/* ==========================================================================
   pages.css — 首页 / 关于我们 / 原料中心 / 案例中心 / 新闻资讯 / 联系我们
   ========================================================================== */

/* ==========================================================================
   首页 · 头图
   ========================================================================== */
.hero-home {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: calc(var(--nav-h) + 40px) 0 70px;
  overflow: hidden;
  background:
    radial-gradient(ellipse 58% 62% at 74% 44%, rgba(11, 99, 246, .09), transparent 68%),
    radial-gradient(ellipse 52% 56% at 12% 84%, rgba(74, 158, 255, .09), transparent 62%),
    linear-gradient(135deg, #FFFFFF 0%, #F2F8FF 52%, #E6F0FF 100%);
}
.hero-home::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(11, 99, 246, .04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(11, 99, 246, .04) 1px, transparent 1px);
  background-size: 68px 68px;
  mask-image: radial-gradient(ellipse 72% 72% at 50% 46%, #000 16%, transparent 80%);
  -webkit-mask-image: radial-gradient(ellipse 72% 72% at 50% 46%, #000 16%, transparent 80%);
  pointer-events: none;
}
.hero-video {
  position: absolute;
  inset: 0;
  width: 100%; height: 100%;
  object-fit: cover;
  opacity: .32;
  pointer-events: none;
}
/* 整屏底图（后台可配置）：默认不使用，设置 --hero-bg 即生效 */
.hero-bg {
  position: absolute;
  inset: 0;
  background: var(--hero-bg, none) center / cover no-repeat;
  opacity: .55;
  pointer-events: none;
  z-index: 0;
}
.hero-bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(100deg, rgba(255, 255, 255, .92) 0%, rgba(245, 250, 255, .72) 45%, rgba(232, 241, 255, .3) 100%);
}
.hero-inner {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 1.06fr 1fr;
  gap: clamp(24px, 4vw, 56px);
  align-items: center;
  width: 100%;
}
.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-en);
  font-size: 11.5px;
  font-weight: 700;
  letter-spacing: 3.4px;
  color: var(--blue);
  margin-bottom: 22px;
}
.hero-eyebrow::before {
  content: '';
  width: 26px; height: 1.5px;
  background: var(--blue);
  opacity: .5;
}
.hero-title {
  font-size: clamp(38px, 4.6vw, 70px);
  font-weight: 700;
  line-height: 1.12;
  letter-spacing: -1.6px;
  color: var(--ink);
}
.hero-title .grad {
  display: inline-block;
  background: linear-gradient(100deg, #0B63F6 0%, #4A9EFF 48%, #0A3D91 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.hero-title .light-line {
  display: block;
  font-size: .56em;
  font-weight: 600;
  letter-spacing: -.4px;
  color: var(--ink-2);
  margin-bottom: 6px;
}
.hero-sub {
  margin-top: 24px;
  font-size: clamp(15px, 1.2vw, 19px);
  color: var(--ink-2);
  line-height: 1.8;
  max-width: 480px;
}
.hero-btns { display: flex; gap: 14px; flex-wrap: wrap; margin-top: 38px; }
.hero-meta {
  margin-top: 42px;
  display: flex;
  gap: clamp(18px, 3vw, 42px);
  flex-wrap: wrap;
  padding-top: 24px;
  border-top: 1px solid rgba(11, 99, 246, .12);
  max-width: 470px;
}
.hero-meta div { font-size: 12.5px; color: var(--ink-3); letter-spacing: .3px; }
.hero-meta b {
  display: block;
  font-family: var(--font-en);
  font-size: 22px;
  font-weight: 700;
  color: var(--ink);
  letter-spacing: -.6px;
  margin-bottom: 2px;
}
.hero-meta b em { font-style: normal; font-size: .58em; color: var(--ink-2); margin-left: 3px; font-weight: 500; }
.hero-visual {
  position: relative;
  height: clamp(340px, 62vh, 600px);
  border-radius: 50%;
}
.hero-visual::before {
  content: '';
  position: absolute;
  inset: 8%;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(11, 99, 246, .16), transparent 68%);
  filter: blur(42px);
}
.hero-visual canvas { width: 100%; height: 100%; position: relative; }
.scroll-hint {
  position: absolute;
  left: 50%; bottom: 26px;
  transform: translateX(-50%);
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  font-family: var(--font-en);
  font-size: 10px;
  letter-spacing: 2.6px;
  color: var(--ink-3);
  animation: floatY 2.6s ease-in-out infinite;
}
.scroll-hint .mouse {
  width: 21px; height: 33px;
  border: 1.4px solid rgba(11, 99, 246, .3);
  border-radius: 12px;
  position: relative;
}
.scroll-hint .mouse::after {
  content: '';
  position: absolute;
  left: 50%; top: 7px;
  width: 3px; height: 6px;
  margin-left: -1.5px;
  border-radius: 2px;
  background: var(--blue);
  animation: scrollDot 1.9s ease-in-out infinite;
}
@keyframes scrollDot {
  0% { opacity: 0; transform: translateY(0); }
  35% { opacity: 1; }
  100% { opacity: 0; transform: translateY(11px); }
}

