/* ============================================================
   杭州宝烁流体控制有限公司 - 官网样式
   ============================================================ */

/* ---------- 本地字体（无需外部字体服务） ---------- */
@font-face {
  font-family: "IBM Plex Mono";
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url("../fonts/ibm-plex-mono-latin-400-normal.woff2") format("woff2");
}
@font-face {
  font-family: "IBM Plex Mono";
  font-style: normal;
  font-weight: 500;
  font-display: swap;
  src: url("../fonts/ibm-plex-mono-latin-500-normal.woff2") format("woff2");
}
@font-face {
  font-family: "IBM Plex Mono";
  font-style: normal;
  font-weight: 600;
  font-display: swap;
  src: url("../fonts/ibm-plex-mono-latin-600-normal.woff2") format("woff2");
}

/* ---------- 设计变量 ---------- */
:root {
  --paper: #F2F5F7;        /* 工程纸面底色 */
  --paper-2: #E8EDF1;      /* 纸面加深 */
  --ink: #10202E;          /* 深蓝黑 · 标题正文骨架 */
  --steel: #5C6B78;        /* 钢灰 · 次级文字 */
  --line: #C9D3DB;         /* 分隔线 */
  --brand: #14539A;        /* 品牌蓝（样册蓝） */
  --brand-deep: #0C3A70;   /* 品牌深蓝 */
  --accent: #1C6E58;       /* 墨绿 · 来自产品线圈 */
  --amber: #E09A2D;        /* 安全黄 · 来自车间设备 */
  --white: #FFFFFF;
  --font-body: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-mono: "IBM Plex Mono", "SFMono-Regular", Consolas, monospace;
  --shadow-card: 0 2px 10px rgba(16, 32, 46, .07), 0 12px 32px rgba(16, 32, 46, .08);
}

/* ---------- 基础 ---------- */
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-body);
  color: var(--ink);
  background: var(--paper);
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }

::selection { background: var(--brand); color: #fff; }

.wrap { width: min(1180px, 92%); margin: 0 auto; }

/* ---------- 通用文字 ---------- */
.mono { font-family: var(--font-mono); }
.num { font-family: var(--font-mono); font-variant-numeric: tabular-nums; }

/* 区块标题：图纸标注风 */
.sec { padding: 96px 0; }
.sec-head { margin-bottom: 48px; }
.sec-tag {
  display: inline-flex; align-items: center; gap: 10px;
  font-family: var(--font-mono); font-size: 13px; letter-spacing: .18em;
  color: var(--accent); margin-bottom: 14px; text-transform: uppercase;
}
.sec-tag::before {
  content: ""; width: 26px; height: 1px; background: var(--accent);
}
.sec-title { font-size: clamp(28px, 4vw, 40px); font-weight: 900; line-height: 1.25; letter-spacing: .01em; }
.sec-sub { color: var(--steel); margin-top: 12px; max-width: 640px; font-size: 16px; }

/* 按钮 */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 14px 30px; border-radius: 4px; font-size: 16px; font-weight: 700;
  border: 1px solid transparent; cursor: pointer; transition: all .25s ease;
}
.btn-primary { background: var(--brand); color: #fff; }
.btn-primary:hover { background: var(--brand-deep); transform: translateY(-2px); box-shadow: 0 8px 20px rgba(20,83,154,.3); }
.btn-ghost { border-color: var(--ink); color: var(--ink); background: transparent; }
.btn-ghost:hover { background: var(--ink); color: #fff; }

/* ---------- 顶部信息条 ---------- */
.topbar { background: var(--ink); color: rgba(255,255,255,.85); font-size: 13px; }
.topbar .wrap { display: flex; justify-content: space-between; align-items: center; height: 36px; }
.topbar .mono { letter-spacing: .04em; }
.topbar a:hover { color: var(--amber); }

/* ---------- 导航 ---------- */
.header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(255,255,255,.92); backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line); transition: box-shadow .3s;
}
.header.scrolled { box-shadow: 0 4px 24px rgba(16,32,46,.1); }
.nav { display: flex; align-items: center; justify-content: space-between; height: 72px; }
.logo { display: flex; align-items: center; gap: 12px; }
.logo-img { height: 46px; width: auto; }

