:root{
  --ink:#0e1217;--ink-2:#161c25;--ink-3:#1f2733;
  --steel:#39414e;--steel-2:#5b6573;
  --parchment:#f3ede1;--parchment-2:#ece4d4;--cream:#faf6ee;
  --brass:#c2a05a;--brass-2:#d8b974;--brass-deep:#9c7d3e;
  --rust:#a8552f;--rust-2:#7a3e22;
  --line:rgba(194,160,90,.28);--line-dark:rgba(255,255,255,.10);
  --shadow:0 30px 70px -30px rgba(0,0,0,.6);
  --serif-en:Georgia,'Times New Roman',serif;
  --sans-en:'Segoe UI','Helvetica Neue',Arial,sans-serif;
  --serif-cn:'Noto Serif SC','Source Han Serif SC','SimSun',serif;
  --sans-cn:'Noto Sans SC','PingFang SC','Microsoft YaHei',sans-serif;
  --mono:'JetBrains Mono','Cascadia Mono',Consolas,monospace;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:84px}
body{font-family:var(--sans-cn),var(--sans-en),sans-serif;background:var(--cream);color:var(--ink);line-height:1.7;overflow-x:hidden;-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
::selection{background:var(--brass);color:var(--ink)}
body::before{content:"";position:fixed;inset:0;pointer-events:none;z-index:9999;opacity:.035;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='200' height='200'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='3'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");mix-blend-mode:multiply}
.wrap{max-width:1280px;margin:0 auto;padding:0 32px}
.kicker{font-family:var(--mono);font-size:11px;letter-spacing:.32em;text-transform:uppercase;color:var(--brass-deep);display:inline-flex;align-items:center;gap:12px}
.kicker::before{content:"";width:34px;height:1px;background:var(--brass)}
.kicker.light{color:var(--brass-2)}
.kicker.light::before{background:var(--brass-2)}

/* Note markers */
.note-corner{position:absolute;top:-8px;right:-12px;font-family:var(--serif-cn);font-size:9px;font-weight:700;color:#fff;background:var(--rust);width:18px;height:18px;line-height:18px;text-align:center;border-radius:50%;z-index:3;text-decoration:none}
.note-inline{display:inline-flex;align-items:center;justify-content:center;font-family:var(--serif-cn);font-size:10px;font-weight:700;font-style:normal;color:#fff;background:var(--rust);width:18px;height:18px;border-radius:50%;vertical-align:super;margin-left:6px;text-decoration:none;position:relative;top:-1px}

/* ===== HEADER ===== */
header{position:fixed;top:0;left:0;right:0;z-index:1000;transition:background .4s,box-shadow .4s,padding .4s;padding:18px 0}
header.scrolled{background:rgba(14,18,23,.96);backdrop-filter:blur(12px);box-shadow:0 1px 0 var(--line-dark);padding:12px 0}
.hdr-inner{display:flex;align-items:center;justify-content:space-between;gap:24px}
.brand{display:flex;align-items:center;gap:14px;color:#fff}
.brand-mark{height:44px;display:flex;align-items:center;position:relative}
.brand-mark img{height:100%;width:auto;object-fit:contain}
.brand-txt b{font-family:var(--serif-cn);font-size:17px;font-weight:700;letter-spacing:.04em;display:block;line-height:1.2}
.brand-txt span{font-family:var(--mono);font-size:9.5px;letter-spacing:.28em;color:var(--brass-2);text-transform:uppercase}
nav.main{display:flex;align-items:center;gap:26px}
nav.main a{font-size:14px;font-weight:500;color:rgba(255,255,255,.78);position:relative;padding:6px 0;transition:color .3s}
nav.main a::after{content:"";position:absolute;left:0;bottom:0;width:0;height:1px;background:var(--brass);transition:width .3s}
nav.main a:hover{color:#fff}
nav.main a:hover::after{width:100%}
.hdr-right{display:flex;align-items:center;gap:18px}
.lang-toggle{display:flex;align-items:center;border:1px solid var(--line-dark);border-radius:2px;overflow:hidden;font-family:var(--mono);font-size:11px}
.lang-toggle button,.lang-toggle span,.lang-toggle a{background:transparent;border:none;color:rgba(255,255,255,.6);padding:7px 12px;cursor:pointer;letter-spacing:.05em;transition:.3s;font-family:inherit}
.lang-toggle button.active,.lang-toggle span.active,.lang-toggle a.active{background:var(--brass);color:var(--ink);font-weight:600}
.lang-toggle button:not(.active):hover,.lang-toggle span:not(.active):hover,.lang-toggle a:not(.active):hover{color:#fff}
.menu-btn{display:none;background:none;border:1px solid var(--line-dark);color:#fff;width:42px;height:42px;cursor:pointer;font-size:18px}

