/* ============================================
   XINNOA Corporate Site — Stylesheet
   ============================================ */
:root {
    --brand: #0a66c2;
    --brand-light: #3b82f6;
    --brand-soft: #f0f6ff;
    --ink: #0f172a;
    --ink-2: #1e293b;
    --body: #4a5568;
    --muted: #64748b;
    --line: #e2e8f0;
    --bg-soft: #f8fafc;
    --radius: 10px;
    --shadow: 0 12px 32px rgba(15, 23, 42, 0.08);
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', sans-serif;
    color: var(--ink);
    background: #fff;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}
a { text-decoration: none; color: inherit; }
ul { list-style: none; }
img { max-width: 100%; display: block; }
button { font-family: inherit; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }

/* ===== Top Bar ===== */
.topbar { background: var(--ink); color: #8899b4; font-size: 13px; padding: 8px 0; }
.topbar .container { display: flex; justify-content: space-between; align-items: center; }
.topbar a { color: #8899b4; }
.topbar a:hover { color: #fff; }
.topbar-left span { margin-right: 20px; }
.topbar-left i { margin-right: 6px; color: var(--brand-light); }

/* ===== Header ===== */
.header {
    background: #fff; border-bottom: 1px solid #e8ecf0;
    position: sticky; top: 0; z-index: 100;
}
.header .container { display: flex; justify-content: space-between; align-items: center; height: 68px; }
.logo { display: flex; align-items: center; gap: 10px; font-weight: 700; font-size: 20px; color: #0a1628; }
.logo i { color: var(--brand); font-size: 24px; }
.logo span { color: #8899b4; font-weight: 400; font-size: 12px; display: block; letter-spacing: .5px; }
.nav { display: flex; gap: 4px; align-items: center; }
.nav a {
    padding: 8px 16px; font-size: 14px; font-weight: 500;
    color: var(--body); border-radius: 6px; transition: .2s;
}
.nav a:hover { color: var(--brand); background: var(--brand-soft); }
.nav a.active { color: var(--brand); background: var(--brand-soft); }
.nav .btn { background: var(--ink-2); color: #fff; }
.nav .btn:hover { background: var(--ink); color: #fff; }
.nav-toggle { display: none; background: none; border: none; font-size: 22px; color: var(--ink); cursor: pointer; }

/* ===== 语言切换 ===== */
.lang-switch { position: relative; margin-left: 8px; }
.lang-btn {
    display: flex; align-items: center; gap: 6px;
    padding: 7px 12px; border: 1px solid var(--line); background: #fff;
    border-radius: 6px; font-size: 13px; font-weight: 500; color: var(--body);
    cursor: pointer; transition: .2s;
}
.lang-btn:hover { border-color: var(--brand); color: var(--brand); }
.lang-btn i { font-size: 12px; }
.lang-menu {
    position: absolute; top: calc(100% + 6px); right: 0; min-width: 168px;
    background: #fff; border: 1px solid var(--line); border-radius: 8px;
    box-shadow: 0 12px 32px rgba(15, 23, 42, .12);
    padding: 6px; display: none; z-index: 200;
}
.lang-menu.open { display: block; }
.lang-menu button {
    display: flex; align-items: center; gap: 10px; width: 100%;
    padding: 9px 12px; border: none; background: transparent;
    border-radius: 6px; font-size: 14px; color: var(--body);
    cursor: pointer; text-align: left; transition: .15s;
}
.lang-menu button:hover { background: var(--brand-soft); color: var(--brand); }
.lang-menu button.active { background: var(--brand-soft); color: var(--brand); font-weight: 600; }
.lang-menu button .code {
    font-size: 11px; font-weight: 700; color: #94a3b8;
    min-width: 22px; text-transform: uppercase;
}
.lang-menu button.active .code { color: var(--brand); }
.lang-menu button .check { margin-left: auto; color: var(--brand); font-size: 12px; display: none; }
.lang-menu button.active .check { display: block; }

/* ===== Hero ===== */
.hero { background: linear-gradient(135deg, #0f172a 0%, #1e293b 100%); padding: 90px 0 70px; color: #fff; }
.hero .container { display: grid; grid-template-columns: 1.15fr .85fr; gap: 64px; align-items: center; }
.hero h1 { font-size: 40px; font-weight: 700; line-height: 1.18; margin-bottom: 18px; letter-spacing: -0.5px; }
.hero h1 span { color: var(--brand-light); }
.hero p { font-size: 17px; color: rgba(255, 255, 255, .62); margin-bottom: 36px; max-width: 500px; line-height: 1.8; }
.hero-badge {
    display: inline-block; padding: 7px 16px; margin-bottom: 22px;
    background: rgba(59, 130, 246, .12); border: 1px solid rgba(59, 130, 246, .25);
    border-radius: 6px; color: #93c5fd; font-size: 13px; font-weight: 500;
}
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; }
.btn {
    display: inline-flex; align-items: center; gap: 8px;
    padding: 13px 30px; border-radius: 8px; font-weight: 500; font-size: 15px;
    cursor: pointer; border: none; transition: .25s;
}
.btn-primary { background: var(--brand-light); color: #fff; box-shadow: 0 4px 14px rgba(59, 130, 246, .3); }
.btn-primary:hover { background: #2563eb; transform: translateY(-1px); }
.btn-outline { border: 1.5px solid rgba(255, 255, 255, .25); color: #fff; background: transparent; }
.btn-outline:hover { background: rgba(255, 255, 255, .08); border-color: rgba(255, 255, 255, .4); }
.btn-dark { background: var(--ink-2); color: #fff; }
.btn-dark:hover { background: var(--ink); }
.hero-stats {
    display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px;
    margin-top: 52px; padding-top: 36px; border-top: 1px solid rgba(255, 255, 255, .08);
}
.stat-value { font-size: 30px; font-weight: 700; }
.stat-value sup { font-size: 14px; color: var(--brand-light); position: relative; top: -8px; }
.stat-label { font-size: 11px; text-transform: uppercase; letter-spacing: 1px; color: rgba(255, 255, 255, .35); margin-top: 4px; }
.hero-right { background: rgba(255, 255, 255, .04); border: 1px solid rgba(255, 255, 255, .08); border-radius: 12px; padding: 36px; }
.hero-right h3 { font-size: 18px; font-weight: 600; margin-bottom: 24px; }
.cert-list { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 24px; }
.cert-list span { padding: 6px 14px; background: rgba(255, 255, 255, .06); border: 1px solid rgba(255, 255, 255, .1); border-radius: 4px; color: rgba(255, 255, 255, .7); font-size: 13px; }
.info-item { display: flex; align-items: center; gap: 12px; padding: 12px 0; border-bottom: 1px solid rgba(255, 255, 255, .06); font-size: 14px; color: rgba(255, 255, 255, .6); }
.info-item:last-child { border-bottom: none; }
.info-item i { width: 20px; color: var(--brand-light); }

