/* TerseLink 官网 · 首页专属样式（依赖 site.css） */
/* ---------- hero ---------- */
.hero{position:relative;padding:156px 0 108px;overflow:hidden}
.hero canvas{position:absolute;inset:0;width:100%;height:100%;z-index:0;opacity:.9;-webkit-mask-image:linear-gradient(#000 60%,transparent);mask-image:linear-gradient(#000 60%,transparent)}
.hero::after{content:"";position:absolute;inset:0;background:radial-gradient(60% 60% at 80% 30%,rgba(119,183,229,.22),transparent 70%),radial-gradient(40% 40% at 8% 70%,rgba(56,211,159,.10),transparent 70%);pointer-events:none;z-index:0;-webkit-mask-image:linear-gradient(#000 65%,transparent);mask-image:linear-gradient(#000 65%,transparent)}
.hero .wrap{position:relative;z-index:1;display:grid;grid-template-columns:1.02fr 1fr;gap:72px;align-items:center}
.eyebrow{display:inline-flex;align-items:center;gap:10px;padding:5px 12px 5px 6px;border:1px solid var(--line-2);border-radius:999px;background:rgba(255,255,255,.6);font-size:13px;color:var(--ink-2)}
.eyebrow b{background:var(--ink);color:#fff;font-size:11.5px;padding:2px 8px;border-radius:999px;font-weight:600;letter-spacing:.02em;white-space:nowrap}
.hero h1{font-size:clamp(38px,4.3vw,68px);line-height:1.08;letter-spacing:-.035em;font-weight:800;margin:22px 0}
.hero h1 em{font-style:normal;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;font-family:var(--mono);font-weight:700;letter-spacing:-.04em}
.lead{font-size:18.5px;color:var(--ink-2);max-width:600px}
.cta-row{display:flex;gap:12px;margin:32px 0 34px;flex-wrap:wrap}
.diff{border:1px solid var(--line-2);border-radius:12px;background:rgba(255,255,255,.72);backdrop-filter:blur(6px);max-width:600px;overflow:hidden;font-family:var(--mono);font-size:13.5px}
.diff-head{display:flex;justify-content:space-between;padding:9px 14px;border-bottom:1px solid var(--line);color:var(--mute);font-size:12px}
.diff-head b{color:var(--ink);font-weight:600}
.diff pre{padding:10px 0;line-height:1.75;overflow-x:auto;font-family:inherit}
.diff .ln{display:block;padding:0 14px;white-space:pre}
.diff .del{background:rgba(229,72,77,.07);color:#9b2c30}
.diff .add{background:rgba(11,155,106,.09);color:#0a6e4c}
.diff .ln::before{display:inline-block;width:16px;opacity:.7}
.diff .del::before{content:"-"}
.diff .add::before{content:"+"}
.hero-meta{display:flex;gap:22px;margin-top:22px;font-size:13.5px;color:var(--mute);flex-wrap:wrap}
.hero-meta span{display:flex;align-items:center;gap:7px}
.hero-meta svg{width:16px;height:16px;color:var(--ink-2)}
.hero-right{position:relative}
/* hero 连接拓扑：01 接入 → 02 优化 → 03 输出，逐级递进 */
.hero .wrap{grid-template-columns:.88fr 1.12fr}
.topo{position:relative}
.topo-flow{display:grid;grid-template-columns:.8fr 36px 1.18fr 36px 1fr;align-items:start}
.stage{position:relative;border:1px solid var(--line);border-radius:20px;background:rgba(255,255,255,.8);backdrop-filter:blur(8px);padding:14px;box-shadow:0 30px 60px -44px rgba(10,19,34,.45)}
.stage.s1{margin-top:72px}
.stage.s2{margin-top:34px;background:linear-gradient(180deg,#fff 0%,#EAF3FB 100%);border-color:rgba(0,118,191,.24);box-shadow:0 40px 80px -40px rgba(0,77,161,.42)}
.stage.s3{margin-top:0}
.st-hd{display:flex;align-items:center;gap:10px;padding:2px 2px 12px;margin-bottom:12px;border-bottom:1px dashed var(--line-2)}
