/* ============================================================
   江苏图胜智能装备有限公司 · 官网首页
   Design tokens / 1440 设计稿 · 容器 1280 · 深墨蓝工业基调
   ============================================================ */

:root {
  --ink: #0A1628;
  --ink-2: #0E1C30;
  --ink-3: #071120;
  --panel: #132238;
  --steel: #B9C2CC;
  --line-dark: rgba(185, 194, 204, .16);
  --red: #C8102E;
  --gold: #D9B87C;
  --gold-l: #F0D9A8;
  --red-l: #E1223A;
  --paper: #FFFFFF;
  --paper-2: #F5F7FA;
  --bd: #E3E8EF;
  --text: #0F172A;
  --text-2: #5A6779;
  --wrap: 1280px;
  --ease: cubic-bezier(.2, .7, .3, 1);
}

*, *::before, *::after { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", "Source Han Sans SC", "Noto Sans SC", sans-serif;
  font-size: 16px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
h1, h2, h3, h4 { margin: 0; font-weight: 700; letter-spacing: -.01em; }
p { margin: 0; }
ul, ol, dl, dd { margin: 0; padding: 0; list-style: none; }

.wrap { width: min(var(--wrap), calc(100% - 96px)); margin: 0 auto; }

.skip {
  position: absolute; left: -9999px; top: 0; z-index: 100;
  background: var(--red); color: #fff; padding: 10px 18px;
}
.skip:focus { left: 12px; top: 12px; }

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  height: 52px; padding: 0 30px;
  font-size: 15px; font-weight: 600; letter-spacing: .02em;
  border: 1px solid transparent; border-radius: 3px;
  transition: background .25s var(--ease), color .25s var(--ease),
              border-color .25s var(--ease), transform .25s var(--ease);
  cursor: pointer;
}
.btn-sm { height: 42px; padding: 0 20px; font-size: 14px; }
.btn-red { background: var(--red); color: #fff; }
.btn-red:hover { background: var(--red-l); transform: translateY(-1px); }
.btn-ghost { border-color: rgba(255, 255, 255, .38); color: #fff; }
.btn-ghost:hover { background: rgba(255, 255, 255, .1); border-color: #fff; }
.btn-line { border-color: var(--ink); color: var(--ink); }
.btn-line:hover { background: var(--ink); color: #fff; }

/* ============================================================
   页头
   ============================================================ */
.hdr {
  position: fixed; inset: 0 0 auto 0; z-index: 50;
  transition: background .3s var(--ease), box-shadow .3s var(--ease);
}
.hdr::after {
  content: ""; position: absolute; inset: auto 0 0; height: 1px;
  background: rgba(255, 255, 255, .12); opacity: 1;
  transition: opacity .3s var(--ease);
}
.hdr.on { background: rgba(10, 22, 40, .94); backdrop-filter: saturate(140%) blur(10px); box-shadow: 0 6px 24px rgba(4, 10, 20, .28); }
.hdr.on::after { opacity: 0; }

.hdr-in {
  width: min(var(--wrap), calc(100% - 96px)); margin: 0 auto;
  height: 84px; display: flex; align-items: center; gap: 40px;
}

.logo { display: flex; align-items: center; gap: 12px; flex: none; }
.logo-mark { width: 34px; height: 38px; flex: none; }
.logo-txt { display: flex; flex-direction: column; line-height: 1.15; color: #fff; }
.logo-txt b { font-size: 19px; letter-spacing: .06em; font-weight: 700; }
.logo-txt i {
  font-style: normal; font-size: 9.5px; letter-spacing: .16em;
  color: rgba(255, 255, 255, .55); margin-top: 4px;
}

.nav { margin-left: auto; }
.nav ul { display: flex; gap: 34px; }
.nav a {
  position: relative; color: rgba(255, 255, 255, .82);
  font-size: 15px; padding: 6px 0; transition: color .2s var(--ease);
}
.nav a::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: 0; height: 2px;
  background: var(--red); transform: scaleX(0); transform-origin: left;
  transition: transform .28s var(--ease);
}
.nav a:hover { color: #fff; }
.nav a:hover::after { transform: scaleX(1); }

.hdr-act { display: flex; align-items: center; gap: 22px; flex: none; }
.hdr-tel { display: flex; flex-direction: column; line-height: 1.2; color: #fff; }
.hdr-tel-en { font-size: 10.5px; letter-spacing: .16em; color: rgba(255, 255, 255, .5); }
.hdr-tel b { font-size: 17px; letter-spacing: .02em; margin-top: 2px; }

.burger {
  display: none; width: 42px; height: 42px; padding: 0;
  border: 1px solid rgba(255, 255, 255, .3); border-radius: 3px;
  background: transparent; cursor: pointer;
}
.burger span {
  display: block; width: 18px; height: 1.5px; background: #fff;
  margin: 4px auto; transition: transform .3s var(--ease), opacity .2s;
}
body.nav-open .burger span:nth-child(1) { transform: translateY(5.5px) rotate(45deg); }
body.nav-open .burger span:nth-child(2) { opacity: 0; }
body.nav-open .burger span:nth-child(3) { transform: translateY(-5.5px) rotate(-45deg); }

/* ============================================================
   首屏
   ============================================================ */
.hero {
  position: relative; min-height: 100vh;
  display: flex; flex-direction: column; justify-content: flex-end;
  background: var(--ink-3); color: #fff; overflow: hidden;
}
.hero-bg { position: absolute; inset: 0; }
.hero-bg img {
  width: 100%; height: 100%; object-fit: cover; object-position: 62% 50%;
  transform: scale(1.03);
  animation: heroZoom 18s ease-out forwards;
}
@keyframes heroZoom { from { transform: scale(1.08); } to { transform: scale(1); } }

.hero-veil {
  position: absolute; inset: 0;
  background:
    linear-gradient(90deg, rgba(6, 13, 24, .95) 0%, rgba(6, 13, 24, .82) 38%, rgba(6, 13, 24, .38) 72%, rgba(6, 13, 24, .22) 100%),
    linear-gradient(180deg, rgba(6, 13, 24, .72) 0%, rgba(6, 13, 24, 0) 26%, rgba(6, 13, 24, .1) 62%, rgba(6, 13, 24, .88) 100%);
}

.hero-in {
  position: relative; z-index: 2;
  padding-top: 150px; padding-bottom: 60px;
  flex: 1; display: flex; flex-direction: column; justify-content: center;
}

