/*
 * 江阴市长达钢铁有限公司 | 工业脊梁全站样式
 * 统一导航、栅格、组件、动画与响应式规范，支撑首页与全部子页。
 */

/* =====================================================================
   1. 设计令牌 (Design Tokens)
   ===================================================================== */
:root {
    --color-primary: #374151;           /* 钢铁灰主色 */
    --color-primary-dark: #111827;      /* 深色底 */
    --color-primary-soft: #1F2937;      /* 辅助深灰蓝 */
    --color-accent: #EA580C;            /* 熔炉橙 */
    --color-accent-2: #CC0000;          /* 工业红 */
    --color-accent-soft: #FF7A1A;
    --color-surface: #FFFFFF;           /* 卡片背景 */
    --color-surface-muted: #F8FAFC;     /* 次级背景 */
    --color-surface-contrast: #0F172A;  /* 深色卡片 */
    --color-background: #F3F4F6;        /* 页面浅灰底 */
    --color-background-light: #FFFFFF;
    --color-background-gray: #E9EEF3;
    --color-blueprint: #0B1423;         /* 工程图纸底色 */
    --color-blueprint-line: rgba(148, 163, 184, 0.18);
    --color-line: rgba(55, 65, 81, 0.08);
    --color-text: #1F2937;
    --color-text-dark: #1F2937;
    --color-text-muted: #4B5563;
    --color-text-inverse: #E5E7EB;
    --color-text-light: #6B7280;
    --color-border: rgba(12, 31, 63, 0.12);
    --color-border-strong: rgba(234, 88, 12, 0.38);

    --font-family-main: "Microsoft YaHei", "PingFang SC", "Source Han Sans SC", sans-serif;
    --font-size-base: 16px;
    --font-size-h1: 2.8rem;
    --font-size-h2: 2.1rem;
    --font-size-h3: 1.5rem;
    --font-size-h4: 1.25rem;
    --font-size-small: 0.95rem;

    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 3rem;
    --spacing-xl: 4.5rem;

    --radius-sm: 6px;
    --radius-md: 12px;
    --radius-lg: 18px;
    --border-radius-sm: 6px;
    --border-radius-md: 12px;
    --border-radius-lg: 18px;

    --shadow-sm: 0 8px 20px rgba(0, 36, 77, 0.08);
    --shadow-md: 0 18px 40px rgba(0, 36, 77, 0.12);
    --shadow-glow: 0 0 0 1px rgba(234, 88, 12, 0.2), 0 18px 38px rgba(0, 36, 77, 0.18);

    --header-height: 96px;
    --header-offset: var(--header-height);
    --max-width: 1240px;
}

/* =====================================================================
   2. Reset & Base
   ===================================================================== */
* { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: var(--font-size-base); scroll-behavior: smooth; }
body {
    font-family: var(--font-family-main);
    color: var(--color-text);
    background:
        linear-gradient(135deg, rgba(55, 65, 81, 0.06), transparent 32%),
        repeating-linear-gradient(90deg, rgba(55, 65, 81, 0.05) 0, rgba(55, 65, 81, 0.05) 1px, transparent 1px, transparent 22px),
        radial-gradient(circle at 20% 20%, rgba(234, 88, 12, 0.05), transparent 30%),
        linear-gradient(180deg, #f9fafb 0%, #f3f4f6 50%, #eef2f7 100%);
    line-height: 1.7;
    padding-top: var(--header-offset, var(--header-height));
}
a { color: var(--color-primary); text-decoration: none; transition: all 0.3s ease; }
a:hover { color: var(--color-accent); }
img { max-width: 100%; height: auto; display: block; border-radius: var(--radius-md); }
ul { list-style: none; }

h1, h2, h3, h4 { line-height: 1.2; color: #111827; }
h1 { font-size: var(--font-size-h1); }
h2 { font-size: var(--font-size-h2); }
h3 { font-size: var(--font-size-h3); }
h4 { font-size: var(--font-size-h4); }

p { color: var(--color-text-muted); margin-bottom: var(--spacing-sm); }
small { color: var(--color-text-light); }