.st-no{font-family:var(--mono);font-size:11.5px;font-weight:600;color:var(--blue);border:1px solid rgba(0,118,191,.35);border-radius:999px;padding:1px 8px;background:#fff}
.s2 .st-no{background:var(--grad);color:#fff;border-color:transparent}
.st-hd b{display:block;font-size:14px;line-height:1.2}
.st-hd small{display:block;font-size:11px;color:var(--mute)}
.st-body{display:flex;flex-direction:column;gap:10px}

/* 连接器：虚线 + 箭头 + 流动光点 */
.t-conn{align-self:stretch;display:flex;align-items:center;position:relative}
.t-conn .c-line{flex:1;height:2px;background:repeating-linear-gradient(90deg,rgba(0,118,191,.35) 0 4px,transparent 4px 8px);position:relative}
.t-conn .c-line i{position:absolute;left:0;top:50%;width:7px;height:7px;margin-top:-3.5px;border-radius:50%;background:var(--save);box-shadow:0 0 0 3px rgba(11,155,106,.18);opacity:0}
.t-conn .c-arrow{width:22px;height:22px;border-radius:50%;background:#fff;border:1px solid rgba(0,118,191,.3);display:grid;place-items:center;color:var(--blue);flex:none;box-shadow:0 6px 14px -8px rgba(0,77,161,.5);transition:background .3s,color .3s,border-color .3s}
.t-conn .c-arrow svg{width:13px;height:13px}
.t-conn.go .c-arrow{background:var(--blue);color:#fff;border-color:var(--blue)}
.t-conn.go .c-line:first-child i{animation:cgo .45s linear forwards}
.t-conn.go .c-line:last-child i{animation:cgo .45s .5s linear forwards}
@keyframes cgo{0%{left:0;opacity:1}90%{opacity:1}100%{left:calc(100% - 7px);opacity:0}}

/* 01 来源 */
.t-src{display:flex;align-items:center;gap:10px;padding:10px;border:1px solid var(--line);border-radius:13px;background:#fff;transition:border-color .3s,box-shadow .3s}
.t-src>div{min-width:0}
.t-ic{width:34px;height:34px;border-radius:10px;background:var(--paper);display:grid;place-items:center;flex:none;transition:background .3s}
.t-ic i{width:19px;height:19px;background:var(--ink-2);-webkit-mask-size:contain;mask-size:contain;-webkit-mask-repeat:no-repeat;mask-repeat:no-repeat;-webkit-mask-position:center;mask-position:center;transition:background .3s}
.t-src b{display:block;font-size:13.5px;line-height:1.25}
.t-src small{display:block;font-size:11px;color:var(--mute);white-space:nowrap}
.t-src.on{border-color:rgba(0,118,191,.45);box-shadow:0 0 0 4px rgba(0,118,191,.08)}
.t-src.on .t-ic{background:var(--grad)}
.t-src.on .t-ic i{background:#fff}

/* 02 网关（浅色，与站点一致） */
.gw-hd{display:flex;align-items:center;gap:10px}
.gw-hd img{width:36px;height:36px}
.gw-hd b{display:block;font-family:"Orbitron",var(--sans);font-weight:600;font-size:17px;letter-spacing:.005em;line-height:1.2;color:var(--ink)}
.gw-hd b span{color:var(--blue)}
.gw-hd small{font-size:11.5px;color:var(--mute)}
.gw-addr{display:flex;align-items:center;gap:7px;margin:12px 0;font-family:var(--mono);font-size:11.5px;color:var(--blue-d);background:#fff;border:1px solid rgba(0,118,191,.18);border-radius:8px;padding:6px 9px}
.gw-addr i{width:6px;height:6px;border-radius:50%;background:var(--save);box-shadow:0 0 0 3px rgba(11,155,106,.15);animation:gwp 1.8s infinite}
@keyframes gwp{50%{box-shadow:0 0 0 6px rgba(11,155,106,0)}}
.gw-caps{list-style:none;display:flex;flex-direction:column;gap:6px}
.gw-caps li{display:flex;align-items:center;gap:10px;padding:8px 10px;border-radius:11px;border:1px solid var(--line);background:#fff;transition:border-color .35s,box-shadow .35s,transform .35s}