.kicker {
  display: inline-flex; align-items: center; gap: 10px;
  font-size: 13px; letter-spacing: .14em; color: rgba(255, 255, 255, .72);
}
.kicker::before { content: ""; width: 26px; height: 2px; background: var(--red); }

.hero h1 {
  margin: 26px 0 30px;
  font-size: clamp(36px, 4.5vw, 70px);
  line-height: 1.12; letter-spacing: -.02em; font-weight: 700;
}
.hero h1 em {
  display: block; font-style: normal; font-weight: 400;
  font-size: .64em; line-height: 1.2; letter-spacing: 0;
  color: var(--steel); margin-top: .12em;
}

.hero-lead {
  max-width: 680px; font-size: 17px; line-height: 1.9;
  color: rgba(255, 255, 255, .78);
}

.btns { display: flex; gap: 16px; margin-top: 40px; flex-wrap: wrap; }

.hero-metrics {
  position: relative; z-index: 2;
  display: grid; grid-template-columns: repeat(4, 1fr);
  border-top: 1px solid rgba(255, 255, 255, .16);
  padding-top: 26px; padding-bottom: 46px;
}
.metric { padding-left: 30px; border-left: 1px solid rgba(255, 255, 255, .1); }
.metric:first-child { padding-left: 0; border-left: 0; }
.metric-v { display: flex; align-items: baseline; gap: 5px; }
.metric-v b {
  font-size: 40px; font-weight: 700; letter-spacing: -.02em; line-height: 1;
  font-variant-numeric: tabular-nums;
}
.metric-v i { font-style: normal; font-size: 14px; color: var(--steel); }
.metric-l { margin-top: 10px; font-size: 14px; color: #fff; }
.metric-n { margin-top: 2px; font-size: 12.5px; color: rgba(255, 255, 255, .48); }

.hero-scroll {
  position: absolute; left: 50%; bottom: 18px; z-index: 3;
  width: 22px; height: 36px; margin-left: -11px;
  border: 1px solid rgba(255, 255, 255, .35); border-radius: 12px;
  display: flex; justify-content: center; padding-top: 7px;
}
.hero-scroll span {
  width: 2px; height: 8px; background: rgba(255, 255, 255, .8);
  animation: scrollDot 1.8s infinite;
}
@keyframes scrollDot { 0% { transform: translateY(0); opacity: 1; } 70% { transform: translateY(12px); opacity: 0; } 100% { opacity: 0; } }

/* ============================================================
   通用区块
   ============================================================ */
.sec { padding: 118px 0; }
.sec-light { background: var(--paper-2); }
.sec-white { background: var(--paper); }
.sec-dark { background: var(--ink); color: #fff; }

.sec-head { max-width: 820px; margin-bottom: 62px; }
.sec-head-left { max-width: none; }
.sec-en {
  display: block; font-size: 11.5px; letter-spacing: .22em;
  color: var(--red); font-weight: 600; margin-bottom: 18px;
}
.sec-head h2 {
  font-size: clamp(26px, 2.6vw, 40px); line-height: 1.24; letter-spacing: -.01em;
}
.sec-lead { margin-top: 20px; font-size: 16px; line-height: 1.85; color: var(--text-2); }
.sec-head-dark .sec-lead { color: rgba(255, 255, 255, .62); }

.sec-head-row {
  display: flex; align-items: flex-end; justify-content: space-between;
  gap: 30px; max-width: none;
}
.sec-more { font-size: 14px; color: var(--text-2); display: inline-flex; align-items: center; gap: 8px; }
.sec-more i { font-style: normal; color: var(--red); transition: transform .25s var(--ease); }
.sec-more:hover { color: var(--ink); }
.sec-more:hover i { transform: translateX(4px); }

/* ---------- 双入口 ---------- */
.entries-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 26px; }
.entry {
  background: var(--paper); border: 1px solid var(--bd);
  padding: 46px 44px 40px; display: flex; flex-direction: column;
  transition: border-color .3s var(--ease), transform .3s var(--ease), box-shadow .3s var(--ease);
}
.entry:hover { border-color: var(--ink); transform: translateY(-4px); box-shadow: 0 18px 44px rgba(10, 22, 40, .1); }
.entry-en { font-size: 11px; letter-spacing: .22em; color: var(--red); font-weight: 600; }
.entry h3 { font-size: 29px; margin: 14px 0 14px; }
.entry p { font-size: 15px; color: var(--text-2); line-height: 1.8; }
.entry ul { margin: 24px 0 0; border-top: 1px solid var(--bd); }
.entry li {
  position: relative; padding: 13px 0 13px 18px; font-size: 14.5px;
  border-bottom: 1px solid var(--bd); color: var(--text);
}
.entry li::before {
  content: ""; position: absolute; left: 0; top: 22px;
  width: 6px; height: 1px; background: var(--red);
}
.entry-go {
  margin-top: auto; padding-top: 30px; font-size: 14.5px; font-weight: 600; color: var(--ink);
  display: inline-flex; align-items: center; gap: 8px;
}
.entry-go i { font-style: normal; color: var(--red); transition: transform .25s var(--ease); }
.entry:hover .entry-go i { transform: translateX(5px); }
.entry-alt { background: var(--ink); border-color: var(--ink); color: #fff; }
.entry-alt p { color: rgba(255, 255, 255, .64); }
.entry-alt ul { border-color: rgba(255, 255, 255, .12); }
.entry-alt li { border-color: rgba(255, 255, 255, .12); color: rgba(255, 255, 255, .9); }
.entry-alt .entry-go { color: #fff; }
.entry-alt:hover { border-color: var(--red); }

