/* =========================================================
   pages.css  —  Collection / Sustainability / Technology / Contact
   Design language: primary #0A3D91 · secondary #1E6FD9 · accent #4DA3FF
   Headings: Playfair Display · Body: Inter · Cards radius 14px
   Sections padding 80px · max-width 1100px
   ========================================================= */

/* ============ Shared page-hero (Contact + base) ============ */
.page-hero { padding: 160px 24px 100px; text-align: center; background: linear-gradient(135deg, #0A3D91 0%, #1E6FD9 60%, #4DA3FF 100%); color: #fff; position: relative; overflow: hidden; }
.page-hero::before { content: ''; position: absolute; inset: 0; background: radial-gradient(circle at 20% 30%, rgba(255,255,255,0.1) 0%, transparent 50%), radial-gradient(circle at 80% 70%, rgba(255,255,255,0.08) 0%, transparent 40%); }
.page-hero__inner { position: relative; z-index: 1; max-width: 900px; margin: 0 auto; }
.page-hero__crumb { font-size: 13px; letter-spacing: 0.15em; text-transform: uppercase; opacity: 0.85; margin-bottom: 16px; }
.page-hero__crumb a { color: rgba(255,255,255,0.8); text-decoration: none; }
.page-hero__crumb a:hover { color: #fff; text-decoration: underline; }
.page-hero__title { font-family: 'Playfair Display', serif; font-size: 56px; font-weight: 700; line-height: 1.15; margin-bottom: 20px; }
.page-hero__sub { font-size: 17px; line-height: 1.7; opacity: 0.92; max-width: 640px; margin: 0 auto; }


/* ============================================================
   COLLECTION PAGE
   ============================================================ */
.col-hero { text-align: center; background: linear-gradient(135deg, #0A3D91 0%, #1E6FD9 60%, #4DA3FF 100%); color: #fff; position: relative; overflow: hidden; }
.col-hero::before { content: ''; position: absolute; inset: 0; background: radial-gradient(circle at 20% 30%, rgba(255,255,255,0.1) 0%, transparent 50%), radial-gradient(circle at 80% 70%, rgba(255,255,255,0.08) 0%, transparent 40%); }
.col-hero__inner { position: relative; z-index: 1; max-width: 900px; margin: 0 auto; }
.col-hero__crumb { font-size: 13px; letter-spacing: 0.15em; text-transform: uppercase; opacity: 0.85; margin-bottom: 16px; }
.col-hero__crumb a { color: rgba(255,255,255,0.8); text-decoration: none; }
.col-hero__crumb a:hover { color: #fff; text-decoration: underline; }
.col-hero__title { font-family: 'Playfair Display', serif; font-size: 56px; font-weight: 700; letter-spacing: -0.01em; line-height: 1.15; margin-bottom: 20px; }
.col-hero__sub { font-size: 17px; line-height: 1.7; opacity: 0.92; max-width: 640px; margin: 0 auto; }

.col-layout { width: 100%; margin: 0; padding: 80px 0 80px 32px; display: grid; grid-template-columns: 240px 1fr; gap: 48px; align-items: start; }

.col-timeline { position: sticky; top: 100px; padding-right: 16px; border-right: 1px solid #eef1f6; }
.col-timeline__title { font-family: 'Playfair Display', serif; font-size: 18px; font-weight: 700; color: #0A3D91; margin-bottom: 20px; letter-spacing: 0.02em; }
.col-timeline__group { margin-bottom: 24px; }
.col-timeline__group-title { font-size: 12px; font-weight: 700; color: #94a3b8; letter-spacing: 0.1em; text-transform: uppercase; margin-bottom: 10px; }
.col-timeline__list { list-style: none; margin: 0; padding: 0; }
.col-timeline__item { margin-bottom: 6px; }
.col-timeline__link { display: flex; justify-content: space-between; align-items: center; padding: 8px 12px; border-radius: 8px; font-size: 13px; color: #475569; text-decoration: none; transition: all 0.25s; border-left: 2px solid transparent; }
.col-timeline__link:hover { background: #f1f5f9; color: #0A3D91; border-left-color: #1E6FD9; }
.col-timeline__year { font-family: 'Playfair Display', serif; font-size: 14px; font-weight: 700; color: #0A3D91; }

.col-content { min-width: 0; max-width: 812px; margin: 0 auto; }
.col-group { margin-bottom: 56px; }
.col-group__title { display: flex; align-items: baseline; gap: 14px; margin-bottom: 28px; padding-bottom: 14px; border-bottom: 2px solid #eef1f6; }
.col-group__title-en { font-family: 'Playfair Display', serif; font-size: 28px; font-weight: 700; color: #0f172a; }
.col-group__count { font-size: 13px; font-weight: 600; color: #1E6FD9; background: rgba(30,111,217,0.1); padding: 4px 12px; border-radius: 999px; }

.col-series { background: #fff; border: 1px solid #eef1f6; border-radius: 14px; overflow: hidden; margin-bottom: 24px; transition: all 0.3s; }
.col-series:hover { border-color: #1E6FD9; box-shadow: 0 16px 48px rgba(30,111,217,0.12); transform: translateY(-3px); }
.col-series__header { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding: 20px 24px; border-bottom: 1px solid #f1f5f9; }
.col-series__year-badge { display: inline-flex; align-items: center; font-family: 'Playfair Display', serif; font-size: 20px; font-weight: 700; color: #0A3D91; background: linear-gradient(135deg, rgba(10,61,145,0.06), rgba(77,163,255,0.06)); padding: 6px 14px; border-radius: 8px; }
.col-series__headinfo { display: flex; flex-direction: column; gap: 4px; }
.col-series__tag { display: inline-block; font-size: 11px; font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase; padding: 3px 10px; border-radius: 999px; margin-bottom: 4px; align-self: flex-start; }
.col-series__tag--new { color: #fff; background: #1E6FD9; }
.col-series__tag--classic { color: #0A3D91; background: rgba(10,61,145,0.1); }
.col-series__tag--hot { color: #fff; background: linear-gradient(135deg, #dc2626, #f97316); }
.col-series__tag--photo { color: #0f172a; background: #e2e8f0; }
.col-series__tag--eco { color: #fff; background: linear-gradient(135deg, #047857, #10b981); }
.col-series__name { font-family: 'Playfair Display', serif; font-size: 22px; font-weight: 700; color: #0f172a; }
.col-series__date { font-size: 13px; color: #64748b; }

.col-series__visual { height: 480px; background: linear-gradient(135deg, #0A3D91, #1E6FD9, #4DA3FF); position: relative; overflow: hidden; }
.col-series__visual::after { content: ''; position: absolute; inset: 16px; border: 2px solid rgba(255,255,255,0.3); border-radius: 10px; }
.col-series__cover { position: absolute; inset: 0; display: grid; place-items: center; }
.col-series__cover-label { font-family: 'Playfair Display', serif; font-size: 28px; font-weight: 700; color: rgba(255,255,255,0.95); letter-spacing: 0.04em; z-index: 1; }

