/* ===========================================================
   ZATELITOUNT — store stylesheet  ·  方向 D「大图张扬」
   All-dark cinematic system: full-bleed scenes, giant type,
   amber marquee, floating chips, scroll motion.
   Every legacy class name is preserved so all pages keep working.
   =========================================================== */
:root{
  /* surfaces */
  --ink:#06070a;
  --ink-2:#0b0d12;
  --paper:#f2f0ec;
  --soft:#0b0d12;
  --line:rgba(255,255,255,.11);
  --line-2:rgba(255,255,255,.2);

  /* text */
  --text:#f2f0ec;
  --muted:#9a978f;

  /* brand */
  --accent:#ff8a2b;
  --accent-dark:#e8741a;
  --accent-2:#ffb266;
  --accent-soft:rgba(255,138,43,.1);
  --ok:#4ade80;

  /* geometry */
  --max:1200px;
  --r:16px;
  --r-lg:22px;

  /* elevation */
  --sh-1:0 1px 0 rgba(255,255,255,.04) inset, 0 24px 60px -40px rgba(0,0,0,.9);
  --sh-2:0 1px 0 rgba(255,255,255,.06) inset, 0 40px 90px -50px rgba(0,0,0,1);

  --font:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
  --disp:"Segoe UI Black","Arial Black",Impact,"Helvetica Neue",sans-serif;
}
.disp,h1,h2,.foot-giant{font-family:var(--disp);font-weight:900;letter-spacing:-.04em;line-height:.92;
  text-transform:uppercase}
.mono{font-family:Consolas,ui-monospace,"SF Mono",monospace}

*{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;background:var(--ink);color:var(--text);
  font-family:var(--font);font-size:16px;line-height:1.65;
  -webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;
  overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font:inherit}
::selection{background:rgba(255,138,43,.28)}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:4px}

.wrap{max-width:var(--max);margin:0 auto;padding:0 24px}
.center{text-align:center}

/* ---------- typography ---------- */
h1{font-size:clamp(38px,7vw,104px);margin:0 0 22px;color:var(--text)}
h2{font-size:clamp(28px,4.6vw,64px);margin:0;color:var(--text)}
h3{font-size:16.5px;margin:0 0 8px;line-height:1.35;font-weight:700;letter-spacing:-.015em}
h1 em,h2 em{font-style:normal;-webkit-text-stroke:2px var(--accent);color:transparent}
.lede{font-size:17px;color:var(--muted);margin:0 0 30px;max-width:56ch;line-height:1.7}
.sub{color:var(--muted);margin:10px 0 0;font-size:15.5px}
.note{font-size:13.5px;color:var(--muted);line-height:1.6}
.note a{color:var(--accent);font-weight:600}
.eyebrow{display:inline-block;font-family:Consolas,ui-monospace,monospace;font-size:10.5px;
  font-weight:400;letter-spacing:.26em;text-transform:uppercase;color:var(--accent-2);margin-bottom:16px}
.more{font-weight:700;font-size:13px;letter-spacing:.12em;text-transform:uppercase;color:var(--accent);
  white-space:nowrap;display:inline-flex;align-items:center;gap:8px;transition:gap .25s}
.more:hover{gap:13px}

/* ---------- announcement + header (floats over the big image) ---------- */
#shell-top{position:fixed;top:0;left:0;right:0;z-index:60}
.announce{
  background:var(--ink);color:var(--accent-2);font-family:Consolas,ui-monospace,monospace;
  font-size:10.5px;letter-spacing:.24em;text-transform:uppercase;text-align:center;
  padding:11px 22px;border-bottom:1px solid rgba(255,255,255,.07);
  transition:height .35s ease,padding .35s ease,opacity .25s ease;
}
#shell-top.compact .announce{padding-top:0;padding-bottom:0;height:0;opacity:0;overflow:hidden;
  border-bottom-color:transparent}
.hdr{position:relative;z-index:2;border-bottom:1px solid transparent;
  transition:background .4s ease,border-color .4s ease,backdrop-filter .4s ease}
.hdr.scrolled{background:rgba(6,7,10,.8);border-bottom-color:var(--line);
  backdrop-filter:saturate(160%) blur(16px);-webkit-backdrop-filter:saturate(160%) blur(16px)}
.hdr-in{display:flex;align-items:center;gap:30px;height:74px}
.brand{display:flex;align-items:center;gap:11px;font-weight:800;letter-spacing:.22em;
  font-size:13px;text-transform:uppercase}
.brand-mark{width:11px;height:11px;border-radius:2px;flex:none;background:var(--accent);
  box-shadow:0 0 16px 2px rgba(255,138,43,.75)}
.nav{display:flex;gap:28px;margin-left:auto;font-size:13.5px;font-weight:500;color:rgba(255,255,255,.82)}
.nav a{position:relative;padding:4px 0;transition:color .25s}
.nav a::after{content:"";position:absolute;left:0;right:0;bottom:-2px;height:1px;
  background:var(--accent);transform:scaleX(0);transform-origin:left;transition:transform .3s}
.nav a:hover{color:var(--accent-2)}
.nav a:hover::after{transform:scaleX(1)}
.burger{display:none;background:none;border:0;font-size:20px;cursor:pointer;color:#fff}