/* ---------- 产品中心 ---------- */
.lines { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; }
.line {
  grid-column: auto;
  position: relative;
  padding: 0 32px 32px;
  background: linear-gradient(180deg, #101F35 0%, #0B1728 100%);
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, .09);
  display: flex; flex-direction: column;
  transition: border-color .3s var(--ease), transform .3s var(--ease), background .3s var(--ease);
}
.line:hover { border-color: rgba(200, 16, 46, .6); transform: translateY(-4px); }
.line-pic {
  margin: 0 -32px 24px; height: 380px;
  background: #EDF1F6; display: grid; place-items: center; overflow: hidden;
}
.line-pic img {
  width: 96%; height: 96%; object-fit: contain;
  mix-blend-mode: multiply; transition: transform .5s var(--ease);
}
.line:hover .line-pic img { transform: scale(1.04); }
.line-top { display: flex; align-items: center; justify-content: space-between; padding-top: 38px; }
.line-no { font-size: 12px; color: rgba(255, 255, 255, .28); font-variant-numeric: tabular-nums; }
.line-code { font-size: 12px; letter-spacing: .1em; color: var(--red-l); font-weight: 600; }
.line h3 { font-size: 23px; margin: 16px 0 12px; color: #fff; }
.line-sum { font-size: 14px; line-height: 1.8; color: rgba(255, 255, 255, .56); min-height: 76px; }
.line-spec {
  display: grid; grid-template-columns: repeat(3, 1fr);
  gap: 10px; margin-top: 22px; padding-top: 20px;
  border-top: 1px solid rgba(255, 255, 255, .1);
}
.line-spec dt { font-size: 11px; color: rgba(255, 255, 255, .4); letter-spacing: .04em; }
.line-spec dd { font-size: 15px; color: #fff; margin-top: 5px; font-variant-numeric: tabular-nums; }
.line-tags { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 20px; }
.line-tags span {
  font-size: 12px; padding: 3px 10px; color: rgba(255, 255, 255, .68);
  border: 1px solid rgba(255, 255, 255, .16);
}
.products-note {
  margin-top: 34px; font-size: 13px; color: rgba(255, 255, 255, .42);
}

/* ---------- 应用领域 ---------- */
.app-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.app {
  background: var(--paper); border: 1px solid var(--bd);
  border-top: 2px solid var(--bd);
  padding: 28px 26px 26px;
  transition: border-color .3s var(--ease), box-shadow .3s var(--ease), transform .3s var(--ease);
}
.app:hover { border-top-color: var(--red); box-shadow: 0 14px 34px rgba(10, 22, 40, .08); transform: translateY(-3px); }
.app-top { display: flex; align-items: center; gap: 10px; }
.app-no { font-size: 12px; color: var(--text-2); font-variant-numeric: tabular-nums; }
.app-en { font-size: 9.5px; letter-spacing: .12em; color: #9AA6B4; }
.app h3 { font-size: 19px; margin: 14px 0 10px; }
.app-mat { font-size: 13px; line-height: 1.7; color: var(--text-2); min-height: 44px; }
.app-models {
  margin-top: 16px; padding-top: 14px; border-top: 1px solid var(--bd);
  font-size: 12.5px; color: var(--text-2);
}
.app-models b { display: block; margin-top: 4px; font-size: 13.5px; color: var(--red); letter-spacing: .01em; }

/* ---------- 制造与检测 ---------- */
.mfg-grid { display: grid; grid-template-columns: 1.02fr 1fr; gap: 72px; align-items: center; }
.mfg-pic { margin: 0; position: relative; }
.mfg-pic img { width: 100%; height: auto; aspect-ratio: 4 / 3; object-fit: cover; }
.mfg-pic figcaption {
  position: absolute; left: 0; bottom: 0; right: 0;
  padding: 14px 20px; font-size: 12.5px; color: #fff;
  background: linear-gradient(180deg, rgba(6, 13, 24, 0), rgba(6, 13, 24, .82));
}
.mfg-txt p { font-size: 15.5px; line-height: 1.95; color: var(--text-2); }
.mfg-txt .sec-head { margin-bottom: 24px; }

.equip { display: flex; flex-wrap: wrap; gap: 10px; margin: 30px 0 36px; }
.equip li {
  font-size: 13.5px; padding: 7px 14px;
  border: 1px solid var(--bd); color: var(--text);
  background: var(--paper-2);
}
.mfg-nums { display: grid; grid-template-columns: repeat(4, 1fr); border-top: 1px solid var(--bd); padding-top: 22px; }
.mfg-nums > div { display: block; }
.mfg-nums b { font-size: 28px; line-height: 1; font-variant-numeric: tabular-nums; }
.mfg-nums i { font-style: normal; font-size: 12px; color: var(--text-2); margin-left: 4px; }
.mfg-nums span { display: block; font-size: 12.5px; color: var(--text-2); margin-top: 6px; }

/* ---------- 新基地 ---------- */
.base { background: var(--ink-3); color: #fff; padding: 78px 0; }
.base-in { display: grid; grid-template-columns: 1fr .92fr; gap: 64px; align-items: center; }
.base-en { font-size: 11.5px; letter-spacing: .22em; color: var(--red-l); font-weight: 600; }
.base h2 { font-size: clamp(24px, 2.3vw, 34px); margin: 14px 0 16px; }
.base p { font-size: 15px; line-height: 1.85; color: rgba(255, 255, 255, .6); max-width: 560px; }
.base-nums { display: grid; grid-template-columns: repeat(3, 1fr); border-left: 1px solid rgba(255, 255, 255, .14); }
.base-nums > div { padding-left: 28px; }
.base-nums b { display: inline-block; font-size: 40px; line-height: 1; color: #fff; font-variant-numeric: tabular-nums; }
.base-nums i { font-style: normal; font-size: 13px; color: var(--red-l); margin-left: 6px; }
.base-nums span { display: block; margin-top: 8px; font-size: 12.5px; color: rgba(255, 255, 255, .5); }

/* ---------- 关于 ---------- */
.about-grid { display: grid; grid-template-columns: 1.15fr .85fr; gap: 76px; align-items: start; }
.about-txt p { font-size: 15.5px; line-height: 1.95; color: var(--text-2); margin-bottom: 18px; }
.about-cta { margin-top: 28px; }
.about-cards { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.honor {
  background: var(--paper-2); border-left: 3px solid var(--red);
  padding: 26px 22px;
}
.honor b { display: block; font-size: 16.5px; }
.honor span { display: block; margin-top: 6px; font-size: 12.5px; color: var(--text-2); }