.col-series__strips { display: grid; grid-template-columns: repeat(auto-fit, minmax(140px, 1fr)); gap: 0; border-top: 1px solid #f1f5f9; }
.col-series__strip { padding: 16px 20px; border-right: 1px solid #f1f5f9; background: #fafbfc; }
.col-series__strip:last-child { border-right: none; }
.col-series__strip-label { font-size: 11px; font-weight: 600; letter-spacing: 0.06em; text-transform: uppercase; color: #94a3b8; margin-bottom: 4px; }
.col-series__story { padding: 24px; font-size: 15px; line-height: 1.85; color: #475569; }
.col-series__meta { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: 16px; padding: 20px 24px; background: #f8fafc; border-top: 1px solid #f1f5f9; }
.col-series__meta-item { display: flex; flex-direction: column; gap: 4px; }
.col-series__meta-label { font-size: 11px; font-weight: 600; letter-spacing: 0.06em; text-transform: uppercase; color: #94a3b8; }
.col-series__meta-value { font-size: 15px; font-weight: 600; color: #0f172a; }
.col-series__cta { display: inline-flex; align-items: center; gap: 6px; margin: 0 24px 24px; padding: 12px 28px; background: #0A3D91; color: #fff; font-size: 14px; font-weight: 600; border: none; border-radius: 8px; cursor: pointer; transition: all 0.25s; font-family: inherit; }
.col-series__cta:hover { background: #1E6FD9; transform: translateY(-1px); box-shadow: 0 4px 16px rgba(30,111,217,0.3); }

/* ---------- Hero 轮播 ---------- */
.col-hero__carousel { position: relative; width: 100%; height: 480px; overflow: hidden; }
.col-hero__slide { position: absolute; inset: 0; opacity: 0; transition: opacity 0.8s ease-in-out; display: flex; align-items: center; justify-content: center; }
.col-hero__slide.is-active { opacity: 1; }
.col-hero__slide-inner { position: relative; z-index: 1; max-width: 900px; margin: 0 auto; text-align: center; padding: 0 24px; }
.col-hero__series-name { font-family: 'Playfair Display', serif; font-size: 24px; font-weight: 700; color: rgba(255,255,255,0.95); margin-bottom: 12px; letter-spacing: 0.02em; }
.col-hero__dots { position: absolute; bottom: 24px; left: 50%; transform: translateX(-50%); display: flex; gap: 10px; z-index: 2; }
.col-hero__dot { width: 10px; height: 10px; border-radius: 50%; border: 2px solid rgba(255,255,255,0.6); background: transparent; cursor: pointer; padding: 0; transition: all 0.25s; }
.col-hero__dot.is-active { background: #fff; border-color: #fff; }

/* ---------- 系列画廊（横向平铺） ---------- */
.col-series__gallery { padding: 0 24px 24px; border-top: 1px solid #f1f5f9; margin-top: 0; max-height: 0; overflow: hidden; transition: max-height 0.5s ease, padding 0.3s ease; padding-top: 0; padding-bottom: 0; }
.col-series__gallery.is-open { max-height: 600px; padding-top: 16px; padding-bottom: 24px; }
.col-series__gallery-title { font-size: 13px; font-weight: 700; color: #0A3D91; margin: 0 0 10px; letter-spacing: 0.06em; text-transform: uppercase; display: flex; align-items: center; gap: 8px; }
.col-series__gallery-title::before { content: ''; width: 4px; height: 16px; background: #1E6FD9; border-radius: 2px; }
.col-series__gallery-strip { display: flex; gap: 12px; overflow-x: auto; padding-bottom: 8px; scroll-snap-type: x mandatory; }
.col-series__gallery-strip::-webkit-scrollbar { height: 6px; }
.col-series__gallery-strip::-webkit-scrollbar-track { background: #f1f5f9; border-radius: 3px; }
.col-series__gallery-strip::-webkit-scrollbar-thumb { background: #cbd5e1; border-radius: 3px; }
.col-series__gallery-item { flex: 0 0 180px; height: 200px; border-radius: 10px; scroll-snap-align: start; display: flex; flex-direction: column; justify-content: flex-end; padding: 12px; color: #fff; font-size: 12px; font-weight: 600; letter-spacing: 0.05em; box-shadow: 0 4px 16px rgba(0,0,0,0.15); transition: transform 0.25s, box-shadow 0.25s; cursor: pointer; position: relative; overflow: hidden; }
.col-series__gallery-item:hover { transform: translateY(-3px); box-shadow: 0 8px 24px rgba(0,0,0,0.22); }
.col-series__gallery-item-tag { display: inline-block; align-self: flex-start; font-size: 10px; font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase; padding: 2px 8px; border-radius: 4px; background: rgba(255,255,255,0.25); backdrop-filter: blur(6px); margin-bottom: 6px; }
.col-series__gallery-item-name { background: rgba(0,0,0,0.28); padding: 4px 10px; border-radius: 6px; backdrop-filter: blur(4px); }
.col-series__cta-toggle { display: inline-flex; align-items: center; gap: 6px; margin: 0 24px 24px; padding: 12px 28px; background: #0A3D91; color: #fff; font-size: 14px; font-weight: 600; border: none; border-radius: 8px; cursor: pointer; transition: all 0.25s; font-family: inherit; }
.col-series__cta-toggle:hover { background: #1E6FD9; transform: translateY(-1px); box-shadow: 0 4px 16px rgba(30,111,217,0.3); }
.col-series__cta-toggle .chevron { transition: transform 0.3s; }
.col-series__cta-toggle.is-open .chevron { transform: rotate(180deg); }
@media (max-width: 640px) {
    .col-series__visual { height: 240px; }
    .col-series__gallery-item { flex: 0 0 140px; height: 160px; }
}


/* ============================================================
   SUSTAINABILITY PAGE
   ============================================================ */
.eco-hero { padding: 120px 24px 80px; text-align: center; background: linear-gradient(135deg, #064e3b 0%, #047857 100%); color: #fff; position: relative; overflow: hidden; }
.eco-hero::before { content: ''; position: absolute; inset: 0; background: radial-gradient(circle at 20% 30%, rgba(255,255,255,0.12) 0%, transparent 50%), radial-gradient(circle at 80% 70%, rgba(16,185,129,0.18) 0%, transparent 45%); }
.eco-hero__inner { position: relative; z-index: 1; max-width: 900px; margin: 0 auto; }
.eco-hero__crumb { font-size: 13px; letter-spacing: 0.15em; text-transform: uppercase; opacity: 0.85; margin-bottom: 16px; }
.eco-hero__crumb a { color: rgba(255,255,255,0.8); text-decoration: none; }
.eco-hero__crumb a:hover { color: #fff; text-decoration: underline; }
.eco-hero__title { font-family: 'Playfair Display', serif; font-size: 56px; font-weight: 700; line-height: 1.15; margin-bottom: 20px; }
.eco-hero__sub { font-size: 17px; line-height: 1.7; opacity: 0.92; max-width: 640px; margin: 0 auto; }