/* ===== Sections ===== */
.section { padding: 88px 0; }
.section.gray { background: var(--bg-soft); }
.section.dark { background: #0a1628; color: #fff; }
.section-header { text-align: center; margin-bottom: 52px; }
.section-header .eyebrow { font-size: 13px; letter-spacing: 2px; text-transform: uppercase; color: var(--brand); font-weight: 600; margin-bottom: 10px; }
.section-header h2 { font-size: 32px; font-weight: 700; letter-spacing: -0.5px; }
.section-header p { color: var(--muted); margin-top: 10px; font-size: 16px; max-width: 620px; margin-left: auto; margin-right: auto; }
.section.dark .section-header h2 { color: #fff; }
.section.dark .section-header p { color: rgba(255, 255, 255, .5); }

/* ===== Feature Grid ===== */
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: start; }

.feature-card {
    border: 1px solid var(--line); border-radius: var(--radius);
    padding: 30px 28px; background: #fff; transition: .25s;
}
.feature-card:hover { box-shadow: var(--shadow); transform: translateY(-3px); border-color: transparent; }
.feature-card i { font-size: 26px; color: var(--brand); margin-bottom: 14px; }
.feature-card h3 { font-size: 17px; font-weight: 600; margin-bottom: 8px; }
.feature-card p { font-size: 14px; color: var(--muted); }

.why-card { background: rgba(255, 255, 255, .04); border: 1px solid rgba(255, 255, 255, .08); border-radius: var(--radius); padding: 28px; }
.why-card .num { font-size: 30px; font-weight: 800; color: var(--brand-light); margin-bottom: 8px; }
.why-card h3 { font-size: 16px; font-weight: 600; margin-bottom: 8px; }
.why-card p { font-size: 14px; color: rgba(255, 255, 255, .5); }

/* ===== Product Card ===== */
.product-filter { display: flex; justify-content: center; gap: 6px; flex-wrap: wrap; margin-bottom: 32px; }
.product-filter button {
    padding: 8px 18px; border: 1px solid #e8ecf0; background: #fff;
    color: var(--body); border-radius: 6px; font-size: 13px; font-weight: 500; cursor: pointer; transition: .2s;
}
.product-filter button:hover { border-color: var(--brand); color: var(--brand); }
.product-filter button.active { background: var(--ink-2); color: #fff; border-color: var(--ink-2); }
.product-card { border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; background: #fff; transition: .25s; }
.product-card:hover { box-shadow: var(--shadow); transform: translateY(-3px); border-color: transparent; }
.product-card.hidden { display: none; }
.product-img { height: 180px; display: flex; align-items: center; justify-content: center; overflow: hidden; }
.product-img img { width: 100%; height: 100%; object-fit: cover; }
.product-img .badge { position: absolute; top: 10px; right: 10px; padding: 3px 10px; background: var(--brand); color: #fff; font-size: 11px; font-weight: 600; border-radius: 4px; }
.product-img { position: relative; }
.badge.hot { background: #d9381e; }
.badge.new { background: #7c3aed; }
.product-body { padding: 20px 22px 22px; }
.product-body h3 { font-size: 16px; font-weight: 600; margin-bottom: 6px; }
.product-body p { font-size: 13px; color: var(--muted); margin-bottom: 12px; }
.product-tags { display: flex; flex-wrap: wrap; gap: 4px; margin-bottom: 10px; }
.product-tags span { padding: 2px 8px; background: #f3f4f6; color: var(--body); font-size: 11px; border-radius: 4px; }
.product-price { font-size: 13px; margin-bottom: 10px; }
.product-price strong { color: var(--brand); font-size: 16px; }
.product-link { font-size: 13px; color: var(--brand); font-weight: 500; display: inline-flex; align-items: center; gap: 4px; }
.product-link:hover i { transform: translateX(3px); }
.product-link i { transition: .2s; font-size: 12px; }

/* ===== Timeline ===== */
.timeline { position: relative; padding-left: 32px; }
.timeline::before { content: ''; position: absolute; left: 7px; top: 6px; bottom: 6px; width: 2px; background: var(--line); }
.tl-item { position: relative; padding-bottom: 30px; }
.tl-item:last-child { padding-bottom: 0; }
.tl-item::before {
    content: ''; position: absolute; left: -30px; top: 5px;
    width: 16px; height: 16px; border-radius: 50%;
    background: #fff; border: 3px solid var(--brand);
}
.tl-year { font-size: 14px; font-weight: 700; color: var(--brand); margin-bottom: 4px; }
.tl-item h4 { font-size: 16px; font-weight: 600; margin-bottom: 6px; }
.tl-item p { font-size: 14px; color: var(--muted); }