/* ===== HERO ===== */
.hero{position:relative;min-height:82vh;display:flex;align-items:center;color:#fff;overflow:hidden}
.hero-bg{position:absolute;inset:0;z-index:-2}
.hero-bg img{width:100%;height:100%;object-fit:cover;filter:brightness(.42) contrast(1.08) saturate(.9)}
.hero-bg::after{content:"";position:absolute;inset:0;background:linear-gradient(115deg,rgba(14,18,23,.92) 0%,rgba(14,18,23,.7) 40%,rgba(14,18,23,.55) 100%),linear-gradient(0deg,rgba(14,18,23,.95) 0%,transparent 35%)}
.hero-rail{position:absolute;top:0;bottom:0;left:5%;width:1px;background:linear-gradient(180deg,transparent,var(--line),transparent);z-index:1}
.hero-rail.r2{left:auto;right:5%}
.hero-content{position:relative;z-index:2;padding:100px 0 50px}
.hero .kicker{margin-bottom:28px;opacity:0;animation:fadeUp .9s .2s forwards}
.hero h1{font-family:var(--serif-cn);font-weight:900;font-size:clamp(38px,6.5vw,82px);line-height:1.02;letter-spacing:-.01em;margin-bottom:8px;opacity:0;animation:fadeUp .9s .35s forwards}
.hero h1 .en{display:block;font-family:var(--serif-en);font-style:italic;font-weight:400;font-size:.42em;color:var(--brass-2);letter-spacing:.01em;margin-top:14px}
.hero .lead{max-width:560px;font-size:17px;color:rgba(255,255,255,.78);margin-top:28px;opacity:0;animation:fadeUp .9s .5s forwards}
.hero-stats{display:flex;gap:44px;margin-top:42px;flex-wrap:wrap;opacity:0;animation:fadeUp .9s .65s forwards}
.stat{position:relative}
.stat b{font-family:var(--serif-en);font-size:42px;color:var(--brass-2);line-height:1}
.stat b sup{font-size:.42em;color:var(--brass-2);font-family:var(--mono);font-weight:500;margin-left:4px}
.stat span{display:block;font-size:13px;color:rgba(255,255,255,.6);margin-top:8px;letter-spacing:.04em}
.hero-scroll{position:absolute;bottom:20px;left:50%;transform:translateX(-50%);z-index:2;display:flex;flex-direction:column;align-items:center;gap:8px;font-family:var(--mono);font-size:10px;letter-spacing:.3em;color:rgba(255,255,255,.5)}
.hero-scroll .line{width:1px;height:36px;background:linear-gradient(180deg,var(--brass),transparent);animation:scrollPulse 2.2s infinite}
@keyframes fadeUp{from{opacity:0;transform:translateY(28px)}to{opacity:1;transform:translateY(0)}}
@keyframes scrollPulse{0%,100%{transform:scaleY(1);opacity:1}50%{transform:scaleY(.5);opacity:.4}}

/* ===== SECTION SHELL ===== */
section{padding:100px 0;position:relative}
.sec-head{margin-bottom:56px;max-width:760px}
.sec-head .kicker{margin-bottom:18px}
.sec-head h2{font-family:var(--serif-cn);font-weight:700;font-size:clamp(30px,4.4vw,52px);line-height:1.1;letter-spacing:-.01em}
.sec-head h2 .en{display:block;font-family:var(--serif-en);font-style:italic;font-weight:400;font-size:.5em;color:var(--brass-deep);margin-top:10px}
.sec-head p{margin-top:20px;font-size:16px;color:var(--steel-2);max-width:620px}
.dark-section{background:var(--ink-2);color:#fff}
.dark-section .sec-head h2 .en{color:var(--brass-2)}
.dark-section .sec-head p{color:rgba(255,255,255,.65)}