/* 4 种环保材质卡片 — 位于 hero 底部，悬浮于内容区之上 */
.eco-topgrid { max-width: 1100px; margin: -40px auto 0; padding: 0 24px 60px; position: relative; z-index: 2; display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.eco-topgrid__card { background: #fff; border-radius: 14px; padding: 28px 20px; text-align: center; box-shadow: 0 8px 32px rgba(6,78,59,0.1); transition: all 0.3s; text-decoration: none; color: inherit; display: block; }
.eco-topgrid__card:hover { transform: translateY(-4px); box-shadow: 0 16px 48px rgba(6,78,59,0.16); }
.eco-topgrid__badge { width: 40px; height: 40px; border-radius: 10px; margin: 0 auto 14px; }
.eco-topgrid__badge--ocean { background: linear-gradient(135deg, #0c4a6e, #0ea5e9); }
.eco-topgrid__badge--coffee { background: linear-gradient(135deg, #44322c, #b45309); }
.eco-topgrid__badge--sugarcane { background: linear-gradient(135deg, #14532d, #4ade80); }
.eco-topgrid__badge--forest { background: linear-gradient(135deg, #422006, #92400e); }
.eco-topgrid__name { font-family: 'Playfair Display', serif; font-size: 17px; font-weight: 700; color: #0f172a; margin-bottom: 6px; }
.eco-topgrid__subtitle { font-size: 13px; color: #64748b; line-height: 1.6; }
@media (max-width: 768px) {
    .eco-topgrid { grid-template-columns: repeat(2, 1fr); }
}

.eco-stats { background: #fff; padding: 48px 24px; border-bottom: 1px solid #eef1f6; }
.eco-stats__inner { max-width: 1100px; margin: 0 auto; display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; text-align: center; }
.eco-stats__num { font-family: 'Playfair Display', serif; font-size: 48px; font-weight: 700; color: #047857; line-height: 1; margin-bottom: 8px; }
.eco-stats__num sup { font-size: 24px; }
.eco-stats__label { font-size: 13px; color: #64748b; letter-spacing: 0.06em; text-transform: uppercase; font-weight: 600; }

.eco-section { padding: 80px 24px; }
.eco-section--alt { background: #f0fdf4; }
.eco-section__inner { max-width: 1100px; margin: 0 auto; }
.eco-section__title { font-family: 'Playfair Display', serif; font-size: 36px; font-weight: 700; color: #0f172a; margin-bottom: 16px; }
.eco-section__desc { font-size: 16px; color: #475569; line-height: 1.8; max-width: 720px; margin-bottom: 48px; }

.eco-concept { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.eco-concept__card { background: #fff; border-radius: 14px; padding: 36px 28px; border: 1px solid #eef1f6; transition: all 0.3s; }
.eco-concept__card:hover { border-color: #047857; box-shadow: 0 12px 36px rgba(4,120,87,0.12); transform: translateY(-4px); }

.eco-materials { display: grid; grid-template-columns: repeat(2, 1fr); gap: 32px; }
.eco-material { background: #fff; border-radius: 14px; overflow: hidden; border: 1px solid #eef1f6; transition: all 0.3s; display: flex; flex-direction: column; }
.eco-material:hover { border-color: #047857; box-shadow: 0 16px 48px rgba(4,120,87,0.12); transform: translateY(-4px); }
.eco-material__visual { height: 200px; background: linear-gradient(135deg, #064e3b, #047857, #10b981); position: relative; }
.eco-material__visual::after { content: ''; position: absolute; inset: 16px; border: 2px solid rgba(255,255,255,0.3); border-radius: 10px; }
.eco-material__body { padding: 28px; flex: 1; display: flex; flex-direction: column; }
.eco-material__tag { display: inline-block; align-self: flex-start; font-size: 11px; font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase; padding: 4px 12px; border-radius: 999px; color: #fff; background: #047857; margin-bottom: 14px; }
.eco-material__name { font-family: 'Playfair Display', serif; font-size: 22px; font-weight: 700; color: #0f172a; margin-bottom: 10px; }
.eco-material__desc { font-size: 14px; color: #64748b; line-height: 1.75; margin-bottom: 20px; }
.eco-material__specs { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; padding: 16px 0; border-top: 1px solid #f1f5f9; margin-bottom: 20px; }
.eco-material__spec { display: flex; flex-direction: column; gap: 4px; }
.eco-material__spec-label { font-size: 11px; font-weight: 600; letter-spacing: 0.06em; text-transform: uppercase; color: #94a3b8; }
.eco-material__spec-value { font-size: 15px; font-weight: 600; color: #0f172a; }
.eco-material__cta { align-self: flex-start; display: inline-block; padding: 10px 22px; background: #047857; color: #fff; font-size: 14px; font-weight: 600; border-radius: 8px; text-decoration: none; transition: background 0.25s; }
.eco-material__cta:hover { background: #064e3b; }