/* ---------- 新闻 ---------- */
.news-list { border-top: 1px solid var(--bd); }
.news-item {
  display: grid; grid-template-columns: 210px 1fr 40px; align-items: center;
  gap: 0 28px; padding: 30px 8px; border-bottom: 1px solid var(--bd);
  transition: background .25s var(--ease), padding-left .25s var(--ease);
}
.news-item:hover { background: var(--paper); padding-left: 20px; }
.news-meta { display: flex; flex-direction: column; gap: 6px; }
.news-cat { font-size: 12px; color: var(--red); letter-spacing: .06em; }
.news-meta time { font-size: 12.5px; color: #94A1B0; font-variant-numeric: tabular-nums; }
.news-item h3 { font-size: 18.5px; font-weight: 600; line-height: 1.5; }
.news-item > .news-meta { align-self: start; }
.news-item > .news-go { align-self: start; margin-top: 6px; }
.news-item p {
  grid-column: 2; font-size: 14px; color: var(--text-2); margin-top: 10px;
  display: -webkit-box; -webkit-line-clamp: 1; -webkit-box-orient: vertical; overflow: hidden;
}
.news-go { font-size: 18px; color: var(--red); justify-self: end; transition: transform .25s var(--ease); }
.news-item:hover .news-go { transform: translateX(5px); }

/* ---------- 询盘 ---------- */
.contact { background: var(--ink); }
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 80px; }
.contact-txt p { font-size: 15.5px; line-height: 1.9; color: rgba(255, 255, 255, .62); max-width: 480px; }
.contact-list { margin-top: 38px; border-top: 1px solid rgba(255, 255, 255, .14); }
.contact-list > div { display: flex; gap: 24px; padding: 16px 0; border-bottom: 1px solid rgba(255, 255, 255, .1); }
.contact-list dt { width: 76px; flex: none; font-size: 13px; color: rgba(255, 255, 255, .45); }
.contact-list dd { font-size: 15px; color: #fff; }
.contact-list a:hover { color: var(--red-l); }

.inq { background: rgba(255, 255, 255, .04); border: 1px solid rgba(255, 255, 255, .12); padding: 38px 36px; }
.inq-row { margin-bottom: 20px; }
.inq-row label { display: block; font-size: 13px; color: rgba(255, 255, 255, .62); margin-bottom: 8px; }
.inq-row label em { font-style: normal; color: var(--red-l); }
.inq-row input, .inq-row textarea {
  width: 100%; padding: 13px 15px;
  background: rgba(255, 255, 255, .05); border: 1px solid rgba(255, 255, 255, .16);
  color: #fff; font-size: 15px; font-family: inherit; border-radius: 2px;
  transition: border-color .2s var(--ease), background .2s var(--ease);
}
.inq-row input::placeholder, .inq-row textarea::placeholder { color: rgba(255, 255, 255, .3); }
.inq-row input:focus, .inq-row textarea:focus {
  outline: none; border-color: var(--red); background: rgba(255, 255, 255, .08);
}
.inq-row textarea { resize: vertical; min-height: 108px; line-height: 1.7; }
.inq-hp { position: absolute; left: -9999px; width: 1px; height: 1px; opacity: 0; }
.inq-submit { width: 100%; margin-top: 6px; }
.inq-tip { margin-top: 14px; font-size: 12.5px; color: rgba(255, 255, 255, .42); text-align: center; }
.inq-tip.ok { color: #6EE7A8; }
.inq-tip.err { color: #FF8A9B; }

/* ---------- 页脚 ---------- */
.ftr { background: #060F1C; color: #fff; padding: 64px 0 28px; }
.ftr-top { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1.1fr; gap: 48px; padding-bottom: 48px; }
.ftr-name { font-size: 18px; letter-spacing: .04em; }
.ftr-desc { margin-top: 16px; font-size: 13px; line-height: 1.9; color: rgba(255, 255, 255, .45); }
.ftr-tel { margin-top: 22px; font-size: 24px; font-weight: 700; letter-spacing: .02em; }
.ftr-col h4 { font-size: 13px; letter-spacing: .12em; color: rgba(255, 255, 255, .55); font-weight: 600; margin-bottom: 18px; }
.ftr-col li { margin-bottom: 11px; font-size: 13.5px; color: rgba(255, 255, 255, .72); }
.ftr-col a:hover { color: var(--red-l); }
.ftr-contact li { color: rgba(255, 255, 255, .72); }
.ftr-bot {
  display: flex; justify-content: space-between; gap: 20px; flex-wrap: wrap;
  padding-top: 24px; border-top: 1px solid rgba(255, 255, 255, .1);
  font-size: 12.5px; color: rgba(255, 255, 255, .38);
}
.ftr-icp a:hover { color: #fff; }

/* ---------- 404 ---------- */
.err { min-height: 78vh; display: flex; align-items: center; background: var(--ink); color: #fff; }
.err-in { padding: 140px 0 100px; }
.err-code { font-size: 84px; font-weight: 700; color: var(--red); line-height: 1; letter-spacing: -.03em; }
.err h1 { font-size: 30px; margin: 18px 0 16px; }
.err p { color: rgba(255, 255, 255, .6); margin-bottom: 30px; }

/* ---------- 进场动效 ---------- */
.reveal { opacity: 0; transform: translateY(26px); transition: opacity .8s var(--ease), transform .8s var(--ease); }
.reveal.in { opacity: 1; transform: none; }
html:not(.js) .reveal { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
  .hero-bg img { animation: none; }
}

/* ============================================================
   响应式
   ============================================================ */
@media (max-width: 1180px) {
  .hdr-in, .wrap { width: calc(100% - 64px); }
  .nav ul { gap: 24px; }
  .hdr-tel { display: none; }
  .lines { grid-template-columns: repeat(2, 1fr); }
  .app-grid { grid-template-columns: repeat(2, 1fr); }
  .mfg-grid { gap: 48px; }
  .about-grid { gap: 48px; }
  .contact-grid { gap: 48px; }
}

@media (max-width: 900px) {
  .sec { padding: 84px 0; }
  .sec-head { margin-bottom: 44px; }
  .hero-in { padding-top: 120px; }
  .hero-metrics { grid-template-columns: repeat(2, 1fr); row-gap: 26px; }
  .metric:nth-child(odd) { padding-left: 0; border-left: 0; }
  .metric:nth-child(n+3) { padding-top: 22px; border-top: 1px solid rgba(255, 255, 255, .1); }
  .entries-grid { grid-template-columns: 1fr; }
  .mfg-grid { grid-template-columns: 1fr; }
  .base-in { grid-template-columns: 1fr; gap: 36px; }
  .base-nums { border-left: 0; border-top: 1px solid rgba(255, 255, 255, .14); padding-top: 26px; }
  .base-nums > div:first-child { padding-left: 0; }
  .about-grid { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
  .news-item { grid-template-columns: 1fr 32px; gap: 10px 16px; }
  .news-meta { flex-direction: row; align-items: center; gap: 12px; }
  .news-item p { grid-column: 1 / -1; }
  .news-go { grid-row: 1; grid-column: 2; }
}

