/* ============================================================
   博瑞特官网 v3 · pages.css
   页面级区块样式
   ============================================================ */

/* ---------- Hero 首屏 ---------- */
.hero {
  background: var(--grad-hero);
  color: #cfe0ec;
  position: relative;
  overflow: hidden;
}
.hero::before {
  content: ""; position: absolute; inset: 0;
  background:
    radial-gradient(620px 360px at 82% 12%, rgba(31, 195, 207, .20), transparent 62%),
    radial-gradient(700px 420px at 8% 96%, rgba(13, 51, 88, .85), transparent 60%);
  pointer-events: none;
}
.hero::after {
  content: ""; position: absolute; inset: 0; opacity: .5; pointer-events: none;
  background-image:
    linear-gradient(rgba(255,255,255,.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.04) 1px, transparent 1px);
  background-size: 46px 46px;
  mask-image: linear-gradient(to bottom, rgba(0,0,0,.9), transparent 82%);
}
.hero__grid {
  position: relative; z-index: 1;
  display: grid; grid-template-columns: minmax(0, 1.35fr) minmax(0, 1fr);
  gap: var(--sp-7);
  align-items: center;
  padding-block: clamp(3rem, 7vw, 5.5rem);
}
.hero__eyebrow { color: var(--ice-300); }
.hero__eyebrow::after { background: var(--ice-400); }
.hero h1 { color: #fff; }
.hero h1 em { color: var(--ice-300); }
.hero__lead { font-size: var(--fs-18); color: #b3ccdd; max-width: 56ch; margin-top: var(--sp-4); }
.hero__cta { margin-top: var(--sp-5); }
.hero__facts {
  display: flex; flex-wrap: wrap; gap: 0 2.6rem;
  margin-top: var(--sp-6); padding-top: var(--sp-4);
  border-top: 1px solid rgba(255, 255, 255, .16);
}
.hero__fact { display: grid; gap: .1rem; }
.hero__fact dt { font-size: var(--fs-13); color: #8fb0c4; font-weight: 600; }
.hero__fact dd { margin: 0; }
.hero__fact strong { font-size: var(--fs-24); color: #fff; font-variant-numeric: tabular-nums; }

/* Hero 右侧温区面板 */
.zone-panel {
  background: rgba(255, 255, 255, .07);
  border: 1px solid rgba(255, 255, 255, .18);
  border-radius: var(--r-lg);
  padding: var(--sp-5);
  backdrop-filter: blur(6px);
  box-shadow: 0 24px 60px rgba(2, 10, 20, .45);
}
.zone-panel__head {
  display: flex; align-items: center; justify-content: space-between; gap: var(--sp-3);
  margin-bottom: var(--sp-4);
}
.zone-panel__title { display: inline-flex; align-items: center; gap: .6rem; margin: 0; color: #fff; font-size: var(--fs-16); font-weight: 700; }
.zone-panel__title svg { color: var(--ice-300); width: 1.3em; height: 1.3em; }
.pill {
  display: inline-block; padding: .18rem .75rem; border-radius: 999px;
  background: rgba(31, 195, 207, .18); color: var(--ice-300);
  border: 1px solid rgba(31, 195, 207, .4);
  font-size: var(--fs-12); font-weight: 700; letter-spacing: .06em; white-space: nowrap;
}
.zone-list { display: grid; gap: var(--sp-3); }
.zone-item { display: grid; grid-template-columns: 1fr auto; gap: .1rem 1rem; align-items: baseline; }
.zone-item__name { font-size: var(--fs-15); color: #d7e7f2; }
.zone-item__val { font-weight: 800; color: var(--ice-300); font-variant-numeric: tabular-nums; white-space: nowrap; grid-column: 2; grid-row: 1 / span 2; align-self: center; }
.temp-bar { grid-column: 1 / -1; height: 5px; border-radius: 4px; background: rgba(255, 255, 255, .12); overflow: hidden; margin-top: .2rem; }
.temp-bar i { display: block; height: 100%; width: 0; border-radius: 4px; background: linear-gradient(90deg, var(--ice-400), var(--ice-300)); transition: width .8s ease; }
.zone-panel__foot {
  display: flex; flex-wrap: wrap; gap: .3rem 1rem;
  margin-top: var(--sp-4); padding-top: var(--sp-3);
  border-top: 1px solid rgba(255, 255, 255, .14);
  font-size: var(--fs-13); color: #9db9cc;
}
@media (max-width: 900px) {
  .hero__grid { grid-template-columns: 1fr; }
}