.gw-caps svg{width:30px;height:30px;padding:7px;border-radius:9px;background:var(--blue-bg);color:var(--blue);flex:none;transition:background .35s,color .35s}
.gw-caps b{display:block;font-size:13px;font-weight:600;line-height:1.3}
.gw-caps small{display:block;font-size:11px;color:var(--mute);line-height:1.3}
.gw-caps li.on{border-color:rgba(0,118,191,.45);box-shadow:0 0 0 4px rgba(0,118,191,.08);transform:translateX(3px)}
.gw-caps li.on svg{background:var(--grad);color:#fff}
.gw-ft{display:flex;justify-content:space-between;margin-top:12px;padding-top:10px;border-top:1px dashed var(--line-2);font-size:11.5px;color:var(--mute)}
.gw-ft .mono{color:var(--save);font-weight:600}

/* 03 生态 */
.t-grp{border:1px solid var(--line);border-radius:13px;background:#fff;padding:10px 11px 11px;transition:border-color .3s,box-shadow .3s}
.t-grp.on{border-color:rgba(0,118,191,.45);box-shadow:0 0 0 4px rgba(0,118,191,.08)}
.g-hd{display:flex;align-items:baseline;justify-content:space-between;margin-bottom:8px}
.g-hd b{font-size:13px}
.g-hd small{font-size:10.5px;color:var(--mute)}
.g-lg{display:grid;grid-template-columns:repeat(4,1fr);gap:6px}
.lg{aspect-ratio:1;border-radius:9px;background:var(--paper);border:1px solid rgba(10,19,34,.05);display:grid;place-items:center;transition:transform .2s,background .2s}
.lg:hover{transform:translateY(-2px);background:#fff;box-shadow:0 8px 16px -10px rgba(10,19,34,.35)}
.lg img{width:62%;height:62%;object-fit:contain}
.lg.more{font-size:15px;color:var(--mute);font-weight:500;border-style:dashed;border-color:var(--line-2);background:transparent}
.float-tag{position:absolute;z-index:2;background:#fff;border:1px solid var(--line);border-radius:12px;padding:10px 14px;box-shadow:0 18px 40px -18px rgba(10,19,34,.4);font-size:13px;display:flex;align-items:center;gap:10px}
.float-tag svg{width:20px;height:20px;color:var(--blue)}
.float-tag b{display:block;font-size:13.5px}
.float-tag small{color:var(--mute);font-size:12px}
.ft-1{left:-34px;bottom:-26px;animation:bob 6s ease-in-out infinite}
.ft-2{right:28px;top:-66px;animation:bob 7s ease-in-out -2s infinite}
@keyframes bob{50%{transform:translateY(-8px)}}

/* ---------- 01 工作原理 ---------- */
.sec-head.works h2{font-size:clamp(30px,3.1vw,42px);margin:6px 0 0}
.sec-head.works h2 em{font-style:normal;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}

/* 统一流程卡：环节轨道 + 九层管道 + 统计面板 */
.workflow{position:relative;margin-top:52px;padding:34px 44px 44px;border-radius:26px;border:1px solid var(--line);background:linear-gradient(180deg,#fff 0%,#F0F6FB 100%);box-shadow:0 40px 90px -70px rgba(10,19,34,.55),inset 0 1px 0 #fff}
.workflow::before{content:"";position:absolute;inset:0;z-index:0;border-radius:inherit;background-image:radial-gradient(rgba(10,19,34,.05) 1px,transparent 1.2px);background-size:20px 20px;-webkit-mask-image:radial-gradient(85% 45% at 8% 0%,#000,transparent 70%);mask-image:radial-gradient(85% 45% at 8% 0%,#000,transparent 70%);pointer-events:none}
.workflow::after{content:"";position:absolute;right:0;top:0;z-index:0;width:340px;height:280px;border-radius:50%;background:radial-gradient(circle at 100% 0%,rgba(119,183,229,.28),transparent 68%);pointer-events:none}
.workflow>*{position:relative;z-index:1}

.wf-bar{display:flex;align-items:center;justify-content:space-between;gap:20px;padding-bottom:20px;border-bottom:1px dashed var(--line-2)}