/* =====================================================================
   3. Grid & Layout Helpers
   ===================================================================== */
.container { max-width: var(--max-width); margin: 0 auto; padding: 0 var(--spacing-md); }
.section { padding: var(--spacing-xl) 0; position: relative; background: linear-gradient(180deg, rgba(255,255,255,0.92), rgba(255,255,255,0.9)); }
.section.dark { background: radial-gradient(circle at 10% 10%, rgba(234,88,12,0.12), transparent 32%), linear-gradient(160deg, #0f172a 0%, #0b1424 100%); color: var(--color-text-inverse); }
.section.dark h1, .section.dark h2, .section.dark h3, .section.dark h4, .section.dark p, .section.dark small { color: var(--color-text-inverse); }
.section::before {
    content: "";
    position: absolute;
    inset: 0;
    background:
        repeating-linear-gradient(90deg, rgba(55,65,81,0.04) 0, rgba(55,65,81,0.04) 1px, transparent 1px, transparent 28px),
        repeating-linear-gradient(0deg, rgba(55,65,81,0.035) 0, rgba(55,65,81,0.035) 1px, transparent 1px, transparent 24px);
    opacity: 0.8;
    mix-blend-mode: soft-light;
    pointer-events: none;
    z-index: 1;
}
.section.dark::before {
    background:
        repeating-linear-gradient(90deg, rgba(255,255,255,0.06) 0, rgba(255,255,255,0.06) 1px, transparent 1px, transparent 32px),
        repeating-linear-gradient(0deg, rgba(255,255,255,0.05) 0, rgba(255,255,255,0.05) 1px, transparent 1px, transparent 26px);
}
.section > * { position: relative; z-index: 2; }
.section-title { display: flex; align-items: center; gap: var(--spacing-sm); margin-bottom: var(--spacing-md); }
.section-title .bar { width: 52px; height: 4px; background: linear-gradient(90deg, var(--color-accent), var(--color-accent-2)); border-radius: 999px; box-shadow: var(--shadow-glow); }
.section-title small { letter-spacing: 0.08em; text-transform: uppercase; color: var(--color-text-light); }

.grid { display: grid; gap: var(--spacing-md); grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); align-items: stretch; }
.grid-2 { grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); }
.grid-3 { grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); }
.grid-4 { grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); }
.grid-12 { grid-template-columns: repeat(12, minmax(0, 1fr)); }
.grid-12 > * { grid-column: span 12; }

@media (min-width: 992px) {
    .grid-12 > .col-lg-3 { grid-column: span 3; }
    .grid-12 > .col-lg-4 { grid-column: span 4; }
    .grid-12 > .col-lg-6 { grid-column: span 6; }
    .grid-12 > .col-lg-9 { grid-column: span 9; }
    .grid-12 > .col-lg-12 { grid-column: span 12; }
}
@media (max-width: 768px) {
    .grid-12 > .col-sm-6 { grid-column: span 6; }
    .grid-12 > .col-sm-12 { grid-column: span 12; }
}

.flex { display: flex; align-items: center; }
.flex-between { display: flex; align-items: center; justify-content: space-between; gap: var(--spacing-sm); }

.badge { display: inline-flex; align-items: center; gap: 6px; padding: 6px 12px; background: rgba(55, 65, 81, 0.12); color: var(--color-primary); border: 1px solid var(--color-border); border-radius: 999px; font-size: 0.85rem; letter-spacing: 0.04em; }
.tag { display: inline-flex; padding: 6px 12px; background: var(--color-surface-muted); border: 1px solid var(--color-border); border-radius: 999px; font-size: 0.9rem; color: var(--color-primary-dark); }
.section.dark .badge { background: rgba(255,255,255,0.12); border-color: rgba(255,255,255,0.2); color: #fff; }
.section.dark .tag { background: rgba(255,255,255,0.08); border-color: rgba(255,255,255,0.2); color: #fff; }
.section.dark .muted { color: var(--color-text-inverse); }

.card { background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius-lg); padding: var(--spacing-md); box-shadow: var(--shadow-sm); position: relative; overflow: hidden; color: var(--color-text); }
.card::after { content: ""; position: absolute; inset: 0; background: radial-gradient(circle at 20% 20%, rgba(234,88,12,0.08), transparent 38%); opacity: 0; transition: opacity 0.3s ease; }
.card:hover::after { opacity: 1; }
.card h3, .card h4 { margin-bottom: var(--spacing-xs); color: #0B1F3F; }

