/* Platform stylesheet isolated from legacy site.css. */
/* Hallmark · hero-only enrichment · existing layout and brand preserved. */
:root{--font-sans:Inter,"Noto Sans","Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
--obsidian:#0A0E13;--graphite:#141B23;--graphite-2:#1B2530;--steel:#2B3744;--gold:#D6B56F;--gold-lt:#E8D3A2;--bronze:#80601F;--bronze-d:#5F4614;
--ink:#0A0E13;--muted:#4A5360;--silver:#EEF0F2;--silver-2:#DDE1E6;--line:#D5DAE0;--ctl:#6B7683;--mdark:#B9C3CE;
--focus:0 0 0 2px #fff,0 0 0 5px #0A0E13;--focus-d:0 0 0 2px #0A0E13,0 0 0 5px #fff;--r:8px}
*{box-sizing:border-box}html{scroll-padding-top:72px}
@media(prefers-reduced-motion:no-preference){html{scroll-behavior:smooth}}
body{margin:0;font:16px/1.5 var(--font-sans);color:var(--ink);background:#fff}
a{color:var(--bronze)}a:hover{color:var(--bronze-d)}
a:focus-visible,summary:focus-visible{outline:none;box-shadow:var(--focus);border-radius:4px}
.on-dark a:focus-visible,.on-dark summary:focus-visible{box-shadow:var(--focus-d)}
.wrap{width:min(1280px,calc(100% - 32px));margin-inline:auto}
.skip{position:absolute;left:8px;top:-60px;background:#fff;color:#000;padding:12px 16px;z-index:999}.skip:focus{top:8px}
h1,h2,h3{margin:0;font-weight:600;letter-spacing:-.02em}h1{font-size:36px;line-height:1.12}h2{font-size:28px;line-height:1.2}h3{font-size:18px;line-height:1.4;letter-spacing:-.01em}p{margin:0}
.lead{font-size:18px;color:var(--muted);max-width:680px;margin-top:20px}
.eyebrow{font-size:14px;font-weight:600;letter-spacing:.08em;text-transform:uppercase;color:var(--bronze);margin-bottom:16px}
section{padding:48px 0}.alt{background:var(--silver)}
.sec-head{display:flex;flex-wrap:wrap;justify-content:space-between;align-items:end;gap:16px;margin-bottom:32px}
.sec-head p{color:var(--muted);margin-top:12px;max-width:680px}
h2.bar::before{content:"";display:block;width:48px;height:3px;background:linear-gradient(90deg,#B8924A,#E8D3A2);margin-bottom:16px}
.link-all{font-weight:600}
.btn{display:inline-flex;align-items:center;justify-content:center;min-height:48px;padding:0 24px;border-radius:var(--r);font-weight:600;text-decoration:none;border:2px solid var(--obsidian);transition:background 160ms ease,color 160ms ease}
.btn.dk{background:var(--obsidian);color:#fff}.btn.dk:hover{background:var(--bronze);border-color:var(--bronze);color:#fff}
.btn.ol{background:transparent;color:var(--obsidian)}.btn.ol:hover{background:var(--silver-2);color:var(--obsidian)}
.btn.gd{background:var(--gold);border-color:var(--gold);color:var(--obsidian)}.btn.gd:hover{background:var(--gold-lt);border-color:var(--gold-lt);color:var(--obsidian)}
.btn.gh{background:transparent;color:#fff;border-color:#8795A5}.btn.gh:hover{background:var(--graphite-2);color:#fff}
.on-dark{color:#fff;background:radial-gradient(900px 420px at 88% 0%,rgba(214,181,111,.15),transparent 60%),repeating-linear-gradient(90deg,rgba(255,255,255,.018) 0 1px,transparent 1px 4px),linear-gradient(160deg,#0A0E13,#141B23)}
.on-dark a{color:var(--gold-lt)}.on-dark a:hover{color:#fff}.on-dark .btn.gd,.on-dark .btn.gd:hover{color:var(--obsidian)}
.on-dark .eyebrow{color:var(--gold)}.on-dark .lead,.on-dark .sec-head p{color:var(--mdark)}
header.on-dark{background:var(--obsidian);border-bottom:1px solid var(--steel)}