/* ===== ABOUT ===== */
.about{background:var(--parchment)}
.about-grid{max-width:none}
.about-head-row{display:flex;align-items:flex-start;gap:40px;flex-wrap:wrap}
.about-head-row h2{flex:1;min-width:280px}
.about-badge-inline{flex:none;background:var(--ink);color:#fff;padding:26px 34px;text-align:center;border:1px solid var(--brass);position:relative}
.about-badge-inline b{font-family:var(--serif-en);font-size:52px;color:var(--brass-2);line-height:1;display:block}
.about-badge-inline span{display:block;font-size:12px;letter-spacing:.1em;margin-top:8px;color:rgba(255,255,255,.7)}
.about-text h2{font-family:var(--serif-cn);font-size:clamp(28px,4vw,44px);font-weight:700;line-height:1.15;margin-bottom:8px}
.about-text h2 .accent{color:var(--brass-deep)}
.about-text .en-sub{font-family:var(--serif-en);font-style:italic;color:var(--brass-deep);font-size:20px;display:block;margin-bottom:26px}
.about-text p{color:var(--steel);font-size:16px;margin-bottom:18px;max-width:680px}
.about-feats{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;margin-top:40px}
.feat-item{display:flex;gap:14px;align-items:flex-start}
.feat-item .ic{flex:none;width:38px;height:38px;border:1px solid var(--brass);display:grid;place-items:center;color:var(--brass-deep);font-family:var(--mono);font-size:13px;font-weight:600}
.feat-item b{font-size:15px;display:block;margin-bottom:2px}
.feat-item span{font-size:13px;color:var(--steel-2)}

/* ===== PRODUCTS ===== */
.products{background:var(--cream);position:relative}
.products::before{content:"";position:absolute;top:0;left:0;right:0;height:1px;background:linear-gradient(90deg,transparent,var(--line),transparent)}
.quality-notice{background:var(--ink);color:#fff;border:1px solid var(--brass);padding:30px 34px;display:flex;gap:24px;align-items:flex-start;margin-bottom:56px;position:relative}
.quality-notice .qn-icon{flex:none;width:56px;height:56px;border:1px solid var(--brass);display:grid;place-items:center;color:var(--brass-2);font-family:var(--serif-cn);font-size:26px;font-weight:900}
.quality-notice .qn-body{flex:1}
.quality-notice .qn-label{font-family:var(--mono);font-size:10px;letter-spacing:.3em;color:var(--brass-2);text-transform:uppercase;margin-bottom:8px}
.quality-notice p{font-size:15px;color:rgba(255,255,255,.85);line-height:1.8}
.quality-notice .qn-deal{color:var(--brass-2);font-weight:600;display:inline-flex;align-items:center;gap:4px;margin-top:10px;font-family:var(--serif-cn);font-size:18px}
.star{color:var(--rust);font-weight:700}
.product-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(290px,1fr));gap:26px}
.pcard{background:#fff;border:1px solid #e6ddc9;overflow:hidden;transition:transform .4s,box-shadow .4s,border-color .4s;display:flex;flex-direction:column}
.pcard:hover{transform:translateY(-8px);box-shadow:var(--shadow);border-color:var(--brass)}
.pcard-img{position:relative;aspect-ratio:4/3;overflow:hidden;background:var(--parchment-2)}
.pcard-img img{width:100%;height:100%;object-fit:cover;transition:transform .6s;filter:saturate(.9)}
.pcard:hover .pcard-img img{transform:scale(1.07)}
.pcard-img .pnum{position:absolute;top:14px;left:14px;font-family:var(--mono);font-size:11px;color:var(--ink);background:rgba(243,237,225,.9);padding:4px 10px;letter-spacing:.1em}
.pcard-img .pmat{display:none;position:absolute;bottom:0;left:0;right:0;padding:10px 14px;background:linear-gradient(0deg,rgba(14,18,23,.85),transparent);font-family:var(--mono);font-size:10px;letter-spacing:.2em;color:var(--brass-2);text-transform:uppercase}
.pcard-body{padding:22px 24px 26px;flex:1;display:flex;flex-direction:column}
.pcard-body h3{font-family:var(--serif-cn);font-size:21px;font-weight:700;margin-bottom:4px}
.pcard-body .en-name{font-family:var(--serif-en);font-style:italic;color:var(--brass-deep);font-size:14px;margin-bottom:12px;display:block}
.pcard-body p{font-size:14px;color:var(--steel);margin-bottom:16px;flex:1}
.pcard-tags{display:flex;flex-wrap:wrap;gap:6px}
.pcard-tags span{font-family:var(--mono);font-size:10px;letter-spacing:.05em;color:var(--brass-deep);background:rgba(194,160,90,.12);padding:3px 8px;border:1px solid var(--line)}
.variant-btns{position:absolute;bottom:0;left:0;right:0;display:flex;gap:0;background:rgba(14,18,23,.88);padding:8px;z-index:2}
.variant-btns .vbtn{flex:1;padding:7px 4px;font-family:var(--mono);font-size:10px;letter-spacing:.05em;color:rgba(255,255,255,.55);background:transparent;border:1px solid rgba(255,255,255,.12);cursor:pointer;transition:all .25s;text-align:center}
.variant-btns .vbtn:hover{color:#fff;border-color:var(--brass-2)}
.variant-btns .vbtn.active{color:var(--ink);background:var(--brass-2);border-color:var(--brass-2);font-weight:600}