/* 关于栏 / 技术参数配图（图在 assets/images/，覆盖同名文件即可替换） */
.about-figure { background: var(--white); border: 1px solid var(--line); border-radius: 8px; padding: 14px 14px 0; margin: 0 0 24px; box-shadow: var(--shadow-card); }
.about-figure img { width: 100%; border-radius: 4px; }
.about-figure figcaption, .tech-figure figcaption { font-size: 13px; color: var(--steel); text-align: center; padding: 10px 0 12px; }
.tech-figure { grid-column: 1 / -1; background: var(--white); border: 1px solid var(--line); border-radius: 8px; padding: 22px 22px 0; margin-bottom: 14px; box-shadow: var(--shadow-card); }
.tech-figure img { max-width: 680px; width: 100%; margin: 0 auto; }
.logo-mark {
  width: 44px; height: 44px; background: var(--brand); color: #fff; border-radius: 6px;
  display: grid; place-items: center; font-weight: 900; font-size: 20px; letter-spacing: -.02em;
  font-family: var(--font-mono); position: relative;
}
.logo-mark::after {
  content: ""; position: absolute; right: 4px; bottom: 4px; width: 8px; height: 8px;
  background: var(--amber); border-radius: 2px;
}
.logo-text strong { display: block; font-size: 19px; font-weight: 900; line-height: 1.2; letter-spacing: .06em; }
.logo-text span { display: block; font-family: var(--font-mono); font-size: 10px; color: var(--steel); letter-spacing: .14em; }
.nav-links { display: flex; gap: 34px; }
.nav-links a { font-size: 15px; font-weight: 500; color: var(--ink); position: relative; padding: 6px 0; }
.nav-links a::after {
  content: ""; position: absolute; left: 0; bottom: 0; width: 0; height: 2px;
  background: var(--brand); transition: width .25s;
}
.nav-links a:hover::after { width: 100%; }
.nav-phone { display: flex; align-items: center; gap: 10px; background: var(--brand); color: #fff; padding: 10px 20px; border-radius: 4px; font-weight: 700; }
.nav-phone:hover { background: var(--brand-deep); }
.nav-phone .num { font-size: 17px; }
.nav-toggle { display: none; background: none; border: none; cursor: pointer; padding: 8px; }
.nav-toggle span { display: block; width: 24px; height: 2px; background: var(--ink); margin: 5px 0; transition: .3s; }

/* ---------- Hero ---------- */
.hero {
  position: relative; overflow: hidden;
  background:
    linear-gradient(rgba(242,245,247,0) 0%, var(--paper) 96%),
    linear-gradient(90deg, rgba(201,211,219,.28) 1px, transparent 1px),
    linear-gradient(rgba(201,211,219,.28) 1px, transparent 1px),
    linear-gradient(135deg, #FBFCFD 0%, #EDF2F5 100%);
  background-size: auto, 56px 56px, 56px 56px, auto;
  padding: 84px 0 40px;
}
.hero-grid { display: grid; grid-template-columns: 1.05fr 1fr; gap: 40px; align-items: center; }
.hero-tag {
  display: inline-flex; align-items: center; gap: 10px;
  font-family: var(--font-mono); font-size: 13px; letter-spacing: .12em;
  color: var(--brand); border: 1px solid rgba(20,83,154,.35);
  padding: 7px 16px; border-radius: 3px; margin-bottom: 24px; background: rgba(255,255,255,.6);
}
.hero-tag i { width: 8px; height: 8px; background: var(--accent); border-radius: 50%; font-style: normal; animation: blink 2s infinite; }
@keyframes blink { 50% { opacity: .25; } }
.hero h1 { font-size: clamp(36px, 5.2vw, 58px); font-weight: 900; line-height: 1.18; letter-spacing: .01em; }
.hero h1 em { font-style: normal; color: var(--brand); }
.hero-desc { margin-top: 22px; color: var(--steel); font-size: 17px; max-width: 520px; }
.hero-actions { display: flex; gap: 16px; margin-top: 36px; flex-wrap: wrap; }

