/* ============================================================
   PortChannel Zero — dark futuristic redesign
   近黑背景 / 细网格 / 超大白字 / 彩色漂浮科技元素 / 装配参考线
   ============================================================ */
:root{
  --bg:#0a0a0c;
  --bg-2:#101014;
  --bg-3:#14141a;
  --fg:#f4f4f6;
  --fg-dim:#a9a9b6;
  --fg-faint:#6b6b7a;
  --accent:#ea580c;
  --accent-2:#ff7a33;
  --cyan:#22d3ee;
  --magenta:#e879f9;
  --green:#4ade80;
  --blue:#3b82f6;
  --yellow:#facc15;
  --red:#ef4444;
  --line:rgba(255,255,255,.08);
  --card:rgba(255,255,255,.035);
  --card-border:rgba(255,255,255,.1);
  --font-head:"Space Grotesk","Noto Sans SC",system-ui,sans-serif;
  --font-body:"Noto Sans SC","Space Grotesk",system-ui,sans-serif;
  --font-mono:"IBM Plex Mono",ui-monospace,monospace;
  --r:14px;
  --sp-header:72px;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;scroll-padding-top:84px;color-scheme:dark}
body{
  background:var(--bg);color:var(--fg);
  font-family:var(--font-body);font-weight:300;line-height:1.7;
  overflow-x:hidden;-webkit-font-smoothing:antialiased;
}
img,svg{display:block;max-width:100%}
a{color:inherit}
::selection{background:var(--accent);color:#fff}

.wrap{max-width:1180px;margin:0 auto;padding:0 24px}

/* ---------- 背景网格 ---------- */
.bg-grid{
  position:fixed;inset:0;z-index:0;pointer-events:none;
  background-image:
    linear-gradient(rgba(255,255,255,.035) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.035) 1px,transparent 1px);
  background-size:56px 56px;
  mask-image:radial-gradient(ellipse 90% 70% at 50% 0%,#000 40%,transparent 100%);
  -webkit-mask-image:radial-gradient(ellipse 90% 70% at 50% 0%,#000 40%,transparent 100%);
}
.bg-glow{
  position:fixed;inset:0;z-index:0;pointer-events:none;
  background:
    radial-gradient(600px 400px at 15% 10%,rgba(234,88,12,.10),transparent 70%),
    radial-gradient(700px 500px at 85% 25%,rgba(59,130,246,.09),transparent 70%),
    radial-gradient(500px 400px at 60% 85%,rgba(34,211,238,.06),transparent 70%);
}

/* ---------- skip link ---------- */
.skip-link{
  position:absolute;left:16px;top:-48px;z-index:200;
  background:var(--accent);color:#fff;padding:10px 16px;border-radius:8px;
  font-size:14px;text-decoration:none;transition:top .2s;
}
.skip-link:focus{top:12px}

/* ---------- 焦点 ---------- */
:focus-visible{outline:2px solid var(--cyan);outline-offset:3px;border-radius:4px}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;gap:8px;
  font-family:var(--font-head);font-weight:600;font-size:15px;
  padding:12px 22px;min-height:44px;border-radius:10px;border:1px solid transparent;
  text-decoration:none;cursor:pointer;white-space:nowrap;transition:transform .2s ease,background .2s,border-color .2s,box-shadow .2s;
}
.btn:hover{transform:translateY(-1px)}
.btn-primary{background:var(--accent);color:#fff;box-shadow:0 8px 28px rgba(234,88,12,.35)}
.btn-primary:hover{background:var(--accent-2);box-shadow:0 10px 34px rgba(234,88,12,.5)}
.btn-ghost{background:rgba(255,255,255,.06);color:var(--fg);border-color:var(--line)}
.btn-ghost:hover{background:rgba(255,255,255,.12)}
.btn-outline{background:transparent;color:var(--fg);border-color:rgba(255,255,255,.25)}
.btn-outline:hover{border-color:var(--accent);color:var(--accent-2)}
.btn-lg{padding:15px 30px;font-size:16px;min-height:48px}
.btn-block{width:100%;justify-content:center}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:100;height:var(--sp-header);
  background:rgba(10,10,12,.72);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
}
.header-inner{display:flex;align-items:center;gap:28px;height:var(--sp-header)}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;flex-shrink:0}
.bm-bg{fill:#1a1a20}
.bm-p{fill:var(--accent)}
.bm-dot{fill:var(--cyan)}
.brand-word{font-family:var(--font-mono);font-size:14px;font-weight:500;letter-spacing:.14em}
.brand-word em{font-style:normal;color:var(--accent-2)}
.main-nav{display:flex;gap:6px;margin-left:8px}
.main-nav a{
  text-decoration:none;color:var(--fg-dim);font-size:14.5px;
  padding:10px 14px;border-radius:8px;transition:color .2s,background .2s;min-height:44px;display:inline-flex;align-items:center;
}
.main-nav a:hover,.main-nav a:focus-visible{color:var(--fg);background:rgba(255,255,255,.06)}
.header-actions{margin-left:auto;display:flex;align-items:center;gap:10px}
.header-actions .btn{padding:10px 18px;font-size:14px;min-height:44px}
.menu-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--line);border-radius:10px;
  background:rgba(255,255,255,.05);cursor:pointer;flex-direction:column;align-items:center;justify-content:center;gap:5px;
}
.menu-toggle span{display:block;width:18px;height:2px;background:var(--fg);transition:transform .25s,opacity .25s}
.menu-toggle[aria-expanded="true"] span:first-child{transform:translateY(3.5px) rotate(45deg)}
.menu-toggle[aria-expanded="true"] span:last-child{transform:translateY(-3.5px) rotate(-45deg)}