/* ---- 环保材质系列：大图 + 镜片图穿插布局 ---- */
.eco-story { display: flex; flex-direction: column; gap: 64px; }
.eco-story__block { background: #fff; border-radius: 16px; overflow: hidden; border: 1px solid #eef1f6; transition: all 0.3s; }
.eco-story__block:hover { border-color: #047857; box-shadow: 0 16px 48px rgba(4,120,87,0.12); }
.eco-story__hero { height: 320px; position: relative; display: flex; align-items: flex-end; overflow: hidden; }
.eco-story__hero--ocean { background: linear-gradient(135deg, #0c4a6e, #0369a1, #0ea5e9); }
.eco-story__hero--coffee { background: linear-gradient(135deg, #44322c, #78350f, #b45309); }
.eco-story__hero--sugarcane { background: linear-gradient(135deg, #14532d, #16a34a, #4ade80); }
.eco-story__hero--forest { background: linear-gradient(135deg, #422006, #78350f, #92400e); }
.eco-story__hero-overlay { padding: 32px 40px; color: #fff; position: relative; z-index: 1; }
.eco-story__tag { display: inline-block; font-size: 11px; font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase; padding: 4px 14px; border-radius: 999px; background: rgba(255,255,255,0.2); backdrop-filter: blur(8px); margin-bottom: 10px; }
.eco-story__name { font-family: 'Playfair Display', serif; font-size: 42px; font-weight: 800; margin-bottom: 4px; }
.eco-story__subtitle { font-size: 16px; opacity: 0.9; }
.eco-story__content { display: grid; grid-template-columns: 1.2fr 1fr; gap: 40px; padding: 40px; align-items: center; }
.eco-story__block--reverse .eco-story__content { direction: rtl; }
.eco-story__block--reverse .eco-story__content > * { direction: ltr; }
.eco-story__text { }
.eco-story__title { font-family: 'Playfair Display', serif; font-size: 28px; font-weight: 700; color: #0f172a; margin-bottom: 14px; }
.eco-story__text p { font-size: 15px; color: #475569; line-height: 1.85; margin-bottom: 20px; }
.eco-story__specs { display: flex; flex-wrap: wrap; gap: 20px; }
.eco-story__spec { display: flex; align-items: baseline; gap: 4px; font-size: 13px; color: #64748b; }
.eco-story__spec strong { font-family: 'Playfair Display', serif; font-size: 22px; font-weight: 700; color: #047857; margin-right: 4px; }
.eco-story__lens { border-radius: 14px; overflow: hidden; box-shadow: 0 12px 36px rgba(0,0,0,0.1); aspect-ratio: 1; }
.eco-story__lens svg { width: 100%; height: 100%; display: block; }
.eco-story__cta { display: inline-flex; align-items: center; gap: 6px; margin: 0 40px 40px; padding: 10px 24px; background: #047857; color: #fff; font-size: 14px; font-weight: 600; border-radius: 8px; text-decoration: none; transition: background 0.25s; align-self: flex-start; }
.eco-story__cta:hover { background: #064e3b; }
@media (max-width: 768px) {
    .eco-story__hero { height: 200px; }
    .eco-story__hero-overlay { padding: 20px; }
    .eco-story__name { font-size: 30px; }
    .eco-story__content { grid-template-columns: 1fr; gap: 24px; padding: 24px; }
    .eco-story__block--reverse .eco-story__content { direction: ltr; }
    .eco-story__cta { margin: 0 24px 24px; }
}

.eco-compliance__title { font-family: 'Playfair Display', serif; font-size: 24px; font-weight: 700; color: #0f172a; margin-bottom: 24px; }
.eco-compliance__list { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; list-style: none; padding: 0; margin: 0; }
.eco-compliance__list li { display: flex; align-items: center; gap: 12px; padding: 16px 20px; background: #fff; border: 1px solid #e2e8f0; border-radius: 10px; font-size: 14px; font-weight: 600; color: #475569; }
.eco-compliance__list li::before { content: '\2714'; color: #047857; font-weight: 700; }

.eco-resp { display: grid; grid-template-columns: repeat(2, 1fr); gap: 48px; align-items: center; }
.eco-resp__visual { border-radius: 14px; overflow: hidden; aspect-ratio: 4/3; background: linear-gradient(135deg, #064e3b, #047857, #10b981); position: relative; box-shadow: 0 20px 60px rgba(4,120,87,0.2); }
.eco-resp__visual::after { content: ''; position: absolute; inset: 20px; border: 2px solid rgba(255,255,255,0.3); border-radius: 12px; }
.eco-resp__text { display: flex; flex-direction: column; gap: 20px; }
.eco-resp__bar { display: flex; flex-direction: column; gap: 6px; }
.eco-resp__bar-label { font-size: 13px; font-weight: 600; color: #475569; display: flex; justify-content: space-between; }
.eco-resp__bar-track { height: 8px; background: #e2e8f0; border-radius: 999px; overflow: hidden; }
.eco-resp__bar-fill { height: 100%; background: linear-gradient(90deg, #047857, #10b981); border-radius: 999px; }

.eco-cta { text-align: center; padding: 80px 24px; background: linear-gradient(135deg, #064e3b 0%, #047857 100%); color: #fff; }
.eco-cta h2 { font-family: 'Playfair Display', serif; font-size: 36px; font-weight: 700; margin-bottom: 12px; }
.eco-cta p { font-size: 16px; opacity: 0.9; margin-bottom: 28px; }
.btn--white { background: #fff; color: #047857; padding: 14px 36px; font-size: 15px; font-weight: 600; border-radius: 10px; text-decoration: none; display: inline-block; transition: background 0.25s; }
.btn--white:hover { background: #f0fdf4; }


/* ============================================================
   TECHNOLOGY PAGE
   ============================================================ */
.tech-hero { padding: 160px 24px 100px; text-align: center; background: linear-gradient(135deg, #0B2545 0%, #1E6FD9 100%); color: #fff; position: relative; overflow: hidden; }
.tech-hero::before { content: ''; position: absolute; inset: 0; background: radial-gradient(circle at 20% 30%, rgba(255,255,255,0.1) 0%, transparent 50%), radial-gradient(circle at 80% 70%, rgba(77,163,255,0.18) 0%, transparent 45%); }
.tech-hero__inner { position: relative; z-index: 1; max-width: 900px; margin: 0 auto; }
.tech-hero__crumb { font-size: 13px; letter-spacing: 0.15em; text-transform: uppercase; opacity: 0.85; margin-bottom: 16px; }
.tech-hero__crumb a { color: rgba(255,255,255,0.8); text-decoration: none; }
.tech-hero__crumb a:hover { color: #fff; text-decoration: underline; }
.tech-hero__title { font-family: 'Playfair Display', serif; font-size: 56px; font-weight: 700; line-height: 1.15; margin-bottom: 20px; }
.tech-hero__sub { font-size: 17px; line-height: 1.7; opacity: 0.92; max-width: 640px; margin: 0 auto; }

.tech-params { padding: 80px 24px; }
.tech-params__inner { max-width: 1100px; margin: 0 auto; }
.tech-params__title { font-family: 'Playfair Display', serif; font-size: 36px; font-weight: 700; color: #0f172a; margin-bottom: 16px; }
.tech-params__desc { font-size: 16px; color: #475569; line-height: 1.8; max-width: 720px; margin-bottom: 48px; }
.tech-params__grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.tech-param { background: #fff; border: 1px solid #eef1f6; border-radius: 14px; padding: 28px 24px; transition: all 0.3s; }
.tech-param:hover { border-color: #1E6FD9; box-shadow: 0 12px 36px rgba(30,111,217,0.12); transform: translateY(-4px); }
.tech-param__icon { width: 48px; height: 48px; border-radius: 12px; margin-bottom: 16px; background: linear-gradient(135deg, #0B2545, #1E6FD9); display: grid; place-items: center; color: #fff; }
.tech-param__name { font-size: 14px; font-weight: 700; color: #475569; letter-spacing: 0.04em; text-transform: uppercase; margin-bottom: 8px; }
.tech-param__value { font-family: 'Playfair Display', serif; font-size: 36px; font-weight: 700; color: #0A3D91; line-height: 1; display: inline-block; }
.tech-param__unit { font-size: 16px; font-weight: 600; color: #64748b; margin-left: 4px; }
.tech-param__desc { font-size: 13px; color: #64748b; line-height: 1.7; margin-top: 10px; }