/* Hero 右侧：工程标注图（签名元素） */
.hero-figure { position: relative; }
.hero-figure img { width: 100%; max-width: 560px; margin: 0 auto; }
.callout { position: absolute; display: flex; align-items: center; gap: 8px; }
.callout-label {
  font-family: var(--font-mono); font-size: 12.5px; letter-spacing: .05em;
  background: var(--white); border: 1px solid var(--line); color: var(--ink);
  padding: 5px 12px; border-radius: 3px; box-shadow: 0 2px 8px rgba(16,32,46,.08); white-space: nowrap;
}
.callout-label b { color: var(--accent); font-weight: 600; }
.callout-line { height: 1px; background: var(--steel); position: relative; }
.callout-line::before, .callout-line::after {
  content: ""; position: absolute; top: -2.5px; width: 6px; height: 6px; border-radius: 50%; background: var(--steel);
}
.callout-line::before { left: -2px; }
.callout-line::after { right: -2px; }
/* 标注点定位（相对 hero-figure，百分比适配图片缩放） */
.c1 { top: 13%; left: 8%; width: 24%; flex-direction: row; }
.c2 { top: 40%; left: -2%; width: 22%; flex-direction: row; }
.c3 { top: 66%; left: 4%; width: 18%; flex-direction: row; }
.c4 { top: 30%; right: 2%; width: 20%; flex-direction: row-reverse; }

/* ---------- 数据条 ---------- */
.stats { background: var(--ink); color: #fff; padding: 40px 0; }
.stats-grid { display: grid; grid-template-columns: repeat(5, 1fr); gap: 24px; }
.stat { text-align: center; position: relative; }
.stat + .stat::before {
  content: ""; position: absolute; left: -12px; top: 50%; transform: translateY(-50%);
  height: 56px; width: 1px; background: rgba(255,255,255,.14);
}
.stat-num { font-family: var(--font-mono); font-size: clamp(26px, 3vw, 36px); font-weight: 600; color: var(--amber); line-height: 1.2; }
.stat-num small { font-size: .55em; color: rgba(255,255,255,.75); margin-left: 2px; }
.stat-label { font-size: 13.5px; color: rgba(255,255,255,.72); margin-top: 6px; }

/* ---------- 关于 / 无弹簧优势 ---------- */
.about { background: var(--white); }
.about-grid { display: grid; grid-template-columns: 1.1fr .9fr; gap: 64px; align-items: start; }
.about-text p { color: var(--steel); margin-bottom: 16px; font-size: 16px; }
.about-text strong { color: var(--ink); }
.about-quote {
  border-left: 3px solid var(--accent); background: var(--paper);
  padding: 18px 22px; border-radius: 0 6px 6px 0; color: var(--ink); font-size: 15.5px;
}
.feats { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px; }
.feat {
  background: var(--paper); border: 1px solid var(--line); border-radius: 6px;
  padding: 18px 18px 16px; transition: transform .25s, box-shadow .25s, border-color .25s;
}
.feat:hover { transform: translateY(-3px); box-shadow: var(--shadow-card); border-color: rgba(28,110,88,.4); }
.feat-key { font-family: var(--font-mono); font-size: 22px; font-weight: 600; color: var(--accent); }
.feat-key small { font-size: .6em; margin-left: 2px; }
.feat-title { font-weight: 700; font-size: 15.5px; margin-top: 4px; }
.feat-desc { font-size: 13.5px; color: var(--steel); margin-top: 4px; line-height: 1.6; }