/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;
  border:1px solid transparent;background:var(--paper);color:var(--ink);font-weight:800;
  padding:16px 28px;border-radius:999px;cursor:pointer;font-size:12.5px;letter-spacing:.1em;
  text-transform:uppercase;transition:transform .35s cubic-bezier(.2,.8,.2,1),background .3s,box-shadow .35s}
.btn:hover{transform:translateY(-2px)}
.btn:active{transform:translateY(0)}
.btn-accent{background:var(--accent);color:#1a0f04;
  box-shadow:0 18px 40px -16px rgba(255,138,43,.75)}
.btn-accent:hover{background:var(--accent-2);box-shadow:0 24px 50px -16px rgba(255,138,43,.9)}
.btn-ghost{background:rgba(255,255,255,.05);color:var(--text);border-color:rgba(255,255,255,.24);
  backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px)}
.btn-ghost:hover{background:rgba(255,255,255,.12);border-color:#fff}
.btn-sm{padding:11px 18px;font-size:11.5px}
.btn-block{width:100%}
.btn[disabled]{opacity:.5;cursor:not-allowed;transform:none}

/* ===========================================================
   场景（大图）—— 纯 CSS 分层合成，可复用到任何容器
   =========================================================== */
.sky,.scene{
  background-color:#06070a;
  background-image:
    url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 1440 420' preserveAspectRatio='none'%3E%3Cpath d='M0 250 L120 206 L240 244 L380 180 L520 228 L660 172 L800 216 L940 164 L1080 212 L1220 176 L1340 214 L1440 190 L1440 420 L0 420 Z' fill='%23141017'/%3E%3Cpath d='M0 306 L140 272 L280 310 L440 258 L600 300 L760 250 L920 294 L1080 248 L1240 292 L1440 264 L1440 420 L0 420 Z' fill='%23070709'/%3E%3C/svg%3E"),
    radial-gradient(40% 26% at 46% 60%, rgba(255,214,150,.75), rgba(255,138,43,.22) 46%, transparent 76%),
    radial-gradient(46% 9% at 14% 62%, rgba(255,206,160,.26), transparent 70%),
    radial-gradient(54% 7% at 64% 69%, rgba(255,170,110,.22), transparent 72%),
    radial-gradient(rgba(255,255,255,.55) 0 1px, transparent 1.6px),
    linear-gradient(#020409 0%,#04102a 12%,#08183a 24%,#122c55 34%,#2b4a70 42%,
      #7a5f60 49%,#d1874c 56%,#f7b169 61%,#c07536 66%,#4a2c17 72%,#0d0b0a 84%,#06070a 100%);
  background-size:100% 46%,auto,auto,auto,190px 170px,cover;
  background-repeat:no-repeat,no-repeat,no-repeat,no-repeat,repeat,no-repeat;
  background-position:center bottom,center,center,center,0 0,center;
  position:relative;
  overflow:hidden;
}
.scene::after{content:"";position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(120% 95% at 42% 44%,transparent 38%,rgba(0,0,0,.5) 100%),
    radial-gradient(rgba(255,255,255,.08) 1px,transparent 1.5px);
  background-size:auto,3px 3px;opacity:.9}
.scene>*{position:absolute}
.sc-kb{transform-origin:58% 62%;animation:kb 28s ease-in-out infinite alternate}
@keyframes kb{from{transform:scale(1.04)}to{transform:scale(1.17) translate3d(-1.4%,-1.6%,0)}}