@media (max-width: 820px) {
  /* 移动端导航 */
  .burger { display: block; }
  .hdr-act .btn { display: none; }
  .nav {
    position: fixed; inset: 64px 0 auto; margin: 0;
    background: rgba(8, 17, 31, .985);
    border-top: 1px solid rgba(255, 255, 255, .1);
    max-height: 0; overflow: hidden;
    transition: max-height .4s var(--ease);
  }
  body.nav-open .nav { max-height: calc(100vh - 64px); overflow-y: auto; }
  .nav ul { flex-direction: column; gap: 0; padding: 8px 32px 24px; }
  .nav li { border-bottom: 1px solid rgba(255, 255, 255, .08); }
  .nav a { display: block; padding: 15px 0; font-size: 16px; }
  .nav a::after { display: none; }
  .hdr-in { height: 64px; gap: 16px; }
  .logo-txt b { font-size: 17px; }
  .logo-txt i { font-size: 8px; letter-spacing: .1em; }
  .logo-mark { width: 28px; height: 32px; }
}

@media (max-width: 640px) {
  .wrap, .hdr-in { width: calc(100% - 40px); }
  body { font-size: 15px; }
  .hero { min-height: 92vh; }
  .hero-bg img { object-position: 66% 50%; }
  .kicker { font-size: 11.5px; letter-spacing: .08em; }
  .hero h1 { font-size: 32px; margin: 20px 0 22px; }
  .hero-lead { font-size: 14.5px; line-height: 1.85; }
  .hero-lead br { display: none; }
  .btns { gap: 12px; margin-top: 30px; }
  .btn { height: 48px; padding: 0 22px; font-size: 14.5px; }
  .btns .btn { flex: 1 1 auto; }
  .hero-metrics { padding-bottom: 34px; }
  .metric { padding-left: 18px; }
  .metric-v b { font-size: 30px; }
  .metric-l { font-size: 13px; }
  .metric-n { font-size: 11.5px; }
  .hero-scroll { display: none; }

  .sec { padding: 64px 0; }
  .sec-head h2 { font-size: 25px; }
  .sec-lead { font-size: 14.5px; margin-top: 14px; }
  .sec-head-row { flex-direction: column; align-items: flex-start; gap: 16px; }

  .entry { padding: 32px 24px 28px; }
  .entry h3 { font-size: 24px; }
  .lines { grid-template-columns: 1fr; }
  .line { padding: 0 24px 26px; }
  .line-pic { margin: 0 -24px 20px; height: auto; aspect-ratio: 1 / 1; }
  .line-top { padding-top: 28px; }
  .line-sum { min-height: 0; }
  .line-spec dd { font-size: 13.5px; }
  .news-go { display: none; }
  .app-grid { grid-template-columns: 1fr; }
  .app-mat { min-height: 0; }
  .equip li { font-size: 12.5px; padding: 6px 11px; }
  .mfg-nums { grid-template-columns: repeat(2, 1fr); row-gap: 20px; }
  .about-cards { grid-template-columns: 1fr; }
  .base-nums { grid-template-columns: 1fr; gap: 22px; }
  .base-nums > div { padding-left: 0; }
  .news-item { padding: 22px 0; gap: 8px 14px; }
  .news-item h3 { font-size: 16.5px; }
  .inq { padding: 26px 20px; }
  .ftr-top { grid-template-columns: 1fr 1fr; gap: 32px; }
  .ftr-brand { grid-column: 1 / -1; }
  .ftr-bot { font-size: 11.5px; }
}


/* ============================================================
   v5 增强：进度条 / 滚动监听 / 管理板块 / 服务流程 / 悬浮控件
   ============================================================ */

section[id], main[id] { scroll-margin-top: 84px; }

/* 顶部阅读进度 */
.progress {
  position: fixed; inset: 0 0 auto; height: 2px; z-index: 60;
  background: transparent; pointer-events: none;
}
.progress i {
  display: block; height: 100%; width: 100%;
  background: linear-gradient(90deg, var(--red) 0%, #FF5A6E 100%);
  transform: scaleX(0); transform-origin: left center;
  transition: transform .12s linear;
}

/* 导航当前区块 */
.nav a.on { color: #fff; }
.nav a.on::after { transform: scaleX(1); }

/* 产品卡：系列角标 + 悬停态 */
.line-pic { position: relative; }
.line-code-badge {
  position: absolute; left: 14px; bottom: 12px;
  font-size: 10.5px; letter-spacing: .06em; color: #fff;
  background: rgba(10, 22, 40, .72); padding: 4px 9px;
  opacity: 0; transform: translateY(6px);
  transition: opacity .3s var(--ease), transform .3s var(--ease);
}
.line:hover .line-code-badge { opacity: 1; transform: none; }
.line:hover .line-no { color: var(--red-l); }
.line-spec dd { transition: color .25s var(--ease); }
.line:hover .line-spec dd { color: #fff; }

/* 管理与质量 */
.mgmt { overflow: hidden; }
.mgmt-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.mgmt-card {
  position: relative; padding: 40px 30px 34px;
  background: linear-gradient(180deg, #101F35 0%, #0B1728 100%);
  border: 1px solid rgba(255, 255, 255, .09);
  transition: border-color .3s var(--ease), transform .3s var(--ease);
}
.mgmt-card::before {
  content: ""; position: absolute; inset: 0 auto auto 0; width: 100%; height: 2px;
  background: var(--red); transform: scaleX(0); transform-origin: left;
  transition: transform .4s var(--ease);
}
.mgmt-card:hover { border-color: rgba(200, 16, 46, .45); transform: translateY(-4px); }
.mgmt-card:hover::before { transform: scaleX(1); }
.mgmt-no {
  font-size: 34px; font-weight: 700; color: rgba(255, 255, 255, .16);
  line-height: 1; font-variant-numeric: tabular-nums;
  transition: color .3s var(--ease);
}
.mgmt-card:hover .mgmt-no { color: rgba(200, 16, 46, .5); }
.mgmt-card h3 { font-size: 21px; margin: 18px 0 12px; color: #fff; }
.mgmt-card p { font-size: 13.5px; line-height: 1.85; color: rgba(255, 255, 255, .56); }
.mgmt-note {
  margin-top: 40px; padding-top: 26px; border-top: 1px solid rgba(255, 255, 255, .12);
  font-size: 15px; color: rgba(255, 255, 255, .78);
}
.mgmt-note::before { content: "— "; color: var(--red-l); }