/* ===== COMMITMENT ===== */
.commit{background:var(--ink);color:#fff;overflow:hidden}
.commit-grid{display:grid;grid-template-columns:1fr 1.05fr;gap:70px;align-items:center}
.commit-visual{position:relative}
.commit-visual img{width:100%;aspect-ratio:4/3;object-fit:cover}
.commit-visual .cv-overlay{position:absolute;inset:0;border:1px solid var(--line-dark);margin:18px;pointer-events:none}
.commit-visual .seal{position:absolute;bottom:-30px;left:30px;background:var(--brass);color:var(--ink);padding:22px 30px;text-align:center;max-width:240px}
.commit-visual .seal b{font-family:var(--serif-cn);font-size:28px;display:block;line-height:1.1}
.commit-visual .seal span{font-family:var(--mono);font-size:10px;letter-spacing:.2em;text-transform:uppercase;display:block;margin-top:8px}
.commit-text .kicker{margin-bottom:20px}
.commit-text h2{font-family:var(--serif-cn);font-size:clamp(28px,4vw,44px);font-weight:700;line-height:1.15;margin-bottom:24px}
.commit-text h2 .accent{color:var(--brass-2)}
.commit-text .warn{border-left:2px solid var(--rust);padding:6px 0 6px 22px;margin-bottom:26px;color:rgba(255,255,255,.8);font-size:15px}
.commit-text .pledge{background:rgba(194,160,90,.08);border:1px solid var(--line);padding:24px 28px;margin-bottom:24px;position:relative}
.commit-text .pledge .pl-label{font-family:var(--mono);font-size:10px;letter-spacing:.3em;color:var(--brass-2);text-transform:uppercase;margin-bottom:10px}
.commit-text .pledge p{font-size:17px;line-height:1.8}
.commit-text .pledge .hl{color:var(--brass-2);font-weight:600;font-family:var(--serif-cn);font-size:19px}
.commit-feats{display:flex;flex-direction:column;gap:16px;margin-top:8px}
.commit-feats .cf{display:flex;gap:14px;align-items:flex-start}
.commit-feats .cf .ic{flex:none;width:32px;height:32px;border:1px solid var(--brass);display:grid;place-items:center;color:var(--brass-2)}
.commit-feats .cf b{font-size:15px}
.commit-feats .cf p{font-size:13px;color:rgba(255,255,255,.6)}