/* ---------- eyebrow ---------- */
.eyebrow{
  font-family:var(--font-mono);font-size:12px;letter-spacing:.22em;color:var(--accent-2);
  display:flex;align-items:center;gap:10px;text-transform:uppercase;
}
.eb-dot{width:8px;height:8px;border-radius:2px;background:var(--accent);box-shadow:0 0 10px rgba(234,88,12,.8)}

/* ---------- HERO ---------- */
.hero{position:relative;z-index:1;padding:calc(var(--sp-header) + 64px) 0 110px;min-height:92vh;display:flex;flex-direction:column;justify-content:center}
.hero-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:56px;align-items:center}
.hero-title{
  font-family:var(--font-head);font-weight:700;line-height:1.08;letter-spacing:-.02em;
  font-size:clamp(2.6rem,6.5vw,4.6rem);margin:22px 0;
  display:flex;flex-direction:column;
}
.hero-title .line{display:block}
.hero-title .dim{color:var(--fg-faint)}
.hero-title .hl{color:var(--fg);position:relative;white-space:nowrap}
.hero-title .hl::after{
  content:"";position:absolute;left:0;right:0;bottom:.04em;height:3px;
  background:linear-gradient(90deg,var(--accent),var(--cyan));
  box-shadow:0 0 14px rgba(234,88,12,.5);
}
.hero-sub{color:var(--fg-dim);font-size:1.06rem;max-width:34em;margin-bottom:32px}
.hero-cta{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:26px}
.hero-note{display:flex;align-items:center;gap:8px;color:var(--fg-faint);font-size:13.5px}
.hero-note svg{color:var(--green)}

/* ---------- 装配参考线 ---------- */
.guides{position:absolute;inset:0;z-index:0;pointer-events:none}
.guide{position:absolute;background:rgba(239,68,68,.5)}
.guide-v{top:0;bottom:0;width:1px}
.guide-h{left:0;right:0;height:1px}
.guide.blue{background:rgba(59,130,246,.55)}
.guide-handle{position:absolute;width:9px;height:9px;border:1.5px solid;background:#0a0a0c;transform:translate(-50%,-50%)}
.guide-handle.red{border-color:var(--red)}
.guide-handle.blue{border-color:var(--blue)}
.anim .guide-v{transform-origin:top;animation:gy 1s .3s cubic-bezier(.2,.8,.2,1) both}
.anim .guide-h{transform-origin:left;animation:gx 1s .5s cubic-bezier(.2,.8,.2,1) both}
@keyframes gy{from{transform:scaleY(0)}to{transform:scaleY(1)}}
@keyframes gx{from{transform:scaleX(0)}to{transform:scaleX(1)}}

