/* ==========================================================
   药聚汇 · PharmConverge — 官网样式（AI 科技版）
   沿用原 VI：品牌蓝 #3385F2 / 深蓝 #1881DC / 浅灰蓝底 #F0F3F8
   WebGL 背景、3D 粒子叙事、玻璃质感；零依赖，系统中文字体栈
   ========================================================== */
:root{
  --brand:#3385f2; --brand-l:#5c9ef5; --brand-ll:#9cc4fb; --brand-d:#1881dc; --brand-dd:#0f5fb0;
  --b50:#f0f6ff; --b100:#e1edfd; --b200:#c4dbfb;
  --brand-50:#f0f6ff; --brand-100:#e1edfd; --brand-200:#c4dbfb;
  --bg:#ffffff; --bg2:#f0f3f8; --bg3:#f7f9fc;
  --ink:#1f2329; --text:#333333; --muted:#575e69; --dim:#9aa1ad;
  --line:#e4e8ef; --line2:#d7dbe0;
  --ok:#17b26a; --warn:#f59e0b; --bad:#f04438;
  --grad:linear-gradient(100deg,var(--brand-d),var(--brand) 55%,#7db4ff);
  --shadow:0 1px 2px rgba(31,35,41,.04),0 12px 32px -16px rgba(51,133,242,.24);
  --shadow-lg:0 2px 6px rgba(31,35,41,.04),0 30px 70px -30px rgba(51,133,242,.4);
  --r:18px; --r-sm:12px;
  --sans:"HarmonyOS Sans SC","MiSans","PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  --mono:"JetBrains Mono","SF Mono","SFMono-Regular",ui-monospace,Menlo,Consolas,monospace;
  --ease:cubic-bezier(.2,.7,.1,1);
  --nav-h:68px;
}
html{scroll-behavior:smooth;scroll-padding-top:var(--nav-h);-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--text);font:400 16px/1.7 var(--sans);-webkit-font-smoothing:antialiased;overflow-x:hidden}
a{color:inherit;text-decoration:none}
img,svg,canvas{display:block;max-width:100%}
h1,h2,h3,h4{margin:0;font-weight:600;letter-spacing:-.02em;line-height:1.2;color:var(--ink)}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
em{font-style:normal}
::selection{background:var(--b200);color:var(--ink)}
:focus-visible{outline:2px solid var(--brand);outline-offset:3px;border-radius:6px}
.wrap{width:min(1200px,100% - 48px);margin-inline:auto}
.glow{background:linear-gradient(100deg,var(--brand-d) 0%,var(--brand) 40%,#7db4ff 60%,var(--brand-d) 100%);background-size:200% 100%;-webkit-background-clip:text;background-clip:text;color:transparent;animation:sheen 6s linear infinite}
@keyframes sheen{to{background-position:-200% 0}}
.dim{color:var(--dim)}

/* global fx */
.progress{position:fixed;left:0;top:0;height:2px;width:100%;transform-origin:0 50%;transform:scaleX(0);background:linear-gradient(90deg,var(--brand-d),var(--brand),#7db4ff);z-index:60}
.cursor-glow{position:fixed;left:0;top:0;width:520px;height:520px;margin:-260px 0 0 -260px;border-radius:50%;pointer-events:none;z-index:0;
  background:radial-gradient(closest-side,rgba(51,133,242,.09),rgba(51,133,242,.035) 50%,transparent);opacity:0;transition:opacity .4s;will-change:transform}
body.has-cursor .cursor-glow{opacity:1}
main,footer{position:relative;z-index:1}

/* buttons */
.btn{position:relative;display:inline-flex;align-items:center;justify-content:center;gap:.5em;height:48px;padding:0 24px;border-radius:12px;font-weight:500;font-size:15px;border:1px solid transparent;cursor:pointer;transition:transform .35s var(--ease),box-shadow .3s,background .3s,border-color .3s,color .3s;white-space:nowrap;font-family:inherit;overflow:hidden}
.btn-sm{height:36px;padding:0 16px;font-size:14px;border-radius:10px}
.btn-primary{background:linear-gradient(135deg,var(--brand-l),var(--brand) 50%,var(--brand-d));color:#fff;box-shadow:0 10px 26px -8px rgba(51,133,242,.65),inset 0 1px 0 rgba(255,255,255,.35)}
.btn-primary::after{content:"";position:absolute;top:0;bottom:0;left:-60%;width:40%;background:linear-gradient(100deg,transparent,rgba(255,255,255,.45),transparent);transform:skewX(-20deg);transition:left .7s var(--ease)}
.btn-primary:hover::after{left:130%}
.btn-primary:hover{box-shadow:0 16px 36px -10px rgba(51,133,242,.75),inset 0 1px 0 rgba(255,255,255,.35)}
.btn-ghost{border-color:var(--line2);color:var(--ink);background:rgba(255,255,255,.7);backdrop-filter:blur(8px)}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand)}
.btn-block{width:100%}
.arr{font-style:normal;transition:transform .3s var(--ease)}
.btn:hover .arr{transform:translateX(3px)}

/* nav */
.nav{position:fixed;inset:0 0 auto;z-index:50;height:var(--nav-h);transition:background .3s,border-color .3s;border-bottom:1px solid transparent}
.nav.scrolled{background:rgba(255,255,255,.72);backdrop-filter:saturate(1.8) blur(18px);-webkit-backdrop-filter:saturate(1.8) blur(18px);border-color:rgba(207,220,242,.7)}
.nav-in{height:100%;display:flex;align-items:center;gap:40px}
.brand img{height:30px;width:auto}
.nav-links{display:flex;gap:28px;font-size:14.5px;color:var(--muted)}
.nav-links a{position:relative;transition:color .2s}
.nav-links a::after{content:"";position:absolute;left:0;right:0;bottom:-6px;height:2px;border-radius:2px;background:var(--brand);transform:scaleX(0);transition:transform .3s var(--ease)}
.nav-links a:hover{color:var(--brand)}
.nav-links a:hover::after,.nav-links a.active::after{transform:scaleX(1)}
.nav-links a.active{color:var(--ink)}
.nav-right{margin-left:auto;display:flex;gap:10px;align-items:center}
.login{position:relative}
.login-menu{position:absolute;right:0;top:calc(100% + 8px);min-width:140px;padding:6px;background:#fff;border:1px solid var(--line);border-radius:12px;box-shadow:var(--shadow-lg);opacity:0;visibility:hidden;transform:translateY(-4px);transition:.2s}
.login.open .login-menu,.login:hover .login-menu{opacity:1;visibility:visible;transform:none}
.login-menu a{display:block;padding:8px 12px;border-radius:8px;font-size:14px}
.login-menu a:hover{background:var(--b50);color:var(--brand)}
.nav-toggle{display:none}

/* reveal */
[data-reveal]{opacity:0;transform:translateY(28px);filter:blur(6px);transition:opacity .9s var(--ease),transform .9s var(--ease),filter .9s var(--ease)}
[data-reveal].in{opacity:1;transform:none;filter:none}