.tech-compare { padding: 80px 24px; background: #f8fafc; }
.tech-compare__inner { max-width: 1100px; margin: 0 auto; }
.tech-compare__title { font-family: 'Playfair Display', serif; font-size: 36px; font-weight: 700; color: #0f172a; margin-bottom: 16px; }
.tech-compare__desc { font-size: 16px; color: #475569; line-height: 1.8; max-width: 720px; margin-bottom: 40px; }
.tech-table { width: 100%; border-collapse: collapse; background: #fff; border-radius: 14px; overflow: hidden; box-shadow: 0 8px 32px rgba(10,61,145,0.08); }
.tech-table th, .tech-table td { padding: 16px 20px; text-align: left; border-bottom: 1px solid #f1f5f9; font-size: 14px; }
.tech-table th { background: #0A3D91; color: #fff; font-weight: 600; letter-spacing: 0.04em; }
.tech-table tr:last-child td { border-bottom: none; }
.tech-table tr:hover td { background: #f8fafc; }
.tag-best { display: inline-block; font-size: 11px; font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase; padding: 3px 10px; border-radius: 999px; color: #fff; background: linear-gradient(135deg, #0A3D91, #1E6FD9); }

.tech-coating { padding: 80px 24px; }
.tech-coating__inner { max-width: 1100px; margin: 0 auto; }
.tech-coating__title { font-family: 'Playfair Display', serif; font-size: 36px; font-weight: 700; color: #0f172a; margin-bottom: 16px; }
.tech-coating__desc { font-size: 16px; color: #475569; line-height: 1.8; max-width: 720px; margin-bottom: 48px; }
.tech-coating__grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.tech-coat { background: #fff; border: 1px solid #eef1f6; border-radius: 14px; overflow: hidden; transition: all 0.3s; }
.tech-coat:hover { border-color: #1E6FD9; box-shadow: 0 12px 36px rgba(30,111,217,0.12); transform: translateY(-4px); }
.tech-coat__head { display: flex; align-items: center; gap: 14px; padding: 24px; border-bottom: 1px solid #f1f5f9; }
.tech-coat__icon { width: 44px; height: 44px; border-radius: 10px; background: linear-gradient(135deg, #0B2545, #1E6FD9); display: grid; place-items: center; color: #fff; flex-shrink: 0; }
.tech-coat__title { font-family: 'Playfair Display', serif; font-size: 20px; font-weight: 700; color: #0f172a; flex: 1; }
.tech-coat__badge { font-size: 11px; font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase; padding: 3px 10px; border-radius: 999px; color: #1E6FD9; background: rgba(30,111,217,0.1); }
.tech-coat__body { padding: 24px; }
.tech-coat__body p { font-size: 14px; color: #64748b; line-height: 1.75; margin: 0 0 20px; }
.tech-coat__specs { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; padding-top: 16px; border-top: 1px solid #f1f5f9; }
.tech-coat__spec { display: flex; flex-direction: column; gap: 4px; }
.tech-coat__spec-label { font-size: 11px; font-weight: 600; letter-spacing: 0.06em; text-transform: uppercase; color: #94a3b8; }
.tech-coat__spec-value { font-size: 15px; font-weight: 600; color: #0f172a; }

.tech-flow { padding: 80px 24px; background: #0B2545; color: #fff; }
.tech-flow__inner { max-width: 1100px; margin: 0 auto; }
.tech-flow__title { font-family: 'Playfair Display', serif; font-size: 36px; font-weight: 700; text-align: center; margin-bottom: 48px; }
.tech-flow__steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; position: relative; }
.tech-flow__step { text-align: center; padding: 24px; background: rgba(255,255,255,0.06); border: 1px solid rgba(255,255,255,0.12); border-radius: 14px; transition: all 0.3s; }
.tech-flow__step:hover { background: rgba(255,255,255,0.1); transform: translateY(-4px); }
.tech-flow__dot { width: 44px; height: 44px; border-radius: 50%; margin: 0 auto 16px; background: linear-gradient(135deg, #1E6FD9, #4DA3FF); display: grid; place-items: center; font-family: 'Playfair Display', serif; font-weight: 700; color: #fff; font-size: 18px; }
.tech-flow__name { font-size: 16px; font-weight: 700; margin-bottom: 8px; }
.tech-flow__detail { font-size: 13px; line-height: 1.7; opacity: 0.8; }

.tech-cta { text-align: center; padding: 80px 24px; background: linear-gradient(135deg, #0B2545 0%, #1E6FD9 100%); color: #fff; }
.tech-cta h2 { font-family: 'Playfair Display', serif; font-size: 36px; font-weight: 700; margin-bottom: 12px; }
.tech-cta p { font-size: 16px; opacity: 0.9; margin-bottom: 28px; }
.tech-cta .btn--white { background: #fff; color: #0B2545; padding: 14px 36px; font-size: 15px; font-weight: 600; border-radius: 10px; text-decoration: none; display: inline-block; transition: background 0.25s; }
.tech-cta .btn--white:hover { background: #f1f5f9; }


/* ============================================================
   TECHNOLOGY — Mind Map Process Flow
   ============================================================ */
.tech-mm { padding: 80px 24px; background: linear-gradient(180deg, #0B2545 0%, #112E5C 100%); color: #fff; overflow-x: auto; }
.tech-mm__inner { max-width: 1280px; margin: 0 auto; min-width: 980px; }
.tech-mm__title { font-family: 'Playfair Display', serif; font-size: clamp(26px, 3vw, 36px); font-weight: 700; text-align: center; margin-bottom: 12px; color: #fff; }
.tech-mm__desc { text-align: center; font-size: 15px; color: rgba(255,255,255,0.72); margin: 0 0 48px; }

.tech-mm__canvas { display: grid; grid-template-columns: minmax(170px, 220px) 1fr minmax(280px, 360px); gap: 24px; align-items: center; }

/* ---------- 根节点 ---------- */
.tech-mm__root { display: flex; justify-content: center; align-items: center; position: relative; }
.tech-mm__root::after { content: ''; position: absolute; right: -24px; top: 50%; width: 24px; height: 2px; background: linear-gradient(90deg, #4DA3FF, rgba(77,163,255,0.3)); }
.tech-mm__root-core { background: linear-gradient(135deg, #1E6FD9, #4DA3FF); border-radius: 16px; padding: 24px 18px; text-align: center; box-shadow: 0 12px 36px rgba(30,111,217,0.45); border: 1px solid rgba(255,255,255,0.18); width: 100%; }
.tech-mm__root-num { width: 36px; height: 36px; border-radius: 50%; background: rgba(255,255,255,0.18); display: grid; place-items: center; font-family: 'Playfair Display', serif; font-weight: 700; font-size: 16px; margin: 0 auto 10px; }
.tech-mm__root-name { font-size: 18px; font-weight: 700; margin-bottom: 4px; }
.tech-mm__root-sub { font-size: 12px; color: rgba(255,255,255,0.78); line-height: 1.5; }