.wf-demo{display:inline-flex;align-items:center;gap:9px;font-size:12.5px;color:var(--mute)}
.wf-demo::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--save);box-shadow:0 0 0 4px rgba(11,155,106,.14);animation:wfPulse 2s infinite}
@keyframes wfPulse{50%{box-shadow:0 0 0 7px rgba(11,155,106,0)}}
.wf-facts{display:flex;gap:20px;font-size:12.5px;color:var(--mute)}
.wf-facts span{display:inline-flex;align-items:baseline;gap:4px;white-space:nowrap}
.wf-facts b{font-family:var(--mono);font-size:16px;font-weight:600;color:var(--ink);letter-spacing:-.02em}
.wf-facts span:last-child b{color:var(--save)}

/* 5 环节轨道 */
.wf-journey{position:relative;padding:32px 0 4px}
.wf-track{position:absolute;left:10%;right:10%;top:56px;height:2px;background:repeating-linear-gradient(90deg,rgba(0,118,191,.22) 0 5px,transparent 5px 10px)}
.wf-track i{position:absolute;left:0;top:0;height:2px;width:0;background:var(--grad);transition:width .6s cubic-bezier(.2,.8,.2,1)}
.wf-track i::after{content:"";position:absolute;right:-5px;top:-4px;width:10px;height:10px;border-radius:50%;background:var(--save);box-shadow:0 0 0 4px rgba(11,155,106,.18)}
.wf-steps{list-style:none;display:grid;grid-template-columns:repeat(5,1fr);gap:16px}
.wf-step{position:relative;text-align:center;cursor:pointer;padding:0 6px}
.wf-no{display:block;font-family:var(--mono);font-size:11px;line-height:14px;letter-spacing:.08em;color:var(--mute);margin-bottom:26px;transition:color .3s}
.wf-node{position:relative;width:46px;height:46px;margin:0 auto;border-radius:15px;border:1px solid var(--line);background:#fff;color:var(--ink-2);display:grid;place-items:center;transition:background .35s,border-color .35s,color .35s,box-shadow .35s,transform .35s}
.wf-node svg{width:19px;height:19px}
.wf-step b{display:block;font-size:14.5px;margin-top:12px;transition:color .3s}
.wf-step small{display:block;font-size:12px;line-height:1.45;color:var(--mute);margin-top:4px}
.wf-step:hover .wf-node{border-color:rgba(0,118,191,.42);transform:translateY(-2px)}
.wf-step.done .wf-no{color:var(--blue)}
.wf-step.done .wf-node{background:var(--blue-bg);border-color:rgba(0,118,191,.28);color:var(--blue)}
.wf-step.on .wf-no{color:var(--blue)}
.wf-step.on .wf-node{background:var(--grad);border-color:transparent;color:#fff;transform:translateY(-2px);box-shadow:0 14px 26px -14px rgba(0,77,161,.7),0 0 0 5px rgba(0,118,191,.09)}
.wf-step.on .wf-node::after{content:"";position:absolute;inset:-7px;border-radius:21px;border:1px solid rgba(0,118,191,.45);animation:wfRing 2.2s ease-out infinite}
.wf-step.on b{color:var(--blue-d)}
@keyframes wfRing{0%{opacity:.8;transform:scale(.92)}75%{opacity:0;transform:scale(1.14)}100%{opacity:0}}

/* 环节说明条 */
.wf-note{display:grid;grid-template-columns:auto minmax(0,1fr) auto;align-items:center;gap:14px;margin-top:18px;padding:12px 16px;border:1px solid var(--line);border-radius:12px;background:#fff}
.wf-note-k{font-size:11px;font-weight:600;color:var(--blue);background:var(--blue-bg);border-radius:999px;padding:3px 9px;white-space:nowrap}
.wf-note p{font-size:13.5px;color:var(--ink-2);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.wf-note code{font-family:var(--mono);font-size:11.5px;color:var(--blue-d);background:var(--paper);border:1px dashed var(--line-2);border-radius:8px;padding:5px 9px;white-space:nowrap;max-width:340px;overflow:hidden;text-overflow:ellipsis}
