);font-weight:700;font-size:clamp(38px,4.6vw,58px);line-height:1;letter-spacing:.005em;color:var(--paper)}
.sec-head h2 em,h2 em{font-style:normal;color:var(--water2)}
.sec-head h2 em.g,h2 em.g{color:var(--lamp)}
.sec-head p{margin-top:16px;color:var(--dim)}

/* lock chamber cards */
.lk-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.lk{background:var(--wall);border:2px solid var(--seam2);display:flex;flex-direction:column;transition:.25s;position:relative}
.lk:hover{border-color:var(--water);transform:translateY(-4px)}
.lk-gate{background:var(--wall2);padding:14px 20px;display:flex;justify-content:space-between;align-items:center;border-bottom:2px solid var(--seam2);position:relative}
.lk-gate::after{content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;
  background:repeating-linear-gradient(90deg,var(--water) 0 8px,transparent 8px 14px)}
.lk-gate .g-no{font-family:var(--f-mono);font-size:11px;letter-spacing:.16em;color:var(--water2)}
.lk-gate .g-lamp{width:12px;height:12px;border-radius:50%;background:var(--water)}
.lk.y .g-lamp{background:var(--lamp)}
.lk.r .g-lamp{background:var(--alarm)}
.lk-b{padding:24px 22px 26px;flex:1;display:flex;flex-direction:column}
.lk-b h3{font-family:var(--f-head);font-weight:700;font-size:25px;letter-spacing:.01em;color:var(--paper);margin-bottom:10px}
.lk-b p{color:var(--dim);font-size:14.5px;flex:1}
.lk-b .g-more{font-family:var(--f-mono);font-size:10.5px;letter-spacing:.14em;color:var(--lamp);text-transform:uppercase;margin-top:18px}

/* waterline stats */
.gauge{display:grid;grid-template-columns:repeat(4,1fr);border:2px solid var(--seam2);background:var(--night)}
.gg{padding:28px 26px;border-right:1px solid var(--seam);position:relative}
.gg:last-child{border-right:none}
.gg::after{content:"";position:absolute;left:0;right:0;bottom:0;height:5px;
  background:repeating-linear-gradient(90deg,var(--water) 0 8px,transparent 8px 14px)}
.gg b{display:block;font-family:var(--f-head);font-weight:700;font-size:46px;color:var(--water2);line-height:1}
.gg span{font-family:var(--f-mono);font-size:10px;letter-spacing:.16em;color:var(--mute);text-transform:uppercase;display:block;margin-top:10px}

/* process */
.proc{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.pc{border-top:3px solid var(--seam2);padding-top:20px}
.pc:nth-child(1){border-color:var(--water)}
.pc:nth-child(2){border-color:var(--lamp)}
.pc:nth-child(3){border-color:var(--seam2)}
.pc:nth-child(4){border-color:var(--alarm)}
.pc .p-no{font-family:var(--f-mono);font-size:11px;letter-spacing:.18em;color:var(--water2);display:block;margin-bottom:12px}
.pc h4{font-family:var(--f-head);font-weight:700;font-size:22px;letter-spacing:.01em;color:var(--paper);margin-bottom:8px}
.pc p{color:var(--dim);font-size:14.5px}

/* split */
.split{display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:center}
.split.rev>.fig{order:2}
.split p{color:var(--dim)}
.split p strong{color:var(--paper)}
.split p+p{margin-top:14px}

/* cta */
.cta-box{border:2px solid var(--water);background:var(--wall2);padding:56px;text-align:center;position:relative}
.cta-box::before{content:"";position:absolute;top:-9px;left:50%;width:70px;height:16px;background:var(--lamp);
  transform:translateX(-50%)}
.cta-box h2{margin-bottom:14px}
.cta-box p{color:var(--dim);max-width:560px;margin:0 auto 30px}

/* ---------- footer ---------- */
.site-foot{border-top:2px solid var(--seam2);background:var(--wall)}
.foot-in{padding:64px 0 0}
.foot-top{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:44px}
.foot-brand p{color:var(--mute);font-size:14px;margin-top:16px;max-width:300px}
.fcol h4{font-family:var(--f-mono);font-size:10px;letter-spacing:.2em;color:var(--water2);text-transform:uppercase;margin-bottom:16px}
.fcol a,.fcol span{display:block;color:var(--dim);font-size:14px;padding:4px 0}
.fcol a:hover{color:var(--lamp)}
.foot-bot{display:flex;justify-content:space-between;align-items:center;margin-top:52px;padding:20px 0;border-top:1px solid var(--seam);flex-wrap:wrap;gap:10px}
.foot-bot p{font-family:var(--f-mono);font-size:10px;letter-spacing:.12em;color:var(--mute);text-transform:uppercase}
.fl{display:flex;gap:22px}
.fl a{font-family:var(--f-mono);font-size:10px;letter-spacing:.12em;color:var(--dim);text-transform:uppercase}
.fl a:hover{color:var(--lamp)}