/* ---------- hero ---------- */
.hero{position:relative;min-height:100svh;display:flex;flex-direction:column;justify-content:center;padding-top:var(--nav-h);overflow:hidden;background:linear-gradient(180deg,#eef4ff,#f7faff 60%,#fff)}
.hero-gl{position:absolute;inset:0;width:100%;height:100%}
.hero::before{content:"";position:absolute;inset:0;pointer-events:none;z-index:1;
  background-image:linear-gradient(rgba(51,133,242,.07) 1px,transparent 1px),linear-gradient(90deg,rgba(51,133,242,.07) 1px,transparent 1px);background-size:56px 56px;
  mask-image:radial-gradient(ellipse 75% 70% at 65% 40%,#000 20%,transparent 75%);-webkit-mask-image:radial-gradient(ellipse 75% 70% at 65% 40%,#000 20%,transparent 75%)}
.hero-canvas{position:absolute;inset:0;width:100%;height:100%;z-index:1}
.hero-vignette{position:absolute;inset:auto 0 0;height:160px;background:linear-gradient(0deg,#fff,rgba(255,255,255,0));pointer-events:none;z-index:1}
.hero-in{position:relative;z-index:2;display:grid;grid-template-columns:1.05fr .95fr;gap:40px;align-items:center;padding:64px 0 40px}
.eyebrow{display:inline-flex;align-items:center;gap:10px;padding:6px 14px 6px 10px;border-radius:999px;font-size:13px;color:var(--brand-d);border:1px solid var(--b200);background:rgba(255,255,255,.7);backdrop-filter:blur(8px)}
.pulse{width:8px;height:8px;border-radius:50%;background:var(--brand);box-shadow:0 0 0 0 rgba(51,133,242,.55);animation:pulse 2s infinite}
@keyframes pulse{70%{box-shadow:0 0 0 9px rgba(51,133,242,0)}100%{box-shadow:0 0 0 0 rgba(51,133,242,0)}}
.hero h1{font-size:clamp(42px,6vw,82px);line-height:1.08;letter-spacing:-.035em;margin:24px 0 22px;font-weight:700}
.lead{font-size:clamp(15.5px,1.25vw,18px);color:var(--muted);max-width:32em}
.scr{color:var(--brand);opacity:.75;font-family:var(--mono)}

.ask{position:relative;display:flex;align-items:center;gap:12px;margin-top:34px;max-width:560px;height:60px;padding:0 10px 0 18px;border-radius:16px;
  background:rgba(255,255,255,.85);box-shadow:0 20px 50px -20px rgba(51,133,242,.45),0 0 0 6px rgba(51,133,242,.06);backdrop-filter:blur(12px)}
.ask::before{content:"";position:absolute;inset:0;border-radius:inherit;padding:1.5px;background:conic-gradient(from var(--a,0deg),var(--b200) 0 60%,#7db4ff 75%,var(--brand) 85%,var(--b200) 100%);
  -webkit-mask:linear-gradient(#000 0 0) content-box,linear-gradient(#000 0 0);-webkit-mask-composite:xor;mask-composite:exclude;animation:spin 4s linear infinite;pointer-events:none}
@property --a{syntax:"<angle>";inherits:false;initial-value:0deg}
@keyframes spin{to{--a:360deg}}
.ask-ico{width:20px;height:20px;color:var(--brand);flex:none;animation:twinkle 2.4s infinite}
@keyframes twinkle{50%{opacity:.5;transform:scale(.85) rotate(20deg)}}
.ask-text{font-size:15.5px;color:var(--ink);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.ask-caret{width:2px;height:20px;background:var(--brand);margin-left:-8px;animation:blink 1s steps(1) infinite}
@keyframes blink{50%{opacity:0}}
.ask-go{margin-left:auto;flex:none;width:40px;height:40px;border-radius:11px;display:grid;place-items:center;background:linear-gradient(135deg,var(--brand-l),var(--brand-d));color:#fff;font-size:16px;box-shadow:0 6px 16px -4px rgba(51,133,242,.6)}
.ask-tags{display:flex;flex-wrap:wrap;gap:8px;align-items:center;margin-top:14px;font-size:13px;color:var(--dim)}
.ask-tags i{font-style:normal;padding:3px 10px;border-radius:999px;border:1px solid var(--line2);color:var(--muted);background:rgba(255,255,255,.6);transition:.2s;cursor:default}
.ask-tags i:hover{border-color:var(--brand);color:var(--brand)}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:32px}

.hud{position:relative;height:520px;pointer-events:none}
.hud-card{position:absolute;padding:12px 16px;border-radius:14px;background:rgba(255,255,255,.72);border:1px solid rgba(255,255,255,.9);backdrop-filter:blur(14px) saturate(1.5);-webkit-backdrop-filter:blur(14px) saturate(1.5);box-shadow:0 20px 40px -18px rgba(51,133,242,.4),0 0 0 1px rgba(207,220,242,.6);animation:float 6s ease-in-out infinite;min-width:164px}
.hud-card small{display:block;font-size:11.5px;color:var(--muted)}
.hud-card b{font:700 24px/1.2 var(--mono);color:var(--ink);margin-right:6px}
.hud-card b.warn{color:var(--warn)}
.hud-card span{font-size:12px;color:var(--muted)}
.hud-card svg{width:100%;height:22px;margin-top:4px}
.hud-card svg path{fill:none;stroke:var(--brand);stroke-width:1.8;stroke-dasharray:200;animation:draw 3s var(--ease) infinite}
@keyframes draw{0%{stroke-dashoffset:200}60%,100%{stroke-dashoffset:0}}
.h1{top:6%;right:0;animation-delay:-1s}
.h2{top:60%;left:-2%;animation-delay:-3s}
.h3{bottom:2%;right:6%;animation-delay:-4.5s}
@keyframes float{50%{transform:translateY(-10px)}}

.hero-stats{position:relative;z-index:2;display:grid;grid-template-columns:repeat(5,1fr);margin-bottom:48px;border-radius:18px;background:rgba(255,255,255,.7);backdrop-filter:blur(14px);box-shadow:var(--shadow),0 0 0 1px rgba(207,220,242,.7)}
.hero-stats div{padding:18px 22px;border-right:1px solid var(--line)}
.hero-stats div:last-child{border-right:0}
.hero-stats b{display:block;font:700 26px/1.2 var(--mono);color:var(--ink)}
.hero-stats b small{font:500 13px var(--sans);color:var(--muted);margin-left:2px}
.hero-stats span{font-size:12.5px;color:var(--muted)}

/* terminal keeps a dark "code window" look — reads as a product screenshot on the light page */
.term{align-self:end;border-radius:14px;background:#0f1b2d;box-shadow:0 30px 70px -24px rgba(15,40,80,.45),0 0 0 1px rgba(15,40,80,.08);overflow:hidden;transition-delay:.3s}
.term-bar{display:flex;align-items:center;gap:6px;padding:10px 14px;border-bottom:1px solid rgba(255,255,255,.07);font:12px var(--mono);color:#6b7a93}
.term-bar i{width:9px;height:9px;border-radius:50%;background:#26344b}
.term-bar span{margin-left:8px}
.term-tag{margin-left:auto;font-weight:400;font-family:var(--sans);font-size:11px;padding:1px 8px;border-radius:999px;border:1px solid rgba(255,255,255,.14);color:#8fa0bb}
.term-body{margin:0;padding:16px 18px 18px;height:224px;overflow:hidden;font:12.5px/1.75 var(--mono);color:#b7c3d8;white-space:pre-wrap;word-break:break-all}
.term-body .t-cmd{color:#fff}
.term-body .t-p{color:#6aa9ff}
.term-body .t-ok{color:#4ade9a}
.term-body .t-warn{color:#fbbf24}
.term-body .t-dim{color:#6b7a93}
.term-body .t-hl{color:#8ec1ff}
.caret{display:inline-block;width:7px;height:14px;vertical-align:-2px;background:#6aa9ff;animation:blink 1s steps(1) infinite}
@keyframes blink{50%{opacity:0}}