/* ===== Stats Band ===== */
.stats-band { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.stats-band .sb-item { text-align: center; padding: 28px 16px; background: #fff; border: 1px solid var(--line); border-radius: var(--radius); }
.sb-item .v { font-size: 34px; font-weight: 800; color: var(--brand); }
.sb-item .v sup { font-size: 16px; }
.sb-item .l { font-size: 13px; color: var(--muted); margin-top: 4px; }

/* ===== CTA ===== */
.cta { background: linear-gradient(135deg, #0a66c2 0%, #0d9488 100%); padding: 62px 0; text-align: center; color: #fff; }
.cta h2 { font-size: 28px; font-weight: 700; margin-bottom: 12px; }
.cta p { opacity: .85; margin-bottom: 28px; }
.cta .btn-white { background: #fff; color: var(--brand); }
.cta .btn-white:hover { background: var(--brand-soft); }
.cta .btn-ghost { border: 1px solid rgba(255, 255, 255, .45); color: #fff; margin-left: 12px; }
.cta .btn-ghost:hover { background: rgba(255, 255, 255, .12); }

/* ===== Forms ===== */
.form-card { background: var(--bg-soft); border: 1px solid var(--line); border-radius: var(--radius); padding: 30px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.form-group { display: flex; flex-direction: column; gap: 5px; margin-bottom: 14px; }
.form-group label { font-size: 13px; font-weight: 500; }
.form-group input, .form-group select, .form-group textarea {
    padding: 11px 14px; border: 1px solid #d4e2f0; border-radius: 6px;
    font-family: inherit; font-size: 14px; outline: none; transition: .2s; background: #fff;
}
.form-group input:focus, .form-group select:focus, .form-group textarea:focus {
    border-color: var(--brand); box-shadow: 0 0 0 3px rgba(10, 102, 194, .08);
}
.form-group textarea { resize: vertical; min-height: 110px; }
.form-hint { font-size: 12px; color: var(--muted); }
.form-msg { margin-top: 12px; padding: 10px 14px; border-radius: 6px; font-size: 14px; display: none; }
.form-msg.ok { display: block; background: #ecfdf5; color: #047857; border: 1px solid #a7f3d0; }
.form-msg.err { display: block; background: #fef2f2; color: #b91c1c; border: 1px solid #fecaca; }

/* ===== Contact ===== */
.contact-item { display: flex; gap: 12px; padding: 14px 0; border-bottom: 1px solid #f0f0f0; }
.contact-item:last-child { border-bottom: none; }
.contact-item > i { width: 20px; color: var(--brand); margin-top: 3px; }
.contact-item h4 { font-size: 13px; font-weight: 600; margin-bottom: 2px; }
.contact-item p { font-size: 14px; color: var(--body); }
.contact-item a { color: var(--brand); }
.contact-item a:hover { text-decoration: underline; }
.contact-social { display: flex; gap: 10px; margin-top: 18px; }
.contact-social a {
    width: 40px; height: 40px; display: flex; align-items: center; justify-content: center;
    background: var(--brand-soft); color: var(--brand); border-radius: 8px; font-size: 18px;
}
.contact-social a:hover { background: var(--brand); color: #fff; }

/* ===== Footer ===== */
.footer { background: #0a1628; color: rgba(255, 255, 255, .5); padding: 52px 0 0; font-size: 13px; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 40px; padding-bottom: 32px; border-bottom: 1px solid rgba(255, 255, 255, .06); }
.footer-brand h3 { color: #fff; margin-bottom: 12px; font-size: 18px; }
.footer-brand p { margin-bottom: 8px; }
.footer-links h4 { color: rgba(255, 255, 255, .8); font-size: 14px; margin-bottom: 14px; }
.footer-links ul { display: flex; flex-direction: column; gap: 8px; }
.footer-links a:hover { color: var(--brand-light); }
.footer-bottom { display: flex; justify-content: space-between; padding: 20px 0; font-size: 12px; }

/* ===== Auth Page ===== */
.auth-page { min-height: 100vh; display: flex; align-items: center; justify-content: center; padding: 40px 20px; background: linear-gradient(135deg, #0f172a, #1e293b); }
.auth-card { width: 100%; max-width: 440px; background: #fff; border-radius: 14px; padding: 40px 36px; box-shadow: 0 20px 60px rgba(0, 0, 0, .3); }
.auth-card .logo { justify-content: center; margin-bottom: 8px; }
.auth-head { text-align: center; margin-bottom: 26px; }
.auth-head h1 { font-size: 22px; font-weight: 700; margin-bottom: 6px; }
.auth-head p { font-size: 14px; color: var(--muted); }
.auth-tabs { display: flex; gap: 4px; background: var(--bg-soft); padding: 4px; border-radius: 8px; margin-bottom: 22px; }
.auth-tabs button { flex: 1; padding: 9px; border: none; background: transparent; border-radius: 6px; font-size: 14px; font-weight: 500; color: var(--muted); cursor: pointer; transition: .2s; }
.auth-tabs button.active { background: #fff; color: var(--brand); box-shadow: 0 1px 4px rgba(0, 0, 0, .08); }
.code-row { display: flex; gap: 10px; }
.code-row input { flex: 1; }
.code-row button { flex-shrink: 0; padding: 0 18px; border: 1px solid var(--brand); background: var(--brand-soft); color: var(--brand); border-radius: 6px; font-size: 14px; font-weight: 500; cursor: pointer; }
.code-row button:disabled { opacity: .55; cursor: not-allowed; }
.auth-foot { text-align: center; margin-top: 20px; font-size: 13px; color: var(--muted); }
.auth-foot a { color: var(--brand); font-weight: 500; }
.divider { display: flex; align-items: center; gap: 12px; margin: 20px 0; color: #94a3b8; font-size: 12px; }
.divider::before, .divider::after { content: ''; flex: 1; height: 1px; background: var(--line); }
.auth-alt { display: flex; flex-direction: column; gap: 10px; }
.btn-wechat { width: 100%; justify-content: center; background: #07c160; color: #fff; }
.btn-wechat:hover { background: #06ad56; }