.wf-note.swap{animation:wfSwap .45s cubic-bezier(.2,.8,.2,1)}
@keyframes wfSwap{0%{opacity:0;transform:translateY(5px)}100%{opacity:1;transform:none}}
.f-foot{margin-top:28px;display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.feat{padding:34px;border:1px solid var(--line);border-radius:16px;background:var(--card);transition:transform .25s,box-shadow .25s}
.feat:hover{transform:translateY(-3px);box-shadow:0 24px 40px -28px rgba(10,19,34,.35)}
.feat .ico{width:42px;height:42px;border-radius:11px;background:var(--ink);color:#fff;display:grid;place-items:center;margin-bottom:18px}
.feat .ico svg{width:21px;height:21px}
.feat h3{font-size:18px;margin-bottom:6px}
.feat p{font-size:14.5px;color:var(--ink-2)}

/* ---------- 九层省钱管道（并入统一流程卡） ---------- */
.wf-save{margin-top:30px;padding-top:32px;border-top:1px dashed var(--line-2)}
.wf-sub{display:flex;justify-content:space-between;align-items:flex-end;gap:24px;margin-bottom:28px}
.wf-sub h3{font-size:26px;margin-top:6px;letter-spacing:-.02em}
.wf-sub p{color:var(--ink-2);font-size:14.5px;max-width:540px}
.wf-sub .wf-demo-note{color:var(--mute);font-size:12.5px;text-align:right;max-width:none}
.pipe-wrap{display:grid;grid-template-columns:1fr 1.25fr;gap:36px}
.layers{display:flex;flex-direction:column;gap:6px}
.layers .layer{animation:wfRise .5s cubic-bezier(.2,.8,.2,1) both}
.layers .layer:nth-child(2){animation-delay:.04s}
.layers .layer:nth-child(3){animation-delay:.08s}
.layers .layer:nth-child(4){animation-delay:.12s}
.layers .layer:nth-child(5){animation-delay:.16s}
.layers .layer:nth-child(6){animation-delay:.2s}
.layers .layer:nth-child(7){animation-delay:.24s}
.layers .layer:nth-child(8){animation-delay:.28s}
.layers .layer:nth-child(9){animation-delay:.32s}
@keyframes wfRise{from{opacity:0;transform:translateX(-10px)}to{opacity:1;transform:none}}
.layer{display:grid;grid-template-columns:44px 1fr auto;align-items:center;gap:16px;padding:15px 20px;border:1px solid var(--line);border-radius:12px;background:#fff;cursor:pointer;transition:background .2s,border-color .2s,box-shadow .2s;text-align:left;width:100%}
.layer:hover{border-color:var(--line-2);box-shadow:0 14px 28px -24px rgba(10,19,34,.55)}
.layer.on{background:linear-gradient(90deg,var(--blue-bg),#fff 88%);border-color:rgba(0,118,191,.36);box-shadow:0 0 0 4px rgba(0,118,191,.07),0 18px 32px -28px rgba(0,77,161,.55)}
.layer .n{font-family:var(--mono);font-size:13px;color:var(--mute)}
.layer.on .n{color:var(--blue)}
.layer .nm{font-size:15.5px;font-weight:600}
.layer .nm small{display:block;font-weight:400;font-size:12.5px;color:var(--mute);margin-top:1px}
.workflow .b-free{background:var(--save-bg);color:var(--save);border-color:rgba(11,155,106,.2)}
.workflow .b-pro{background:var(--blue-bg);color:var(--blue-d);border-color:rgba(0,118,191,.2)}
.detail{position:sticky;top:96px;align-self:start;border:1px solid var(--line);border-radius:18px;background:#fff;padding:38px;min-height:500px;display:flex;flex-direction:column;overflow:hidden;box-shadow:0 30px 60px -52px rgba(10,19,34,.55)}
.detail::before{content:"";position:absolute;left:0;right:0;top:0;height:3px;background:var(--grad)}
.d-top{display:flex;align-items:center;gap:14px}