.blueprint-card {
    background: radial-gradient(circle at 30% 20%, rgba(2,132,199,0.18), transparent 42%), var(--color-blueprint);
    border: 1px solid rgba(255,255,255,0.18);
    color: #E5E7EB;
    box-shadow: 0 16px 36px rgba(0,0,0,0.28);
}
.blueprint-card::before {
    content: "";
    position: absolute;
    inset: 0;
    background:
        linear-gradient(90deg, var(--color-blueprint-line) 1px, transparent 1px),
        linear-gradient(0deg, var(--color-blueprint-line) 1px, transparent 1px);
    background-size: 36px 36px, 36px 36px;
    opacity: 0.55;
    pointer-events: none;
}
.blueprint-card h3, .blueprint-card h4 { color: #F8FAFC; }
.blueprint-card p, .blueprint-card small { color: #cbd5e1; }
.blueprint-card .tag { background: rgba(255,255,255,0.08); border-color: rgba(255,255,255,0.25); color: #E5E7EB; }

.stat-card { background: linear-gradient(145deg, rgba(0,51,102,0.08), rgba(234,88,12,0.08)); border: 1px solid var(--color-border-strong); box-shadow: var(--shadow-glow); }
.stat-number { font-size: 2.5rem; font-weight: 800; color: var(--color-accent); }

.section.dark .card:not(.blueprint-card) { background: var(--color-surface); border-color: var(--color-border); color: var(--color-text); }
.section.dark .card:not(.blueprint-card) h3,
.section.dark .card:not(.blueprint-card) h4,
.section.dark .card:not(.blueprint-card) p,
.section.dark .card:not(.blueprint-card) small { color: var(--color-text); }
.section.dark .card:not(.blueprint-card) .muted { color: var(--color-text-muted); }
.section.dark .card:not(.blueprint-card) .tag { background: var(--color-surface-muted); border-color: var(--color-border); color: var(--color-primary-dark); }
.section.dark .card:not(.blueprint-card) .btn-ghost { background: rgba(15,23,42,0.04); border-color: var(--color-border); color: var(--color-primary-dark); }

.highlight { color: var(--color-accent); }
.muted { color: var(--color-text-muted); }
.divider { width: 100%; height: 1px; background: var(--color-border); margin: var(--spacing-md) 0; }

/* =====================================================================
   4. Navigation
   ===================================================================== */
.header { position: fixed; top: 0; left: 0; width: 100%; z-index: 1000; backdrop-filter: blur(10px); background: rgba(6, 18, 36, 0.9); border-bottom: 1px solid var(--color-border); padding-bottom: 10px; }
.topbar {
    position: fixed;
    right: 18px;
    top: 18vh;
    bottom: auto;
    left: auto;
    font-size: 0.9rem;
    padding: 12px 14px;
    color: var(--color-text-inverse);
    background: rgba(6, 18, 36, 0.82);
    border: 1px solid var(--color-border);
    box-shadow: var(--shadow-md);
    border-radius: 14px;
    max-width: 320px;
    z-index: 1200;
    backdrop-filter: blur(6px);
    animation: float-card 14s ease-in-out infinite;
}
.topbar .container { max-width: none; padding: 0; margin: 0; display: inline-flex; flex-direction: column; align-items: flex-start; gap: 8px; justify-content: flex-start; }
.topbar a { color: var(--color-accent-soft); white-space: nowrap; }
.topbar .flex-between { gap: 8px; flex-wrap: wrap; }
.topbar .muted { color: var(--color-text-inverse); opacity: 0.78; }
.topbar .badge { width: 100%; justify-content: flex-start; }
.topbar .contact-line { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.topbar .product-line { display: flex; flex-wrap: wrap; gap: 6px 10px; line-height: 1.5; }

@keyframes float-card {
    0% { transform: translate3d(0, -40px, 0); }
    20% { transform: translate3d(0, 60px, 0); }
    45% { transform: translate3d(0, -10px, 0); }
    70% { transform: translate3d(0, 90px, 0); }
    100% { transform: translate3d(0, -40px, 0); }
}