/* 服务流程 */
.flow-grid {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 0;
  border-top: 1px solid var(--bd); counter-reset: flow;
}
.flow-grid li {
  position: relative; padding: 34px 30px 0 0;
  border-right: 1px solid var(--bd);
  transition: background .3s var(--ease);
}
.flow-grid li:last-child { border-right: 0; }
.flow-grid li:not(:first-child) { padding-left: 30px; }
.flow-grid li::before {
  content: ""; position: absolute; top: -1px; left: 0; right: 0; height: 2px;
  background: var(--red); transform: scaleX(0); transform-origin: left;
  transition: transform .45s var(--ease);
}
.flow-grid li:hover::before { transform: scaleX(1); }
.flow-no {
  display: block; font-size: 12px; letter-spacing: .16em; color: var(--red);
  font-variant-numeric: tabular-nums;
}
.flow-grid h3 { font-size: 20px; margin: 14px 0 12px; }
.flow-grid p { font-size: 14px; line-height: 1.85; color: var(--text-2); }

/* 回到顶部 */
.totop {
  position: fixed; right: 28px; bottom: 28px; z-index: 40;
  width: 44px; height: 44px; display: grid; place-items: center;
  background: rgba(10, 22, 40, .9); color: #fff; font-size: 16px;
  border: 1px solid rgba(255, 255, 255, .18); border-radius: 2px;
  opacity: 0; visibility: hidden; transform: translateY(10px);
  transition: opacity .3s var(--ease), transform .3s var(--ease), background .25s, visibility .3s;
}
.totop.on { opacity: 1; visibility: visible; transform: none; }
.totop:hover { background: var(--red); border-color: var(--red); }

/* 首屏视差容器 */
.hero-bg { will-change: transform; }

@media (max-width: 1180px) {
  .mgmt-grid { grid-template-columns: repeat(2, 1fr); }
  .flow-grid { grid-template-columns: repeat(2, 1fr); }
  .flow-grid li { border-right: 0; border-bottom: 1px solid var(--bd); padding: 30px 24px 30px 0; }
  .flow-grid li:not(:first-child) { padding-left: 0; }
  .flow-grid li:nth-child(n+3) { padding-top: 30px; }
}

@media (max-width: 900px) {
  .mgmt-grid { grid-template-columns: 1fr; }
  .mgmt-card { padding: 30px 24px 28px; }
  .flow-grid { grid-template-columns: 1fr; }
  .totop { right: 16px; bottom: 16px; width: 40px; height: 40px; }
}

@media (max-width: 640px) {
  section[id], main[id] { scroll-margin-top: 64px; }
  .flow-grid li { padding: 26px 0; }
  .line-code-badge { opacity: 1; transform: none; }
  .mgmt-note { margin-top: 28px; }
}


/* ============================================================
   v6 产品分类标签 + 一行三型号
   ============================================================ */
.tabs {
  display: flex; gap: 0; border-bottom: 1px solid rgba(255, 255, 255, .16);
  margin-bottom: 40px; overflow-x: auto; scrollbar-width: none;
}
.tabs::-webkit-scrollbar { display: none; }
.tab {
  position: relative; flex: 0 0 auto;
  display: inline-flex; align-items: baseline; gap: 10px;
  padding: 0 30px 18px 0; margin-right: 30px;
  background: none; border: 0; cursor: pointer;
  color: rgba(255, 255, 255, .5); font-family: inherit;
  font-size: 16px; letter-spacing: .02em;
  transition: color .25s var(--ease);
}
.tab:last-child { margin-right: 0; }
.tab i {
  font-style: normal; font-size: 11px; letter-spacing: .08em;
  color: rgba(255, 255, 255, .28); font-variant-numeric: tabular-nums;
  transition: color .25s var(--ease);
}
.tab::after {
  content: ""; position: absolute; left: 0; right: 30px; bottom: -1px; height: 2px;
  background: var(--red); transform: scaleX(0); transform-origin: left;
  transition: transform .35s var(--ease);
}
.tab:hover { color: #fff; }
.tab.is-on { color: #fff; }
.tab.is-on i { color: var(--red-l); }
.tab.is-on::after { transform: scaleX(1); }
.tab:focus-visible { outline: 1px solid var(--red); outline-offset: 4px; }

.panel { animation: panelIn .45s var(--ease) both; }
.panel[hidden] { display: none; }
@keyframes panelIn { from { opacity: 0; transform: translateY(12px); } to { opacity: 1; transform: none; } }

.panel-head { display: flex; flex-direction: column; gap: 8px; margin-bottom: 28px; max-width: 760px; }
.panel-en { font-size: 10.5px; letter-spacing: .2em; color: var(--red-l); font-weight: 600; }
.panel-head p { font-size: 14px; line-height: 1.85; color: rgba(255, 255, 255, .55); }

.pgrid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }

.pcard {
  border: 1px solid rgba(255, 255, 255, .09);
  background: linear-gradient(180deg, #101F35 0%, #0B1728 100%);
  overflow: hidden; display: flex; flex-direction: column;
  transition: border-color .3s var(--ease), transform .3s var(--ease);
}
.pcard:hover { border-color: rgba(200, 16, 46, .55); transform: translateY(-4px); }

/* 原图 750×750，按 1:1 显示，不拉伸不裁切 */
.pcard-pic {
  position: relative; aspect-ratio: 1 / 1;
  background: #EDF1F6; display: grid; place-items: center; overflow: hidden;
}
.pcard-pic img {
  width: 96%; height: 96%; object-fit: contain;
  mix-blend-mode: multiply; transition: transform .5s var(--ease);
}
.pcard:hover .pcard-pic img { transform: scale(1.05); }
.pcard-code {
  position: absolute; left: 14px; bottom: 12px;
  font-size: 11px; letter-spacing: .06em; color: #fff;
  background: rgba(10, 22, 40, .78); padding: 4px 10px;
}