/* ===== Member Center ===== */
.portal { background: var(--bg-soft); min-height: 100vh; }
.portal-head { background: #fff; border-bottom: 1px solid var(--line); }
.portal-head .container { display: flex; justify-content: space-between; align-items: center; height: 68px; }
.portal-user { display: flex; align-items: center; gap: 12px; font-size: 14px; color: var(--body); }
.avatar { width: 36px; height: 36px; border-radius: 50%; background: var(--brand); color: #fff; display: flex; align-items: center; justify-content: center; font-weight: 600; font-size: 15px; }
.portal-body { padding: 40px 0 70px; }
.portal-grid { display: grid; grid-template-columns: 1fr 340px; gap: 28px; align-items: start; }
.panel { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 26px; }
.panel + .panel { margin-top: 24px; }
.panel-title { display: flex; justify-content: space-between; align-items: center; margin-bottom: 18px; }
.panel-title h2 { font-size: 18px; font-weight: 600; }
.panel-title .sub { font-size: 13px; color: var(--muted); font-weight: 400; }

.dropzone {
    border: 2px dashed #cbd5e1; border-radius: var(--radius); padding: 36px 20px;
    text-align: center; cursor: pointer; transition: .2s; background: var(--bg-soft);
}
.dropzone:hover, .dropzone.drag { border-color: var(--brand); background: var(--brand-soft); }
.dropzone i { font-size: 28px; color: var(--brand); margin-bottom: 10px; }
.dropzone p { font-size: 14px; color: var(--body); margin-bottom: 4px; }
.dropzone small { font-size: 12px; color: var(--muted); }

.file-list { display: flex; flex-direction: column; gap: 10px; }
.file-row {
    display: flex; align-items: center; gap: 14px; padding: 14px 16px;
    border: 1px solid var(--line); border-radius: 8px; transition: .2s;
}
.file-row:hover { border-color: var(--brand); }
.file-icon { width: 40px; height: 40px; border-radius: 8px; background: var(--brand-soft); color: var(--brand); display: flex; align-items: center; justify-content: center; font-size: 17px; flex-shrink: 0; }
.file-meta { flex: 1; min-width: 0; }
.file-meta h4 { font-size: 14px; font-weight: 600; margin-bottom: 2px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.file-meta p { font-size: 12px; color: var(--muted); }
.file-actions { display: flex; gap: 6px; flex-shrink: 0; }
.icon-btn { width: 32px; height: 32px; border: 1px solid var(--line); background: #fff; border-radius: 6px; color: var(--muted); cursor: pointer; transition: .2s; }
.icon-btn:hover { border-color: var(--brand); color: var(--brand); }
.icon-btn.danger:hover { border-color: #dc2626; color: #dc2626; }
.progress { height: 6px; background: var(--line); border-radius: 3px; overflow: hidden; margin-top: 14px; display: none; }
.progress.show { display: block; }
.progress-bar { height: 100%; background: var(--brand); width: 0; transition: width .3s; }

.stat-mini { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.stat-mini .sm { padding: 18px; background: var(--bg-soft); border-radius: 8px; text-align: center; }
.stat-mini .sm .v { font-size: 26px; font-weight: 700; color: var(--brand); }
.stat-mini .sm .l { font-size: 12px; color: var(--muted); margin-top: 2px; }

.empty { text-align: center; padding: 44px 20px; color: var(--muted); }
.empty i { font-size: 40px; color: #cbd5e1; margin-bottom: 12px; }
.empty p { font-size: 14px; }

.alert { padding: 12px 16px; border-radius: 8px; font-size: 14px; margin-bottom: 18px; display: none; }
.alert.show { display: block; }
.alert.ok { background: #ecfdf5; color: #047857; border: 1px solid #a7f3d0; }
.alert.err { background: #fef2f2; color: #b91c1c; border: 1px solid #fecaca; }
.alert.warn { background: #fffbeb; color: #b45309; border: 1px solid #fde68a; }

.toast {
    position: fixed; top: 84px; right: 24px; z-index: 999;
    padding: 13px 20px; border-radius: 8px; font-size: 14px; color: #fff;
    background: var(--ink); box-shadow: 0 8px 24px rgba(0, 0, 0, .2);
    transform: translateX(140%); transition: transform .3s;
}
.toast.show { transform: translateX(0); }
.toast.ok { background: #047857; }
.toast.err { background: #b91c1c; }

/* ===== RTL（阿拉伯语）===== */
[dir="rtl"] body { direction: rtl; }
[dir="rtl"] .nav-toggle i.fa-bars { transform: scaleX(-1); }
[dir="rtl"] .product-link i.fa-arrow-right,
[dir="rtl"] .stat-value sup { transform: scaleX(-1); display: inline-block; }
[dir="rtl"] .lang-menu { right: auto; left: 0; }
[dir="rtl"] .lang-menu button { text-align: right; }
[dir="rtl"] .timeline { padding-left: 0; padding-right: 32px; }
[dir="rtl"] .timeline::before { left: auto; right: 7px; }
[dir="rtl"] .tl-item::before { left: auto; right: -30px; }

/* ===== 产品矩阵（参照站风格）===== */
.matrix-head { max-width: 860px; margin: 0 auto 44px; text-align: center; }
.matrix-head .eyebrow { font-size: 13px; letter-spacing: 2px; text-transform: uppercase; color: var(--brand); font-weight: 600; margin-bottom: 10px; }
.matrix-head h2 { font-size: 32px; font-weight: 700; letter-spacing: -0.5px; margin-bottom: 14px; }
.matrix-head p { color: var(--muted); font-size: 15px; line-height: 1.9; }