/* 实物天线（剪影 + 边缘光） */
.rig{left:50%;bottom:24%;transform:translateX(-50%);z-index:3}
.mast{width:9px;height:clamp(80px,14vh,140px);margin:0 auto;
  background:linear-gradient(90deg,#0a0a0d,#2b2f39 45%,#0a0a0d)}
.dish{width:clamp(130px,15vw,220px);aspect-ratio:1.62;border-radius:14px;
  transform:rotate(-14deg) skewY(-5deg);background:linear-gradient(158deg,#3c4353,#1c212b 40%,#0e1117 70%,#080a0e);
  box-shadow:inset 0 2px 1px rgba(255,196,132,.45),inset 0 -3px 0 rgba(0,0,0,.65),
    inset -3px 0 0 rgba(0,0,0,.5),0 40px 80px -24px rgba(0,0,0,.9);position:relative}
.dish::after{content:"";position:absolute;left:8%;top:6%;right:8%;height:26%;border-radius:50%;
  background:linear-gradient(rgba(255,236,214,.4),transparent)}

/* ===========================================================
   HERO —— 整屏大图
   =========================================================== */
.hero{position:relative;min-height:min(100svh,900px);padding:0;display:flex;align-items:flex-end;
  overflow:hidden;isolation:isolate}
/* 两层：外层被 JS 做滚动视差，内层跑 Ken Burns */
.hero-scene{position:absolute;inset:-8% 0;z-index:0;will-change:transform}
.hero .scene{position:absolute;inset:0}
.hero .scrim{position:absolute;inset:0;z-index:1;pointer-events:none;
  background:linear-gradient(96deg,rgba(3,5,10,.92) 0%,rgba(3,5,10,.62) 36%,rgba(3,5,10,.12) 60%,transparent 76%),
    linear-gradient(transparent 58%,rgba(6,7,10,.35) 86%,rgba(6,7,10,.75) 100%)}
.hero .wrap{position:relative;z-index:4;width:100%;
  padding-bottom:clamp(48px,9vh,104px);padding-top:150px}
.hero-grid{display:block}
.hero h1{max-width:16ch;text-shadow:0 30px 70px rgba(0,0,0,.7)}
.hero .lede{color:rgba(255,255,255,.72);max-width:34ch}
.pill{display:inline-flex;align-items:center;gap:11px;padding:8px 17px;border-radius:999px;
  border:1px solid rgba(255,255,255,.16);background:rgba(10,11,14,.42);color:#e6e3dd;
  font-family:Consolas,ui-monospace,monospace;font-size:10.5px;letter-spacing:.18em;
  text-transform:uppercase;margin-bottom:26px;
  backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px)}
.hero-cta{display:flex;gap:14px;flex-wrap:wrap;align-items:center}
.hero-stats{display:flex;gap:clamp(26px,5vw,64px);flex-wrap:wrap;
  margin-top:clamp(30px,5vh,54px);padding-top:26px;border-top:1px solid var(--line)}
.stat b{display:block;font-family:var(--disp);font-weight:900;font-size:clamp(22px,2.6vw,34px);
  letter-spacing:-.04em;color:#fff;text-transform:uppercase}
.stat span{font-family:Consolas,ui-monospace,monospace;font-size:10px;color:var(--dim,#9a978f);
  text-transform:uppercase;letter-spacing:.2em}
.hero-note{font-size:13.5px;color:var(--muted);margin-top:16px}