/* ---------- 材质分支 ---------- */
.tech-mm__branches { display: flex; flex-direction: column; gap: 14px; position: relative; }
.tech-mm__branches::before { content: ''; position: absolute; left: -24px; top: 12px; bottom: 12px; width: 2px; background: linear-gradient(180deg, rgba(77,163,255,0.6), rgba(77,163,255,0.2)); }
.tech-mm__row { display: grid; grid-template-columns: 130px 1fr; gap: 14px; align-items: center; position: relative; }
.tech-mm__row::before { content: ''; position: absolute; left: -24px; top: 50%; width: 18px; height: 2px; background: rgba(77,163,255,0.45); }
.tech-mm__mat { display: flex; flex-direction: column; gap: 2px; padding: 10px 14px; border-radius: 10px; border-left: 3px solid #4DA3FF; background: rgba(255,255,255,0.06); }
.tech-mm__mat-tag { font-size: 14px; font-weight: 700; color: #fff; }
.tech-mm__mat-note { font-size: 11px; color: rgba(255,255,255,0.65); }

/* 材质配色 */
.tech-mm__mat--cr39 { border-left-color: #4DA3FF; }
.tech-mm__mat--nylon { border-left-color: #67E8F9; }
.tech-mm__mat--pnylon { border-left-color: #A78BFA; }
.tech-mm__mat--pc { border-left-color: #FBBF24; }
.tech-mm__mat--tac { border-left-color: #34D399; }

.tech-mm__steps { display: flex; align-items: center; gap: 8px; flex-wrap: nowrap; }
.tech-mm__step { background: rgba(255,255,255,0.07); border: 1px solid rgba(255,255,255,0.14); border-radius: 10px; padding: 10px 14px; flex: 1; min-width: 0; transition: all 0.25s; }
.tech-mm__step:hover { background: rgba(77,163,255,0.15); border-color: rgba(77,163,255,0.5); transform: translateY(-2px); }
.tech-mm__step-name { font-size: 13px; font-weight: 600; color: #fff; margin-bottom: 3px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.tech-mm__step-sub { font-size: 11px; color: rgba(255,255,255,0.65); line-height: 1.5; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.tech-mm__step--skip { opacity: 0.35; border-style: dashed; }
.tech-mm__step--skip .tech-mm__step-name { color: rgba(255,255,255,0.5); }
.tech-mm__arrow { color: rgba(77,163,255,0.7); font-size: 20px; font-weight: 700; flex-shrink: 0; }

/* ---------- 汇聚到通用工序 ---------- */
.tech-mm__merge { display: flex; align-items: center; gap: 10px; position: relative; }
.tech-mm__merge::before { content: ''; position: absolute; left: -24px; top: 50%; width: 24px; height: 2px; background: linear-gradient(90deg, rgba(77,163,255,0.5), #4DA3FF); }
.tech-mm__step--common { background: linear-gradient(135deg, rgba(30,111,217,0.25), rgba(77,163,255,0.18)); border-color: rgba(77,163,255,0.45); }
.tech-mm__step--end { background: linear-gradient(135deg, #1E6FD9, #4DA3FF); border-color: #4DA3FF; box-shadow: 0 8px 24px rgba(77,163,255,0.35); }

/* ---------- 响应式 ---------- */
@media (max-width: 1024px) {
    .tech-mm__canvas { grid-template-columns: 140px 1fr 240px; gap: 16px; }
    .tech-mm__row { grid-template-columns: 110px 1fr; gap: 10px; }
    .tech-mm__step { padding: 8px 10px; }
}
@media (max-width: 768px) {
    .tech-mm { padding: 56px 18px; }
    .tech-mm__inner { min-width: 0; }
    .tech-mm__canvas { grid-template-columns: 1fr; gap: 18px; }
    .tech-mm__root::after, .tech-mm__branches::before, .tech-mm__row::before, .tech-mm__merge::before { display: none; }
    .tech-mm__root-core { max-width: 280px; margin: 0 auto; }
    .tech-mm__row { grid-template-columns: 1fr; gap: 8px; }
    .tech-mm__mat { flex-direction: row; gap: 8px; align-items: center; }
    .tech-mm__steps { flex-wrap: wrap; }
    .tech-mm__step { flex: 1 1 calc(50% - 8px); min-width: 0; }
    .tech-mm__arrow { display: none; }
    .tech-mm__merge { flex-wrap: wrap; justify-content: center; }
    .tech-mm__step--common, .tech-mm__step--end { flex: 1 1 calc(50% - 8px); }
}


/* ============================================================
   CONTACT PAGE
   ============================================================ */
.contact-grid { max-width: 1100px; margin: 0 auto; padding: 80px 24px 40px; display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.contact-card { background: #fff; border: 1px solid #eef1f6; border-radius: 14px; padding: 32px 24px; text-align: center; transition: all 0.3s; }
.contact-card:hover { border-color: #1E6FD9; box-shadow: 0 12px 36px rgba(30,111,217,0.12); transform: translateY(-4px); }
.contact-card__icon { width: 52px; height: 52px; border-radius: 12px; margin: 0 auto 18px; background: linear-gradient(135deg, #0A3D91, #1E6FD9); display: grid; place-items: center; color: #fff; }
.contact-card__title { font-size: 14px; font-weight: 700; color: #475569; letter-spacing: 0.06em; text-transform: uppercase; margin-bottom: 8px; }
.contact-card__value { font-family: 'Playfair Display', serif; font-size: 18px; font-weight: 700; color: #0f172a; }
.contact-card__value a { color: inherit; text-decoration: none; }
.contact-card__value a:hover { color: #1E6FD9; }
.contact-card--ins { border-color: transparent; background: linear-gradient(135deg, #f58529 0%, #dd2a7b 45%, #8134af 100%); color: #fff; }
.contact-card--ins .contact-card__icon { background: rgba(255,255,255,0.22); }
.contact-card--ins .contact-card__title, .contact-card--ins .contact-card__value, .contact-card--ins .contact-card__value a { color: #fff; }
.contact-card--wa { border-color: #25D366; background: #f0fdf4; }
.contact-card--wa .contact-card__icon { background: linear-gradient(135deg, #25D366, #128C7E); }