.d-no{font-family:var(--mono);font-size:56px;line-height:1;font-weight:700;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;letter-spacing:-.04em}
.d-top h3{font-size:26px;letter-spacing:-.02em}
.detail p.desc{color:var(--ink-2);font-size:15.5px;margin:18px 0 22px;min-height:76px}
.d-sim{border:1px solid var(--line);border-radius:12px;padding:16px;background:var(--paper);font-family:var(--mono);font-size:12.5px}
.d-sim .row{display:flex;justify-content:space-between;padding:5px 0;color:var(--mute)}
.d-sim .row b{color:var(--ink);font-weight:500}
.d-sim .bar{height:8px;border-radius:99px;background:rgba(10,19,34,.07);overflow:hidden;margin:10px 0 4px}
.d-sim .bar i{display:block;height:100%;background:linear-gradient(90deg,var(--blue),var(--save));border-radius:99px;transition:width .7s cubic-bezier(.2,.8,.2,1)}
.d-tags{display:flex;gap:8px;flex-wrap:wrap;margin-top:auto;padding-top:22px}
.d-tags span{font-size:12px;color:var(--ink-2);border:1px dashed var(--line-2);padding:4px 10px;border-radius:999px}
.bench{margin-top:36px;padding-top:32px;border-top:1px dashed var(--line-2);display:grid;grid-template-columns:1fr 1.2fr;gap:36px}
.panel{border:1px solid var(--line);border-radius:18px;padding:32px;background:#fff;display:flex;flex-direction:column}
.panel-h{display:flex;justify-content:space-between;align-items:baseline;margin-bottom:20px;gap:12px}
.panel-h h4{font-size:17px}
.panel-h small{font-size:12px;color:var(--mute);font-family:var(--mono)}
.stack{display:flex;height:16px;border-radius:99px;overflow:hidden;gap:2px;margin-bottom:20px;background:var(--paper-2)}
.stack i{display:block;height:100%}
.legend{display:grid;grid-template-columns:1fr 1fr;gap:9px 18px;font-size:13px;color:var(--ink-2);flex:1;align-content:space-between}
.legend div{display:flex;align-items:center;gap:8px}
.legend s{width:9px;height:9px;border-radius:3px;flex:none;text-decoration:none}
.legend b{margin-left:auto;font-family:var(--mono);font-weight:500;color:var(--ink)}
.chart svg{width:100%;height:auto;display:block}
.chart-legend{display:flex;gap:18px;font-size:12.5px;color:var(--mute);margin-top:12px;flex-wrap:wrap}
.chart-legend span{display:flex;align-items:center;gap:7px}
.chart-legend i{width:16px;height:2px;border-radius:2px}
.note{font-size:12px;color:var(--mute);margin-top:14px}

/* ---------- ledger ---------- */
.ledger{display:grid;grid-template-columns:1.05fr 1fr;gap:80px;align-items:center}
.dash{background:var(--card);border:1px solid var(--line);border-radius:20px;padding:28px;box-shadow:0 30px 60px -40px rgba(10,19,34,.35)}
.dash .seg{margin-bottom:18px}
.stat-grp+.stat-grp{margin-top:18px}
.stat-grp h5{font-size:12px;color:var(--mute);font-weight:600;margin-bottom:9px;letter-spacing:.04em}
.stat-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.stat{display:flex;align-items:flex-start;gap:9px;padding:13px;border:1px solid var(--line);border-radius:12px;background:#fff;min-width:0}
.stat .si{width:28px;height:28px;border-radius:8px;background:var(--blue-bg);color:var(--blue);display:grid;place-items:center;flex:none}
.stat .si.g{background:var(--save-bg);color:var(--save)}
.stat .si.o{background:var(--warn-bg);color:var(--warn)}
.stat .si svg{width:15px;height:15px}
.stat small{display:block;font-size:11.5px;color:var(--mute);white-space:nowrap}