/* ---------- inner pages ---------- */
.page-head{padding:72px 0 64px;border-bottom:1px solid var(--seam);background:var(--wall);position:relative}
.page-head::after{content:"";position:absolute;left:0;bottom:-2px;width:180px;height:2px;background:var(--water)}
.crumb{font-family:var(--f-mono);font-size:11px;letter-spacing:.18em;color:var(--mute);text-transform:uppercase;display:block;margin-bottom:20px}
.crumb a{color:var(--water2)}
.page-head h1{font-size:clamp(48px,6vw,84px)}
.page-head p.lede{margin-top:20px;max-width:640px;color:var(--dim);font-size:17px}

/* lock sections */
.lk-sect{padding:64px 0;border-bottom:1px solid var(--seam)}
.lk-head{display:flex;align-items:center;gap:22px;margin-bottom:34px;flex-wrap:wrap}
.lk-head .g-no{font-family:var(--f-mono);font-size:12px;letter-spacing:.16em;color:var(--night);background:var(--water);padding:6px 14px;font-weight:500}
.lk-head.alt .g-no{background:var(--lamp)}
.lk-head.alt2 .g-no{background:var(--alarm);color:var(--paper)}
.lk-head h2{margin-bottom:0}
.lk-head .g-en{font-family:var(--f-mono);font-size:10.5px;letter-spacing:.16em;color:var(--mute);text-transform:uppercase}

/* transit rows */
.manifest{border:2px solid var(--seam2);background:var(--wall)}
.mfest-h{display:grid;grid-template-columns:100px 1fr 160px;gap:14px;padding:14px 20px;border-bottom:2px solid var(--seam2);
  font-family:var(--f-mono);font-size:10px;letter-spacing:.2em;color:var(--mute);text-transform:uppercase}
.mrow{display:grid;grid-template-columns:100px 1fr 160px;gap:14px;padding:15px 20px;border-bottom:1px solid var(--seam);
  align-items:center;transition:.15s}
.mrow:last-child{border-bottom:none}
.mrow:hover{background:var(--wall2)}
.mrow .m-no{font-family:var(--f-mono);font-size:12px;color:var(--lamp);letter-spacing:.08em}
.mrow .m-name{font-family:var(--f-head);font-weight:700;font-size:19px;letter-spacing:.01em;color:var(--paper)}
.mrow .m-name small{display:block;font-family:var(--f-body);font-weight:400;font-size:13px;color:var(--mute);margin-top:3px}
.mrow .m-st{font-family:var(--f-mono);font-size:10px;letter-spacing:.14em;color:var(--water2);text-transform:uppercase;display:flex;align-items:center;gap:8px}
.mrow .m-st::before{content:"";width:8px;height:8px;background:var(--water);flex:none}

/* rule cards */
.ru-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.ru{background:var(--wall);border:2px solid var(--seam2);padding:26px 24px}
.ru .r-no{font-family:var(--f-mono);font-size:10.5px;letter-spacing:.18em;color:var(--lamp);display:block;margin-bottom:14px}
.ru h3{font-family:var(--f-head);font-weight:700;font-size:24px;letter-spacing:.01em;color:var(--paper);margin-bottom:10px}
.ru p{color:var(--dim);font-size:14.5px}

/* faq */
.faq{border:2px solid var(--seam2);background:var(--wall)}
.fq{border-bottom:1px solid var(--seam)}
.fq:last-child{border-bottom:none}
.fq button{width:100%;display:flex;justify-content:space-between;align-items:center;gap:16px;background:none;border:none;
  padding:22px 24px;cursor:pointer;text-align:left;font-family:var(--f-head);font-weight:700;font-size:21px;letter-spacing:.01em;color:var(--paper)}
.fq button .pm{font-family:var(--f-mono);color:var(--water2);font-size:18px;flex:none}
.fq button:hover{color:var(--lamp)}
.fq .fa{max-height:0;overflow:hidden;transition:max-height .35s ease}
.fq .fa p{padding:0 24px 24px;color:var(--dim);font-size:15px;max-width:820px}
.fq.open .fa{max-height:340px}
.fq.open button .pm{color:var(--lamp)}