/* ===== COMPARE CHART ===== */
.compare{background:var(--ink-2)}
.chart-box{background:var(--ink);border:1px solid var(--line-dark);padding:36px 40px 40px;position:relative}
.chart-top{display:flex;justify-content:space-between;align-items:center;margin-bottom:32px;flex-wrap:wrap;gap:16px}
.chart-toggle{display:flex;border:1px solid var(--line-dark);border-radius:2px;overflow:hidden}
.chart-toggle button{background:transparent;border:none;color:rgba(255,255,255,.5);padding:10px 20px;cursor:pointer;font-family:var(--mono);font-size:12px;letter-spacing:.08em;transition:.3s}
.chart-toggle button.active{background:var(--brass);color:var(--ink);font-weight:600}
.chart-toggle button:not(.active):hover{color:#fff}
.chart-price-tag{font-family:var(--mono);font-size:12px;color:rgba(255,255,255,.6);letter-spacing:.05em;border:1px solid var(--line-dark);padding:8px 16px}
.chart-price-tag b{color:var(--brass-2);font-size:16px;font-family:var(--serif-en)}
.chart-canvas{position:relative;height:320px;display:flex;align-items:flex-end;justify-content:space-around;gap:16px;padding-left:48px;border-left:1px solid var(--line-dark);border-bottom:1px solid var(--line-dark)}
.chart-grid{position:absolute;inset:0;pointer-events:none}
.chart-grid .gline{position:absolute;left:0;right:0;border-top:1px dashed rgba(255,255,255,.07)}
.chart-grid .glabel{position:absolute;left:-48px;top:-7px;font-family:var(--mono);font-size:10px;color:rgba(255,255,255,.35);white-space:nowrap}
.chart-grid .baseline{border-top:1px dashed var(--brass)}
.bar-group{flex:1;display:flex;flex-direction:column;align-items:center;height:100%;justify-content:flex-end;position:relative;max-width:160px}
.bar-full{width:54%;height:100%;display:flex;flex-direction:column;justify-content:flex-end;position:relative}
.bar-missing{width:100%;background:repeating-linear-gradient(45deg,rgba(168,85,47,.3) 0,rgba(168,85,47,.3) 4px,transparent 4px,transparent 8px);border-top:1px dashed var(--rust);transition:height .8s cubic-bezier(.4,0,.2,1);position:relative;overflow:visible}
.bar-missing .miss-label{position:absolute;top:3px;left:50%;transform:translateX(-50%);font-family:var(--mono);font-size:9px;color:var(--rust);white-space:nowrap}
.bar-fill{width:100%;transition:height .8s cubic-bezier(.4,0,.2,1);position:relative}
.bar-fill.bad{background:linear-gradient(180deg,var(--rust),var(--rust-2))}
.bar-fill.good{background:linear-gradient(180deg,var(--brass-2),var(--brass-deep))}
.bar-val{position:absolute;top:-28px;left:50%;transform:translateX(-50%);font-family:var(--serif-en);font-size:18px;white-space:nowrap;transition:color .4s}
.bar-fill.bad .bar-val{color:var(--rust)}
.bar-fill.good .bar-val{color:var(--brass-2)}
.chart-xlabels{display:flex;justify-content:space-around;padding:12px 16px 0 48px;gap:16px}
.chart-xlabels .xlabel{flex:1;text-align:center;max-width:160px;font-size:11.5px;color:rgba(255,255,255,.55);line-height:1.4}
.chart-xlabels .xlabel.good{color:var(--brass-2);font-weight:600}
.chart-note{margin-top:18px;font-size:12px;color:rgba(255,255,255,.4)}