.top{height:64px;display:flex;align-items:center;justify-content:space-between;gap:12px}
.logo{font-weight:700;font-size:22px;letter-spacing:-.02em;color:#fff!important;text-decoration:none;display:flex;align-items:baseline;gap:10px}
.logo i{font-style:normal;color:var(--gold)}.logo small{font-size:14px;font-weight:500;color:var(--mdark);letter-spacing:0;display:none}
.top-r{display:flex;gap:12px;align-items:center}.top-r .btn{min-height:44px;padding:0 16px}.top-r>a:first-child{display:none;color:#fff}
.m-menu summary{list-style:none;cursor:pointer;min-height:44px;min-width:44px;padding:0 16px;display:inline-flex;align-items:center;border:2px solid #8795A5;border-radius:var(--r);font-weight:600;color:#fff}
.m-menu summary::-webkit-details-marker{display:none}
.m-menu ul{position:absolute;left:0;right:0;top:64px;background:var(--graphite);border-bottom:1px solid var(--steel);margin:0;padding:8px 16px 16px;list-style:none;max-height:calc(100vh - 64px);overflow:auto;z-index:300}
.m-menu li a{display:flex;min-height:48px;align-items:center;color:#fff;text-decoration:none;border-bottom:1px solid var(--steel);font-weight:500}
.d-nav{display:none}
@media(max-width:767px){.top-r .btn{display:none}}
.hero{padding:48px 0}.hero-grid{display:grid;gap:40px}
.hero{--hero-shade-left:rgba(10,14,19,.80);--hero-shade-center:rgba(10,14,19,.66);--hero-shade-right:rgba(10,14,19,.28);--hero-panel-bg:rgba(10,14,19,.82)}
.hero.on-dark{background-image:linear-gradient(90deg,var(--hero-shade-left),var(--hero-shade-center) 48%,var(--hero-shade-right)),url("images/aluminum-industry-hero.webp");background-size:cover;background-position:center 58%;background-repeat:no-repeat}
.hero .panel{background:var(--hero-panel-bg)}
.hero.on-dark .lead,.hero .research-path p{color:var(--silver)}
@media(max-width:767px){.hero.on-dark{background-image:linear-gradient(var(--hero-shade-left),var(--hero-shade-left)),url("images/aluminum-industry-hero.webp");background-position:66% center}}
.cta{display:flex;flex-wrap:wrap;gap:12px;margin-top:32px}
.tasks{list-style:none;padding:0;margin:32px 0 0;display:grid;gap:8px}
.tasks a{display:flex;justify-content:space-between;min-height:48px;align-items:center;padding:0 16px;border:1px solid var(--steel);border-radius:var(--r);text-decoration:none;font-weight:600;color:#fff;background:rgba(255,255,255,.03)}
.tasks a:hover{border-color:var(--gold);color:var(--gold)}
.panel{background-color:#0F161D;border:1px solid var(--steel);border-radius:12px;padding:24px;background-image:linear-gradient(#1A242E 1px,transparent 1px),linear-gradient(90deg,#1A242E 1px,transparent 1px);background-size:32px 32px}
.panel ul{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(2,1fr);gap:12px}
.panel li{background:var(--graphite);border:1px solid var(--steel);border-radius:var(--r);padding:16px 12px;display:flex;flex-direction:column;gap:8px;font-weight:600;font-size:14px;line-height:1.35}
.panel .ico{color:var(--gold)}.panel .cap{margin-top:16px;font-size:14px;color:var(--mdark)}
.ico{width:40px;height:40px;flex:none}
.grid{list-style:none;margin:0;padding:0;display:grid;gap:16px}
.card{position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:20px;display:flex;flex-direction:column;gap:12px}