/* ---------- 产品中心 ---------- */
.products { background: var(--paper); }
.series-band {
  display: flex; flex-wrap: wrap; gap: 12px; margin-bottom: 36px;
}
.series-chip {
  font-family: var(--font-mono); font-size: 13.5px; background: var(--white);
  border: 1px solid var(--line); border-radius: 3px; padding: 8px 16px; color: var(--steel);
}
.series-chip b { color: var(--brand); font-weight: 600; }
.prod-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.prod-card {
  background: var(--white); border: 1px solid var(--line); border-radius: 8px;
  overflow: hidden; transition: transform .25s, box-shadow .25s; position: relative;
}
.prod-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-card); }
.prod-badge {
  position: absolute; top: 12px; left: 12px; z-index: 2;
  font-family: var(--font-mono); font-size: 11.5px; letter-spacing: .06em;
  padding: 4px 10px; border-radius: 3px; color: #fff;
}
.badge-f { background: var(--accent); }
.badge-fb { background: var(--ink); }
.prod-img { background: radial-gradient(ellipse at 50% 42%, #FFFFFF 0%, #EDF1F4 100%); padding: 26px 18px 10px; }
.prod-img img { aspect-ratio: 1; object-fit: contain; mix-blend-mode: multiply; }
.prod-info { padding: 18px 20px 22px; border-top: 1px solid var(--line); }
.prod-model { font-family: var(--font-mono); font-size: 17px; font-weight: 600; color: var(--brand); }
.prod-name { font-weight: 700; font-size: 15px; margin-top: 3px; }
.prod-spec { font-size: 13px; color: var(--steel); margin-top: 8px; line-height: 1.7; }
.prod-spec .num { color: var(--ink); }

/* ---------- 规格对比表 ---------- */
.spec-table-wrap { overflow-x: auto; background: var(--white); border: 1px solid var(--line); border-radius: 8px; box-shadow: var(--shadow-card); }
table.spec { width: 100%; border-collapse: collapse; min-width: 640px; font-size: 14.5px; }
table.spec th, table.spec td { padding: 13px 22px; text-align: left; border-bottom: 1px solid var(--line); }
table.spec thead th {
  background: var(--ink); color: #fff; font-weight: 700; font-size: 13.5px; letter-spacing: .05em;
}
table.spec thead th .num { color: var(--amber); }
table.spec tbody tr:last-child td { border-bottom: none; }
table.spec tbody tr:nth-child(even) { background: #F7FAFB; }
table.spec td:first-child { color: var(--steel); white-space: nowrap; }
table.spec td { font-family: var(--font-mono); }
table.spec td:first-child { font-family: var(--font-body); }
table.spec tbody tr:hover { background: rgba(20,83,154,.05); }

/* ---------- 分气箱 ---------- */
.boxes { background: var(--white); }
.box-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.box-card {
  border: 1px solid var(--line); border-radius: 8px; background: var(--paper);
  padding: 34px 36px; position: relative; overflow: hidden; transition: transform .25s, box-shadow .25s;
}
.box-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-card); }
.box-card::before {
  content: attr(data-label); position: absolute; top: 0; right: 0;
  font-family: var(--font-mono); font-size: 11px; letter-spacing: .1em;
  background: var(--brand); color: #fff; padding: 5px 14px; border-radius: 0 8px 0 8px; z-index: 1;
}
/* 分气箱产品图（位于 assets/images/，覆盖同名文件即可替换） */
.box-img {
  background: radial-gradient(ellipse at 50% 45%, #FFFFFF 0%, #EDF1F4 100%);
  border: 1px solid var(--line); border-radius: 6px;
  padding: 18px; margin-bottom: 22px;
}
.box-img img { width: 100%; max-width: 300px; margin: 0 auto; aspect-ratio: 1; object-fit: contain; mix-blend-mode: multiply; }
.box-card.alt::before { background: var(--accent); }
.box-card h3 { font-size: 21px; font-weight: 900; }
.box-card .model-line { font-family: var(--font-mono); color: var(--brand); font-size: 14px; margin-top: 4px; }
.box-card.alt .model-line { color: var(--accent); }
.box-list { margin-top: 18px; display: grid; gap: 9px; }
.box-list li {
  font-size: 14.5px; color: var(--steel); padding-left: 20px; position: relative;
}
.box-list li::before {
  content: "▪"; position: absolute; left: 0; color: var(--amber);
}
.box-list .num { color: var(--ink); }
.box-note {
  margin-top: 20px; padding: 12px 16px; background: rgba(20,83,154,.07);
  border-radius: 4px; font-size: 13.5px; color: var(--brand-deep);
}