/* ---------- 产品卡 ---------- */
.product-card { padding: 0; overflow: hidden; display: flex; flex-direction: column; }
.product-card__visual {
  position: relative; display: flex; align-items: center; justify-content: center;
  height: 128px; margin: 0;
  background:
    radial-gradient(220px 120px at 70% 0%, rgba(31, 195, 207, .22), transparent 70%),
    linear-gradient(135deg, var(--navy-900), var(--navy-700));
  color: rgba(255, 255, 255, .9);
}
.product-card__visual svg { width: 46px; height: 46px; color: var(--ice-300); }
.product-card__temp {
  position: absolute; left: var(--sp-4); top: var(--sp-4);
  font-size: var(--fs-13); font-weight: 800; letter-spacing: .04em;
  color: var(--ice-300); font-variant-numeric: tabular-nums;
}
.product-card__badge {
  position: absolute; right: var(--sp-3); top: var(--sp-3);
  background: rgba(4, 15, 28, .35); color: #cfe0ec;
  font-size: var(--fs-12); font-weight: 700;
  padding: .2rem .7rem; border-radius: 999px; border: 1px solid rgba(255, 255, 255, .2);
}
.product-card__body { display: flex; flex-direction: column; gap: .3rem; padding: var(--sp-4) var(--sp-5) var(--sp-5); flex: 1; }
.product-card__body p { color: var(--slate-600); font-size: var(--fs-15); margin: 0 0 .4rem; }
.product-card__specs { display: grid; gap: .35rem; margin: var(--sp-2) 0 var(--sp-4); }
.product-card__specs li { font-size: var(--fs-14); color: var(--slate-600); display: flex; gap: .4rem; }
.product-card__specs b { color: var(--navy-800); min-width: 6.4em; font-weight: 700; }
.product-card__specs span { flex: 1; }
.product-card__link {
  margin-top: auto; display: inline-flex; align-items: center; gap: .4rem;
  font-weight: 700; font-size: var(--fs-15); color: var(--ice-600);
  padding-block: .4rem;
}
.product-card__link:hover { color: var(--navy-700); }
.product-card__link svg { transition: transform .16s ease; width: 1em; height: 1em; }
.product-card__link:hover svg { transform: translateX(3px); }

/* 优势卡（编号） */
.adv-card { overflow: hidden; }
.adv-card__num {
  position: absolute; right: var(--sp-4); top: var(--sp-2);
  font-size: 3.4rem; font-weight: 800; line-height: 1;
  color: rgba(10, 37, 64, .07); font-variant-numeric: tabular-nums;
}

/* 应用方案 zone 卡（横条样式） */
.zone-card { display: flex; gap: var(--sp-4); align-items: flex-start; padding: var(--sp-4) var(--sp-5); }
.zone-card__temp {
  flex: none; display: inline-flex; flex-direction: column; align-items: center; justify-content: center;
  width: 84px; height: 84px; border-radius: var(--r-md);
  background: linear-gradient(145deg, var(--navy-900), var(--navy-700));
  color: var(--ice-300); font-weight: 800; font-size: var(--fs-15); line-height: 1.15;
  text-align: center; font-variant-numeric: tabular-nums;
}
.zone-card .card__title { margin-bottom: .4em; }
.zone-card ul { margin-top: var(--sp-3); display: grid; gap: .3rem; }
.zone-card ul li { position: relative; padding-left: 1.2rem; font-size: var(--fs-14); color: var(--slate-600); }
.zone-card ul li::before { content: ""; position: absolute; left: 0; top: .62em; width: 7px; height: 7px; border-radius: 2px; background: var(--ice-400); }

/* ---------- 流程 ---------- */
.process__list { display: grid; grid-template-columns: repeat(6, 1fr); gap: var(--sp-3); counter-reset: step; }
.process__item {
  position: relative; background: #fff; border: 1px solid var(--line);
  border-radius: var(--r-md); padding: var(--sp-4);
  box-shadow: var(--shadow-1);
}
.process__item::before {
  counter-increment: step; content: counter(step, decimal-leading-zero);
  display: block; font-size: var(--fs-13); font-weight: 800; letter-spacing: .08em;
  color: var(--ice-500); margin-bottom: var(--sp-2);
}
.process__item h3 { font-size: var(--fs-16); margin-bottom: .4em; }
.process__item p { font-size: var(--fs-14); color: var(--slate-600); margin: 0; }
.process__item--flag::after {
  content: ""; position: absolute; left: var(--sp-4); top: 100%;
  width: 0; height: 0; border-style: solid;
  border-width: 10px 8px 0 0; border-color: var(--line) transparent transparent transparent;
}
@media (max-width: 1000px) { .process__list { grid-template-columns: repeat(3, 1fr); } }
@media (max-width: 640px) { .process__list { grid-template-columns: 1fr; } }