/* 图上浮动元素：一直动 */
.hero-chip{position:absolute;z-index:4;display:flex;flex-direction:column;gap:2px;padding:12px 16px;
  border-radius:14px;background:rgba(10,11,14,.5);border:1px solid rgba(255,255,255,.18);
  backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);font-size:11.5px;color:#c9c6c0;
  box-shadow:0 24px 50px -30px rgba(0,0,0,1);opacity:0;
  animation:chipIn .9s cubic-bezier(.16,.9,.2,1) forwards,float 8s ease-in-out infinite}
.hero-chip b{color:#fff;font-family:Consolas,ui-monospace,monospace;font-size:11.5px;
  letter-spacing:.14em;text-transform:uppercase}
.hero-chip.c1{top:22%;right:7%;animation-delay:.7s,1.4s}
.hero-chip.c2{bottom:25%;right:35%;animation-delay:1s,2.2s}
@keyframes chipIn{from{opacity:0;transform:translateY(18px)}to{opacity:1;transform:translateY(0)}}
@keyframes float{0%,100%{transform:translateY(0)}50%{transform:translateY(-12px)}}
.hot{position:absolute;z-index:4;width:12px;height:12px;border-radius:50%;background:var(--accent);
  animation:pulse 2.8s ease-out infinite}
.hot::after{content:attr(data-l);position:absolute;left:22px;top:-3px;
  font-family:Consolas,ui-monospace,monospace;font-size:10px;letter-spacing:.16em;
  color:rgba(255,255,255,.78);text-transform:uppercase;white-space:nowrap}
@keyframes pulse{0%{box-shadow:0 0 0 0 rgba(255,138,43,.55)}
  70%{box-shadow:0 0 0 20px rgba(255,138,43,0)}100%{box-shadow:0 0 0 0 rgba(255,138,43,0)}}
.hero-cap{position:absolute;right:clamp(20px,4vw,48px);bottom:34px;z-index:5;
  font-family:Consolas,ui-monospace,monospace;font-size:9.5px;letter-spacing:.28em;
  text-transform:uppercase;color:rgba(255,255,255,.55)}

/* ---------- 内页大图页头（所有内页第一屏自动套用） ---------- */
main>section:first-child:not(.hero){position:relative;overflow:hidden;
  padding-top:clamp(140px,17vh,190px)!important}
main>section:first-child:not(.hero)::before{content:"";position:absolute;inset:0;z-index:0;
  background-color:#06070a;background-repeat:no-repeat;
  background-image:
    url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 1440 420' preserveAspectRatio='none'%3E%3Cpath d='M0 250 L120 206 L240 244 L380 180 L520 228 L660 172 L800 216 L940 164 L1080 212 L1220 176 L1340 214 L1440 190 L1440 420 L0 420 Z' fill='%23141017'/%3E%3Cpath d='M0 306 L140 272 L280 310 L440 258 L600 300 L760 250 L920 294 L1080 248 L1240 292 L1440 264 L1440 420 L0 420 Z' fill='%23070709'/%3E%3C/svg%3E"),
    radial-gradient(30% 30% at 72% 78%, rgba(255,196,120,.4), transparent 70%),
    linear-gradient(#03050a 0%,#081226 20%,#132445 42%,#3b4a63 62%,#a06547 78%,#241a12 90%,#07070a 100%);
  background-size:100% 46%,cover,cover;background-position:center bottom,center,center}
main>section:first-child:not(.hero)::after{content:"";position:absolute;inset:0;z-index:0;
  pointer-events:none;
  background:radial-gradient(120% 100% at 40% 40%,transparent 30%,rgba(0,0,0,.62) 100%),
    linear-gradient(transparent 40%,rgba(6,7,10,.75) 80%,var(--ink) 100%),
    radial-gradient(rgba(255,255,255,.07) 1px,transparent 1.5px) 0 0/3px 3px}
main>section:first-child:not(.hero)>.wrap{position:relative;z-index:2}

/* ===========================================================
   TRUST —— 琥珀底巨型走马灯
   =========================================================== */
.trust{background:var(--accent);color:#0a0b0d;padding:0;border:0;overflow:hidden}
.trust .wrap{max-width:none;padding:0}
/* li 用 margin-right 而不是 flex gap：保证 2 份内容等宽，-50% 无缝 */
.trust ul{list-style:none;margin:0;padding:16px 0;display:flex;gap:0;width:max-content;
  animation:slide 30s linear infinite;will-change:transform}
.trust:hover ul{animation-play-state:paused}
.trust li{display:flex;align-items:center;margin-right:56px;
  font-family:var(--disp);font-weight:900;font-size:clamp(26px,4.6vw,60px);letter-spacing:-.03em;
  text-transform:uppercase;white-space:nowrap;line-height:1}
.trust li:nth-child(even){-webkit-text-stroke:2px #0a0b0d;color:transparent}
@keyframes slide{to{transform:translateX(-50%)}}
.dot{display:none}