/* ---- 办公室地址卡片 ---- */
.offices-section { max-width: 1100px; margin: 0 auto; padding: 16px 24px 64px; }
.offices-section__title { font-family: 'Playfair Display', serif; font-size: 30px; font-weight: 700; color: #0f172a; margin-bottom: 8px; text-align: center; }
.offices-section__desc { font-size: 14px; color: #64748b; text-align: center; margin-bottom: 36px; line-height: 1.7; }
.offices-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.office-card { background: #fff; border: 1px solid #eef1f6; border-radius: 14px; padding: 28px 24px; transition: all 0.3s; position: relative; }
.office-card:hover { border-color: #1E6FD9; box-shadow: 0 12px 36px rgba(30,111,217,0.12); transform: translateY(-4px); }
.office-card--hq { background: linear-gradient(135deg, #0A3D91 0%, #1E6FD9 100%); color: #fff; border: none; }
.office-card--hq:hover { box-shadow: 0 16px 48px rgba(10,61,145,0.28); }
.office-card__badge { display: inline-block; font-size: 11px; font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase; padding: 4px 12px; border-radius: 999px; background: rgba(30,111,217,0.1); color: #1E6FD9; margin-bottom: 14px; }
.office-card--hq .office-card__badge { background: rgba(255,255,255,0.22); color: #fff; }
.office-card__city { font-family: 'Playfair Display', serif; font-size: 22px; font-weight: 700; margin-bottom: 4px; }
.office-card__role { font-size: 12px; color: #94a3b8; letter-spacing: 0.06em; text-transform: uppercase; margin-bottom: 18px; }
.office-card--hq .office-card__role { color: rgba(255,255,255,0.85); }
.office-card__addr { font-size: 14px; line-height: 1.7; margin-bottom: 12px; }
.office-card__contact { font-size: 13px; line-height: 1.7; color: #64748b; }
.office-card__contact a { color: inherit; text-decoration: none; }
.office-card__contact a:hover { color: #1E6FD9; }
.office-card--hq .office-card__contact { color: rgba(255,255,255,0.92); }
.office-card__contact-row { display: flex; align-items: flex-start; gap: 8px; margin-top: 6px; }
.office-card__contact-row svg { flex-shrink: 0; margin-top: 3px; }

.main-grid { max-width: 1100px; margin: 0 auto; padding: 40px 24px 80px; display: grid; grid-template-columns: 2fr 1fr; gap: 32px; align-items: start; }
.form-panel { background: #fff; border: 1px solid #eef1f6; border-radius: 14px; padding: 36px 32px; box-shadow: 0 8px 32px rgba(10,61,145,0.06); }
.sample-form { display: flex; flex-direction: column; gap: 20px; }
.sample-form__field { display: flex; flex-direction: column; gap: 8px; }
.sample-form__field label { font-size: 13px; font-weight: 600; color: #475569; letter-spacing: 0.02em; }
.sample-form__input { padding: 12px 16px; border: 1px solid #e2e8f0; border-radius: 10px; font-size: 14px; font-family: 'Inter', sans-serif; color: #0f172a; background: #fff; transition: border-color 0.25s, box-shadow 0.25s; }
.sample-form__input:focus { outline: none; border-color: #1E6FD9; box-shadow: 0 0 0 3px rgba(30,111,217,0.12); }
.sample-form__textarea { padding: 12px 16px; border: 1px solid #e2e8f0; border-radius: 10px; font-size: 14px; font-family: 'Inter', sans-serif; color: #0f172a; background: #fff; min-height: 120px; resize: vertical; transition: border-color 0.25s, box-shadow 0.25s; }
.sample-form__textarea:focus { outline: none; border-color: #1E6FD9; box-shadow: 0 0 0 3px rgba(30,111,217,0.12); }
.sample-form__submit { padding: 14px 32px; background: #0A3D91; color: #fff; font-size: 15px; font-weight: 600; border: none; border-radius: 10px; cursor: pointer; transition: background 0.25s; align-self: flex-start; }
.sample-form__submit:hover { background: #1E6FD9; }
.sample-form__notice { font-size: 12px; color: #94a3b8; line-height: 1.6; margin-top: 4px; }
.sample-form__my-link { margin-top: 8px; font-size: 13px; }
.sample-form__my-link a { color: #1E6FD9; font-weight: 600; text-decoration: none; }
.sample-form__my-link a:hover { text-decoration: underline; }

.side-panel { display: flex; flex-direction: column; gap: 20px; }
.side-card { background: #fff; border: 1px solid #eef1f6; border-radius: 14px; padding: 24px; }
.side-card h3 { font-family: 'Playfair Display', serif; font-size: 18px; font-weight: 700; color: #0f172a; margin-bottom: 16px; }
.side-list { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 14px; }
.side-list li { display: flex; gap: 14px; align-items: flex-start; }
.side-list__icon { width: 36px; height: 36px; border-radius: 8px; background: rgba(30,111,217,0.1); display: grid; place-items: center; color: #0A3D91; flex-shrink: 0; }
.side-list__body { display: flex; flex-direction: column; gap: 2px; flex: 1; min-width: 0; }
.side-list__label { font-size: 11px; font-weight: 600; letter-spacing: 0.06em; text-transform: uppercase; color: #94a3b8; }
.side-list__value { font-size: 14px; font-weight: 600; color: #0f172a; word-break: break-word; }