/* ---------- 案例卡 ---------- */
.case-card { padding: 0; overflow: hidden; }
.case-card__visual {
  position: relative; display: flex; align-items: center; justify-content: center;
  height: 110px;
  background: linear-gradient(120deg, var(--navy-900), var(--navy-700) 70%, var(--navy-600));
  color: var(--ice-300);
}
.case-card__visual svg { width: 40px; height: 40px; opacity: .95; }
.case-card__badge {
  position: absolute; left: var(--sp-3); top: var(--sp-3);
  background: var(--ice-500); color: var(--navy-950);
  font-size: var(--fs-12); font-weight: 800; padding: .15rem .7rem; border-radius: 999px;
}
.case-card__body { padding: var(--sp-4) var(--sp-5) var(--sp-5); }
.case-card__body h3 { font-size: var(--fs-17); }
.case-card__body > p { color: var(--slate-600); font-size: var(--fs-14); }
.case-card__metrics { display: flex; flex-wrap: wrap; gap: var(--sp-3); margin-top: var(--sp-3); }
.case-card__metrics li { flex: 1; min-width: 110px; }
.case-card__metrics div {
  border: 1px solid var(--line); border-left: 3px solid var(--ice-400);
  border-radius: var(--r-sm); padding: .5rem .8rem;
  font-size: var(--fs-13); color: var(--slate-600); background: var(--bg-soft);
}
.case-card__metrics b { display: block; color: var(--navy-800); font-size: var(--fs-15); }

/* case-feature 首页大案例 */
.case-feature {
  display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.3fr); gap: var(--sp-6);
  align-items: center;
  background: var(--navy-900);
  border-radius: var(--r-lg);
  overflow: hidden;
  box-shadow: var(--shadow-2);
}
.case-feature__visual {
  position: relative; min-height: 320px; display: flex; align-items: center; justify-content: center;
  background: linear-gradient(150deg, var(--navy-800), var(--navy-600));
  color: var(--ice-300);
}
.case-feature__visual svg { width: 110px; height: 110px; opacity: .92; }
.case-feature__grid {
  position: absolute; inset: 0;
  background-image: linear-gradient(rgba(255,255,255,.06) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.06) 1px, transparent 1px);
  background-size: 34px 34px;
  mask-image: radial-gradient(circle at 50% 50%, rgba(0,0,0,1), transparent 78%);
}
.case-feature > div:last-child { padding: var(--sp-6) var(--sp-6) var(--sp-6) 0; color: #cfe0ec; }
.case-feature h3 { color: #fff; font-size: clamp(1.25rem, 2.2vw, 1.7rem); }
.case-feature .tag { background: rgba(255,255,255,.1); }
.case-feature .card__text { color: #b3ccdd; font-size: var(--fs-16) !important; }
.case-feature .check-list li { color: #b3ccdd; }
@media (max-width: 900px) {
  .case-feature { grid-template-columns: 1fr; }
  .case-feature__visual { min-height: 220px; }
  .case-feature > div:last-child { padding: var(--sp-5); }
}

/* ---------- 页面头（内页） ---------- */
.page-head {
  background: var(--grad-hero); color: #cfe0ec; position: relative; overflow: hidden;
  padding-block: clamp(2.4rem, 5vw, 4rem);
}
.page-head::before {
  content: ""; position: absolute; inset: 0;
  background: radial-gradient(560px 300px at 88% 20%, rgba(31, 195, 207, .18), transparent 62%);
}
.page-head .container { position: relative; }
.page-head h1 { color: #fff; margin-bottom: .3em; }
.page-head p { max-width: 66ch; color: #b3ccdd; font-size: var(--fs-17); margin: 0; }

.breadcrumb { background: #fff; border-bottom: 1px solid var(--line); }
.breadcrumb__list { display: flex; flex-wrap: wrap; gap: .4rem .8rem; padding-block: .8rem; font-size: var(--fs-14); }
.breadcrumb__list li { display: inline-flex; align-items: center; gap: .8rem; }
.breadcrumb__list li + li::before { content: "/"; color: var(--line); font-weight: 700; }
.breadcrumb a { color: var(--slate-500); }
.breadcrumb a:hover { color: var(--ice-600); }
.breadcrumb [aria-current="page"] { color: var(--navy-800); font-weight: 600; }