/* 关于数据带 */
.about-band { background: #0a1628; color: #fff; padding: 76px 0; }
.about-band .ab-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; align-items: center; }
.about-band .since { display: inline-block; padding: 6px 14px; background: rgba(59,130,246,.14); border: 1px solid rgba(59,130,246,.3); border-radius: 5px; color: #93c5fd; font-size: 12px; font-weight: 600; letter-spacing: 1px; margin-bottom: 16px; }
.about-band h2 { font-size: 30px; font-weight: 700; line-height: 1.3; margin-bottom: 16px; }
.about-band p { color: rgba(255,255,255,.62); font-size: 15px; line-height: 1.9; }
.about-band .ab-metrics { display: grid; grid-template-columns: 1fr 1fr; gap: 1px; background: rgba(255,255,255,.1); border: 1px solid rgba(255,255,255,.1); border-radius: 10px; overflow: hidden; }
.about-band .ab-metrics > div { background: #0a1628; padding: 26px 20px; text-align: center; }
.about-band .ab-metrics .v { font-size: 32px; font-weight: 800; color: #60a5fa; }
.about-band .ab-metrics .l { font-size: 13px; color: rgba(255,255,255,.55); margin-top: 4px; }

/* 定制流程 */
.process-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; counter-reset: step; }
.process-card { position: relative; background: #fff; border: 1px solid var(--line); border-radius: 10px; padding: 30px 26px 26px; transition: .25s; }
.process-card:hover { box-shadow: var(--shadow); transform: translateY(-3px); border-color: transparent; }
.process-card .step { position: absolute; top: -16px; left: 26px; width: 32px; height: 32px; border-radius: 50%; background: var(--brand); color: #fff; display: flex; align-items: center; justify-content: center; font-size: 14px; font-weight: 700; box-shadow: 0 4px 12px rgba(10,102,194,.3); }
.process-card h3 { font-size: 16px; font-weight: 600; margin: 8px 0 10px; }
.process-card p { font-size: 14px; color: var(--muted); }

/* 应用图集 */
.app-gallery { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.app-tile { position: relative; border-radius: 10px; overflow: hidden; aspect-ratio: 4/3; display: flex; align-items: flex-end; padding: 20px; color: #fff; background: linear-gradient(135deg,#1e293b,#334155); }
.app-tile::before { content: ''; position: absolute; inset: 0; background: linear-gradient(to top, rgba(0,0,0,.75) 0%, rgba(0,0,0,.15) 60%, rgba(0,0,0,.05) 100%); }
.app-tile > div { position: relative; z-index: 1; }
.app-tile .no { font-size: 12px; font-weight: 700; color: #60a5fa; margin-bottom: 4px; letter-spacing: .5px; }
.app-tile h3 { font-size: 16px; font-weight: 600; margin-bottom: 3px; }
.app-tile p { font-size: 12px; color: rgba(255,255,255,.7); }
.app-tile.t1 { background: linear-gradient(135deg,#1e3a5f,#0f172a); }
.app-tile.t2 { background: linear-gradient(135deg,#0f4c3a,#052e23); }
.app-tile.t3 { background: linear-gradient(135deg,#4a1f5c,#2a1038); }
.app-tile.t4 { background: linear-gradient(135deg,#5c3a1f,#3a2410); }
.app-tile.t5 { background: linear-gradient(135deg,#1f4c5c,#103038); }
.app-tile.t6 { background: linear-gradient(135deg,#5c1f2e,#38101a); }
.app-tile.t7 { background: linear-gradient(135deg,#2f4a1f,#1a2c10); }
.app-tile.t8 { background: linear-gradient(135deg,#3f3a1f,#2a2610); }
.app-tile.t9 { background: linear-gradient(135deg,#1f3a4a,#102430); }
.app-tile.t10 { background: linear-gradient(135deg,#4a1f3a,#2a1022); }
.app-tile.t11 { background: linear-gradient(135deg,#26401f,#16260f); }

/* 技术品类矩阵（首页） */
.tech-strip { padding-top: 68px; background: #f8fafc; border-bottom: 1px solid var(--line); }
.tech-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.tech-item { display: block; background: #fff; border: 1px solid var(--line); border-radius: 10px; padding: 24px 22px; text-decoration: none; transition: .2s; }
.tech-item:hover { border-color: var(--brand); transform: translateY(-3px); box-shadow: 0 8px 22px rgba(10,102,194,.10); }
.tech-item i { font-size: 22px; color: var(--brand); margin-bottom: 12px; display: block; }
.tech-item h3 { font-size: 15px; font-weight: 600; color: var(--ink); margin-bottom: 6px; }
.tech-item p { font-size: 12.5px; color: var(--muted); line-height: 1.65; }

/* 分类能力卡（产品页） */
.cap-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.cap-card { background: #fff; border: 1px solid var(--line); border-radius: 10px; padding: 24px 22px; transition: .2s; }
.cap-card:hover { border-color: var(--brand); box-shadow: 0 6px 18px rgba(10,102,194,.08); }
.cap-head { display: flex; align-items: center; gap: 10px; margin-bottom: 12px; }
.cap-head i { width: 34px; height: 34px; border-radius: 8px; background: var(--brand-soft); color: var(--brand); display: flex; align-items: center; justify-content: center; font-size: 15px; flex-shrink: 0; }
.cap-head h3 { font-size: 15px; font-weight: 600; color: var(--ink); }
.cap-range { display: inline-block; font-size: 12px; font-weight: 600; color: var(--brand); background: var(--brand-soft); padding: 3px 10px; border-radius: 20px; margin-bottom: 11px; }
.cap-card > p:not(.cap-range) { font-size: 13px; color: var(--muted); line-height: 1.7; margin-bottom: 13px; }
.cap-list { list-style: none; padding: 0; margin: 0; border-top: 1px solid #f1f5f9; padding-top: 12px; }
.cap-list li { font-size: 12.5px; color: #475569; line-height: 1.7; padding-left: 14px; position: relative; }
.cap-list li::before { content: ''; position: absolute; left: 0; top: 9px; width: 5px; height: 5px; border-radius: 50%; background: var(--brand); }