.stat b{display:block;font-family:var(--mono);font-size:18px;font-weight:600;letter-spacing:-.02em;line-height:1.3}
.stat b.g{color:var(--save)}
.stat em{display:block;font-style:normal;font-size:10.5px;color:var(--mute);margin-top:2px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.spark{margin-top:14px;border:1px solid var(--line);border-radius:12px;background:#fff;padding:14px 14px 6px}
.spark-h{display:flex;justify-content:space-between;font-size:12.5px;color:var(--mute);margin-bottom:6px}
.spark svg{width:100%;height:120px;display:block}
.ledger ul{list-style:none;display:flex;flex-direction:column;gap:18px;margin-top:28px}
.ledger li{display:grid;grid-template-columns:34px 1fr;gap:14px}
.ledger li .i{width:34px;height:34px;border-radius:9px;border:1px solid var(--line-2);display:grid;place-items:center;background:#fff}
.ledger li .i svg{width:17px;height:17px}
.ledger li b{display:block;font-size:16px}
.ledger li span{font-size:14.5px;color:var(--ink-2)}

/* ---------- 03 steps ---------- */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.step{border:1px solid var(--line);border-radius:18px;background:var(--card);padding:32px;display:flex;flex-direction:column}
.step-h{display:flex;align-items:center;gap:12px;margin-bottom:14px}
.step-h .k{font-family:var(--mono);font-size:12px;width:30px;height:30px;border-radius:50%;display:grid;place-items:center;background:var(--ink);color:#fff}
.step h3{font-size:19px}
.step p{font-size:14.5px;color:var(--ink-2);margin-bottom:18px}
.mock{margin-top:auto;border:1px solid var(--line);border-radius:12px;background:#fff;padding:14px;font-size:12.5px}
.mf{display:flex;flex-direction:column;gap:4px;margin-bottom:9px}
.mf label{font-size:11.5px;color:var(--mute)}
.mf div{border:1px solid var(--line-2);border-radius:7px;padding:6px 9px;font-family:var(--mono);font-size:12px;color:var(--ink-2);background:var(--paper);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.ptable{width:100%;border-collapse:collapse;font-family:var(--mono);font-size:11.5px}
.ptable th{text-align:left;font-weight:500;color:var(--mute);padding:5px 4px;border-bottom:1px solid var(--line);font-family:var(--sans)}
.ptable td{padding:7px 4px;border-bottom:1px dashed var(--line)}
.ptable td:not(:first-child),.ptable th:not(:first-child){text-align:right}
.disc{margin-top:10px;display:flex;gap:6px;flex-wrap:wrap}
.disc span{font-size:11px;padding:2px 8px;border-radius:999px;background:var(--paper-2);color:var(--ink-2)}
.vkey{display:flex;align-items:center;gap:8px;border:1px solid var(--line-2);border-radius:9px;padding:9px 10px;background:var(--paper);font-family:var(--mono);font-size:12.5px}
.vkey code{flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.vkey button{font-size:12px;padding:3px 9px;border-radius:6px;background:var(--ink);color:#fff;font-family:var(--sans)}
.vkey button:disabled{cursor:default}
.kv{display:grid;grid-template-columns:1fr 1fr;gap:8px;margin-top:10px}
.kv div{border:1px solid var(--line);border-radius:8px;padding:7px 9px}
.kv small{display:block;color:var(--mute);font-size:11px}
.kv b{font-family:var(--mono);font-size:12.5px;font-weight:500}
.steps-cta{margin-top:30px;display:flex;align-items:center;justify-content:space-between;gap:20px;padding:26px 32px;border-radius:16px;border:1px dashed var(--line-2);flex-wrap:wrap}