/* ===== FACTORY ===== */
.factory{background:var(--parchment)}
.factory-grid{display:grid;grid-template-columns:1.3fr 1fr;gap:26px;margin-top:20px}
.factory-main{position:relative;overflow:hidden}
.factory-main img{width:100%;height:100%;min-height:480px;object-fit:cover}
.factory-main .fcap{position:absolute;left:0;bottom:0;background:var(--ink);color:#fff;padding:18px 26px;max-width:80%}
.factory-main .fcap b{font-family:var(--serif-cn);font-size:19px;display:block}
.factory-main .fcap span{font-size:13px;color:rgba(255,255,255,.6)}
.factory-side{display:grid;grid-template-rows:1fr 1fr;gap:26px}
.factory-side .fcell{position:relative;overflow:hidden}
.factory-side .fcell img{width:100%;height:100%;object-fit:cover;min-height:227px}
.factory-side .fcell .fcap{position:absolute;left:0;bottom:0;background:var(--ink);color:#fff;padding:12px 18px}
.factory-side .fcell .fcap b{font-family:var(--serif-cn);font-size:15px;display:block}
.factory-side .fcell .fcap span{font-size:11px;color:rgba(255,255,255,.6)}
.factory-strip{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin-top:26px}
.material-show{margin-top:30px;background:#fff;border:1px solid var(--line);overflow:hidden}
.material-show .mat-img{width:100%;height:auto;display:block}
.material-show .mat-body{padding:24px 28px}
.material-show .mat-body h3{font-family:var(--serif-cn);font-size:19px;font-weight:700;margin-bottom:6px;color:var(--ink)}
.material-show .mat-body .mat-label{font-family:var(--mono);font-size:10px;letter-spacing:.3em;color:var(--brass-deep);text-transform:uppercase;margin-bottom:14px;display:block}
.material-show .mat-body p{font-size:14px;color:var(--steel);line-height:1.8}
.material-show .mat-feats{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}
.material-show .mat-feats span{font-family:var(--mono);font-size:10px;letter-spacing:.05em;color:var(--brass-deep);background:rgba(194,160,90,.12);padding:3px 8px;border:1px solid var(--line)}
.fstat{background:#fff;border:1px solid #e6ddc9;padding:26px 24px;text-align:center}
.fstat b{font-family:var(--serif-en);font-size:40px;color:var(--brass-deep);line-height:1}
.fstat span{display:block;font-size:13px;color:var(--steel-2);margin-top:10px;letter-spacing:.04em}

/* ===== CONTACT ===== */
.contact{background:var(--ink-2);color:#fff}
.contact-grid{display:grid;grid-template-columns:1.2fr 1fr;gap:64px;align-items:start}
.contact-info .kicker{margin-bottom:20px}
.contact-info h2{font-family:var(--serif-cn);font-size:clamp(28px,4vw,44px);font-weight:700;line-height:1.15;margin-bottom:30px}
.contact-info h2 .accent{color:var(--brass-2)}
.purchase-rules{display:flex;flex-direction:column;gap:2px;margin-bottom:36px}
.prule{display:flex;gap:16px;align-items:center;padding:18px 0;border-bottom:1px solid var(--line-dark)}
.prule:last-child{border-bottom:none}
.prule .ic{flex:none;width:40px;height:40px;border:1px solid var(--brass);display:grid;place-items:center;color:var(--brass-2);font-family:var(--mono);font-weight:600}
.prule .txt b{font-size:16px;display:block}
.prule .txt span{font-size:13px;color:rgba(255,255,255,.55)}
.prule.deal .ic{background:var(--rust);border-color:var(--rust);color:#fff}
.qr-card{background:var(--cream);color:var(--ink);text-align:center;border:1px solid var(--brass);position:relative}
.qr-card .qc-glow{position:absolute;inset:0;background:radial-gradient(circle at top,rgba(194,160,90,.12),transparent 60%);pointer-events:none}
.qr-card .qc-head{background:var(--ink);color:#fff;padding:22px 24px}
.qr-card .qc-head .kicker{justify-content:center;color:var(--brass-2);margin-bottom:10px}
.qr-card .qc-head .kicker::before{background:var(--brass-2)}
.qr-card .qc-head h3{font-family:var(--serif-cn);font-size:22px;font-weight:700}
.qr-card .qc-body{padding:30px 30px 34px;position:relative}
.qr-card .qr-img{width:230px;height:230px;margin:0 auto 22px;background:#fff;border:1px solid #e6ddc9;padding:14px}
.qr-card .qr-img img{width:100%;height:100%;object-fit:contain}
.qr-card .qc-body p{font-size:14px;color:var(--steel);line-height:1.8}
.qr-card .qc-body .free{color:var(--brass-deep);font-weight:600;font-family:var(--serif-cn);font-size:17px;display:block;margin-bottom:6px}