.card h3 a{color:var(--ink);text-decoration:none}.card h3 a::after{content:"";position:absolute;inset:0}
.card:hover{border-color:var(--bronze)}.card:focus-within{border-color:var(--obsidian)}
.card p{color:var(--muted)}.more{color:var(--bronze);font-weight:600;font-size:14px;margin-top:auto}
.tile{aspect-ratio:4/3;background:linear-gradient(145deg,#F8F9FA,#D9DEE3);border:1px solid var(--silver-2);border-radius:6px;display:grid;place-items:center;color:var(--obsidian)}
.tile.wide{aspect-ratio:16/10}.tile .ico{width:56px;height:56px}.card:hover .tile .ico{color:var(--bronze)}
.tags{font-size:14px!important;font-family:"IBM Plex Mono",Consolas,monospace}
.rows{list-style:none;margin:0;padding:0;display:grid;gap:16px}
.row{position:relative;display:flex;gap:16px;align-items:flex-start;padding:20px;background:#fff;border:1px solid var(--line);border-radius:var(--r)}
.row:hover{border-color:var(--bronze)}.row:hover .ico{color:var(--bronze)}
.row p{color:var(--muted);margin-top:4px}.row a{color:var(--ink);text-decoration:none}.row a::after{content:"";position:absolute;inset:0}
.on-dark .card{background:var(--graphite);border-color:var(--steel)}.on-dark .card h3 a{color:#fff}.on-dark .card p{color:var(--mdark)}
.on-dark .tile{background:#0E141B;border-color:var(--steel)}.on-dark .tile .ico{color:var(--gold)}.on-dark .card:hover{border-color:var(--gold)}
.note{background:#fff;border:1px dashed #7A8694;border-radius:var(--r);padding:20px;color:var(--muted)}.note strong{display:block;color:var(--ink);margin-bottom:4px}
.disc{font-size:14px;color:var(--muted);margin-top:16px}
.split{display:grid;gap:32px}
.box{background:var(--graphite);border-radius:12px;padding:24px;align-self:start;color:#fff}.box p{margin:12px 0 20px;color:var(--mdark)}
.steps{list-style:none;padding:0;margin:32px 0 0;display:grid;gap:12px;counter-reset:s}
.steps li{counter-increment:s;display:flex;gap:12px;align-items:center;border:1px solid var(--steel);border-radius:var(--r);padding:16px;font-weight:600;background:rgba(255,255,255,.03)}
.steps li::before{content:counter(s);display:grid;place-items:center;width:32px;height:32px;border-radius:50%;background:var(--gold);color:var(--obsidian);font-size:14px}
footer{background:var(--obsidian);color:#fff;border-top:1px solid var(--steel);padding:48px 0 32px}footer p{color:var(--mdark)}
.fgrid{display:grid;gap:32px}footer h2{font-size:16px;margin-bottom:12px;letter-spacing:0;color:var(--gold)}
footer ul{list-style:none;margin:0;padding:0;display:grid;gap:4px}footer li a{display:inline-flex;min-height:36px;align-items:center;color:#E4E8EC;text-decoration:none}footer li a:hover{color:var(--gold)}
footer a:focus-visible{box-shadow:var(--focus-d)}
.legal{margin-top:32px;padding-top:16px;border-top:1px solid var(--steel);font-size:14px}
@media(min-width:480px){.g8{grid-template-columns:1fr 1fr}}
@media(min-width:768px){.wrap{width:min(1280px,calc(100% - 48px))}h1{font-size:44px}h2{font-size:32px}section{padding:64px 0}.hero{padding:64px 0}
.g8,.g6{grid-template-columns:1fr 1fr}.rows,.fgrid{grid-template-columns:1fr 1fr}.card{padding:24px}.steps{grid-template-columns:repeat(3,1fr)}}
@media(min-width:1200px){.wrap{width:min(1280px,calc(100% - 64px))}h1{font-size:56px;line-height:1.08}h2{font-size:36px}section{padding:80px 0}.hero{padding:72px 0 80px}