.ticker{position:relative;border-top:1px solid var(--line);border-bottom:1px solid var(--line);overflow:hidden;padding:16px 0;background:rgba(255,255,255,.7);
  mask-image:linear-gradient(90deg,transparent,#000 10%,#000 90%,transparent);-webkit-mask-image:linear-gradient(90deg,transparent,#000 10%,#000 90%,transparent)}
.ticker-track{display:flex;width:max-content;animation:tick 48s linear infinite}
.ticker span{padding:0 28px;font-size:14px;color:var(--muted);white-space:nowrap;position:relative}
.ticker span::after{content:"";position:absolute;right:-2px;top:50%;width:4px;height:4px;border-radius:50%;background:var(--brand);opacity:.5;transform:translateY(-50%)}
@keyframes tick{to{transform:translateX(-50%)}}

/* ---------- sections ---------- */
.sec{position:relative;padding:clamp(88px,11vw,150px) 0;overflow-x:clip}
.sec.alt{background:var(--bg2)}
.sec-grid::before{content:"";position:absolute;inset:0;pointer-events:none;
  background-image:radial-gradient(rgba(51,133,242,.16) 1px,transparent 1.4px);background-size:26px 26px;
  mask-image:radial-gradient(ellipse 55% 60% at 75% 50%,#000,transparent 75%);-webkit-mask-image:radial-gradient(ellipse 55% 60% at 75% 50%,#000,transparent 75%)}
.sec-head{position:relative;max-width:760px;margin-bottom:clamp(44px,5.5vw,72px)}
.kicker{font:600 13px var(--mono);letter-spacing:.06em;color:var(--brand);margin-bottom:18px;min-height:1.4em}
.sec h2,.story h2{font-size:clamp(32px,4.2vw,56px);letter-spacing:-.03em;line-height:1.14;font-weight:700}
.sub{color:var(--muted);font-size:clamp(15.5px,1.15vw,17.5px);margin-top:22px;max-width:40em}

/* ---------- scroll story ---------- */
.story{position:relative;height:420vh;background:linear-gradient(180deg,#fff,#f3f7ff 20%,#f3f7ff 80%,#fff)}
.story-sticky{position:sticky;top:0;height:100vh;display:flex;align-items:center;overflow:hidden}
.story-in{display:grid;grid-template-columns:.9fr 1.1fr;gap:40px;align-items:center;padding-top:var(--nav-h)}
.story-steps{margin-top:34px;display:grid;gap:4px}
.story-steps li{display:grid;grid-template-columns:36px 1fr;gap:6px;padding:14px 16px;border-radius:14px;opacity:.38;transition:opacity .5s,background .5s,box-shadow .5s}
.story-steps li span{font:600 13px var(--mono);color:var(--brand);padding-top:3px}
.story-steps li b{display:block;font-size:17px;color:var(--ink)}
.story-steps li p{font-size:14px;color:var(--muted);max-height:0;overflow:hidden;transition:max-height .6s var(--ease),margin .6s}
.story-steps li.on{opacity:1;background:rgba(255,255,255,.9);box-shadow:var(--shadow),0 0 0 1px var(--line)}
.story-steps li.on p{max-height:120px;margin-top:4px}
.story-bar{margin-top:22px;height:3px;border-radius:2px;background:var(--b100);overflow:hidden}
.story-bar i{display:block;height:100%;width:0;background:linear-gradient(90deg,var(--brand),#7db4ff)}
.story-viz{position:relative;height:min(78vh,620px)}
.story-viz canvas{width:100%;height:100%}
.story-hud{position:absolute;left:12px;bottom:12px;display:flex;gap:12px;align-items:center;padding:8px 14px;border-radius:10px;background:rgba(255,255,255,.85);backdrop-filter:blur(10px);box-shadow:var(--shadow),0 0 0 1px var(--line);font:12px var(--mono);color:var(--muted)}
.story-hud span{color:var(--brand);font-weight:600;letter-spacing:.08em}
.story-hud b{font-weight:500;color:var(--ink)}

/* ---------- discovery funnel ---------- */
.funnel{position:relative;display:grid;grid-template-columns:repeat(6,1fr);border:1px solid var(--line);border-radius:var(--r);overflow:hidden;background:#fff;box-shadow:var(--shadow)}
.fstage{position:relative;padding:28px 22px 170px;border-right:1px solid var(--line);min-height:360px}
.fstage:last-of-type{border-right:0}
.fnum{display:block;font:600 clamp(28px,2.6vw,38px)/1 var(--mono);letter-spacing:-.02em;color:var(--ink)}
.fnum sup{font-size:.5em;vertical-align:top;margin-left:2px;color:var(--brand)}
.fname{display:block;margin-top:14px;font-weight:600;font-size:15.5px;color:var(--ink)}
.fdesc{display:block;margin-top:6px;font-size:13px;color:var(--muted);line-height:1.6}
.fdots{position:absolute;left:0;right:0;bottom:0;height:150px;background-image:radial-gradient(circle,rgba(51,133,242,.55) 1.1px,transparent 1.6px);background-size:var(--d) var(--d);
  mask-image:linear-gradient(0deg,#000,transparent);-webkit-mask-image:linear-gradient(0deg,#000,transparent)}
.fwet{background:linear-gradient(0deg,var(--brand-50),transparent 60%)}
.fwet .fdots{background-image:radial-gradient(circle,rgba(24,129,220,.9) 1.6px,transparent 2.2px)}
.fwet .fname::after{content:"湿实验";margin-left:8px;font-size:11px;font-weight:500;padding:1px 7px;border-radius:999px;background:var(--brand-100);color:var(--brand-d);vertical-align:2px}
.fout{background:radial-gradient(260px 200px at 50% 100%,rgba(51,133,242,.18),transparent 70%)}
.fout .fnum{color:var(--brand)}
.fstar{position:absolute;left:50%;bottom:58px;width:14px;height:14px;margin-left:-7px;border-radius:50%;background:var(--brand);box-shadow:0 0 0 6px rgba(51,133,242,.15),0 0 36px 8px rgba(51,133,242,.35);animation:star 2.4s var(--ease) infinite}
@keyframes star{50%{transform:scale(1.25);box-shadow:0 0 0 12px rgba(51,133,242,.06),0 0 50px 14px rgba(51,133,242,.4)}}
.funnel-scan{position:absolute;top:0;bottom:0;width:120px;left:-120px;background:linear-gradient(90deg,transparent,rgba(51,133,242,.08),transparent);pointer-events:none;z-index:1}
.funnel.in .funnel-scan{animation:fscan 5s var(--ease) .6s infinite}
@keyframes fscan{to{left:100%}}
.fnote{position:absolute;right:16px;bottom:10px;font-size:11px;color:var(--dim)}

.split{display:grid;grid-template-columns:.8fr 2fr;gap:48px;margin-top:clamp(64px,8vw,100px);align-items:start}
.focus-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.focus{padding:28px 26px;border:1px solid var(--line);border-radius:var(--r);background:#fff;box-shadow:var(--shadow);transition:border-color .3s,transform .5s var(--ease),box-shadow .3s}
.focus:hover{border-color:var(--brand-200);transform:translateY(-3px);box-shadow:var(--shadow-lg)}
.focus-i{font:600 12px var(--mono);color:var(--brand)}
.focus h4{font-size:19px;margin:14px 0 10px}
.focus p{font-size:14.5px;color:var(--muted)}