.navbar { display: flex; align-items: center; justify-content: space-between; gap: var(--spacing-md); padding: 12px 0; flex-wrap: nowrap; }
.logo { display: flex; align-items: center; gap: 8px; font-weight: 800; font-size: 1.1rem; letter-spacing: 0.02em; color: #F9FAFB; white-space: nowrap; }
.logo span { display: none; width: 32px; height: 32px; border-radius: 8px; background: linear-gradient(135deg, var(--color-accent), var(--color-accent-2)); box-shadow: var(--shadow-glow); }

.nav-menu { display: flex; align-items: center; gap: 14px; flex: 1; justify-content: center; flex-wrap: nowrap; min-width: 0; }
.nav-item { position: relative; }
.nav-link { padding: 10px 6px; font-weight: 600; color: var(--color-text-inverse); border-bottom: 2px solid transparent; white-space: nowrap; }
.nav-link:hover, .nav-link.active { color: #fff; border-color: var(--color-accent); }

.dropdown-menu { position: absolute; left: 0; top: 110%; min-width: 220px; background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius-md); padding: var(--spacing-xs) 0; box-shadow: var(--shadow-md); display: none; }
.nav-item:hover > .dropdown-menu { display: block; }
.dropdown-item a { display: block; padding: 10px 16px; color: var(--color-text); }
.dropdown-item a:hover { background: var(--color-surface-muted); color: var(--color-primary); }

.nav-cta { display: flex; align-items: center; gap: var(--spacing-sm); flex-shrink: 0; }
.menu-toggle { display: none; width: 44px; height: 44px; border-radius: 10px; border: 1px solid var(--color-border); align-items: center; justify-content: center; flex-direction: column; gap: 6px; cursor: pointer; }
.menu-toggle span { width: 22px; height: 2px; background: #fff; border-radius: 999px; }
.topbar .badge { background: linear-gradient(120deg, rgba(234,88,12,0.95), #fbbf24); color: #0B0F14; border-color: rgba(255,255,255,0.28); box-shadow: 0 6px 20px rgba(234,88,12,0.25); font-weight: 800; letter-spacing: 0.06em; }
.topbar .badge::before { content: "500强"; display: inline-flex; align-items: center; justify-content: center; padding: 2px 8px; margin-right: 8px; background: rgba(0,0,0,0.12); color: #0B0F14; border-radius: 999px; font-size: 0.8rem; }
.header.is-scrolled { box-shadow: var(--shadow-md); background: rgba(6, 18, 36, 0.95); }

@media (max-width: 992px) {
    body { padding-top: calc(var(--header-offset, var(--header-height)) + 48px); }
    .nav-menu { position: fixed; left: 0; right: 0; top: var(--header-offset, var(--header-height)); background: #0B1626; flex-direction: column; gap: 0; padding: var(--spacing-sm) var(--spacing-md); border-bottom: 1px solid var(--color-border); display: none; }
    .nav-menu.active { display: flex; }
    .nav-item { width: 100%; border-bottom: 1px solid var(--color-border); }
    .nav-link { padding: 14px 4px; display: block; }
    .dropdown-menu { position: static; display: block; border: none; box-shadow: none; padding-left: var(--spacing-sm); }
    .nav-cta { display: none; }
    .menu-toggle { display: inline-flex; }

    .topbar { left: 12px; right: 12px; bottom: 18px; top: auto; padding: 12px; max-width: none; animation: none; transform: none; }
}

/* =====================================================================
   5. Buttons
   ===================================================================== */
.btn { display: inline-flex; align-items: center; gap: 8px; padding: 12px 20px; border-radius: var(--radius-md); font-weight: 700; letter-spacing: 0.02em; text-transform: uppercase; border: 1px solid transparent; cursor: pointer; transition: all 0.3s ease; }
.btn-primary { background: linear-gradient(120deg, var(--color-accent), var(--color-accent-2)); color: #0B0F14; box-shadow: var(--shadow-glow); }
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 16px 30px rgba(204, 0, 0, 0.3); }
.btn-secondary { background: var(--color-primary); color: #fff; border-color: var(--color-primary-dark); box-shadow: var(--shadow-sm); }
.btn-secondary:hover { background: var(--color-primary-dark); }
.btn-ghost { background: rgba(255,255,255,0.08); border-color: rgba(255,255,255,0.18); color: #F9FAFB; }
.btn-ghost:hover { border-color: var(--color-accent); color: #fff; }
.btn-link { padding: 0; border: none; color: var(--color-accent); text-transform: none; font-weight: 700; }