/* 定制能力全清单 */
.scope-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.scope-col { background: #f8fafc; border: 1px solid var(--line); border-radius: 10px; padding: 24px 22px; }
.scope-col h3 { font-size: 15px; font-weight: 600; color: var(--ink); margin-bottom: 14px; display: flex; align-items: center; gap: 9px; }
.scope-col h3 i { color: var(--brand); font-size: 15px; }
.scope-col ul { list-style: none; padding: 0; margin: 0; }
.scope-col li { font-size: 13px; color: #475569; line-height: 1.75; padding: 6px 0; border-bottom: 1px dashed #e2e8f0; }
.scope-col li:last-child { border-bottom: none; }

/* 品质管理流程 */
.flow { display: grid; grid-template-columns: repeat(5, 1fr); gap: 14px; margin-bottom: 44px; }
.flow-step { position: relative; background: #fff; border: 1px solid var(--line); border-radius: 10px; padding: 22px 20px; }
.flow-step .n { width: 30px; height: 30px; border-radius: 50%; background: var(--brand); color: #fff; display: flex; align-items: center; justify-content: center; font-size: 13px; font-weight: 700; margin-bottom: 12px; }
.flow-step h4 { font-size: 14px; font-weight: 600; color: var(--ink); margin-bottom: 7px; }
.flow-step p { font-size: 12.5px; color: var(--muted); line-height: 1.7; }

/* 可靠性测试 */
.rel-block { background: #f8fafc; border: 1px solid var(--line); border-radius: 12px; padding: 32px 30px; }
.rel-block h3 { font-size: 19px; font-weight: 600; color: var(--ink); margin-bottom: 9px; }
.rel-block > p { font-size: 13.5px; color: var(--muted); line-height: 1.75; margin-bottom: 22px; max-width: 900px; }
.rel-grid { display: grid; grid-template-columns: repeat(6, 1fr); gap: 12px; }
.rel-item { background: #fff; border: 1px solid var(--line); border-radius: 8px; padding: 16px 12px; text-align: center; }
.rel-item i { font-size: 19px; color: var(--brand); display: block; margin-bottom: 9px; }
.rel-item span { font-size: 12.5px; font-weight: 500; color: #475569; line-height: 1.5; display: block; }
.rel-note { font-size: 12px; color: #94a3b8; line-height: 1.7; margin-top: 18px; font-style: italic; }

/* 产品卡三入口 */
.product-actions { display: flex; gap: 6px; margin-top: 16px; flex-wrap: wrap; }
.pa-btn { flex: 1; min-width: 92px; display: inline-flex; align-items: center; justify-content: center; gap: 5px; padding: 8px 10px; border: 1px solid var(--line); border-radius: 6px; font-size: 12px; font-weight: 500; color: #475569; text-decoration: none; background: #fff; transition: .16s; white-space: nowrap; }
.pa-btn:hover { border-color: var(--brand); color: var(--brand); background: var(--brand-soft); }
.pa-btn.pa-primary { background: var(--brand); border-color: var(--brand); color: #fff; }
.pa-btn.pa-primary:hover { background: #0856ab; border-color: #0856ab; color: #fff; }
.pa-btn i { font-size: 11px; }

/* 表单：文件上传与提示 */
input[type="file"] { width: 100%; padding: 9px 12px; border: 1px solid var(--line); border-radius: 6px; font-size: 13px; background: #fff; font-family: inherit; cursor: pointer; }
input[type="file"]::file-selector-button { background: var(--brand-soft); border: none; color: var(--brand); padding: 6px 13px; border-radius: 4px; cursor: pointer; margin-right: 10px; font-family: inherit; font-size: 12.5px; font-weight: 500; }
.form-hint { font-size: 11.5px; color: #94a3b8; line-height: 1.6; margin-top: 6px; }

/* 新闻 + FAQ 双栏 */
.duo { display: grid; grid-template-columns: 1.15fr .85fr; gap: 32px; align-items: start; }
.duo-panel { background: #fff; border: 1px solid var(--line); border-radius: 10px; overflow: hidden; }
.duo-head { display: flex; justify-content: space-between; align-items: center; padding: 18px 22px; border-bottom: 1px solid var(--line); }
.duo-head h3 { font-size: 17px; font-weight: 600; }
.duo-head a { font-size: 13px; color: var(--brand); font-weight: 500; }
.news-item { display: flex; gap: 16px; padding: 18px 22px; border-bottom: 1px solid #f1f5f9; transition: .18s; }
.news-item:last-child { border-bottom: none; }
.news-item:hover { background: var(--brand-soft); }
.news-thumb { width: 92px; height: 66px; border-radius: 6px; object-fit: cover; flex-shrink: 0; background: var(--line); }
.news-body { flex: 1; min-width: 0; }
.news-body .tag { display: inline-block; padding: 1px 8px; background: var(--brand-soft); color: var(--brand); border-radius: 3px; font-size: 11px; font-weight: 500; margin-bottom: 6px; }
.news-body h4 { font-size: 14px; font-weight: 600; margin-bottom: 4px; line-height: 1.45; }
.news-body p { font-size: 13px; color: var(--muted); line-height: 1.6; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }

.faq-item { border-bottom: 1px solid #f1f5f9; }
.faq-item:last-child { border-bottom: none; }
.faq-q { width: 100%; text-align: left; background: none; border: none; padding: 17px 22px; font-size: 14px; font-weight: 600; color: var(--ink); cursor: pointer; display: flex; justify-content: space-between; gap: 12px; align-items: flex-start; transition: .15s; font-family: inherit; line-height: 1.5; }
.faq-q:hover { color: var(--brand); }
.faq-q i { color: #94a3b8; font-size: 13px; margin-top: 3px; flex-shrink: 0; transition: .2s; }
.faq-item.open .faq-q i { transform: rotate(180deg); color: var(--brand); }
.faq-a { max-height: 0; overflow: hidden; transition: max-height .3s ease; }
.faq-a p { padding: 0 22px 18px; font-size: 13px; color: var(--muted); line-height: 1.8; }

/* 联系条 */
.contact-strip { background: linear-gradient(135deg, #0a1628, #1e293b); color: #fff; padding: 56px 0; }
.contact-strip .cs-grid { display: grid; grid-template-columns: 1.2fr 1fr; gap: 48px; align-items: center; }
.contact-strip h2 { font-size: 28px; font-weight: 700; margin-bottom: 10px; }
.contact-strip p { color: rgba(255,255,255,.6); font-size: 15px; line-height: 1.8; }
.contact-strip .cs-items { display: grid; grid-template-columns: 1fr 1fr; gap: 18px 24px; }
.contact-strip .cs-item { display: flex; gap: 12px; align-items: flex-start; }
.contact-strip .cs-item i { width: 20px; color: #60a5fa; margin-top: 3px; }
.contact-strip .cs-item h4 { font-size: 12px; color: rgba(255,255,255,.5); font-weight: 500; margin-bottom: 2px; }
.contact-strip .cs-item p { font-size: 14px; color: #fff; }

/* 响应式 */
@media (max-width: 1024px) {
    .hero .container { grid-template-columns: 1fr; gap: 40px; }
    .grid-3, .grid-2, .portal-grid { grid-template-columns: 1fr; }
    .grid-4 { grid-template-columns: repeat(2, 1fr); }
    .stats-band { grid-template-columns: repeat(2, 1fr); }
    .footer-grid { grid-template-columns: 1fr 1fr; }
    .process-grid { grid-template-columns: repeat(2, 1fr); }
    .about-band .ab-grid { grid-template-columns: 1fr; gap: 36px; }
    .duo { grid-template-columns: 1fr; }
    .contact-strip .cs-grid { grid-template-columns: 1fr; gap: 32px; }
    .tech-grid { grid-template-columns: repeat(2, 1fr); }
    .cap-grid { grid-template-columns: repeat(2, 1fr); }
    .scope-grid { grid-template-columns: repeat(2, 1fr); }
    .flow { grid-template-columns: repeat(3, 1fr); }
    .rel-grid { grid-template-columns: repeat(3, 1fr); }
}
@media (max-width: 768px) {
    .hero h1 { font-size: 30px; }
    .hero-stats { grid-template-columns: repeat(2, 1fr); }
    .grid-4, .footer-grid { grid-template-columns: 1fr; }
    .process-grid { grid-template-columns: 1fr; }
    .app-gallery { grid-template-columns: repeat(2, 1fr); }
    .tech-grid, .cap-grid, .scope-grid { grid-template-columns: 1fr; }
    .flow { grid-template-columns: 1fr; }
    .rel-grid { grid-template-columns: repeat(2, 1fr); }
    .rel-block { padding: 24px 20px; }
    .about-band .ab-metrics { grid-template-columns: 1fr 1fr; }
    .contact-strip .cs-items { grid-template-columns: 1fr; }
    .form-row { grid-template-columns: 1fr; }
    .nav { display: none; }
    .nav.open {
        display: flex; flex-direction: column; position: absolute; top: 68px; left: 0; right: 0;
        background: #fff; border-bottom: 1px solid var(--line); padding: 12px; gap: 2px;
        box-shadow: 0 8px 20px rgba(0, 0, 0, .06);
    }
    .nav-toggle { display: block; }
    .section { padding: 60px 0; }
    .section-header h2 { font-size: 26px; }
    .lang-menu { position: fixed; top: 76px; right: 12px; left: 12px; min-width: 0; }
}
/* ===== 规格弹层（产品卡 Specifications） ===== */
.spec-overlay {
    position: fixed; inset: 0; background: rgba(15, 23, 42, .62);
    z-index: 1200; display: flex; align-items: flex-start; justify-content: center;
    padding: 48px 20px; overflow-y: auto;
}
.spec-modal {
    background: #fff; border-radius: 12px; width: 100%; max-width: 680px;
    box-shadow: 0 24px 60px rgba(15, 23, 42, .28); overflow: hidden;
}
.spec-head {
    display: flex; justify-content: space-between; align-items: flex-start; gap: 18px;
    padding: 26px 30px 20px; border-bottom: 1px solid var(--line);
}
.spec-head h3 { font-size: 20px; font-weight: 700; line-height: 1.35; color: var(--ink); }
.spec-head p { font-size: 12.5px; color: #94a3b8; margin-top: 5px; }
.spec-close {
    background: none; border: none; font-size: 26px; line-height: 1;
    color: #94a3b8; cursor: pointer; padding: 0 4px; flex-shrink: 0;
}
.spec-close:hover { color: var(--ink); }
.spec-body { padding: 22px 30px 8px; }
.spec-desc { font-size: 14px; color: #475569; line-height: 1.8; margin-bottom: 20px; }
.spec-foot {
    display: flex; gap: 10px; justify-content: flex-end; flex-wrap: wrap;
    padding: 18px 30px 24px; border-top: 1px solid var(--line); background: #f8fafc;
}
.spec-foot .btn { text-decoration: none; }