/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 960px) {
    /* Collection */
    .col-layout { grid-template-columns: 1fr; gap: 32px; padding: 56px 20px; }
    .col-timeline { position: static; border-right: none; border-bottom: 1px solid #eef1f6; padding-bottom: 24px; padding-right: 0; }
    /* Sustainability */
    .eco-concept { grid-template-columns: 1fr; }
    .eco-materials { grid-template-columns: 1fr; }
    .eco-resp { grid-template-columns: 1fr; gap: 32px; }
    .eco-compliance__list { grid-template-columns: 1fr; }
    /* Technology */
    .tech-params__grid { grid-template-columns: repeat(3, 1fr); }
    .tech-coating__grid { grid-template-columns: 1fr; }
    .tech-flow__steps { grid-template-columns: repeat(2, 1fr); }
    /* Contact */
    .contact-grid { grid-template-columns: 1fr; }
    .main-grid { grid-template-columns: 1fr; gap: 24px; }
    .offices-grid { grid-template-columns: 1fr; }
    .col-series__meta { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 640px) {
    /* Heroes */
    .page-hero, .col-hero, .eco-hero, .tech-hero { padding: 110px 18px 60px; }
    .page-hero__title, .col-hero__title, .eco-hero__title, .tech-hero__title { font-size: 34px; }
    .page-hero__sub, .col-hero__sub, .eco-hero__sub, .tech-hero__sub { font-size: 15px; }
    /* Sections */
    .eco-section, .tech-params, .tech-compare, .tech-coating, .tech-flow, .contact-grid, .main-grid { padding-left: 18px; padding-right: 18px; }
    .eco-section, .tech-params, .tech-compare, .tech-coating, .tech-flow { padding-top: 56px; padding-bottom: 56px; }
    .eco-section__title, .tech-params__title, .tech-compare__title, .tech-coating__title, .tech-flow__title { font-size: 26px; }
    .eco-cta, .tech-cta { padding: 56px 18px; }
    .eco-cta h2, .tech-cta h2 { font-size: 26px; }
    /* Stats */
    .eco-stats__inner { grid-template-columns: repeat(2, 1fr); }
    .eco-stats__num { font-size: 36px; }
    /* Collection groups */
    .col-group__title-en { font-size: 22px; }
    .col-series__name { font-size: 18px; }
    .col-series__header { flex-direction: column; align-items: flex-start; gap: 12px; padding: 16px 18px; }
    .col-series__visual { height: 160px; }
    .col-series__strips { grid-template-columns: 1fr; }
    .col-series__strip { border-right: none; border-bottom: 1px solid #f1f5f9; }
    .col-series__meta { grid-template-columns: 1fr; padding: 16px 18px; }
    .col-series__story { padding: 18px; font-size: 14px; }
    .col-series__cta { margin: 0 18px 18px; }
    /* Sustainability */
    .eco-material__specs { grid-template-columns: 1fr; }
    /* Technology */
    .tech-params__grid { grid-template-columns: 1fr; }
    .tech-flow__steps { grid-template-columns: 1fr; }
    .tech-table { font-size: 12px; }
    .tech-table th, .tech-table td { padding: 12px 12px; }
    .tech-coat__specs { grid-template-columns: 1fr; }
    /* Contact */
    .form-panel { padding: 24px 20px; }
    .contact-card { padding: 24px 18px; }
    .faq-grid { flex-direction: column; }
    .faq-item { width: 100%; }
}

/* =========================================================
   FAQ 常见问题 — 卡片式布局
   ========================================================= */
.faq { max-width: 900px; margin: 0 auto; padding: 64px 24px; }
.faq h2 { font-family: 'Playfair Display', serif; font-size: 32px; font-weight: 700; color: #0f172a; text-align: center; margin-bottom: 40px; }
.faq-grid { display: flex; flex-wrap: wrap; gap: 20px; }
.faq-item { background: #fff; border: 1px solid #e2e8f0; border-radius: 12px; padding: 24px 28px; transition: box-shadow 0.2s, border-color 0.2s; width: calc(33.333% - 14px); box-sizing: border-box; }
.faq-item:hover { box-shadow: 0 8px 30px rgba(10, 61, 145, 0.08); border-color: #c7d2fe; }
.faq-item__q { font-size: 16px; font-weight: 600; color: #0A3D91; margin-bottom: 10px; padding-left: 28px; position: relative; line-height: 1.5; }
.faq-item__q::before { content: 'Q'; position: absolute; left: 0; top: -1px; width: 22px; height: 22px; background: #0A3D91; color: #fff; border-radius: 6px; font-size: 12px; font-weight: 700; display: flex; align-items: center; justify-content: center; font-family: 'Inter', sans-serif; }
.faq-item__a { font-size: 14px; color: #475569; line-height: 1.8; padding-left: 28px; position: relative; }
.faq-item__a::before { content: 'A'; position: absolute; left: 0; top: 2px; width: 22px; height: 22px; background: #e2e8f0; color: #64748b; border-radius: 6px; font-size: 12px; font-weight: 700; display: flex; align-items: center; justify-content: center; font-family: 'Inter', sans-serif; }

/* =========================================================
   DOWNLOAD PAGE — 下载中心
   ========================================================= */
.dl-section { padding: 80px 24px; }
.dl-section__inner { max-width: 1100px; margin: 0 auto; }
.dl-section__title { font-family: 'Playfair Display', serif; font-size: 32px; font-weight: 700; color: #0f172a; text-align: center; margin-bottom: 12px; }
.dl-section__desc { font-size: 15px; color: #64748b; text-align: center; margin-bottom: 48px; line-height: 1.7; }
.dl-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.dl-card { background: #fff; border: 1px solid #eef1f6; border-radius: 14px; overflow: hidden; transition: all 0.3s; display: flex; flex-direction: column; }
.dl-card:hover { border-color: #1E6FD9; box-shadow: 0 16px 48px rgba(30,111,217,0.12); transform: translateY(-3px); }
.dl-card__visual { height: 200px; display: flex; align-items: center; justify-content: center; color: #fff; }
.dl-card__visual--catalog { background: linear-gradient(135deg, #0A3D91, #1E6FD9); }
.dl-card__visual--spec { background: linear-gradient(135deg, #1E6FD9, #4DA3FF); }
.dl-card__visual--cert { background: linear-gradient(135deg, #047857, #10b981); }
.dl-card__body { padding: 28px 24px; flex: 1; display: flex; flex-direction: column; }
.dl-card__tag { display: inline-block; font-size: 11px; font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase; color: #1E6FD9; background: rgba(30,111,217,0.08); padding: 4px 10px; border-radius: 999px; margin-bottom: 12px; align-self: flex-start; }
.dl-card__title { font-family: 'Playfair Display', serif; font-size: 20px; font-weight: 700; color: #0f172a; margin-bottom: 10px; line-height: 1.3; }
.dl-card__desc { font-size: 14px; color: #64748b; line-height: 1.7; margin-bottom: 16px; flex: 1; }
.dl-card__meta { display: flex; gap: 12px; margin-bottom: 20px; font-size: 12px; color: #94a3b8; }
.dl-card__format { background: #e2e8f0; color: #475569; padding: 3px 8px; border-radius: 4px; font-weight: 700; }
.dl-card__size { padding: 3px 0; }
.dl-card__date { padding: 3px 0; }
.dl-card__btn { display: inline-flex; align-items: center; justify-content: center; gap: 6px; padding: 12px 24px; background: #0A3D91; color: #fff; font-size: 14px; font-weight: 600; border: none; border-radius: 8px; cursor: pointer; transition: all 0.25s; text-decoration: none; font-family: inherit; }
.dl-card__btn:hover { background: #1E6FD9; transform: translateY(-1px); box-shadow: 0 4px 16px rgba(30,111,217,0.3); }
.dl-card__btn::after { content: '↓'; font-size: 16px; }

@media (max-width: 960px) {
    .dl-grid { grid-template-columns: 1fr; max-width: 480px; margin: 0 auto; }
}
@media (max-width: 640px) {
    .dl-section { padding: 56px 18px; }
    .dl-section__title { font-size: 26px; }
    .dl-card__visual { height: 160px; }
}