/* =====================================================================
   6. Hero & Banner
   ===================================================================== */
.hero { position: relative; overflow: hidden; border-radius: 0 0 28px 28px; background: var(--color-primary-dark); padding: calc(var(--spacing-xl) + 40px) 0 var(--spacing-xl); color: #fff; }
.hero::before {
    content: "";
    position: absolute;
    inset: 0;
    background:
        radial-gradient(circle at 12% 18%, rgba(234,88,12,0.14), transparent 36%),
        repeating-linear-gradient(90deg, rgba(255,255,255,0.06) 0, rgba(255,255,255,0.06) 1px, transparent 1px, transparent 26px),
        linear-gradient(120deg, rgba(55,65,81,0.82), rgba(17,24,39,0.9)),
        var(--hero-image, none);
    background-size: cover, cover, cover, cover;
    background-position: center;
    filter: saturate(1.05);
}
.hero::after { content: ""; position: absolute; inset: 0; background: radial-gradient(circle at 20% 30%, rgba(234,88,12,0.35), transparent 40%), radial-gradient(circle at 80% 20%, rgba(204,0,0,0.28), transparent 35%); mix-blend-mode: screen; animation: sparks 12s ease-in-out infinite alternate; opacity: 0.7; }
.hero > * { position: relative; z-index: 2; }
.hero h1, .hero h2, .hero h3, .hero h4 { color: #fff; }
.hero p { color: #E5E7EB; }

@keyframes sparks { 0% { transform: translateY(0); opacity: 0.6; } 50% { transform: translateY(-12px); opacity: 1; } 100% { transform: translateY(10px); opacity: 0.8; } }

.hero-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: var(--spacing-lg); align-items: center; }
.hero-video { position: relative; border-radius: var(--radius-lg); overflow: hidden; border: 1px solid rgba(255,255,255,0.18); box-shadow: var(--shadow-md); }
.hero-video img { width: 100%; height: 100%; object-fit: cover; display: block; }
.hero-video::after { content: "钢水流动"; position: absolute; bottom: 14px; left: 14px; padding: 8px 12px; background: rgba(0,0,0,0.55); border-radius: 999px; font-size: 0.85rem; color: #FCD34D; letter-spacing: 0.08em; }
.hero-effects { position: absolute; inset: 0; z-index: 1; pointer-events: none; }
.spark-canvas { position: absolute; inset: 0; width: 100%; height: 100%; mix-blend-mode: screen; opacity: 0.9; }
.steel-lines-overlay { position: absolute; inset: 0; background:
    linear-gradient(90deg, rgba(255,255,255,0.08) 1px, transparent 1px),
    linear-gradient(0deg, rgba(255,255,255,0.08) 1px, transparent 1px);
    background-size: 48px 48px, 48px 48px;
    opacity: 0.18;
}
.floating-badge {
    position: absolute;
    top: 28px;
    right: 32px;
    padding: 12px 16px;
    background: linear-gradient(135deg, #F59E0B, #EA580C);
    color: #0B0F14;
    border-radius: 12px;
    font-weight: 800;
    letter-spacing: 0.04em;
    box-shadow: 0 10px 30px rgba(234,88,12,0.35);
    border: 1px solid rgba(255,255,255,0.2);
    display: inline-flex;
    align-items: center;
    gap: 10px;
    z-index: 3;
}
.floating-badge span { display: inline-flex; padding: 4px 8px; background: rgba(0,0,0,0.08); border-radius: 999px; color: #111827; font-size: 0.9rem; }

.breadcrumbs { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; color: var(--color-text-light); font-size: 0.95rem; margin-bottom: var(--spacing-sm); }
.breadcrumbs a { color: var(--color-text); }