/* ===== FOOTER ===== */
footer{background:var(--ink);color:rgba(255,255,255,.6);padding:70px 0 36px;border-top:1px solid var(--line-dark)}
.foot-top{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:50px;margin-bottom:50px}
.foot-brand{display:flex;align-items:center;gap:14px;margin-bottom:20px}
.foot-brand .brand-mark{height:40px}
.foot-brand b{color:#fff;font-family:var(--serif-cn);font-size:16px}
.foot-brand span{display:block;font-family:var(--mono);font-size:9px;color:var(--brass-2);letter-spacing:.25em;text-transform:uppercase}
.foot-top p{font-size:14px;max-width:340px;line-height:1.8}
.foot-col h4{font-family:var(--mono);font-size:11px;letter-spacing:.25em;text-transform:uppercase;color:var(--brass-2);margin-bottom:18px}
.foot-col a{display:block;font-size:14px;padding:5px 0;color:rgba(255,255,255,.6);transition:.3s}
.foot-col a:hover{color:var(--brass-2)}
.foot-bottom{border-top:1px solid var(--line-dark);padding-top:28px}
.foot-notes{font-size:12.5px;color:rgba(255,255,255,.5);line-height:1.9;margin-bottom:18px}
.foot-notes .note-label{color:var(--brass-2);font-family:var(--mono);font-size:11px;letter-spacing:.1em}
.foot-copy{font-size:12px;color:rgba(255,255,255,.35);display:flex;justify-content:space-between;flex-wrap:wrap;gap:14px}
.foot-copy a:hover{color:var(--brass-2)}

/* Reveal */
.reveal{opacity:0;transform:translateY(36px);transition:opacity .8s,transform .8s}
.reveal.in{opacity:1;transform:none}

/* ===== RESPONSIVE ===== */
@media(max-width:980px){
  nav.main{display:none}
  .menu-btn{display:grid;place-items:center}
  nav.main.open{display:flex;position:fixed;top:74px;left:0;right:0;flex-direction:column;background:rgba(14,18,23,.98);padding:24px 32px;gap:6px;backdrop-filter:blur(12px)}
  nav.main.open a{padding:12px 0;font-size:16px;border-bottom:1px solid var(--line-dark)}
  .about-grid,.commit-grid,.contact-grid{grid-template-columns:1fr;gap:48px}
  .about-feats{grid-template-columns:1fr 1fr}
  .factory-grid{grid-template-columns:1fr}
  .factory-side{grid-template-rows:auto auto}
  .factory-strip{grid-template-columns:1fr 1fr}
  .foot-top{grid-template-columns:1fr;gap:32px}
  .chart-canvas{height:260px}
}
@media(max-width:640px){
  .wrap{padding:0 22px}
  section{padding:72px 0}
  .hero-rail{display:none}
  .hero{min-height:auto;padding-top:100px}
  .hero-stats{gap:28px}
  .stat b{font-size:34px}
  .about-feats{grid-template-columns:1fr}
  .factory-strip{grid-template-columns:1fr 1fr}
  .quality-notice{flex-direction:column;padding:24px}
  .chart-box{padding:24px 20px}
  .chart-canvas{padding-left:36px;height:220px}
  .chart-grid .glabel{left:-36px;font-size:9px}
  .chart-xlabels{padding-left:36px;font-size:10px}
  .chart-xlabels .xlabel{font-size:10px}
}