/* ---------- 漂浮光标 & 字形 ---------- */
.cursors{position:absolute;inset:0;z-index:2;pointer-events:none;overflow:hidden}
.cur{width:16px;height:16px;fill:var(--accent);position:absolute;opacity:.85;filter:drop-shadow(0 0 6px rgba(234,88,12,.5))}
.cur.c-cyan{fill:var(--cyan);filter:drop-shadow(0 0 6px rgba(34,211,238,.5))}
.cur.c-magenta{fill:var(--magenta);filter:drop-shadow(0 0 6px rgba(232,121,249,.5))}
.cur.c-green{fill:var(--green);filter:drop-shadow(0 0 6px rgba(74,222,128,.5))}
.cur.c-blue{fill:var(--blue);filter:drop-shadow(0 0 6px rgba(59,130,246,.5))}
.cur1{top:18%;left:12%;animation:drift1 9s ease-in-out infinite alternate}
.cur2{top:62%;left:22%;animation:drift2 11s ease-in-out infinite alternate}
.cur3{top:26%;right:18%;animation:drift3 10s ease-in-out infinite alternate}
.cur4{top:74%;right:26%;animation:drift1 13s ease-in-out infinite alternate-reverse}
.cur5{top:48%;left:55%;animation:drift2 12s ease-in-out infinite alternate-reverse}
.glyph{position:absolute;font-family:var(--font-mono);font-size:13px;color:var(--accent);opacity:.6;animation:drift3 14s ease-in-out infinite alternate}
.glyph.c-cyan{color:var(--cyan)}.glyph.c-magenta{color:var(--magenta)}
.glyph.c-green{color:var(--green)}.glyph.c-yellow{color:var(--yellow)}.glyph.c-blue{color:var(--blue)}
.g1{top:12%;left:40%}.g2{top:82%;left:8%;animation-delay:-3s}.g3{top:8%;right:32%;animation-delay:-5s}
.g4{top:36%;right:6%;animation-delay:-7s}.g5{top:88%;left:48%;animation-delay:-2s}.g6{top:16%;left:64%;animation-delay:-9s}
.g7{top:58%;right:12%;animation-delay:-6s}.g8{top:70%;left:70%;animation-delay:-4s}
.g9{top:44%;left:4%;animation-delay:-8s}.g10{top:92%;right:40%;animation-delay:-10s}
@keyframes drift1{from{transform:translate(0,0) rotate(-8deg)}to{transform:translate(34px,-26px) rotate(10deg)}}
@keyframes drift2{from{transform:translate(0,0)}to{transform:translate(-30px,20px)}}
@keyframes drift3{from{transform:translate(0,0) rotate(0)}to{transform:translate(22px,-30px) rotate(14deg)}}

/* ---------- 云计算漂浮装饰 SVG ---------- */
.floaters{position:absolute;inset:0;z-index:1;pointer-events:none}
.floater{position:absolute;width:64px;height:64px;opacity:.9}
.s-stroke{fill:none;stroke:currentColor;stroke-width:2.5}
.s-line{fill:none;stroke:currentColor;stroke-width:2;opacity:.6}
.s-fill-dim{fill:currentColor;opacity:.28}
.s-dot{fill:currentColor}
.c-orange{color:var(--accent-2)}.c-cyan{color:var(--cyan)}.c-magenta{color:var(--magenta)}
.c-green{color:var(--green)}.c-blue{color:var(--blue)}.c-yellow{color:var(--yellow)}
.spin-slow{transform-origin:32px 32px;animation:spin 22s linear infinite}
.spin-rev{transform-origin:32px 32px;animation:spin 30s linear infinite reverse}
@keyframes spin{to{transform:rotate(360deg)}}
.f1{top:14%;right:6%;animation:bob1 8s ease-in-out infinite alternate}
.f2{top:8%;left:30%;width:52px;animation:bob2 10s ease-in-out infinite alternate}
.f3{bottom:8%;right:30%;left:auto;width:56px;opacity:.6;animation:bob1 12s ease-in-out infinite alternate-reverse}
.f4{bottom:10%;right:20%;width:56px;animation:bob2 9s ease-in-out infinite alternate}
.f5{top:52%;left:44%;width:48px;opacity:.55;animation:bob1 11s ease-in-out infinite alternate-reverse}
.f6{top:34%;left:2%;width:44px;opacity:.6;animation:bob2 13s ease-in-out infinite alternate-reverse}
@keyframes bob1{from{transform:translateY(0)}to{transform:translateY(-18px)}}
@keyframes bob2{from{transform:translateY(0)}to{transform:translateY(14px)}}