.models{margin-top:clamp(56px,7vw,88px)}
.model-row{display:grid;grid-template-columns:repeat(3,1fr);border:1px solid var(--line);border-radius:var(--r);overflow:hidden;margin-top:20px;background:#fff}
.model{padding:28px 28px;border-right:1px solid var(--line)}
.model:last-child{border-right:0}
.model b{display:block;font-size:17px;font-weight:600;margin-bottom:8px;color:var(--ink)}
.model p{color:var(--muted);font-size:14.5px}

/* ---------- FDE path ---------- */
.path{display:grid;grid-template-columns:repeat(3,1fr);gap:0;position:relative;border-top:1px solid var(--line2)}
.path::before{content:"";position:absolute;top:-1px;left:0;height:2px;width:0;background:var(--grad);transition:width 1.6s var(--ease) .3s}
.path.in::before{width:100%}
.path-step{padding:32px 32px 0 0;position:relative}
.path-step+.path-step{padding-left:32px;border-left:1px solid var(--line)}
.path-step::before{content:"";position:absolute;top:-6px;left:0;width:11px;height:11px;border-radius:50%;background:#fff;border:2px solid var(--brand)}
.path-step+.path-step::before{left:-6px}
.path-time{font:600 12.5px var(--mono);color:var(--brand);letter-spacing:.06em}
.path-step h3{font-size:clamp(22px,2vw,28px);margin:12px 0 12px;display:flex;align-items:baseline;gap:12px}
.path-step h3 i{font:400 14px var(--mono);font-style:normal;color:var(--dim)}
.path-step p{color:var(--muted);font-size:15px}
.path-out{display:inline-block;margin-top:18px;font-size:13px;padding:5px 12px;border-radius:8px;background:var(--brand-50);color:var(--brand-d)}

.scen-head{margin:clamp(72px,9vw,120px) 0 28px;display:flex;justify-content:space-between;align-items:end;gap:24px;flex-wrap:wrap}
.scen-head .muted{max-width:32em}
.scen-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}
.scen{padding:22px 22px 24px;border:1px solid var(--line);border-radius:var(--r-sm);background:#fff;transition:border-color .3s,box-shadow .3s}
.scen:hover{border-color:var(--brand-200);box-shadow:var(--shadow)}
.scen-dept{display:block;font-size:13px;color:var(--brand);margin-bottom:12px;font-weight:600}
.scen li{font-size:15px;padding:4px 0 4px 16px;position:relative;color:var(--ink)}
.scen li::before{content:"";position:absolute;left:0;top:50%;width:6px;height:6px;margin-top:-3px;border-radius:50%;background:var(--brand-200)}
.scen-more{background:var(--bg3);border-style:dashed;border-color:var(--line2)}
.scen-more p{color:var(--muted);font-size:14px}
.scen-more a{display:inline-block;margin-top:10px;font-size:14px;color:var(--brand);font-weight:500}

.secure{margin-top:clamp(56px,7vw,88px);display:grid;grid-template-columns:1fr 1.4fr;gap:40px;align-items:center;padding:36px;border-radius:var(--r);
  background:linear-gradient(120deg,var(--brand-d),var(--brand));color:#fff;box-shadow:0 30px 60px -30px rgba(24,129,220,.6)}
.secure .h3{color:#fff}
.secure .muted{color:rgba(255,255,255,.8)}
.secure-list{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}
.secure-list li{padding:16px;border-radius:var(--r-sm);background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.18)}
.secure-list b{display:block;font-size:15px;font-weight:600}
.secure-list b::before{content:"";display:inline-block;width:6px;height:6px;border-radius:50%;background:#7ff0b8;margin-right:8px;vertical-align:3px}
.secure-list span{font-size:13px;color:rgba(255,255,255,.78)}

/* ---------- case stage ---------- */
.stage{border:1px solid var(--line);border-radius:22px;background:#fff;overflow:hidden;box-shadow:var(--shadow-lg)}
.stage-tabs{display:grid;grid-template-columns:repeat(4,1fr);border-bottom:1px solid var(--line);background:var(--bg3)}
.stab{position:relative;background:none;border:0;border-right:1px solid var(--line);padding:18px 22px;text-align:left;color:var(--muted);font:500 15.5px var(--sans);cursor:pointer;transition:color .3s,background .3s}
.stab:last-child{border-right:0}
.stab small{display:block;font-size:12px;color:var(--dim);font-weight:400;margin-bottom:2px}
.stab:hover{color:var(--brand)}
.stab.on{color:var(--ink);background:#fff}
.stab-bar{position:absolute;left:0;bottom:-1px;height:2px;width:0;background:var(--brand)}
.stab.on .stab-bar{animation:tabbar var(--dur,9s) linear forwards}
.stage.paused .stab.on .stab-bar{animation-play-state:paused}
@keyframes tabbar{to{width:100%}}
.scenes{position:relative;min-height:440px}
.scene{position:absolute;inset:0;display:grid;grid-template-columns:1.3fr 1fr;gap:32px;padding:36px;opacity:0;visibility:hidden;transition:opacity .5s,visibility .5s}
.scene.on{position:relative;opacity:1;visibility:visible}
.side{display:flex;flex-direction:column;gap:10px}

[data-at]{transition:opacity .5s var(--ease),transform .5s var(--ease),background .4s,border-color .4s,color .4s,box-shadow .4s}

/* notes */
.note{padding:12px 14px;border-radius:10px;border:1px solid var(--line);background:var(--bg3);font-size:13.5px;color:var(--muted);opacity:0;transform:translateY(8px)}
.note b{display:block;color:var(--ink);font-size:14px;margin-bottom:2px;font-weight:600}
.note.on{opacity:1;transform:none}
.note.warn{border-left:3px solid var(--warn);background:#fffaf0}
.note.bad{border-left:3px solid var(--bad);background:#fff5f4}
.note.ok{border-left:3px solid var(--ok);background:#f2fbf6}
.kpis{display:grid;grid-template-columns:repeat(3,1fr);gap:8px;margin-bottom:6px}
.kpis div{padding:14px;border:1px solid var(--line);border-radius:10px;background:#fff}
.kpis b{display:block;font:600 26px/1.1 var(--mono);color:var(--brand)}
.kpis span{font-size:12px;color:var(--dim)}

/* doc */
.doc{position:relative;border:1px solid var(--line);border-radius:12px;padding:20px 24px 24px;background:var(--bg3);overflow:hidden}
.doc-head{display:flex;justify-content:space-between;font-size:12.5px;color:var(--dim);margin-bottom:20px;font-family:var(--mono)}
.dl{position:relative;height:10px;border-radius:5px;background:#e3e8f0;margin:0 0 16px}
.w50{width:50%}.w60{width:60%}.w65{width:65%}.w70{width:70%}.w75{width:75%}.w80{width:80%}.w85{width:85%}.w88{width:88%}.w90{width:90%}.w95{width:95%}
.dl.flag.on{background:#fcd68a;box-shadow:0 0 0 4px rgba(245,158,11,.15)}
.dl em{position:absolute;right:-4px;top:50%;transform:translate(100%,-50%);font-size:11px;color:#b45309;opacity:0;white-space:nowrap;transition:opacity .4s;font-weight:500}
.dl.flag.on em{opacity:1}
.scanline{position:absolute;left:0;right:0;top:48px;height:2px;background:linear-gradient(90deg,transparent,var(--brand),transparent);box-shadow:0 0 14px 2px rgba(51,133,242,.35);opacity:0}
.scanline.on{opacity:1;animation:scan 4.4s linear forwards}
@keyframes scan{to{top:calc(100% - 10px);opacity:.2}}