.page-hero { position: relative; padding: var(--spacing-xl) 0; border-bottom: 1px solid var(--color-border); overflow: hidden; color: #fff; background: var(--color-primary-dark); }
.page-hero::before {
    content: "";
    position: absolute;
    inset: 0;
    background:
        radial-gradient(circle at 6% 20%, rgba(234,88,12,0.16), transparent 32%),
        repeating-linear-gradient(90deg, rgba(255,255,255,0.06) 0, rgba(255,255,255,0.06) 1px, transparent 1px, transparent 32px),
        linear-gradient(135deg, rgba(55,65,81,0.75), rgba(17,24,39,0.88)),
        var(--hero-image, none);
    background-size: cover, cover, cover, cover;
    background-position: center;
    filter: saturate(1.05);
}
.page-hero::after { content: ""; position: absolute; inset: 0; background: linear-gradient(0deg, rgba(12,17,26,0.65), transparent 60%); }
.page-hero .container { position: relative; z-index: 2; }
.page-hero h1 { margin-bottom: var(--spacing-sm); color: #fff; }
.page-hero p { color: #E5E7EB; }

/* =====================================================================
   7. Components
   ===================================================================== */
.kpi-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: var(--spacing-md); margin-top: var(--spacing-md); }
.kpi { padding: var(--spacing-md); background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius-lg); box-shadow: var(--shadow-sm); }
.kpi .label { text-transform: uppercase; font-size: 0.85rem; letter-spacing: 0.08em; color: var(--color-text-light); }
.kpi .value { font-size: 2rem; font-weight: 800; color: var(--color-accent); }

.feature-card { padding: var(--spacing-md); border: 1px solid var(--color-border); background: var(--color-surface); border-radius: var(--radius-lg); position: relative; overflow: hidden; color: var(--color-text); }
.section.dark .feature-card { background: rgba(255,255,255,0.06); border-color: rgba(255,255,255,0.12); color: var(--color-text-inverse); }
.feature-card::before { content: ""; position: absolute; inset: 0; background: linear-gradient(145deg, rgba(234,88,12,0.1), transparent 60%); opacity: 0; transition: opacity 0.3s ease; }
.feature-card:hover::before { opacity: 1; }
.feature-card h4 { color: #0B1F3F; }
.section.dark .feature-card h4 { color: #fff; }

.spec-table { width: 100%; border-collapse: collapse; margin-top: var(--spacing-sm); }
.spec-table th, .spec-table td { border: 1px solid var(--color-border); padding: 12px 14px; text-align: left; color: var(--color-text); background: var(--color-surface); }
.spec-table th { background: var(--color-surface-muted); color: var(--color-primary); text-transform: uppercase; letter-spacing: 0.06em; }
.section.dark .spec-table th, .section.dark .spec-table td { background: rgba(255,255,255,0.06); color: var(--color-text-inverse); }

.timeline { position: relative; padding-left: 26px; border-left: 2px solid var(--color-border); display: grid; gap: var(--spacing-md); }
.timeline-item { position: relative; padding-left: var(--spacing-sm); }
.timeline-item::before { content: ""; position: absolute; left: -35px; top: 4px; width: 14px; height: 14px; border-radius: 50%; background: linear-gradient(135deg, var(--color-accent), var(--color-accent-2)); box-shadow: 0 0 0 6px rgba(234,88,12,0.15); }

.logo-wall { display: grid; grid-template-columns: repeat(auto-fit, minmax(140px, 1fr)); gap: var(--spacing-md); }
.logo-wall .logo-card { padding: var(--spacing-sm); border: 1px dashed var(--color-border); border-radius: var(--radius-md); background: var(--color-surface); text-align: center; color: var(--color-primary); box-shadow: var(--shadow-sm); }

.news-list { display: grid; grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); gap: var(--spacing-md); }
.news-card { border: 1px solid var(--color-border); border-radius: var(--radius-lg); overflow: hidden; background: var(--color-surface); box-shadow: var(--shadow-sm); display: grid; grid-template-rows: auto 1fr; }
.news-card img { width: 100%; height: 200px; object-fit: cover; }
.news-card .body { padding: var(--spacing-md); }
.news-meta { display: flex; gap: 10px; align-items: center; color: var(--color-text-light); font-size: 0.95rem; margin-bottom: 8px; }