/* ---------- sections ---------- */
section{padding:clamp(64px,9vw,120px) 0;position:relative}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;
  gap:24px;margin-bottom:clamp(28px,4vw,52px);flex-wrap:wrap}

/* ---------- product grid / cards ---------- */
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(268px,1fr));gap:clamp(16px,2vw,26px)}
.card{border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;
  display:flex;flex-direction:column;background:var(--ink-2);box-shadow:var(--sh-1);
  transition:transform .55s cubic-bezier(.2,.8,.2,1),box-shadow .55s,border-color .4s}
.card:hover{transform:translateY(-8px);box-shadow:var(--sh-2);border-color:var(--line-2)}
.thumb{aspect-ratio:4/3.2;position:relative;display:flex;align-items:center;justify-content:center;
  overflow:hidden;background-color:#06070a;background-repeat:no-repeat;background-size:cover;
  background-position:center;
  background-image:
    radial-gradient(36% 36% at 46% 74%, rgba(255,196,120,.5), rgba(255,138,43,.14) 44%, transparent 74%),
    radial-gradient(50% 8% at 24% 62%, rgba(255,206,160,.22), transparent 72%),
    linear-gradient(#03050a 0%,#081226 18%,#122446 38%,#3a4a66 58%,#a86b47 76%,#241a12 90%,#07070a 100%)}
.thumb.t-b{filter:hue-rotate(-16deg) saturate(.92)}
.thumb.t-c{filter:brightness(.82)}
.thumb.t-d{filter:saturate(1.2) brightness(.9)}
.thumb::before{content:"";position:absolute;inset:0;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 1440 420' preserveAspectRatio='none'%3E%3Cpath d='M0 250 L160 208 L320 246 L480 186 L640 232 L800 178 L960 222 L1120 172 L1280 216 L1440 190 L1440 420 L0 420 Z' fill='%23120f16'/%3E%3Cpath d='M0 308 L180 274 L360 312 L540 262 L720 304 L900 254 L1080 298 L1260 250 L1440 288 L1440 420 L0 420 Z' fill='%23070709'/%3E%3C/svg%3E");
  background-size:cover;background-position:center bottom;background-repeat:no-repeat}
.thumb::after{content:"";position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(120% 100% at 42% 44%,transparent 32%,rgba(0,0,0,.55) 100%),
    radial-gradient(rgba(255,255,255,.08) 1px,transparent 1.5px) 0 0/3px 3px}
/* 实物：斜放天线 */
.shape{position:relative;z-index:2;width:56%;aspect-ratio:1.62;border-radius:14px;
  transform:rotate(-13deg) skewY(-5deg);
  background:linear-gradient(158deg,#49505f,#242a35 38%,#12151c 68%,#0a0c11);
  box-shadow:inset 0 2px 1px rgba(255,196,132,.45),inset 0 -3px 0 rgba(0,0,0,.6),
    0 34px 60px -24px rgba(0,0,0,.95);
  transition:transform .6s cubic-bezier(.2,.8,.2,1)}
.shape::after{content:"";position:absolute;left:6%;top:5%;right:6%;height:26%;border-radius:50%;
  background:linear-gradient(rgba(255,236,214,.4),transparent)}
.card:hover .thumb .shape,.thumb:hover .shape{transform:rotate(-13deg) skewY(-5deg) scale(1.06)}
.thumb img{width:100%;height:100%;object-fit:cover;position:relative;z-index:2}
.badge{position:absolute;top:14px;left:14px;z-index:3;background:rgba(6,7,10,.68);color:#fff;
  font-family:Consolas,ui-monospace,monospace;font-size:9.5px;letter-spacing:.16em;text-transform:uppercase;
  padding:6px 12px;border-radius:999px;border:1px solid var(--line);backdrop-filter:blur(8px)}
.badge.sale{background:var(--accent);color:#1a0f04;border-color:transparent;font-weight:700}
.card-body{padding:18px 19px 22px;display:flex;flex-direction:column;gap:11px;flex:1}
.card-body h3{margin:0;font-size:16px}
.card-body p{margin:0;color:var(--muted);font-size:14px;line-height:1.62}
.price-row{display:flex;align-items:baseline;gap:10px;margin-top:auto;padding-top:6px}
.price{font-family:var(--disp);font-weight:900;font-size:22px;letter-spacing:-.03em}
.compare{color:var(--muted);text-decoration:line-through;font-size:14px}
.save{color:var(--accent);font-weight:700;font-size:13px}
.card .note{margin:0;text-align:center}