/* ---------- 终端 ---------- */
.hero-term{
  background:rgba(16,16,20,.85);border:1px solid var(--card-border);border-radius:var(--r);
  overflow:hidden;box-shadow:0 24px 70px rgba(0,0,0,.6),0 0 0 1px rgba(34,211,238,.08);
  position:relative;z-index:2;
}
.hero-term::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,var(--accent),var(--cyan),var(--magenta));opacity:.7;
}
.term-bar{display:flex;align-items:center;gap:12px;padding:12px 16px;border-bottom:1px solid var(--line)}
.term-dots{display:flex;gap:6px}
.term-dots i{width:10px;height:10px;border-radius:50%;background:rgba(255,255,255,.15)}
.term-dots i:first-child{background:#ff5f57}.term-dots i:nth-child(2){background:#febc2e}.term-dots i:last-child{background:#28c840}
.term-title{font-family:var(--font-mono);font-size:12.5px;color:var(--fg-faint)}
.term-body{padding:18px 18px 22px;font-family:var(--font-mono);font-size:13.5px;line-height:1.9;min-height:190px}
.t-prompt{color:var(--green);margin-right:8px}
.t-input{color:var(--fg)}
.t-caret{display:inline-block;width:8px;height:1.1em;vertical-align:text-bottom;background:var(--accent);animation:blink 1s steps(1) infinite}
@keyframes blink{50%{opacity:0}}
.term-line{white-space:pre-wrap;word-break:break-all}
.t-ok{color:var(--green)}
.t-info{color:var(--cyan)}
.t-dim{color:var(--fg-faint)}
.t-acc{color:var(--accent-2)}

/* ---------- 滚动提示 ---------- */
.scroll-hint{
  position:absolute;bottom:26px;left:50%;transform:translateX(-50%);z-index:3;
  display:flex;flex-direction:column;align-items:center;gap:8px;
  color:var(--fg-faint);font-size:12px;font-family:var(--font-mono);letter-spacing:.2em;text-decoration:none;
}
.scroll-hint:hover{color:var(--fg-dim)}
.sh-line{width:1px;height:34px;background:linear-gradient(var(--fg-faint),transparent);animation:pulseLine 1.8s ease-in-out infinite}
@keyframes pulseLine{0%,100%{opacity:.4;transform:scaleY(.7)}50%{opacity:1;transform:scaleY(1)}}

/* ---------- 统计 ---------- */
.stats{position:relative;z-index:1;border-top:1px solid var(--line);border-bottom:1px solid var(--line);background:rgba(255,255,255,.02)}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;padding:44px 24px}
.stat{display:flex;flex-direction:column;align-items:center;text-align:center;gap:2px}
.stat-row{display:flex;align-items:baseline;gap:2px;justify-content:center}
.stat-num,.stat-suffix{font-family:var(--font-head);font-weight:700;font-size:clamp(1.9rem,3.4vw,2.7rem);letter-spacing:-.02em}
.stat-suffix{color:var(--accent-2);font-size:clamp(1.2rem,2.4vw,1.7rem)}
.stat-label{color:var(--fg-faint);font-size:13.5px;margin-top:4px}

/* ---------- 通用 section ---------- */
section{position:relative;z-index:1}
.features{padding:110px 0 90px}
.sec-head{max-width:640px;margin-bottom:52px}
.sec-head h2,.cta h2{font-family:var(--font-head);font-weight:700;font-size:clamp(1.9rem,4vw,2.9rem);letter-spacing:-.02em;margin:14px 0 10px;line-height:1.2}
.sec-sub{color:var(--fg-dim)}