.top{height:72px}.m-menu{display:none}.logo small,.top-r>a:first-child{display:inline}
.d-nav{display:block;position:sticky;top:0;z-index:100;background:var(--obsidian);border-top:1px solid var(--steel)}
.d-nav ul{list-style:none;margin:0;padding:0;display:flex;justify-content:space-between;height:56px}
.d-nav a{display:flex;align-items:center;height:100%;color:#E4E8EC;text-decoration:none;font-weight:500;border-bottom:2px solid transparent;white-space:nowrap}
.d-nav a:hover{color:var(--gold);border-bottom-color:var(--gold)}
.hero-grid{grid-template-columns:7fr 5fr;gap:48px;align-items:center}.tasks{grid-template-columns:repeat(3,1fr)}.tasks a{font-size:15px;padding:0 12px}
.g8{grid-template-columns:repeat(4,1fr)}.g6,.rows{grid-template-columns:repeat(3,1fr)}
.split{grid-template-columns:4fr 8fr;gap:48px}.fgrid{grid-template-columns:2fr 1.2fr 1fr 1fr}
.src{display:grid;grid-template-columns:7fr 5fr;gap:48px;align-items:center}.src .steps{margin-top:0;grid-template-columns:1fr}}
/* AlumHome: compact industry index, responsive navigation and varied content rhythm. */
html,body{overflow-x:clip}
h1,h2{font-family:Georgia,"Noto Serif",serif;font-weight:500;letter-spacing:-.035em}
h1{overflow-wrap:anywhere;min-width:0}
.hero-grid>*,.split>*,.src>*{min-width:0}
.btn{white-space:nowrap}
.panel{background:transparent;border:0;padding:0}
.panel ul{grid-template-columns:repeat(2,minmax(0,1fr))}
.panel li{border-radius:0;background:transparent;border:0;border-bottom:1px solid var(--steel);padding:16px 4px;flex-direction:row;align-items:center}
.panel .ico{width:32px;height:32px}
.g8,.g6{grid-template-columns:minmax(0,1fr)}
.directory-paths{display:grid;border-block:1px solid var(--line)}
.directory-path{padding:24px 0;display:block;text-decoration:none;color:var(--ink)}
.directory-path+.directory-path{border-top:1px solid var(--line)}
.directory-path:hover{color:var(--ink)}
.directory-path h3{font-size:22px;margin:8px 0}
.directory-path p{color:var(--muted);max-width:560px;margin-bottom:16px}
.path-label{color:var(--bronze);font-size:13px;font-weight:600}
.region-guide{background:#fff;padding:24px}
.region-guide ul,.brief-list{list-style:none;padding:0;margin:16px 0 24px}
.region-guide li,.brief-list li{padding:16px 0;border-top:1px solid var(--line);display:grid;gap:6px}
.region-guide li span,.brief-list li span{color:var(--muted)}
dialog{width:min(580px,calc(100% - 32px));max-height:85dvh;overflow:auto;border:1px solid var(--line);padding:28px;color:var(--ink);border-radius:12px}
dialog::backdrop{background:rgba(10,14,19,.7)}
dialog h2{font-size:28px;margin:16px 0}
dialog p{color:var(--muted);margin-bottom:20px}
.dialog-close{display:block;margin-left:auto;border:1px solid var(--line);background:#fff;padding:10px 16px;border-radius:4px;cursor:pointer;font:inherit}
.dialog-close:focus-visible{outline:2px solid var(--bronze);outline-offset:3px}
dialog .preview-label{color:var(--bronze);font-size:13px}
@media(min-width:480px){.g8{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(min-width:768px){.g6{grid-template-columns:repeat(2,minmax(0,1fr))}.directory-paths{grid-template-columns:repeat(2,minmax(0,1fr));gap:40px}.directory-path+.directory-path{border-top:0;border-left:1px solid var(--line);padding-left:40px}.region-guide li{grid-template-columns:140px minmax(0,1fr)}}