.pcard h3 { font-size: 16.5px; line-height: 1.45; padding: 22px 24px 0; color: #fff; }
.pcard-brief {
  font-size: 13px; line-height: 1.7; color: rgba(255, 255, 255, .5);
  padding: 8px 24px 0; flex: 1;
}
.pcard-spec {
  display: grid; grid-template-columns: repeat(3, 1fr);
  gap: 8px; margin: 20px 24px 24px; padding-top: 18px;
  border-top: 1px solid rgba(255, 255, 255, .1);
}
.pcard-spec dt { font-size: 10.5px; color: rgba(255, 255, 255, .38); letter-spacing: .04em; }
.pcard-spec dd { font-size: 14px; color: #fff; margin-top: 4px; font-variant-numeric: tabular-nums; }

@media (max-width: 1180px) {
  .pgrid { grid-template-columns: repeat(3, 1fr); gap: 16px; }
  .pcard h3 { font-size: 15.5px; }
}

@media (max-width: 900px) {
  .tab { padding-right: 20px; margin-right: 20px; font-size: 15px; }
  .tab::after { right: 20px; }
  .pgrid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 640px) {
  .tabs { margin-bottom: 26px; }
  .tab { padding: 0 18px 14px 0; margin-right: 18px; font-size: 14.5px; }
  .tab::after { right: 18px; }
  .tab i { font-size: 10px; }
  .pgrid { grid-template-columns: 1fr; }
  .pcard h3 { font-size: 17px; padding: 18px 20px 0; }
  .pcard-brief, .pcard-spec { padding-left: 20px; padding-right: 20px; }
  .pcard-spec { margin: 16px 20px 20px; gap: 6px; }
  .pcard-spec dt { font-size: 10px; }
  .pcard-spec dd { font-size: 12.5px; }
  .tabs { -webkit-mask-image: linear-gradient(90deg, #000 88%, transparent 100%); mask-image: linear-gradient(90deg, #000 88%, transparent 100%); }
}


/* ============================================================
   v7 层级 / 金色数字 / 全站悬停反馈（扫光）
   ============================================================ */
.hero h1 { font-size: clamp(36px, 4.5vw, 70px); }
.hero h1 em { font-size: .64em; }          /* 第二行 = 主标题的 64%（约 45px），主次分明 */

/* 核心数字：浅金色 + 悬停扫光 */
.metric { position: relative; overflow: hidden; padding-bottom: 6px; }
.metric-v b {
  color: var(--gold);
  transition: color .3s var(--ease), text-shadow .3s var(--ease);
}
.metric-v i { color: rgba(217, 184, 124, .72); transition: color .3s var(--ease); }
.metric:hover .metric-v b { color: var(--gold-l); text-shadow: 0 0 18px rgba(217, 184, 124, .35); }
.metric:hover .metric-v i { color: var(--gold-l); }
.metric::after {
  content: ""; position: absolute; top: 0; bottom: 0; left: -70%; width: 55%;
  background: linear-gradient(100deg, transparent 0%, rgba(255, 255, 255, .06) 40%, rgba(240, 217, 168, .55) 50%, rgba(255, 255, 255, .06) 60%, transparent 100%);
  transform: skewX(-18deg); opacity: 0; pointer-events: none;
  transition: left .75s cubic-bezier(.2, .7, .3, 1), opacity .25s;
}
.metric:hover::after { left: 130%; opacity: 1; }

/* 通用扫光：按钮 / 深色卡 / 产品卡 / 管理卡 */
.btn, .pcard, .mgmt-card { position: relative; overflow: hidden; }
.btn::after, .pcard::after, .mgmt-card::after {
  content: ""; position: absolute; top: 0; bottom: 0; left: -70%; width: 55%;
  background: linear-gradient(100deg, transparent 0%, rgba(255, 255, 255, .10) 42%, rgba(255, 255, 255, .30) 50%, rgba(255, 255, 255, .10) 58%, transparent 100%);
  transform: skewX(-18deg); opacity: 0; pointer-events: none;
  transition: left .7s cubic-bezier(.2, .7, .3, 1), opacity .2s;
}
.btn:hover::after, .pcard:hover::after, .mgmt-card:hover::after { left: 130%; opacity: 1; }

/* 通用扫光：浅色卡（用红金淡光，白光照不出来） */
.entry, .app, .honor, .news-item { position: relative; overflow: hidden; }
.entry::after, .app::after, .honor::after, .news-item::after {
  content: ""; position: absolute; top: 0; bottom: 0; left: -70%; width: 55%;
  background: linear-gradient(100deg, transparent 0%, rgba(200, 16, 46, .04) 40%, rgba(217, 184, 124, .30) 50%, rgba(200, 16, 46, .04) 60%, transparent 100%);
  transform: skewX(-18deg); opacity: 0; pointer-events: none;
  transition: left .7s cubic-bezier(.2, .7, .3, 1), opacity .2s;
}
.entry:hover::after, .app:hover::after, .honor:hover::after, .news-item:hover::after { left: 130%; opacity: 1; }

/* 其余可指元素补齐反馈 */
.equip li { transition: border-color .25s var(--ease), background .25s var(--ease), color .25s var(--ease), transform .25s var(--ease); }
.equip li:hover { border-color: var(--red); background: #fff; color: var(--ink); transform: translateY(-2px); }

.honor { transition: border-left-color .25s var(--ease), transform .25s var(--ease), background .25s var(--ease); }
.honor:hover { border-left-color: var(--ink); transform: translateY(-3px); background: #fff; }

.tab { transition: color .25s var(--ease), background .25s var(--ease); }
.tab:hover { background: rgba(255, 255, 255, .04); }

.sec-more { transition: color .25s var(--ease), transform .25s var(--ease); }
.sec-more:hover { transform: translateX(2px); }

.contact-list a, .ftr-col a, .ftr-icp a { transition: color .2s var(--ease), padding-left .2s var(--ease); }
.contact-list a:hover { color: var(--gold); }
.ftr-col a:hover { color: var(--gold); padding-left: 3px; }

.hdr-tel { transition: color .2s var(--ease), transform .2s var(--ease); }
.hdr-tel:hover { color: var(--gold); transform: translateY(-1px); }

.logo { transition: opacity .2s var(--ease); }
.logo:hover { opacity: .85; }

.hero-scroll { transition: border-color .25s var(--ease), transform .25s var(--ease); }
.hero-scroll:hover { border-color: var(--gold); transform: translateY(3px); }

.flow-grid li { transition: background .3s var(--ease), transform .3s var(--ease); }
.flow-grid li:hover { background: rgba(10, 22, 40, .02); transform: translateY(-2px); }

.totop { transition: opacity .3s var(--ease), transform .3s var(--ease), background .25s, visibility .3s, border-color .25s; }
.totop:hover { transform: translateY(-3px); }