/* ---------- 优势卡片 ---------- */
.feat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.feat-card{
  background:var(--card);border:1px solid var(--card-border);border-radius:var(--r);
  padding:26px 22px;transition:border-color .25s,transform .25s,background .25s;
}
.feat-card:hover{border-color:rgba(255,255,255,.22);transform:translateY(-4px);background:rgba(255,255,255,.055)}
.feat-icon{
  width:46px;height:46px;border-radius:12px;display:grid;place-items:center;margin-bottom:18px;
  background:rgba(255,255,255,.05);border:1px solid var(--card-border);
}
.feat-icon svg{width:24px;height:24px}
.feat-card.c-orange .feat-icon{color:var(--accent-2);box-shadow:0 0 24px rgba(234,88,12,.18)}
.feat-card.c-cyan .feat-icon{color:var(--cyan);box-shadow:0 0 24px rgba(34,211,238,.18)}
.feat-card.c-magenta .feat-icon{color:var(--magenta);box-shadow:0 0 24px rgba(232,121,249,.18)}
.feat-card.c-green .feat-icon{color:var(--green);box-shadow:0 0 24px rgba(74,222,128,.18)}
.feat-card h3{font-family:var(--font-head);font-size:1.15rem;font-weight:600;margin-bottom:10px}
.feat-card p{color:var(--fg-dim);font-size:14.5px;margin-bottom:20px}
.feat-stats{list-style:none;display:grid;gap:8px;border-top:1px dashed var(--card-border);padding-top:16px}
.feat-stats li{display:flex;justify-content:space-between;align-items:baseline;font-size:13px}
.feat-stats b{font-family:var(--font-mono);font-weight:500;color:var(--fg);font-size:13.5px}
.feat-stats span{color:var(--fg-faint)}

/* ---------- 产品方案 ---------- */
.plans{padding:90px 0 110px;background:linear-gradient(180deg,transparent,rgba(255,255,255,.02) 30%,transparent)}
.tabs{display:inline-flex;gap:6px;padding:6px;background:rgba(255,255,255,.04);border:1px solid var(--card-border);border-radius:12px;margin-bottom:22px;flex-wrap:wrap}
.tab{
  display:inline-flex;align-items:center;gap:8px;min-height:44px;padding:10px 20px;
  background:transparent;border:none;border-radius:8px;cursor:pointer;
  font-family:var(--font-head);font-weight:600;font-size:14.5px;color:var(--fg-dim);
  transition:color .2s,background .2s;
}
.tab svg{opacity:.6}
.tab:hover{color:var(--fg)}
.tab.is-active{background:var(--accent);color:#fff}
.tab.is-active svg{opacity:1}
.panel-desc{color:var(--fg-dim);font-size:14.5px;margin-bottom:26px;font-family:var(--font-mono)}
.panel-desc::before{content:"// ";color:var(--accent-2)}
.plan-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.plan-card{
  position:relative;background:var(--card);border:1px solid var(--card-border);border-radius:var(--r);
  padding:24px 20px;display:flex;flex-direction:column;gap:14px;
  transition:border-color .25s,transform .25s,background .25s;
}
.plan-card:hover{border-color:rgba(255,255,255,.25);transform:translateY(-4px);background:rgba(255,255,255,.055)}
.plan-card.is-featured{border-color:rgba(234,88,12,.55);box-shadow:0 0 0 1px rgba(234,88,12,.25),0 18px 50px rgba(234,88,12,.12)}
.plan-card.is-featured::before{
  content:"";position:absolute;top:0;left:18px;right:18px;height:1px;
  background:linear-gradient(90deg,transparent,var(--accent),transparent);
}
.plan-card header{display:flex;align-items:center;justify-content:space-between;gap:8px;min-height:24px}
.plan-name{font-family:var(--font-mono);font-size:13.5px;font-weight:500;letter-spacing:.05em;color:var(--fg-dim)}
.plan-badge{
  font-size:11px;font-weight:600;font-family:var(--font-head);padding:3px 9px;border-radius:999px;
  background:rgba(234,88,12,.18);color:var(--accent-2);border:1px solid rgba(234,88,12,.4);
}
.plan-badge.deal{background:rgba(34,211,238,.14);color:var(--cyan);border-color:rgba(34,211,238,.4)}
.plan-price{display:flex;align-items:baseline;gap:3px}
.plan-price .cur{color:var(--accent-2);font-size:1.1rem;font-family:var(--font-head);font-weight:600}
.plan-price .num{font-family:var(--font-head);font-weight:700;font-size:2.15rem;letter-spacing:-.02em}
.plan-price .per{color:var(--fg-faint);font-size:13px}
.plan-specs{list-style:none;display:grid;gap:9px;border-top:1px dashed var(--card-border);padding-top:16px;flex:1}
.plan-specs li{position:relative;padding-left:18px;font-size:13.5px;color:var(--fg-dim)}
.plan-specs li::before{
  content:"";position:absolute;left:0;top:.62em;width:8px;height:2px;background:var(--accent);
}
.panel-more{margin-top:28px;text-align:center}
.panel-more a{
  color:var(--fg-dim);text-decoration:none;font-family:var(--font-mono);font-size:14px;
  padding:12px 20px;display:inline-block;transition:color .2s;
}
.panel-more a:hover{color:var(--accent-2)}