/* contact */
.c-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:56px;align-items:start}
.c-cards{display:grid;gap:14px}
.c-card{background:var(--wall);border:1px solid var(--seam2);padding:22px 24px;position:relative}
.c-card::before{content:"";position:absolute;left:0;top:0;bottom:0;width:4px;background:var(--water)}
.c-card:nth-child(2)::before{background:var(--lamp)}
.c-card:nth-child(3)::before{background:var(--alarm)}
.c-card:nth-child(4)::before{background:var(--seam2)}
.c-card .ck{font-family:var(--f-mono);font-size:10px;letter-spacing:.2em;color:var(--water2);text-transform:uppercase;display:block;margin-bottom:10px}
.c-card .cv{font-family:var(--f-head);font-weight:700;font-size:26px;letter-spacing:.01em;color:var(--paper);line-height:1.1;display:block}
.c-card a.cv:hover{color:var(--lamp)}
.c-card p{color:var(--mute);font-size:13px;margin-top:8px}
.qform{background:var(--wall);border:2px solid var(--seam2);padding:36px;position:relative}
.qform::before{content:"TRANSIT PERMIT";position:absolute;top:-14px;left:28px;background:var(--lamp);color:var(--night);
  font-family:var(--f-mono);font-size:10.5px;letter-spacing:.18em;padding:5px 12px;font-weight:500}
.qform h2{margin-bottom:8px}
.qform p.sub{color:var(--mute);font-size:13.5px;margin-bottom:26px}
.f2{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.fld{margin-bottom:18px}
.fld label{display:block;font-family:var(--f-mono);font-size:10px;letter-spacing:.18em;color:var(--water2);text-transform:uppercase;margin-bottom:8px}
.fld input,.fld select,.fld textarea{width:100%;background:var(--night);border:1px solid var(--seam2);color:var(--paper);
  font-family:var(--f-body);font-size:15px;padding:12px 14px;outline:none}
.fld input:focus,.fld select:focus,.fld textarea:focus{border-color:var(--water)}
.fld textarea{min-height:130px;resize:vertical}
.fnote{font-family:var(--f-mono);font-size:10.5px;color:var(--mute);letter-spacing:.08em;margin-top:14px;line-height:1.6}

/* legal */
.l-body{max-width:820px}
.l-body h2{font-size:32px;margin:44px 0 14px;color:var(--water2);font-family:var(--f-head);font-weight:700;line-height:1.05}
.l-body h3{font-family:var(--f-mono);font-size:12.5px;letter-spacing:.14em;color:var(--lamp);text-transform:uppercase;margin:26px 0 10px}
.l-body p,.l-body li{color:var(--dim);font-size:15.5px}
.l-body p+p{margin-top:12px}
.l-body ul{padding-left:22px;margin:12px 0}
.l-body li{margin-bottom:6px}
.l-body strong{color:var(--paper)}
.l-body a{color:var(--water2)}

/* reveal */
.rv{opacity:0;transform:translateY(26px);transition:opacity .7s ease,transform .7s ease}
.rv.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){.rv{opacity:1;transform:none}}

/* responsive */
@media(max-width:1000px){
  .hero-in,.split,.split.rev,.c-grid{grid-template-columns:1fr}
  .split.rev>.fig{order:0}
  .lk-grid,.ru-grid{grid-template-columns:1fr 1fr}
  .proc{grid-template-columns:1fr 1fr}
  .gauge{grid-template-columns:1fr 1fr}
  .gg:nth-child(2){border-right:none}
  .gg:nth-child(1),.gg:nth-child(2){border-bottom:1px solid var(--seam)}
  .foot-top{grid-template-columns:1fr 1fr}
}
@media(max-width:640px){
  .nav{display:none}
  .burger{display:flex}
  .lk-grid,.ru-grid,.proc,.f2{grid-template-columns:1fr}
  .cta-box{padding:36px 24px}
  .qform{padding:26px 20px}
  h1{font-size:48px}
  .mrow{grid-template-columns:76px 1fr;gap:10px}
  .mrow .m-st{grid-column:2}
  .mfest-h{display:none}
}