/* 基地数字也用金色呼应首屏 */
.base-nums b { color: var(--gold); }
.base-nums i { color: rgba(217, 184, 124, .8); }

@media (max-width: 640px) {
  .hero h1 em { font-size: .62em; }
  .metric-v b { font-size: 30px; }
}


/* ============================================================
   v8 新闻图文 + 询盘左栏充实
   ============================================================ */
.news-grid { display: grid; grid-template-columns: 1.08fr .92fr; gap: 36px; align-items: start; }

.news-feature {
  display: flex; flex-direction: column; background: #fff;
  border: 1px solid var(--bd); overflow: hidden;
  transition: border-color .3s var(--ease), transform .3s var(--ease), box-shadow .3s var(--ease);
}
.news-feature:hover { border-color: #C9D2DD; transform: translateY(-3px); box-shadow: 0 18px 40px rgba(10, 22, 40, .09); }
.nf-pic { position: relative; aspect-ratio: 16 / 9; overflow: hidden; background: #EEF2F6; }
.nf-pic img { width: 100%; height: 100%; object-fit: cover; transition: transform .7s var(--ease); }
.news-feature:hover .nf-pic img { transform: scale(1.045); }
.nf-tag {
  position: absolute; left: 16px; top: 16px;
  background: var(--red); color: #fff; font-size: 12px; letter-spacing: .04em;
  padding: 4px 11px;
}
.nf-body { padding: 26px 30px 30px; }
.nf-body time { font-size: 12.5px; color: #94A1B0; font-variant-numeric: tabular-nums; }
.nf-body h3 { font-size: 22px; line-height: 1.45; margin: 10px 0 12px; }
.nf-body p { font-size: 14px; line-height: 1.8; color: var(--text-2); }
.nf-go { display: inline-flex; align-items: center; gap: 8px; margin-top: 20px; font-size: 14px; font-weight: 600; color: var(--ink); }
.nf-go i { font-style: normal; color: var(--red); transition: transform .25s var(--ease); }
.news-feature:hover .nf-go i { transform: translateX(5px); }

.news-side { border-top: 1px solid var(--bd); }
.news-row {
  display: grid; grid-template-columns: 176px 1fr; gap: 18px; align-items: center;
  padding: 20px 8px; border-bottom: 1px solid var(--bd);
  transition: background .25s var(--ease), padding-left .25s var(--ease);
}
.news-row:hover { background: #fff; padding-left: 16px; }
.nr-pic { aspect-ratio: 16 / 9; overflow: hidden; background: #EEF2F6; }
.nr-pic img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s var(--ease); }
.news-row:hover .nr-pic img { transform: scale(1.06); }
.news-row .news-meta { flex-direction: row; align-items: center; gap: 10px; }
.nr-body h3 {
  font-size: 16px; line-height: 1.5; margin-top: 7px;
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
  transition: color .25s var(--ease);
}
.news-row:hover .nr-body h3 { color: var(--red); }
.nr-body p {
  margin-top: 6px; font-size: 13px; line-height: 1.7; color: var(--text-2);
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
}

/* 询盘左栏 */
.contact-pts { margin-top: 26px; }
.contact-pts li {
  position: relative; padding: 20px 0 20px 54px;
  border-top: 1px solid rgba(255, 255, 255, .1);
  transition: padding-left .25s var(--ease);
}
.contact-pts li:hover { padding-left: 62px; }
.contact-pts .cp-no {
  position: absolute; left: 0; top: 21px;
  font-size: 11px; letter-spacing: .12em; color: var(--red-l);
  font-variant-numeric: tabular-nums;
}
.contact-pts b { display: block; font-size: 15.5px; color: #fff; font-weight: 600; transition: color .25s var(--ease); }
.contact-pts li:hover b { color: var(--gold); }
.contact-pts p { margin-top: 6px; font-size: 13px; line-height: 1.75; color: rgba(255, 255, 255, .52); }
.contact-cta { display: flex; gap: 12px; margin-top: 28px; flex-wrap: wrap; }
.contact-cta .btn { flex: 1 1 auto; }

@media (max-width: 1180px) {
  .news-grid { grid-template-columns: 1fr; gap: 28px; }
  .news-row { grid-template-columns: 200px 1fr; }
}

@media (max-width: 640px) {
  .nf-body { padding: 20px 20px 24px; }
  .nf-body h3 { font-size: 19px; }
  .news-row { grid-template-columns: 118px 1fr; gap: 14px; padding: 16px 0; }
  .news-row:hover { padding-left: 0; }
  .nr-body h3 { font-size: 14.5px; -webkit-line-clamp: 2; }
  .nr-body p { display: none; }
  .contact-pts li { padding: 16px 0 16px 44px; }
  .contact-pts li:hover { padding-left: 44px; }
  .contact-cta { flex-direction: column; }
  .contact-cta .btn { width: 100%; }
}


/* 专利墙（有数据才渲染） */
.pt-count { font-size: 14px; color: var(--text-2); }
.pt-count b { font-size: 26px; color: var(--ink); margin: 0 4px; font-variant-numeric: tabular-nums; }
.pt-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.pt-card {
  position: relative; padding: 30px 26px 26px; background: #fff;
  border: 1px solid var(--bd); border-left: 3px solid var(--red);
  transition: transform .3s var(--ease), box-shadow .3s var(--ease), border-color .3s var(--ease);
  overflow: hidden;
}
.pt-card:hover { transform: translateY(-4px); box-shadow: 0 16px 38px rgba(10, 22, 40, .1); border-color: #C9D2DD; }
.pt-type { font-size: 11px; letter-spacing: .1em; color: var(--red); }
.pt-card h3 { font-size: 16.5px; line-height: 1.55; margin: 12px 0 18px; min-height: 52px; }
.pt-meta { border-top: 1px solid var(--bd); padding-top: 14px; }
.pt-meta div { display: flex; gap: 12px; font-size: 12.5px; }
.pt-meta dt { color: var(--text-2); width: 46px; flex: none; }
.pt-meta dd { color: var(--ink); font-variant-numeric: tabular-nums; }
.pt-meta div + div { margin-top: 6px; }
.pt-note { margin-top: 28px; font-size: 12.5px; color: var(--text-2); }

@media (max-width: 900px) { .pt-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 640px) { .pt-grid { grid-template-columns: 1fr; } .pt-card h3 { min-height: 0; } }