/* graph */
.graph{width:100%;height:auto;align-self:center}
.ge{fill:none;stroke:#c9d3e1;stroke-width:1.4;stroke-dasharray:240;stroke-dashoffset:240;transition:stroke-dashoffset 1s var(--ease)}
.ge.on{stroke-dashoffset:0}
.ge.dim{stroke:#e1e6ee}
.ge.new{stroke:var(--brand);stroke-width:2.4;stroke-dasharray:6 6;stroke-dashoffset:0;opacity:0}
.ge.new.on{opacity:1;animation:dash 1s linear infinite}
@keyframes dash{to{stroke-dashoffset:-24}}
.gn{opacity:0;transform-box:fill-box;transform-origin:center;transform:scale(.6)}
.gn.on{opacity:1;transform:none}
.gn circle{fill:#fff;stroke:#c9d3e1;stroke-width:1.4}
.gn text{fill:var(--ink);font:12px var(--sans);text-anchor:middle}
.gn.drug circle{stroke:var(--brand);fill:var(--brand-50);stroke-width:2}
.gn.old circle{stroke:#e1e6ee}
.gn.old text{fill:var(--dim)}
.gn.scan.on circle{animation:gscan 1.4s 2 .6s}
@keyframes gscan{50%{stroke:var(--brand);fill:var(--brand-100)}}
.gn.hit circle{stroke:var(--brand);fill:var(--brand);stroke-width:2}
.gn.hit text{fill:#fff;font-weight:600}
.gn.hit.on circle{animation:ghit 1.8s infinite}
@keyframes ghit{50%{stroke-width:8;stroke:rgba(51,133,242,.3)}}
.log p{font:12.5px/1.9 var(--mono);color:var(--muted);opacity:0;transform:translateX(-6px)}
.log p.on{opacity:1;transform:none}
.log p.hl{color:var(--brand);font-weight:600}
.log{margin-bottom:6px}

/* flows */
.flows{position:relative;align-self:center;padding:10px 0}
.frow,.fcols{display:grid;grid-template-columns:80px repeat(4,1fr);gap:10px;align-items:center;margin-bottom:10px}
.fl{font-size:13.5px;color:var(--muted)}
.frow i{display:block;height:44px;border-radius:10px;border:1px solid var(--line);background:var(--bg3);position:relative}
.frow i::after{content:"";position:absolute;inset:0;margin:auto;width:14px;height:14px;opacity:0;transition:opacity .3s;
  background:no-repeat center/contain url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3E%3Cpath d='M3 8.5l3 3 7-7' fill='none' stroke='%2317b26a' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E")}
.frow i.on{border-color:#a6e9c7;background:#effbf4}
.frow i.on::after{opacity:1}
.frow i.bad.on{border-color:#fda29b;background:#fff1f0;animation:shake .5s}
.frow i.bad::after{background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3E%3Cpath d='M4 4l8 8M12 4l-8 8' fill='none' stroke='%23f04438' stroke-width='2' stroke-linecap='round'/%3E%3C/svg%3E")}
@keyframes shake{25%{transform:translateX(-3px)}75%{transform:translateX(3px)}}
.fcols span{font:12px var(--mono);color:var(--dim);text-align:center}
.flows-scan{position:absolute;top:0;bottom:30px;left:90px;width:calc((100% - 90px - 30px)/4);border-radius:12px;border:2px solid var(--brand);box-shadow:0 0 0 6px rgba(51,133,242,.1);opacity:0}
.flows-scan.on{opacity:1;animation:fsweep 3.6s steps(1) forwards}
@keyframes fsweep{
  0%{transform:translateX(0)}
  25%{transform:translateX(calc(100% + 10px))}
  50%{transform:translateX(calc(200% + 20px))}
  75%{transform:translateX(calc(300% + 30px))}
  100%{transform:translateX(calc(300% + 30px));opacity:0}}

/* PV feed */
.feed{display:flex;flex-direction:column;gap:12px;align-self:center}
.msg{padding:14px 16px;border:1px solid var(--line);border-radius:12px;background:var(--bg3);font-size:14.5px;color:var(--ink);opacity:0;transform:translateY(10px)}
.msg.on{opacity:1;transform:none}
.msg small{display:block;font-size:12px;color:var(--dim);margin-bottom:4px}
.msg mark{background:none;color:inherit;border-radius:4px;padding:0 2px;transition:background .5s .6s,color .5s .6s}
.msg.on .m-drug{background:var(--brand-100);color:var(--brand-d)}
.msg.on .m-ae{background:#fdecc8;color:#b45309}
.form{border:1px solid var(--line);border-radius:12px;padding:6px 16px 10px;background:#fff}
.frm-h{font-size:12.5px;color:var(--dim);padding:10px 0;border-bottom:1px solid var(--line);margin-bottom:4px;font-family:var(--mono)}
.form label{display:flex;justify-content:space-between;gap:12px;padding:9px 0;font-size:13.5px;color:var(--muted);border-bottom:1px dashed var(--line)}
.form label:last-child{border-bottom:0}
.form label span{color:var(--ink);font-weight:500;opacity:0;transform:translateX(6px)}
.form label span.on{opacity:1;transform:none}
.form label span.sig{color:var(--brand)}

/* ---------- upgrade ---------- */
.up-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.up{padding:30px 28px;border:1px solid var(--line);border-radius:var(--r);background:#fff;box-shadow:var(--shadow);transition:border-color .3s,transform .5s var(--ease),box-shadow .3s;display:flex;flex-direction:column}
.up:hover{border-color:var(--brand-200);transform:translateY(-3px);box-shadow:var(--shadow-lg)}
.up h3{font-size:20px;margin-bottom:18px}
.up-was{font-size:13.5px;color:var(--dim);margin-bottom:12px}
.up-was::before{content:"过去";display:inline-block;margin-right:8px;font-size:11px;padding:0 6px;border:1px solid var(--line2);border-radius:4px}
.up-now{font-size:14.5px;color:var(--text)}
.up-now::before{content:"现在";display:inline-block;margin-right:8px;font-size:11px;padding:0 6px;border-radius:4px;background:var(--brand);color:#fff;vertical-align:1px}

/* ---------- network ---------- */
.net{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
.net-feats{margin-top:40px;display:grid;gap:14px}
.net-feats li{padding:18px 20px;border:1px solid var(--line);border-radius:var(--r-sm);background:#fff}
.net-feats b{display:block;font-weight:600;margin-bottom:2px;color:var(--ink)}
.net-feats span{font-size:14px;color:var(--muted)}
.net-viz svg{width:100%;height:auto;overflow:visible}
.nv-ring{fill:none;stroke:var(--line2);stroke-dasharray:2 6}
.nv-link{stroke:#d3deed;stroke-width:1}
.nv-flow{stroke:var(--brand);stroke-width:2;fill:none;stroke-dasharray:6 120;animation:nvflow 3.2s linear infinite;stroke-linecap:round}
@keyframes nvflow{to{stroke-dashoffset:-126}}
.nv-node circle{fill:#fff;stroke:#b9c8dc;stroke-width:1.4}
.nv-node text{fill:var(--ink);font:13px var(--sans);text-anchor:middle}
.nv-hub circle.core{fill:var(--brand)}
.nv-hub text{fill:#fff;font:600 16px var(--sans);text-anchor:middle}
.nv-pulse{fill:none;stroke:var(--brand);opacity:.5;transform-origin:260px 260px;animation:nvpulse 3s var(--ease) infinite}
@keyframes nvpulse{from{transform:scale(1);opacity:.5}to{transform:scale(2.4);opacity:0}}