.steps-cta p{color:var(--ink-2);font-size:15px}
.steps-cta p b{color:var(--ink)}
.plans{background:var(--paper)}

/* ---------- download band / faq ---------- */
.dl{background:var(--night);color:#fff;border-radius:30px;padding:72px;display:grid;grid-template-columns:1.1fr 1fr;gap:64px;align-items:center;position:relative;overflow:hidden}
.dl::before{content:"";position:absolute;width:560px;height:560px;right:-160px;top:-260px;background:radial-gradient(circle,rgba(0,118,191,.45),transparent 62%)}
.dl h2{color:#fff;position:relative}
.dl p{color:#9fb0c6;position:relative;font-size:16px}
.dl .cta-row{position:relative;margin-bottom:0}
.dl .btn-ghost{border-color:rgba(255,255,255,.2);background:rgba(255,255,255,.04);color:#fff}
.dl .btn-ghost:hover{background:rgba(255,255,255,.1);border-color:rgba(255,255,255,.4)}
.dl .btn-primary{background:#fff;color:var(--ink)}
.os-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px;position:relative}
.os{border:1px solid var(--night-line);border-radius:16px;padding:22px;background:rgba(255,255,255,.03)}
.os-t{display:flex;align-items:center;gap:10px;font-weight:600;margin-bottom:12px}
.os-t svg{width:22px;height:22px}
.os div.v{display:flex;flex-direction:column;gap:6px}
.os div.v span{font-family:var(--mono);font-size:12.5px;color:#b4c3d6;display:flex;justify-content:space-between;padding:7px 10px;border-radius:8px;background:rgba(255,255,255,.04)}
.os div.v span em{font-style:normal;color:#6f86a4}
.os small{display:block;color:#6f86a4;font-size:12px;margin-top:10px}
.faq{display:grid;grid-template-columns:.8fr 1.2fr;gap:96px}

@media (max-width:1080px){
  .hero .wrap,.hero .wrap.x,.pipe-wrap,.bench,.ledger,.dl,.faq{grid-template-columns:1fr}
  .workflow{padding:30px}
  .wf-sub{flex-direction:column;align-items:flex-start;gap:12px}
  .detail{position:relative;top:0;min-height:0}
  .ft-1{left:10px}.ft-2{right:10px}
}
@media (max-width:720px){
  .steps,.f-foot{grid-template-columns:1fr}
  .stat-grid{grid-template-columns:1fr}
  .workflow{margin-top:32px;padding:22px 16px 26px;border-radius:20px}
  .wf-bar{flex-direction:column;align-items:flex-start;gap:10px}
  .wf-facts{gap:14px;flex-wrap:wrap}
  .wf-steps{display:flex;gap:12px;overflow-x:auto;padding:0 2px 8px;scroll-snap-type:x mandatory;-webkit-overflow-scrolling:touch}
  .wf-step{flex:0 0 112px;padding:0;scroll-snap-align:center}
  .wf-step small{display:none}
  .wf-track{display:none}
  .wf-note{display:flex;flex-wrap:wrap;align-items:center;gap:8px}
  .wf-note p{order:3;flex:1 0 100%;white-space:normal}
  .wf-note code{margin-left:auto}
  .wf-sub h3{font-size:22px}
  .wf-sub p{font-size:14px}
  .bench{padding-top:24px}
  .dl{padding:32px 24px}
  .os-grid{grid-template-columns:1fr}
  .topo-flow{grid-template-columns:1fr}
  .stage.s1,.stage.s2{margin-top:0}
  .t-conn{height:36px;flex-direction:column;align-items:center}
  .t-conn .c-line{width:2px;height:auto;flex:1;background:repeating-linear-gradient(180deg,rgba(0,118,191,.35) 0 4px,transparent 4px 8px)}
  .t-conn .c-line i{display:none}
  .t-conn .c-arrow{transform:rotate(90deg)}
  .t-left{flex-direction:row}
  .t-left .t-src{flex:1;flex-direction:column;text-align:center}
  .g-lg{grid-template-columns:repeat(8,1fr)}
  .ft-1,.ft-2{display:none}
}
.step{min-width:0}@media (max-width:1080px){.steps{grid-template-columns:1fr 1fr}}