.news-item { display: grid; grid-template-columns: 1fr 1.4fr; gap: var(--spacing-md); padding: var(--spacing-md); border: 1px solid var(--color-border); border-radius: var(--radius-lg); background: var(--color-surface); box-shadow: var(--shadow-sm); }
.news-item-img img { height: 100%; object-fit: cover; }
.news-sidebar { background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius-lg); padding: var(--spacing-md); box-shadow: var(--shadow-sm); }
.news-sidebar h3 { margin-bottom: var(--spacing-sm); color: #0B1F3F; }
.news-sidebar ul li { margin-bottom: 10px; }
.news-sidebar a { color: var(--color-text); }

.case-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: var(--spacing-md); }
.case-card { border: 1px solid var(--color-border); background: var(--color-surface); border-radius: var(--radius-lg); overflow: hidden; box-shadow: var(--shadow-sm); }
.case-card .body { padding: var(--spacing-md); }

.job-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: var(--spacing-md); }
.job-card { background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius-lg); padding: var(--spacing-md); box-shadow: var(--shadow-sm); }

.contact-panels { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: var(--spacing-md); }
.contact-card { background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius-lg); padding: var(--spacing-md); }

.table-responsive { overflow-x: auto; }

.blueprint-board {
    position: relative;
    background: var(--color-blueprint);
    border: 1px solid rgba(255,255,255,0.18);
    border-radius: var(--radius-lg);
    padding: var(--spacing-md);
    box-shadow: 0 16px 32px rgba(0,0,0,0.22);
    overflow-x: auto;
    overflow-y: hidden;
}
.blueprint-board::before {
    content: "";
    position: absolute;
    inset: 0;
    background:
        linear-gradient(90deg, rgba(148,163,184,0.18) 1px, transparent 1px),
        linear-gradient(0deg, rgba(148,163,184,0.16) 1px, transparent 1px);
    background-size: 32px 32px, 32px 32px;
    opacity: 0.6;
    pointer-events: none;
}
.blueprint-board .spec-table th, .blueprint-board .spec-table td { background: rgba(255,255,255,0.04); color: #E5E7EB; border-color: rgba(255,255,255,0.14); }
.blueprint-board .spec-table th { background: rgba(255,255,255,0.08); color: #F9FAFB; }
.blueprint-board .table-note { color: #cbd5e1; }

.industrial-dashboard { display: grid; gap: var(--spacing-lg); margin-top: var(--spacing-lg); }
.gauge-deck { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: var(--spacing-md); }
.gauge-card {
    background: linear-gradient(135deg, rgba(234,88,12,0.08), rgba(2,132,199,0.12));
    border: 1px solid var(--color-border-strong);
    border-left: 4px solid var(--color-accent);
    border-radius: var(--radius-lg);
    padding: var(--spacing-md);
    display: grid;
    grid-template-columns: auto 1fr;
    gap: var(--spacing-sm);
    align-items: center;
    box-shadow: var(--shadow-md);
}
.gauge-meta p { margin-bottom: var(--spacing-xs); }
.gauge { --gauge: 0; position: relative; width: 200px; height: 120px; overflow: hidden; border-radius: 140px 140px 12px 12px; background: linear-gradient(180deg, rgba(15,23,42,0.92), rgba(15,23,42,0.72)); border: 1px solid rgba(255,255,255,0.08); }
.gauge .arc {
    position: absolute;
    width: 200px;
    height: 200px;
    top: -82px;
    left: 0;
    border-radius: 50%;
    background: conic-gradient(from 180deg, var(--color-accent) calc(var(--gauge) * 180deg), rgba(255,255,255,0.12) calc(var(--gauge) * 180deg));
    box-shadow: 0 12px 24px rgba(234,88,12,0.24);
}
.gauge .arc::after {
    content: "";
    position: absolute;
    inset: 16px;
    border-radius: 50%;
    background: linear-gradient(145deg, rgba(15,23,42,0.95), rgba(15,23,42,0.8));
    border: 1px solid rgba(255,255,255,0.08);
}
.gauge .needle {
    position: absolute;
    width: 4px;
    height: 96px;
    background: linear-gradient(180deg, #fff, var(--color-accent));
    top: -2px;
    left: 98px;
    border-radius: 999px;
    transform-origin: bottom center;
    transform: rotate(calc(-90deg + (var(--gauge) * 180deg)));
    box-shadow: 0 0 12px rgba(234,88,12,0.6);
}
.gauge .center {
    position: absolute;
    width: 120px;
    height: 120px;
    border-radius: 50%;
    top: 18px;
    left: 40px;
    background: linear-gradient(145deg, #0b1423, #0f172a);
    border: 1px solid rgba(255,255,255,0.14);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    color: #E5E7EB;
}
.gauge .gauge-value { font-size: 1.5rem; font-weight: 800; color: #FBBF24; }
.gauge .center small { color: #cbd5e1; }