/* ---------- split / panel / checks ---------- */
.split{display:grid;grid-template-columns:1fr 1fr;gap:clamp(28px,4vw,58px);align-items:center}
.split ul.checks,.checks{list-style:none;padding:0;margin:24px 0 0;display:grid;gap:15px}
.checks li{display:flex;gap:12px;align-items:flex-start;font-size:15px;line-height:1.65;color:rgba(255,255,255,.8)}
.checks .tick{color:var(--accent);font-weight:900;line-height:1.5;flex:none}
.panel{background:linear-gradient(160deg,rgba(255,255,255,.05),rgba(255,255,255,.015));
  border:1px solid var(--line);border-radius:var(--r-lg);padding:clamp(26px,3.5vw,44px);
  backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px)}

/* spec table */
.spec-table{width:100%;border-collapse:collapse;font-size:15px}
.spec-table th{text-align:left;font-weight:400;color:var(--muted);font-size:13.5px;
  width:42%;padding:14px 0;border-bottom:1px solid var(--line);vertical-align:top;
  font-family:Consolas,ui-monospace,monospace;letter-spacing:.06em}
.spec-table td{padding:14px 0;border-bottom:1px solid var(--line);font-weight:600;vertical-align:top}
.spec-table tr:last-child th,.spec-table tr:last-child td{border-bottom:0}

/* ---------- guides ---------- */
.guide-list{display:grid;gap:16px}
.guide{display:grid;grid-template-columns:124px 1fr auto;gap:26px;align-items:center;
  border:1px solid var(--line);border-radius:var(--r);padding:16px 24px 16px 16px;
  background:var(--ink-2);box-shadow:var(--sh-1);
  transition:transform .45s cubic-bezier(.2,.8,.2,1),box-shadow .45s,border-color .4s}
.guide:hover{transform:translateX(6px);border-color:var(--line-2);box-shadow:var(--sh-2)}
.guide .gthumb{aspect-ratio:1;border-radius:12px;position:relative;overflow:hidden;
  display:flex;align-items:center;justify-content:center;
  background-color:#06070a;background-repeat:no-repeat;background-size:cover;background-position:center;
  background-image:
    radial-gradient(40% 40% at 50% 72%, rgba(255,196,120,.45), transparent 72%),
    linear-gradient(#03050a 0%,#081226 20%,#132445 46%,#4a4a5e 70%,#a86b47 84%,#241a12 94%,#07070a 100%)}
.gthumb b{position:relative;z-index:2;color:rgba(255,255,255,.9);
  font-family:var(--disp);font-weight:900;font-size:26px;letter-spacing:-.04em}
.guide h3{margin:0 0 6px;font-size:16.5px}
.guide p{margin:0;color:var(--muted);font-size:14px;line-height:1.62}
.gmeta{font-family:Consolas,ui-monospace,monospace;font-size:10px;color:var(--accent-2);
  letter-spacing:.2em;text-transform:uppercase;margin-bottom:9px}
.guide::after{content:"→";color:var(--accent);font-weight:800;font-size:18px;opacity:0;
  transform:translateX(-8px);transition:.35s}
.guide:hover::after{opacity:1;transform:translateX(0)}