@media(min-width:1200px){.g8{grid-template-columns:repeat(4,minmax(0,1fr))}.g6{grid-template-columns:repeat(3,minmax(0,1fr))}}
@media(max-width:479px){h1{font-size:36px}.hero{padding:36px 0}.panel ul{gap:8px}.panel li{font-size:13px}.panel .ico{width:26px;height:26px}.tasks{margin-top:24px}.cta{margin-top:24px}.sec-head{margin-bottom:24px}.link-all{font-size:14px}footer li a{min-height:44px}.btn{padding-inline:16px}}
.panel-heading{font-family:var(--font-sans);font-size:20px;font-weight:600;letter-spacing:-.01em;margin-bottom:20px}
.research-path a{display:flex;gap:20px;padding:18px 0;border-top:1px solid var(--steel);color:#fff;text-decoration:none}
.research-path a:hover h3{color:var(--gold)}
.path-number{color:var(--gold);font-size:14px;padding-top:3px}
.research-path h3{font-size:17px}
.research-path p{font-size:14px;color:var(--mdark);margin-top:6px}

:root{--font-display:Georgia,"Noto Serif",serif}
h1,h2{font-family:var(--font-display)}
.page-hero{padding:48px 0}.page-hero h1{max-width:1000px}
.breadcrumbs{font-size:14px;margin-bottom:24px;color:var(--mdark)}
.body-copy{max-width:820px;color:var(--muted);font-size:18px;line-height:1.7}
.field-list{margin:0;background:#fff;border-top:1px solid var(--line)}
.field-list>div{padding:20px;display:grid;gap:8px;border-bottom:1px solid var(--line)}
.field-list dt{font-weight:600}.field-list dd{margin:0;color:var(--muted)}
.empty-state{border:1px solid var(--line);padding:28px;background:#fff}
.empty-state p{max-width:800px;margin:12px 0 24px;color:var(--muted)}
.anchor-grid{display:grid;gap:20px}.route-card{padding:24px;background:#fff;border:1px solid var(--line);scroll-margin-top:80px}
.route-card p{margin:12px 0;color:var(--muted)}.small{font-size:14px}
.inline-links{display:flex;flex-wrap:wrap;gap:20px;margin-top:24px}
.draft-form{max-width:900px;background:#fff;padding:24px;border:1px solid var(--line)}
.draft-form label{display:grid;gap:8px;font-weight:600;margin-bottom:20px}
.draft-form input,.draft-form textarea{width:100%;min-width:0;padding:12px;border:1px solid var(--ctl);border-radius:4px;font:inherit;color:var(--ink);background:#fff}
.draft-form input:focus-visible,.draft-form textarea:focus-visible{outline:2px solid var(--bronze);outline-offset:3px}
.draft-form textarea{resize:vertical}.form-hint{font-size:14px;color:var(--muted);margin-top:16px}.form-status{margin-top:12px}
button.btn{font:inherit;font-weight:600;cursor:pointer}
button.btn:focus-visible{outline:2px solid var(--bronze);outline-offset:3px}
.d-nav a[aria-current="page"],.m-menu a[aria-current="page"]{color:var(--gold)}
@media(min-width:768px){.field-list>div{grid-template-columns:220px minmax(0,1fr)}.anchor-grid,.form-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}.page-hero{padding:64px 0}}
@media(max-width:479px){.draft-form{padding:16px}.empty-state{padding:20px}.inline-links{flex-direction:column;gap:12px}}


/* Original image-first category sections; preserve silver / charcoal / gold palette. */
#h-prod,#h-ind{font-family:var(--font-sans);font-weight:600;letter-spacing:-.02em}
.tile{overflow:hidden}
.tile img{width:100%;height:100%;object-fit:cover;display:block}