/* ---------- about ---------- */
.about{display:grid;grid-template-columns:1fr 1.2fr;gap:56px;align-items:start}
.about h2{font-size:clamp(26px,3vw,38px)}
.about-copy p{color:var(--muted);font-size:16.5px}
.about-copy p+p{margin-top:18px}

/* ---------- CTA ---------- */
.cta{background:linear-gradient(180deg,var(--bg2),#fff)}
.cta-in{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
.cta-contact{margin-top:36px;font-size:14.5px;color:var(--muted)}
.cta-contact span{display:block;font-size:12px;color:var(--dim);margin-bottom:2px}
.form-card{padding:32px;border:1px solid var(--line);border-radius:var(--r);background:#fff;box-shadow:var(--shadow-lg);display:grid;gap:16px}
.frow2{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.form-card label{display:grid;gap:6px;font-size:13px;color:var(--muted)}
.form-card input,.form-card select{height:46px;padding:0 14px;border-radius:10px;border:1px solid var(--line2);background:#fff;color:var(--ink);font:15px var(--sans);transition:border-color .2s,box-shadow .2s;appearance:none;-webkit-appearance:none}
.form-card select{background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 12 12'%3E%3Cpath d='M3 4.5l3 3 3-3' fill='none' stroke='%23575e69' stroke-width='1.4'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 14px center;background-size:12px}
.form-card input:focus,.form-card select:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 4px rgba(51,133,242,.12)}
.form-card input.err{border-color:var(--bad)}
.form-msg{font-size:13.5px;min-height:1.4em;color:var(--ok)}
.form-msg.err{color:var(--bad)}

/* ---------- footer ---------- */
.foot{background:#1f2329;padding:48px 0 48px;font-size:13.5px;color:#a3aab5}
.foot-in{display:grid;grid-template-columns:auto 1fr;gap:24px 48px;align-items:center}
.foot-brand{display:flex;align-items:center;gap:16px}
.foot-brand img{height:26px;width:auto;filter:brightness(0) invert(1)}
.foot-brand span{font-size:13px;padding-left:16px;border-left:1px solid rgba(255,255,255,.15)}
.foot-nav{display:flex;gap:24px;justify-content:flex-end;flex-wrap:wrap}
.foot-nav a:hover{color:#fff}
.foot-legal{grid-column:1/-1;display:flex;flex-wrap:wrap;gap:6px 20px;padding-top:24px;border-top:1px solid rgba(255,255,255,.1);font-size:12.5px;color:#7d848f}
.foot-legal a:hover{color:#c7ccd3}


/* ---------- 药聚汇 additions ---------- */
.sec-alt{background:var(--bg2)}
.grad{background:linear-gradient(100deg,var(--brand-d) 0%,var(--brand) 40%,#7db4ff 60%,var(--brand-d) 100%);background-size:200% 100%;-webkit-background-clip:text;background-clip:text;color:transparent;animation:sheen 6s linear infinite}
.muted{color:var(--muted)}
.h3{font-size:clamp(20px,1.8vw,24px);margin-bottom:10px}
.hero-in{grid-template-columns:1.15fr .85fr;align-items:end}
.hero h1 .grad{display:inline}
.hero-meta{display:flex;gap:36px;margin:48px 0 0;padding:18px 24px;border-radius:16px;max-width:600px;background:rgba(255,255,255,.7);backdrop-filter:blur(12px);box-shadow:var(--shadow),0 0 0 1px rgba(215,219,224,.7)}
.hero-meta dt{font-size:12px;color:var(--dim);letter-spacing:.08em;margin-bottom:4px}
.hero-meta dd{margin:0;font-size:14px;color:var(--ink);font-weight:500}
.br-m{display:none}
.term{position:relative;z-index:2;animation:float 7s ease-in-out infinite}
.ticker{position:relative;z-index:2}
/* spotlight + tilt cards */
.spot{position:relative;overflow:hidden;transition:transform .5s var(--ease),box-shadow .3s,border-color .3s;will-change:transform}
.spot::after{content:"";position:absolute;inset:0;border-radius:inherit;padding:1.5px;background:radial-gradient(240px circle at var(--mx,50%) var(--my,0%),var(--brand),transparent 70%);
  -webkit-mask:linear-gradient(#000 0 0) content-box,linear-gradient(#000 0 0);-webkit-mask-composite:xor;mask-composite:exclude;opacity:0;transition:opacity .3s;pointer-events:none}
.spot:hover::after{opacity:1}
.spot:hover{box-shadow:var(--shadow-lg)}
.up.spot,.focus.spot,.scen.spot{background-image:radial-gradient(360px circle at var(--mx,50%) var(--my,-20%),rgba(51,133,242,.08),transparent 60%)}
.story{background:linear-gradient(180deg,#fff,#f0f5fd 20%,#f0f5fd 80%,#fff)}
.story-hud b:empty{display:none}

/* ==========================================================
   Responsive
   ========================================================== */
@media (max-width:1080px){
  .nav-links{gap:20px;font-size:14px}
  .hero-in{grid-template-columns:1fr;align-items:start}
  .term{max-width:560px}
  .funnel{grid-template-columns:repeat(3,1fr)}
  .fstage:nth-of-type(3){border-right:0}
  .fstage:nth-of-type(-n+3){border-bottom:1px solid var(--line)}
  .split{grid-template-columns:1fr;gap:24px}
  .scen-grid{grid-template-columns:repeat(2,1fr)}
  .secure{grid-template-columns:1fr}
  .up-grid{grid-template-columns:repeat(2,1fr)}
  .net{grid-template-columns:1fr}
  .net-viz{max-width:520px;margin-inline:auto;width:100%}
  .scene{grid-template-columns:1fr;gap:24px}
}
@media (max-width:860px){
  .nav-links{position:fixed;top:var(--nav-h);left:0;right:0;flex-direction:column;gap:0;padding:8px 24px 24px;background:#fff;border-bottom:1px solid var(--line);font-size:17px;color:var(--ink);box-shadow:0 20px 40px -20px rgba(31,35,41,.2);
    transform:translateY(-8px);opacity:0;visibility:hidden;transition:opacity .3s,transform .3s,visibility .3s}
  .nav-links a{padding:14px 0;border-bottom:1px solid var(--line)}
  .nav.open .nav-links{opacity:1;transform:none;visibility:visible}
  .nav.open{background:#fff}
  .nav-cta{margin-left:auto}
  .nav-toggle{display:grid;place-content:center;gap:6px;width:40px;height:40px;border:1px solid var(--line2);border-radius:10px;background:#fff;cursor:pointer;padding:0}
  .nav-toggle span{display:block;width:16px;height:1.5px;background:var(--ink);transition:transform .3s}
  .nav.open .nav-toggle span:first-child{transform:translateY(3.75px) rotate(45deg)}
  .nav.open .nav-toggle span:last-child{transform:translateY(-3.75px) rotate(-45deg)}
  .arch{grid-template-columns:1fr}
  .arch-net{grid-template-columns:1fr}
  .net-dots{display:none}
  .path{grid-template-columns:1fr;border-top:0;border-left:1px solid var(--line2)}
  .path::before{top:0;left:-1px;width:2px;height:0;transition:height 1.6s var(--ease) .3s}
  .path.in::before{width:2px;height:100%}
  .path-step,.path-step+.path-step{padding:0 0 36px 28px;border-left:0}
  .path-step::before,.path-step+.path-step::before{top:6px;left:-6px}
  .model-row{grid-template-columns:1fr}
  .model{border-right:0;border-bottom:1px solid var(--line)}
  .model:last-child{border-bottom:0}
  .focus-grid{grid-template-columns:1fr}
  .secure-list{grid-template-columns:repeat(2,1fr)}
  .stage-tabs{grid-template-columns:repeat(2,1fr)}
  .stab:nth-child(2){border-right:0}
  .stab:nth-child(-n+2){border-bottom:1px solid var(--line)}
  .about,.cta-in{grid-template-columns:1fr;gap:32px}
  .foot-in{grid-template-columns:1fr}
  .foot-nav{justify-content:flex-start}
}
@media (max-width:600px){
  .wrap{width:calc(100% - 32px)}
  .nav-cta{display:none}
  .nav-toggle{margin-left:auto}
  .brand img{height:24px}
  .br-m{display:inline}
  .hero-in{padding:48px 0 40px;gap:32px}
  .hero-meta{gap:20px;flex-wrap:wrap}
  .term-body{height:236px;font-size:11.5px}
  .arch-card{padding:28px 24px}
  .arch-go{top:28px;right:24px}
  .arch-art{display:none}
  .arch-rd,.arch-biz{min-height:0}
  .funnel{grid-template-columns:1fr 1fr}
  .fstage{padding:22px 16px 110px;min-height:0;border-right:1px solid var(--line)!important;border-bottom:1px solid var(--line)}
  .fstage:nth-of-type(2n){border-right:0!important}
  .fdots{height:90px}
  .scen-grid,.up-grid{grid-template-columns:1fr}
  .secure{padding:24px}
  .secure-list{grid-template-columns:1fr 1fr}
  .scene{padding:20px}
  .stab{padding:14px 16px;font-size:14px}
  .scenes{min-height:640px}
  .kpis b{font-size:21px}
  .frow,.fcols{grid-template-columns:56px repeat(4,1fr);gap:6px}
  .flows-scan{left:62px;width:calc((100% - 62px - 18px)/4)}
  @keyframes fsweep{0%{transform:translateX(0)}25%{transform:translateX(calc(100% + 6px))}50%{transform:translateX(calc(200% + 12px))}75%{transform:translateX(calc(300% + 18px))}100%{transform:translateX(calc(300% + 18px));opacity:0}}
  .dl em{display:none}
  .frow2{grid-template-columns:1fr}
  .form-card{padding:22px}
  .foot-brand{flex-direction:column;align-items:flex-start;gap:10px}
  .foot-brand span{padding-left:0;border-left:0}
}