/* 规格表（弹层与数据表共用） */
.spec-list { margin: 0; padding: 0; }
.spec-row {
    display: grid; grid-template-columns: 190px 1fr; gap: 16px;
    padding: 11px 0; border-bottom: 1px solid #f1f5f9;
}
.spec-row:last-child { border-bottom: none; }
.spec-row dt { font-size: 13px; color: #64748b; font-weight: 500; line-height: 1.6; }
.spec-row dd { font-size: 13.5px; color: var(--ink); font-weight: 500; line-height: 1.6; margin: 0; }
.ds-empty { font-size: 14px; color: #64748b; line-height: 1.8; }

@media (max-width: 768px) {
    .spec-overlay { padding: 20px 12px; }
    .spec-head { padding: 20px 20px 16px; }
    .spec-body { padding: 18px 20px 6px; }
    .spec-foot { padding: 16px 20px 20px; }
    .spec-row { grid-template-columns: 1fr; gap: 3px; }
}

/* 定制区 -> 技术文章 引导条（建议 #4） */
.scope-news {
    display: flex; align-items: center; gap: 18px; flex-wrap: wrap;
    margin-top: 26px; padding: 20px 24px;
    background: #f0f6ff; border: 1px solid #d4e2f0; border-radius: 10px;
}
.scope-news > i { font-size: 20px; color: var(--brand); flex-shrink: 0; }
.scope-news p { flex: 1; min-width: 260px; font-size: 13.5px; color: #475569; line-height: 1.7; margin: 0; }
.scope-news .btn { text-decoration: none; padding: 9px 20px; font-size: 13px; flex-shrink: 0; }

/* ===== 工厂实拍（建议 #7） ===== */
.fac-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
.fac-item { margin: 0; position: relative; border-radius: 10px; overflow: hidden; background: #0f172a; }
.fac-item img { width: 100%; height: 100%; object-fit: cover; display: block; aspect-ratio: 16/9; transition: transform .35s ease; }
.fac-item:hover img { transform: scale(1.04); }
.fac-item figcaption {
    position: absolute; left: 0; right: 0; bottom: 0; padding: 26px 14px 11px;
    background: linear-gradient(to top, rgba(8,15,30,.86), rgba(8,15,30,0));
    color: #fff; font-size: 12.5px; font-weight: 500; line-height: 1.4;
}
.fac-note { font-size: 12px; color: #94a3b8; margin-top: 16px; font-style: italic; }

/* ===== 认证与合规（建议 #10） ===== */
.cert-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.cert-card {
    background: #fff; border: 1px solid var(--line); border-radius: 10px;
    padding: 28px 22px; text-align: center; transition: .2s;
}
.cert-card:hover { border-color: var(--brand); box-shadow: 0 6px 18px rgba(10,102,194,.08); }
.cert-card i { font-size: 26px; color: var(--brand); margin-bottom: 14px; display: block; }
.cert-card h3 { font-size: 14px; font-weight: 600; color: var(--ink); line-height: 1.55; }
.cert-note { font-size: 12.5px; color: #94a3b8; margin-top: 18px; line-height: 1.7; }

/* ===== 部分全球客户（建议 #15） ===== */
.cus-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.cus-item {
    background: #fff; border: 1px solid var(--line); border-radius: 10px;
    height: 96px; display: flex; align-items: center; justify-content: center;
    padding: 18px 22px; transition: .2s;
}
.cus-item:hover { border-color: #cbd5e1; box-shadow: 0 4px 14px rgba(15,23,42,.06); }
.cus-item img { max-width: 100%; max-height: 100%; object-fit: contain; filter: grayscale(1); opacity: .72; transition: .25s; }
.cus-item:hover img { filter: none; opacity: 1; }
.cus-note { font-size: 11.5px; color: #94a3b8; margin-top: 18px; line-height: 1.7; }

/* ===== 可靠性测试条件（建议 #9） ===== */
.rel-grid-cond { grid-template-columns: repeat(3, 1fr); }
.rel-grid-cond .rel-item { padding: 18px 14px; text-align: left; }
.rel-grid-cond .rel-item > span { font-weight: 600; color: var(--ink); margin-bottom: 7px; }
.rel-item em {
    display: block; font-style: normal; font-size: 11.5px; color: #64748b;
    line-height: 1.6; padding-top: 7px; border-top: 1px dashed #e2e8f0; margin-top: 7px;
}
.rel-handling {
    margin-top: 22px; background: #fff; border: 1px solid var(--line);
    border-radius: 10px; padding: 22px 24px;
}
.rel-handling h4 { font-size: 14.5px; font-weight: 600; color: var(--ink); margin-bottom: 13px; display: flex; align-items: center; gap: 9px; }
.rel-handling h4 i { color: var(--brand); font-size: 14px; }
.rel-handling ul { list-style: none; padding: 0; margin: 0; }
.rel-handling li { font-size: 13px; color: #475569; line-height: 1.75; padding: 6px 0 6px 16px; position: relative; }
.rel-handling li::before { content: ''; position: absolute; left: 0; top: 13px; width: 5px; height: 5px; border-radius: 50%; background: var(--brand); }

@media (max-width: 1024px) {
    .fac-grid { grid-template-columns: repeat(2, 1fr); }
    .cert-grid, .cus-grid { grid-template-columns: repeat(2, 1fr); }
    .rel-grid-cond { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 768px) {
    .fac-grid, .cert-grid, .cus-grid { grid-template-columns: 1fr; }
    .rel-grid-cond { grid-template-columns: 1fr; }
}

/* 产品数据加载失败时的占位 */
.grid-empty { grid-column: 1 / -1; text-align: center; padding: 64px 20px; color: #94a3b8; font-size: 14px; }