/* =====================================================================
   8. Footer
   ===================================================================== */
.footer { background: linear-gradient(180deg, #0B1423 0%, #0D1B2F 100%); border-top: 1px solid rgba(255,255,255,0.08); padding: var(--spacing-lg) 0 var(--spacing-md); margin-top: var(--spacing-xl); color: var(--color-text-inverse); }
.footer .grid { grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); }
.footer h4 { margin-bottom: var(--spacing-sm); color: #fff; }
.footer ul li { margin-bottom: 8px; }
.footer a { color: var(--color-text-inverse); }
.footer-bottom { margin-top: var(--spacing-md); padding-top: var(--spacing-sm); border-top: 1px solid rgba(255,255,255,0.1); text-align: center; color: var(--color-text-inverse); }

/* =====================================================================
   9. Utilities & Animations
   ===================================================================== */
.frosted { background: rgba(255,255,255,0.7); border: 1px solid var(--color-border); backdrop-filter: blur(12px); box-shadow: var(--shadow-sm); }
.soft-light { background: linear-gradient(120deg, rgba(255,255,255,0.7), rgba(255,255,255,0.5)); border-radius: var(--radius-lg); padding: var(--spacing-md); border: 1px solid var(--color-border); }
.accent-line { width: 60px; height: 4px; background: linear-gradient(90deg, var(--color-accent), var(--color-accent-2)); border-radius: 999px; margin-bottom: var(--spacing-sm); }

.chip-row { display: flex; flex-wrap: wrap; gap: 10px; }

.table-note { color: var(--color-text-light); font-size: 0.9rem; margin-top: var(--spacing-xs); }

blockquote { border-left: 4px solid var(--color-accent); padding-left: var(--spacing-sm); color: var(--color-text); background: var(--color-surface-muted); border-radius: var(--radius-sm); }

.alert { border: 1px solid var(--color-border-strong); padding: var(--spacing-sm); border-radius: var(--radius-md); background: rgba(234,88,12,0.08); color: #0B1F3F; }

.highlight-band { background: linear-gradient(90deg, rgba(234,88,12,0.16), rgba(204,0,0,0.2)); padding: var(--spacing-md); border-radius: var(--radius-lg); border: 1px solid var(--color-border-strong); color: #0B1F3F; }

.section-padding { padding: var(--spacing-xl) 0; }
.text-center { text-align: center; }
.text-right { text-align: right; }
.text-left { text-align: left; }

.feature-box { background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius-lg); padding: var(--spacing-md); box-shadow: var(--shadow-sm); color: var(--color-text); }
.section.dark .feature-box { background: rgba(255,255,255,0.06); border-color: rgba(255,255,255,0.12); color: var(--color-text-inverse); }

/* =====================================================================
   10. Forms
   ===================================================================== */
form { display: grid; gap: var(--spacing-sm); }
input, textarea, select {
    width: 100%;
    padding: 12px;
    border-radius: var(--radius-md);
    background: var(--color-surface-muted);
    border: 1px solid var(--color-border);
    color: var(--color-text);
}
input:focus, textarea:focus, select:focus { outline: none; border-color: var(--color-accent); box-shadow: 0 0 0 3px rgba(234,88,12,0.18); }
label { color: var(--color-text); font-weight: 600; }

/* =====================================================================
   11. Responsive tweaks
   ===================================================================== */
@media (max-width: 768px) {
    h1 { font-size: 2.2rem; }
    h2 { font-size: 1.8rem; }
    .section { padding: var(--spacing-lg) 0; }
    .news-item { grid-template-columns: 1fr; }
    .gauge { width: 160px; height: 100px; }
    .gauge .arc { width: 160px; height: 160px; left: -0px; top: -66px; }
    .gauge .needle { left: 78px; height: 82px; }
    .gauge .center { width: 100px; height: 100px; left: 30px; top: 20px; }
}