@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important;scroll-behavior:auto!important}
  [data-reveal]{opacity:1;transform:none}
}


@media (max-width:1080px){
  .hud{display:none}
  .story-in{grid-template-columns:1fr;gap:8px;align-content:center}
  .story-viz{height:40vh;order:-1}
  .story-steps{margin-top:16px}
  .story-steps li{display:none}
  .story-steps li.on{display:grid}
  .cursor-glow{display:none}
}
@media (max-width:600px){
  .story h2{font-size:28px}
  .hero-meta{padding:14px 16px}
}
@media (prefers-reduced-motion:reduce){
  [data-reveal]{filter:none}
  .story{height:auto}
  .story-sticky{position:relative;height:auto;padding:100px 0}
}

/* ==========================================================
   药聚汇专属视觉语言：工程蓝图 · 工作流 · 线稿
   （与药云的流体 / 粒子风格刻意区分）
   ========================================================== */
.grad{animation:none;background:linear-gradient(100deg,var(--brand-d),var(--brand) 60%,#6aa9ff);-webkit-background-clip:text;background-clip:text;color:transparent;background-size:100% 100%}
[data-reveal]{filter:none;transform:translateY(22px)}
.cursor-glow,.hero-gl,.hero-canvas{display:none}

/* buttons: 填充推进，而非流光 */
.btn-primary{background:linear-gradient(90deg,var(--brand-dd) 0 50%,var(--brand) 50% 100%);background-size:200% 100%;background-position:100% 0;border-radius:10px;box-shadow:0 8px 20px -8px rgba(51,133,242,.6);transition:background-position .45s var(--ease),box-shadow .3s}
.btn-primary::after{display:none}
.btn-primary:hover{background-position:0 0;transform:none}
.btn-ghost{border-radius:10px}
.btn .arr{display:inline-block}
.btn:hover .arr{animation:nudge .6s var(--ease) infinite alternate}
@keyframes nudge{to{transform:translateX(4px)}}

/* hero：蓝图网格 + 准星 */
.hero{background:#f7f9fc}
.hero::before{z-index:0;opacity:1;
  background-image:
    linear-gradient(rgba(51,133,242,.14) 1px,transparent 1px),linear-gradient(90deg,rgba(51,133,242,.14) 1px,transparent 1px),
    linear-gradient(rgba(51,133,242,.06) 1px,transparent 1px),linear-gradient(90deg,rgba(51,133,242,.06) 1px,transparent 1px);
  background-size:120px 120px,120px 120px,24px 24px,24px 24px;
  mask-image:linear-gradient(180deg,#000 55%,transparent);-webkit-mask-image:linear-gradient(180deg,#000 55%,transparent)}
.hero::after{content:"";position:absolute;right:-10%;top:-20%;width:70%;height:90%;background:radial-gradient(closest-side,rgba(51,133,242,.16),transparent);pointer-events:none}
.xh{position:absolute;inset:0;pointer-events:none;z-index:1;opacity:0;transition:opacity .3s}
.hero:hover .xh{opacity:1}
.xh-x,.xh-y{position:absolute;background:rgba(51,133,242,.35)}
.xh-x{left:0;right:0;height:1px;top:0}
.xh-y{top:0;bottom:0;width:1px;left:0}
.xh-t{position:absolute;left:0;top:0;font:11px var(--mono);color:var(--brand-d);background:rgba(255,255,255,.9);padding:2px 6px;border-radius:4px;border:1px solid var(--b200);white-space:nowrap}
.hero-in{grid-template-columns:1fr 1fr;align-items:center;gap:56px}
.h1-mask .ln{display:block;overflow:hidden;padding-bottom:.06em}
.h1-mask .ln>span{display:inline-block;transform:translateY(105%);animation:lnup 1s var(--ease) forwards}
.h1-mask .ln:nth-child(2)>span{animation-delay:.12s}
.h1-mask .ln:nth-child(3)>span{animation-delay:.24s}
@keyframes lnup{to{transform:none}}
.hero .eyebrow{border-radius:6px;font-family:var(--mono);font-size:12px;letter-spacing:.04em}