/* ---------- article / prose ---------- */
.prose{max-width:730px;margin:0 auto;font-size:17px;line-height:1.78;color:rgba(255,255,255,.85)}
.prose h2,.prose h3{font-family:var(--font);font-weight:800;letter-spacing:-.02em;text-transform:none}
.prose h2{margin:52px 0 16px;font-size:clamp(22px,2.4vw,32px)}
.prose h3{margin:34px 0 10px;font-size:18px}
.prose p{margin:0 0 19px}
.prose ul,.prose ol{margin:0 0 19px;padding-left:22px}
.prose li{margin-bottom:9px}
.prose table{width:100%;border-collapse:collapse;margin:0 0 24px;font-size:15px}
.prose th,.prose td{border:1px solid var(--line);padding:11px 13px;text-align:left}
.prose th{background:rgba(255,255,255,.04);font-weight:700}
.prose .callout{background:var(--accent-soft);border-left:3px solid var(--accent);
  padding:18px 22px;border-radius:0 14px 14px 0;margin:0 0 24px;font-size:16px}
.crumbs{font-family:Consolas,ui-monospace,monospace;font-size:10.5px;color:var(--muted);
  margin-bottom:26px;letter-spacing:.16em;text-transform:uppercase}
.crumbs a:hover{color:var(--accent-2)}
.article-head{max-width:730px;margin:0 auto 38px}
.article-head h1{font-size:clamp(30px,4.6vw,58px)}
.byline{font-family:Consolas,ui-monospace,monospace;font-size:10.5px;color:var(--muted);
  letter-spacing:.16em;text-transform:uppercase}

/* ---------- faq ---------- */
.faq{max-width:780px;margin:0 auto}
.faq details{border-bottom:1px solid var(--line);padding:22px 0}
.faq details:first-of-type{border-top:1px solid var(--line)}
.faq summary{font-weight:700;cursor:pointer;font-size:16.5px;list-style:none;
  display:flex;justify-content:space-between;gap:18px;letter-spacing:-.015em;transition:color .25s}
.faq summary:hover{color:var(--accent-2)}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";color:var(--accent);font-weight:400;font-size:20px;line-height:1}
.faq details[open] summary::after{content:"–"}
.faq p{margin:13px 0 0;color:var(--muted)}

/* ---------- forms ---------- */
.field{width:100%;padding:14px 16px;border:1px solid var(--line-2);border-radius:12px;
  font:inherit;font-size:15px;color:var(--text);background:rgba(255,255,255,.04);margin-top:6px;
  transition:border-color .25s,box-shadow .25s}
.field:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 4px rgba(255,138,43,.16)}
.field::placeholder{color:rgba(255,255,255,.42)}
textarea.field{resize:vertical;min-height:130px}
label.lbl{font-family:Consolas,ui-monospace,monospace;font-size:10.5px;letter-spacing:.18em;
  text-transform:uppercase;color:var(--muted)}

/* ---------- newsletter（大图带 + 巨型字） ---------- */
.news{position:relative;overflow:hidden;border-radius:var(--r-lg);padding:clamp(40px,6vw,80px) clamp(22px,4vw,56px);
  text-align:center;border:1px solid var(--line);
  background-color:#06070a;background-repeat:no-repeat;background-size:cover;background-position:center;
  background-image:
    url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 1440 420' preserveAspectRatio='none'%3E%3Cpath d='M0 262 L160 216 L320 254 L480 196 L640 240 L800 188 L960 232 L1120 182 L1280 226 L1440 200 L1440 420 L0 420 Z' fill='%23120f16'/%3E%3Cpath d='M0 320 L180 288 L360 322 L540 274 L720 314 L900 266 L1080 308 L1260 262 L1440 300 L1440 420 L0 420 Z' fill='%23070709'/%3E%3C/svg%3E"),
    radial-gradient(46% 60% at 50% 96%, rgba(255,186,104,.42), transparent 72%),
    linear-gradient(#03050a 0%,#081226 22%,#132445 48%,#5c4a52 76%,#a86b47 88%,#0d0c10 100%)}
.news>*{position:relative;z-index:2}
.news h2{color:#fff;font-size:clamp(30px,5.4vw,76px)}
.news em{font-style:normal;-webkit-text-stroke:2px var(--accent);color:transparent}
.news p{color:rgba(255,255,255,.74);margin:18px auto 30px;max-width:46ch}
.news form{display:flex;gap:11px;max-width:470px;margin:0 auto;flex-wrap:wrap;justify-content:center}
.news input{flex:1;min-width:220px;padding:16px 18px;border-radius:999px;
  border:1px solid rgba(255,255,255,.22);background:rgba(10,11,14,.5);color:#fff;
  font:inherit;transition:border-color .25s,box-shadow .25s}
.news input:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 4px rgba(255,138,43,.18)}
.news input::placeholder{color:rgba(255,255,255,.5)}