/* ===== SHARED ARTICLE PAGES · 与首页同一套墨黑/黄铜视觉 ===== */
.page-hero{background:var(--ink);color:#fff;padding:126px 0 58px;position:relative;overflow:hidden}
.page-hero::before{content:"";position:absolute;inset:0;background:linear-gradient(115deg,rgba(14,18,23,.96) 0%,rgba(14,18,23,.78) 45%,rgba(14,18,23,.5) 100%),radial-gradient(circle at 82% 18%,rgba(194,160,90,.22),transparent 62%)}
.page-hero::after{content:"";position:absolute;left:6%;top:0;bottom:0;width:1px;background:linear-gradient(180deg,transparent,var(--line),transparent)}
.page-hero .wrap{position:relative;z-index:2}
.page-hero h1{font-family:var(--serif-cn);font-weight:900;font-size:clamp(30px,4.6vw,56px);line-height:1.18;letter-spacing:-.01em;margin:16px 0 18px}
.page-hero h1 .en{display:block;font-family:var(--serif-en);font-style:italic;font-weight:400;font-size:.4em;color:var(--brass-2);letter-spacing:.01em;margin-top:12px}
.page-hero .lede{max-width:760px;color:rgba(255,255,255,.82);font-size:17px;line-height:1.9}
.crumb{font-family:var(--mono);font-size:11px;letter-spacing:.2em;text-transform:uppercase;color:var(--brass-2)}
.crumb a{color:var(--brass-2);text-decoration:none}
.article{padding:62px 0 92px;background:var(--cream)}
.article .wrap{max-width:960px}
.article h2{font-family:var(--serif-cn);font-size:26px;font-weight:700;margin:48px 0 16px;padding-left:16px;border-left:3px solid var(--brass)}
.article h3{font-family:var(--serif-cn);font-size:19px;font-weight:700;margin:26px 0 10px}
.article p{font-size:16px;line-height:1.95;color:var(--ink-3);margin-bottom:16px}
.article strong{color:var(--ink);font-weight:700}
.conclusion{background:#fff;border:1px solid var(--line);border-left:4px solid var(--rust);padding:24px 28px;margin:0 0 36px;box-shadow:var(--shadow)}
.conclusion p{margin:0;font-size:17px;line-height:1.9;color:var(--ink)}
table.data{width:100%;border-collapse:collapse;margin:22px 0;font-size:15px}
table.data th,table.data td{border:1px solid var(--line);padding:12px 14px;text-align:left;line-height:1.75;vertical-align:top}
table.data th{background:var(--parchment);font-family:var(--serif-cn);font-weight:700}
table.data tr:hover td{background:rgba(194,160,90,.07)}
table.data .good{color:var(--rust);font-weight:700}
.qa{border-top:1px solid var(--line);padding:20px 0 4px}
.qa h3{margin:0 0 8px;font-size:18px;color:var(--ink)}
.qa p{margin:0 0 16px;font-size:15.5px}
.note{font-size:13px;color:var(--steel-2);line-height:1.85;margin-top:12px}
.terms{background:var(--parchment);padding:22px 26px;margin:20px 0;border-left:3px solid var(--brass)}
.terms p{font-size:15px;line-height:1.9;color:var(--ink-3)}
.terms p:last-child{margin-bottom:0}
.cta-band{background:var(--ink);color:#fff;padding:38px 0}
.cta-band .wrap{max-width:960px}
.cta-band h2{color:#fff;border:0;padding:0;margin:0 0 12px;font-family:var(--serif-cn);font-size:24px}
.cta-band p{color:rgba(255,255,255,.78);font-size:15.5px;line-height:1.9;max-width:700px}
.cta-band a{display:inline-block;margin:14px 10px 0 0;background:var(--brass);color:var(--ink);padding:10px 20px;text-decoration:none;font-size:14px}
.cta-band a.ghost{background:transparent;border:1px solid var(--line-dark);color:var(--brass-2)}
.inl{color:var(--brass-deep);text-decoration:underline;text-underline-offset:3px}
.article ul,.article ol{margin:0 0 20px 22px}
.article li{font-size:16px;line-height:1.9;margin-bottom:9px;color:var(--ink-3)}
.article figure{margin:22px 0;display:grid;grid-template-columns:repeat(2,1fr);gap:12px}
.article figure img{width:100%;border:1px solid var(--line);display:block}
nav.main a.muted{color:rgba(255,255,255,.42)}
nav.main a.muted{color:rgba(255,255,255,.42)}
.page-foot{background:var(--ink);color:rgba(255,255,255,.7);padding:34px 0;font-size:13px;line-height:1.9}
.page-foot .wrap{display:flex;justify-content:space-between;gap:24px;flex-wrap:wrap}
.page-foot a{color:rgba(255,255,255,.85);text-decoration:none;margin-right:16px}
.page-foot .fp-links{display:flex;flex-wrap:wrap;gap:4px 0;max-width:520px}
@media(max-width:980px){nav.main{display:none}.page-hero{padding-top:104px}.article figure{grid-template-columns:1fr}}
@media(max-width:640px){.page-hero h1{font-size:30px}.article{padding:44px 0 64px}.article .wrap{padding:0 18px}table.data{font-size:13px}.conclusion{padding:18px 20px}}

/* 锚点定位：避开固定页头 */
.article [id]{scroll-margin-top:104px}