/* ---------- 深色带内两栏（标语 + 数据） ---------- */
.section--band .stats { padding-block: var(--sp-8); }
.band-grid { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: var(--sp-4); padding-block: var(--sp-7); }
.band-copy { max-width: 660px; }
.band-copy h2 { margin-bottom: .35em; }
.band-copy p { margin: 0; color: #a9c4d6; }
.band-stats { display: grid; grid-template-columns: repeat(3, auto); gap: var(--sp-5); margin: 0; }
.band-stats dt { font-size: var(--fs-13); color: #8fb0c4; font-weight: 600; }
.band-stats dd { margin: 0; font-size: var(--fs-32); font-weight: 800; color: #fff; font-variant-numeric: tabular-nums; }
@media (max-width: 780px) {
  .band-grid { gap: var(--sp-5); padding-block: var(--sp-6); }
  .band-stats { grid-template-columns: repeat(3, minmax(0, 1fr)); gap: var(--sp-3); width: 100%; }
  .band-stats dd { font-size: var(--fs-24); }
}

/* ---------- 联系方式条目（内页卡片版） ---------- */
.contact-card-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); gap: var(--sp-4); }

/* ---------- 时间线 ---------- */
.timeline { position: relative; padding-left: var(--sp-6); }
.timeline::before {
  content: ""; position: absolute; left: 6px; top: 6px; bottom: 6px; width: 2px;
  background: linear-gradient(var(--ice-400), var(--ice-100));
}
.timeline li { position: relative; padding: 0 0 var(--sp-5) var(--sp-4); }
.timeline li::before {
  content: ""; position: absolute; left: calc(-1 * var(--sp-6) + 6px - 6px); top: 6px;
  width: 14px; height: 14px; border-radius: 50%;
  background: #fff; border: 4px solid var(--ice-500);
  transform: translateX(-50%);
}
.timeline li:last-child { padding-bottom: 0; }
.timeline time {
  display: inline-block; margin-bottom: .3rem;
  background: var(--ice-100); color: var(--navy-800);
  font-size: var(--fs-13); font-weight: 800; letter-spacing: .05em;
  padding: .15rem .8rem; border-radius: 999px;
}
.timeline h3 { font-size: var(--fs-18); margin-bottom: .25em; }
.timeline p { color: var(--slate-600); font-size: var(--fs-15); margin: 0; }

/* ---------- 联系页布局 ---------- */
.contact-grid { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: var(--sp-7); align-items: start; }
@media (max-width: 900px) { .contact-grid { grid-template-columns: 1fr; } }

.quote-card {
  background: #fff; border: 1px solid var(--line); border-top: 4px solid var(--ice-400);
  border-radius: var(--r-md); padding: var(--sp-5) var(--sp-6) var(--sp-6);
  box-shadow: var(--shadow-2);
}
.quote-card h3 { font-size: var(--fs-24); }
.quote-card > p { color: var(--slate-600); font-size: var(--fs-14); margin-bottom: var(--sp-4); }

.map-placeholder {
  display: flex; align-items: center; gap: var(--sp-4);
  border: 1px dashed var(--line); border-radius: var(--r-md);
  background: var(--bg-soft); padding: var(--sp-5);
  color: var(--slate-500);
}
.map-placeholder svg { width: 40px; height: 40px; color: var(--ice-400); flex: none; }

/* ---------- FAQ ---------- */
.faq { display: grid; gap: var(--sp-3); }
.faq details {
  border: 1px solid var(--line); border-radius: var(--r-sm);
  background: #fff; overflow: hidden; transition: box-shadow .18s ease, border-color .18s ease;
}
.faq details[open] { border-color: var(--ice-300); box-shadow: var(--shadow-1); }
.faq summary {
  cursor: pointer; list-style: none; display: flex; justify-content: space-between; align-items: center; gap: var(--sp-3);
  padding: 1.05rem 1.4rem; font-weight: 700; font-size: var(--fs-16); color: var(--ink);
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after {
  content: "+"; flex: none; display: inline-flex; align-items: center; justify-content: center;
  width: 28px; height: 28px; border-radius: 50%;
  background: var(--ice-100); color: var(--navy-800);
  font-size: 1.25rem; font-weight: 700; line-height: 1; transition: transform .2s ease;
}
.faq details[open] summary::after { transform: rotate(45deg); background: var(--ice-500); color: #fff; }
.faq__answer { padding: 0 1.4rem 1.2rem; color: var(--slate-600); font-size: var(--fs-15); }
.faq__answer p { margin: 0; }

/* ---------- 文本辅助 ---------- */
.text-note { font-size: var(--fs-13); color: var(--slate-500); }
.mt-2 { margin-top: var(--sp-2); } .mt-3 { margin-top: var(--sp-3); } .mt-4 { margin-top: var(--sp-4); }
.mt-5 { margin-top: var(--sp-5); } .mt-6 { margin-top: var(--sp-6); } .mt-7 { margin-top: var(--sp-7); }
.center { text-align: center; }