/* ---------- footer ---------- */
footer{border-top:1px solid var(--line);padding:clamp(52px,7vw,96px) 0 34px;font-size:14.5px;
  background:#06070a;position:relative;overflow:hidden}
.foot-giant{font-size:clamp(48px,15vw,220px);line-height:.82;color:var(--text);margin:0 0 clamp(40px,6vw,76px);
  letter-spacing:-.05em}
.foot-giant em{font-style:normal;-webkit-text-stroke:3px var(--accent);color:transparent}
.f-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1fr;gap:clamp(22px,3vw,44px);
  padding-top:34px;border-top:1px solid var(--line)}
.f-grid h4{margin:0 0 16px;font-family:Consolas,ui-monospace,monospace;font-size:10px;
  letter-spacing:.24em;text-transform:uppercase;color:var(--muted);font-weight:400}
.f-grid ul{list-style:none;padding:0;margin:0;display:grid;gap:11px}
.f-grid a{color:rgba(255,255,255,.78);transition:color .25s}
.f-grid a:hover{color:var(--accent-2)}
.f-about{color:var(--muted);max-width:34ch;margin:16px 0 0;line-height:1.68}
.f-bottom{border-top:1px solid var(--line);margin-top:clamp(36px,5vw,60px);padding-top:24px;
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-family:Consolas,ui-monospace,monospace;font-size:10px;letter-spacing:.16em;
  text-transform:uppercase;color:var(--muted)}
.f-bottom a:hover{color:var(--accent-2)}
footer .brand{font-size:13px}

/* ---------- toast ---------- */
.toast{position:fixed;left:50%;bottom:28px;transform:translateX(-50%) translateY(24px);
  background:rgba(10,11,14,.96);color:#fff;padding:14px 22px;border-radius:14px;
  border:1px solid var(--line);font-size:14px;
  box-shadow:0 24px 50px -20px rgba(0,0,0,.9);
  opacity:0;pointer-events:none;transition:.35s cubic-bezier(.2,.8,.2,1);z-index:90;
  max-width:90vw;text-align:center}
.toast.on{opacity:1;transform:translateX(-50%) translateY(0)}

/* ---------- reveal on scroll ---------- */
.anim [data-reveal]{opacity:0;transform:translateY(26px);
  transition:opacity .9s ease,transform 1s cubic-bezier(.16,.9,.2,1)}
.anim [data-reveal].in{opacity:1;transform:none}

/* ---------- responsive ---------- */
@media (max-width:1000px){
  .split{grid-template-columns:1fr;gap:34px}
  .f-grid{grid-template-columns:1fr 1fr}
  .hero{min-height:min(100svh,760px)}
  .hero-chip.c2{display:none}
}
@media (max-width:760px){
  .announce{font-size:9px;letter-spacing:.12em;line-height:1.6;padding:9px 16px}
  .hero{min-height:min(100svh,880px)}
  .hero .wrap{padding-top:130px;padding-bottom:34px}
  .hero-cta{display:grid;grid-template-columns:1fr;gap:11px}
  .hero-cta .btn{width:100%}
  .hero-stats{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;margin-top:26px}
  .stat b{font-size:19px}
  .stat span{font-size:9px;letter-spacing:.1em;line-height:1.5;display:block}
  h1{font-size:clamp(34px,10.5vw,54px)}
  .hero-cap{display:none}
  .nav{display:none;position:absolute;top:100%;left:0;right:0;flex-direction:column;gap:0;
    padding:8px 24px 18px;background:rgba(6,7,10,.96);border-bottom:1px solid var(--line);
    backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px)}
  .nav.open{display:flex}
  .nav a{padding:14px 0;border-bottom:1px solid var(--line)}
  .nav a:last-child{border-bottom:0}
  .burger{display:block;margin-left:auto}
  .hdr .btn-sm{display:none}
  .guide{grid-template-columns:1fr;padding:18px}
  .guide .gthumb{max-width:120px}
  .guide::after{display:none}
  .f-grid{grid-template-columns:1fr}
  .hero-chip,.hot{display:none}
  .hero-stats{gap:24px}
  main>section:first-child:not(.hero){padding-top:126px!important}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *{animation:none!important;transition:none!important}
  .anim [data-reveal]{opacity:1;transform:none}
  .hero-chip{opacity:1}
}
@media print{
  #shell-top,footer,.news,.hero-cta,.trust{display:none}
  body{background:#fff;color:#000}
}