/* workflow canvas */
.hero-vis{position:relative;padding-bottom:120px}
.flow{position:relative;border-radius:14px;background:#fff;box-shadow:0 30px 70px -30px rgba(31,35,41,.35),0 0 0 1px var(--line);overflow:hidden}
.flow-bar{display:flex;align-items:center;gap:6px;padding:10px 14px;border-bottom:1px solid var(--line);font:12px var(--mono);color:var(--muted);background:var(--bg3)}
.flow-bar i{width:9px;height:9px;border-radius:50%;background:#dfe3ea}
.flow-bar span{margin-left:8px}
.flow-live{margin-left:auto;display:flex;align-items:center;gap:6px;font:500 11px var(--sans);color:var(--ok)}
.flow-live em{width:7px;height:7px;border-radius:50%;background:var(--ok);animation:live 1.6s infinite}
@keyframes live{50%{opacity:.3}}
#flowSvg{width:100%;height:auto;background-image:radial-gradient(rgba(51,133,242,.18) 1px,transparent 1.2px);background-size:16px 16px}
.fe{fill:none;stroke:#c9d9f2;stroke-width:1.6}
.fe.on{stroke:var(--brand);transition:stroke .2s}
.fn rect{fill:#fff;stroke:#c9d9f2;stroke-width:1.4;transition:stroke .25s,fill .25s}
.fn text{font:12.5px var(--sans);fill:var(--ink);text-anchor:middle;dominant-baseline:central}
.fn .fn-sub{font:10px var(--mono);fill:var(--dim)}
.fn.core rect{fill:var(--brand);stroke:var(--brand)}
.fn.core text{fill:#fff;font-weight:600}
.fn.core .fn-sub{fill:rgba(255,255,255,.75)}
.fn.hit rect{stroke:var(--brand);fill:var(--b50)}
.fn.core.hit rect{fill:var(--brand-d)}
.fn.done.hit rect{stroke:var(--ok);fill:#effbf4}
.pk{fill:var(--brand)}
.pk.ok{fill:var(--ok)}
.pk-halo{fill:rgba(51,133,242,.18)}
.flow-stats{display:grid;grid-template-columns:repeat(3,1fr);border-top:1px solid var(--line)}
.flow-stats div{padding:12px 16px;border-right:1px solid var(--line)}
.flow-stats div:last-child{border-right:0}
.flow-stats b{display:block;font:600 20px var(--mono);color:var(--ink)}
.flow-stats span{font-size:12px;color:var(--dim)}
.hero-vis .term{position:absolute;left:-48px;right:48px;bottom:0;animation:none}
.hero-vis .term-body{height:176px}

/* horizontal story */
.hs{position:relative;background:#fff}
.hs-sticky{position:sticky;top:0;height:100vh;overflow:hidden;display:flex;flex-direction:column;justify-content:center;gap:36px;padding-top:var(--nav-h)}
.hs-head{display:flex;justify-content:space-between;align-items:end;gap:24px;flex-wrap:wrap}
.hs-head h2{font-size:clamp(28px,3.4vw,46px);font-weight:700;letter-spacing:-.03em}
.hs-steps{display:flex;gap:6px;font:500 12.5px var(--mono)}
.hs-steps li{padding:6px 12px;border:1px solid var(--line2);border-radius:6px;color:var(--dim);transition:.3s}
.hs-steps li.on{background:var(--ink);border-color:var(--ink);color:#fff}
.hs-track{display:flex;gap:28px;padding-left:max(24px,calc((100vw - 1200px)/2));padding-right:10vw;will-change:transform}
.hs-panel{--p:0;flex:none;width:min(900px,82vw);display:grid;grid-template-columns:1.15fr .85fr;border:1px solid var(--line2);border-radius:18px;background:#fff;overflow:hidden;box-shadow:0 20px 50px -30px rgba(31,35,41,.25)}
.hs-art{position:relative;background:#f7f9fc;border-right:1px solid var(--line);
  background-image:linear-gradient(rgba(51,133,242,.08) 1px,transparent 1px),linear-gradient(90deg,rgba(51,133,242,.08) 1px,transparent 1px);background-size:20px 20px}
.hs-svg{width:100%;height:100%;min-height:340px}
.hs-label{position:absolute;left:14px;top:12px;font:11px var(--mono);letter-spacing:.08em;color:var(--brand-d)}
.hs-copy{padding:36px 32px;display:flex;flex-direction:column;justify-content:center}
.hs-no{font:600 44px/1 var(--mono);color:var(--b200)}
.hs-copy h3{font-size:22px;margin:14px 0 12px}
.hs-copy p{color:var(--muted);font-size:15px}
.hs-tags{display:flex;flex-wrap:wrap;gap:6px;margin-top:20px}
.hs-tags li{font-size:12.5px;padding:3px 10px;border-radius:4px;background:var(--b50);color:var(--brand-d)}
.hs-foot{display:flex;align-items:center;gap:20px}
.hs-progress{flex:1;height:2px;background:var(--line)}
.hs-progress i{display:block;height:100%;width:0;background:var(--brand)}
.hs-hint{font:12px var(--mono);color:var(--dim)}
/* 线稿随滚动绘制 */
.d{fill:none;stroke:var(--brand);stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round;stroke-dasharray:1;stroke-dashoffset:calc(1 - var(--p));transition:stroke-dashoffset .15s linear}
.d.thin{stroke-width:1;stroke:#9cc4fb}
.d.dash{stroke-dasharray:.012 .012;stroke-dashoffset:0;opacity:var(--p)}
.dn{fill:#fff;stroke:var(--brand);stroke-width:1.6;opacity:calc(var(--p) * 1.4 - .4)}
.dn.fill{fill:var(--brand)}
.dt{font:11px var(--sans);fill:var(--ink);text-anchor:middle;dominant-baseline:central;opacity:calc(var(--p) * 1.6 - .6)}
.dt.mono{font:10px var(--mono);fill:var(--brand-d)}
.dt.w{fill:#fff;font-weight:600}

/* blueprint 卡片：角标描边 */
.bp{position:relative;transition:box-shadow .3s,border-color .3s}
.bp::before,.bp::after{content:"";position:absolute;width:14px;height:14px;border-color:var(--brand);border-style:solid;pointer-events:none;transition:width .5s var(--ease),height .5s var(--ease),opacity .3s;opacity:0;padding:0;background:none;-webkit-mask:none;mask:none;border-radius:inherit}
.bp::before{left:-1px;top:-1px;border-width:2px 0 0 2px}
.bp::after{right:-1px;bottom:-1px;border-width:0 2px 2px 0}
.bp:hover::before,.bp:hover::after{opacity:1;width:calc(100% + 2px);height:calc(100% + 2px)}
.bp:hover{box-shadow:var(--shadow-lg)}
.up.bp,.focus.bp,.scen.bp{background-image:none}
.kicker{display:inline-flex;align-items:center;gap:10px}
.kicker::before{content:"";width:0;height:2px;background:var(--brand);transition:width .8s var(--ease) .2s}
.in .kicker::before,.hs .kicker::before{width:22px}
.sec-head h2{clip-path:inset(0 0 100% 0);transform:translateY(18px);transition:clip-path 1s var(--ease) .1s,transform 1s var(--ease) .1s}
.sec-head.in h2{clip-path:inset(-10% 0 -10% 0);transform:none}

@media (max-width:1080px){
  .hero-in{grid-template-columns:1fr}
  .hero-vis{max-width:620px;padding-bottom:140px}
  .hero-vis .term{left:24px;right:-12px}
  .xh{display:none}
  .hs{height:auto!important}
  .hs-sticky{position:relative;height:auto;padding:100px 0}
  .hs-track{flex-direction:column;transform:none!important;padding:0 24px}
  .hs-panel{width:100%;grid-template-columns:1fr}
  .hs-art{border-right:0;border-bottom:1px solid var(--line)}
  .hs-svg{min-height:260px}
  .hs-hint{display:none}
}
@media (max-width:600px){
  .hero-vis .term{left:12px;right:-4px}
  .hero-vis .term-body{height:150px;font-size:11px}
  .flow-stats b{font-size:16px}
  .hs-track{padding:0 16px}
  .hs-copy{padding:24px 20px}
  .hs-steps{display:none}
}
@media (prefers-reduced-motion:reduce){
  .h1-mask .ln>span{transform:none;animation:none}
  .sec-head h2{clip-path:none;transform:none}
}
.hero h1.h1-mask{font-size:clamp(38px,4.5vw,66px)}
.hero-vis{padding-bottom:150px}
.hero-vis .term{left:-40px;right:90px}
.hero-vis .term-body{height:150px}
@media (max-width:1080px){.hero h1.h1-mask{font-size:clamp(36px,8vw,60px)}.hero-vis{padding-bottom:160px}}