/* ---------- 车间实力 ---------- */
.workshop { background: var(--paper); }
.ws-grid { display: grid; grid-template-columns: 1.15fr .85fr; gap: 24px; }
.ws-item { position: relative; border-radius: 8px; overflow: hidden; box-shadow: var(--shadow-card); }
.ws-item img { width: 100%; height: 100%; object-fit: cover; transition: transform .6s ease; }
.ws-item:hover img { transform: scale(1.04); }
.ws-caption {
  position: absolute; left: 0; right: 0; bottom: 0;
  background: linear-gradient(transparent, rgba(16,32,46,.85));
  color: #fff; padding: 44px 26px 22px;
}
.ws-caption b { font-size: 18px; display: flex; align-items: center; gap: 10px; }
.ws-caption b::before { content: ""; width: 22px; height: 2px; background: var(--amber); }
.ws-caption span { font-size: 13.5px; color: rgba(255,255,255,.8); }

/* ---------- 视频中心 ---------- */
.videos { background: var(--ink); color: #fff; }
.videos .sec-title { color: #fff; }
.videos .sec-sub { color: rgba(255,255,255,.65); }
.videos .sec-tag { color: var(--amber); }
.videos .sec-tag::before { background: var(--amber); }
.video-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 26px; align-items: stretch; }
.video-card {
  position: relative; border-radius: 8px; overflow: hidden; cursor: pointer;
  border: 1px solid rgba(255,255,255,.12); background: #000; aspect-ratio: 16/9;
}
.video-card img.poster { width: 100%; height: 100%; object-fit: cover; opacity: .92; transition: opacity .3s, transform .5s; }
.video-card:hover img.poster { opacity: 1; transform: scale(1.03); }
.video-card video { width: 100%; height: 100%; object-fit: contain; background: #000; display: none; }
.video-card.playing img.poster, .video-card.playing .video-play, .video-card.playing .video-title { display: none; }
.video-card.playing video { display: block; }
.video-play {
  position: absolute; inset: 0; margin: auto; width: 76px; height: 76px;
  border-radius: 50%; background: rgba(224,154,45,.95); border: none; cursor: pointer;
  display: grid; place-items: center; transition: transform .25s; box-shadow: 0 6px 24px rgba(0,0,0,.4);
}
.video-card:hover .video-play { transform: scale(1.1); }
.video-play svg { margin-left: 5px; }
.video-title {
  position: absolute; left: 0; right: 0; bottom: 0; padding: 40px 22px 18px;
  background: linear-gradient(transparent, rgba(0,0,0,.8));
  font-weight: 700; font-size: 17px;
}
.video-title .mono { display: block; font-size: 12px; color: var(--amber); letter-spacing: .1em; margin-bottom: 4px; font-weight: 400; }

/* ---------- 技术参数 ---------- */
.tech { background: var(--white); }
.tech-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 0 56px; }
.tech-row {
  display: flex; justify-content: space-between; align-items: baseline; gap: 20px;
  padding: 13px 4px; border-bottom: 1px dashed var(--line);
}
.tech-row dt { color: var(--steel); font-size: 14.5px; white-space: nowrap; }
.tech-row dd { font-family: var(--font-mono); font-size: 14.5px; text-align: right; }
.tech-row dd.hl { color: var(--accent); font-weight: 600; }
.tech-heading {
  grid-column: 1 / -1; margin: 26px 0 6px; padding-top: 18px; border-top: 2px solid var(--ink);
  font-family: var(--font-mono); font-size: 13px; letter-spacing: .16em; color: var(--brand); font-weight: 600;
}
.tech-heading:first-child { margin-top: 0; border-top: none; padding-top: 0; }