/* ---------- 底部 CTA ---------- */
.cta{padding:110px 0}
.cta-inner{position:relative;text-align:center;padding:70px 24px;max-width:820px}
.cta-inner p{color:var(--fg-dim);margin:12px 0 30px}
.cta-frame i{position:absolute;width:26px;height:26px;border:2px solid var(--accent)}
.cf.tl{top:0;left:0;border-right:none;border-bottom:none;border-radius:6px 0 0 0}
.cf.tr{top:0;right:0;border-left:none;border-bottom:none;border-color:var(--cyan);border-radius:0 6px 0 0}
.cf.bl{bottom:0;left:0;border-right:none;border-top:none;border-color:var(--magenta);border-radius:0 0 0 6px}
.cf.br{bottom:0;right:0;border-left:none;border-top:none;border-color:var(--blue);border-radius:0 0 6px 0}

/* ---------- 页脚 ---------- */
.site-footer{border-top:1px solid var(--line);background:rgba(255,255,255,.02);position:relative;z-index:1}
.footer-inner{display:flex;align-items:center;gap:24px;flex-wrap:wrap;padding:34px 24px}
.footer-brand{display:flex;flex-direction:column;gap:2px}
.footer-tag{font-size:12.5px;color:var(--fg-faint);font-family:var(--font-mono)}
.footer-nav{margin-left:auto;display:flex;gap:8px}
.footer-nav a{
  text-decoration:none;color:var(--fg-dim);font-size:14px;padding:10px 14px;min-height:44px;
  display:inline-flex;align-items:center;border-radius:8px;transition:color .2s;
}
.footer-nav a:hover{color:var(--accent-2)}
.footer-copy{width:100%;color:var(--fg-faint);font-size:12.5px;font-family:var(--font-mono);border-top:1px solid var(--line);padding-top:18px}

/* ---------- 滚动 reveal ---------- */
.reveal{opacity:0;transform:translateY(16px);transition:opacity .45s cubic-bezier(.2,.6,.2,1),transform .45s cubic-bezier(.2,.6,.2,1)}
.reveal.in{opacity:1;transform:none}
.reveal.in-instant{transition:none}
[data-stagger] .reveal.in{transition-delay:var(--d,0s)}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  .feat-grid{grid-template-columns:repeat(2,1fr)}
  .plan-grid{grid-template-columns:repeat(2,1fr)}
  .hero-grid{grid-template-columns:1fr;gap:44px}
  .hero-term{max-width:640px}
  .floater,.glyph{display:none}
}
@media (max-width:720px){
  .main-nav{
    position:fixed;top:var(--sp-header);left:0;right:0;z-index:99;
    flex-direction:column;gap:0;margin:0;padding:10px 16px 18px;
    background:rgba(10,10,12,.97);backdrop-filter:blur(16px);border-bottom:1px solid var(--line);
    display:none;
  }
  .main-nav.open{display:flex}
  .main-nav a{padding:14px;border-radius:10px;font-size:16px}
  .menu-toggle{display:flex}
  .header-actions .btn-ghost{display:none}
  .stats-grid{grid-template-columns:repeat(2,1fr);gap:28px 10px;padding:36px 24px}
  .plan-grid{grid-template-columns:1fr}
  .feat-grid{grid-template-columns:1fr}
  .hero{padding-top:calc(var(--sp-header) + 44px);padding-bottom:80px}
  .guides .guide-v.blue{display:none}
  .cursors .cur3,.cursors .cur4{display:none}
  .footer-nav{margin-left:0}
}

@media (max-width:420px){
  .hero-title{font-size:2.35rem}
  .header-actions .btn-primary{padding:10px 12px;font-size:13px}
  .eyebrow{letter-spacing:.12em}
}

/* ---------- reduced motion ---------- */
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .reveal{opacity:1;transform:none;transition:none}
  .anim .guide,.cur,.glyph,.floater,.spin-slow,.spin-rev,.t-caret,.sh-line,.scroll-hint .sh-line{
    animation:none !important;transform:none !important;opacity:.6;
  }
  .t-caret{animation:none}
  *{transition-duration:.01ms !important}
}