/* ---------- 联系我们 ---------- */
.contact { background: linear-gradient(160deg, #0C3A70 0%, #10202E 70%); color: #fff; }
.contact .sec-tag { color: var(--amber); }
.contact .sec-tag::before { background: var(--amber); }
.contact .sec-title { color: #fff; }
.contact .sec-sub { color: rgba(255,255,255,.65); }
.contact-grid { display: grid; grid-template-columns: 1.15fr .85fr; gap: 56px; align-items: start; }
.contact-phone-big { font-family: var(--font-mono); font-size: clamp(34px, 4.6vw, 52px); font-weight: 600; color: var(--amber); letter-spacing: .02em; line-height: 1.2; }
.contact-phone-big a { color: inherit; }
.contact-phone-big a:hover { color: #fff; }
.contact-phone-label { color: rgba(255,255,255,.6); font-size: 14px; margin-top: 6px; letter-spacing: .1em; font-family: var(--font-mono); }
.contact-list { margin-top: 34px; display: grid; gap: 18px; }
.contact-item { display: flex; gap: 16px; align-items: flex-start; }
.contact-ico {
  width: 44px; height: 44px; flex: none; border-radius: 6px;
  background: rgba(255,255,255,.08); border: 1px solid rgba(255,255,255,.14);
  display: grid; place-items: center; color: var(--amber);
}
.contact-item b { display: block; font-size: 15px; }
.contact-item p { color: rgba(255,255,255,.75); font-size: 15px; line-height: 1.7; }
.contact-item .num { color: #fff; }
.contact-catalog {
  background: rgba(255,255,255,.06); border: 1px dashed rgba(255,255,255,.25);
  border-radius: 8px; padding: 30px 32px;
}
.contact-catalog h3 { font-size: 19px; display: flex; align-items: center; gap: 10px; }
.contact-catalog p { color: rgba(255,255,255,.7); font-size: 14.5px; margin: 10px 0 20px; }
.contact-catalog .btn { width: 100%; }

/* ---------- 页脚 ---------- */
.footer { background: var(--ink); color: rgba(255,255,255,.55); padding: 30px 0; font-size: 13.5px; }
.footer .wrap { display: flex; justify-content: space-between; align-items: center; gap: 16px; flex-wrap: wrap; }
.footer .mono { letter-spacing: .06em; }

/* ---------- 滚动浮现（仅 JS 可用时生效；无 JS / 打印时内容始终可见） ---------- */
html:not(.no-js) .reveal { opacity: 0; transform: translateY(26px); transition: opacity .7s ease, transform .7s ease; }
html:not(.no-js) .reveal.visible { opacity: 1; transform: none; }
@media print {
  html:not(.no-js) .reveal { opacity: 1; transform: none; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  html:not(.no-js) .reveal { opacity: 1; transform: none; transition: none; }
  .hero-tag i { animation: none; }
}

/* ---------- 响应式 ---------- */
@media (max-width: 1024px) {
  .hero-grid { grid-template-columns: 1fr; }
  .hero-figure { max-width: 520px; margin: 0 auto; }
  .stats-grid { grid-template-columns: repeat(3, 1fr); gap: 32px 0; }
  .stat:nth-child(4)::before { display: none; }
  .prod-grid { grid-template-columns: repeat(2, 1fr); }
  .about-grid, .contact-grid { grid-template-columns: 1fr; gap: 44px; }
  .box-grid, .video-grid { grid-template-columns: 1fr; }
  .ws-grid { grid-template-columns: 1fr; }
  .ws-item img { max-height: 420px; }
  .tech-grid { grid-template-columns: 1fr; }
}
@media (max-width: 768px) {
  .sec { padding: 64px 0; }
  .topbar .wrap span:first-child { display: none; }
  .nav-links {
    position: fixed; inset: 72px 0 auto 0; background: #fff; flex-direction: column;
    gap: 0; padding: 10px 0; border-bottom: 1px solid var(--line);
    transform: translateY(-130%); transition: transform .35s ease; z-index: 99;
    box-shadow: 0 20px 40px rgba(16,32,46,.15);
  }
  .nav-links.open { transform: none; }
  .nav-links a { padding: 14px 5%; border-bottom: 1px solid var(--paper-2); }
  .nav-toggle { display: block; }
  .nav-phone span { display: none; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .stat::before { display: none !important; }
  .prod-grid { grid-template-columns: 1fr; }
  .feats { grid-template-columns: 1fr 1fr; }
  .callout-label { font-size: 11px; padding: 4px 8px; }
  .hero { padding-top: 56px; }
  .footer .wrap { flex-direction: column; text-align: center; }
}
@media (max-width: 480px) {
  .feats { grid-template-columns: 1fr; }
  .callout { display: none; }
  .hero-figure::after {
    content: "一体式膜片 · 无弹簧流道 · 快装线圈 · 消音器";
    display: block; text-align: center; font-family: var(--font-mono);
    font-size: 12px; color: var(--steel); margin-top: 10px;
  }
}