@media (max-width: 900px) {
  .hero-home { min-height: auto; padding: calc(var(--nav-h) + 56px) 0 66px; }
  .hero-inner { grid-template-columns: 1fr; gap: 26px; }
  .hero-visual { height: 300px; order: -1; }
  .hero-sub { margin-top: 18px; }
  .hero-btns { margin-top: 28px; }
  .hero-btns .btn { flex: 1 1 auto; }
  .hero-meta { margin-top: 30px; padding-top: 18px; gap: 18px 26px; }
  .scroll-hint { display: none; }
}

/* ==========================================================================
   首页 · 关于我们（底图叠加）
   ========================================================================== */
.about-band {
  position: relative;
  padding: clamp(84px, 11vw, 150px) 0;
  color: #fff;
  overflow: hidden;
  background:
    linear-gradient(115deg, rgba(4, 20, 44, .9) 0%, rgba(6, 32, 68, .78) 46%, rgba(10, 61, 145, .62) 100%),
    var(--about-bg, radial-gradient(ellipse at 70% 30%, #1C4C86, #071E3C 70%));
  background-size: var(--about-bg-size, cover);
  background-position: center;
}
.about-band::after {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, .045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, .045) 1px, transparent 1px);
  background-size: 72px 72px;
  mask-image: radial-gradient(ellipse 70% 80% at 50% 50%, #000 10%, transparent 82%);
  -webkit-mask-image: radial-gradient(ellipse 70% 80% at 50% 50%, #000 10%, transparent 82%);
  pointer-events: none;
}
.about-band .wrap { position: relative; z-index: 1; }
.about-band .kicker { color: #8FC0FF; }
.about-band .sec-title { color: #fff; }
.about-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  max-width: 760px;
  margin: 0 0 clamp(40px, 5vw, 60px);
}
.about-stat {
  padding-right: clamp(14px, 3vw, 40px);
  position: relative;
}
.about-stat + .about-stat { padding-left: clamp(14px, 3vw, 40px); }
.about-stat + .about-stat::before {
  content: '';
  position: absolute;
  left: 0; top: 6px; bottom: 6px;
  width: 1px;
  background: linear-gradient(180deg, transparent, rgba(255, 255, 255, .26), transparent);
}
.about-stat b {
  display: block;
  font-family: var(--font-en);
  font-size: clamp(34px, 3.6vw, 54px);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -1.6px;
  color: #fff;
}
.about-stat b em { font-style: normal; font-size: .36em; font-weight: 500; letter-spacing: 0; color: rgba(255, 255, 255, .7); margin-left: 5px; }
.about-stat span { display: block; margin-top: 12px; font-size: 13px; color: rgba(255, 255, 255, .62); letter-spacing: .3px; }
.about-band-body { max-width: 880px; }
.about-lead {
  font-size: clamp(19px, 1.8vw, 27px);
  font-weight: 600;
  line-height: 1.5;
  letter-spacing: -.3px;
  margin-bottom: 24px;
  background: linear-gradient(96deg, #FFFFFF 10%, #A9CEFF 90%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.about-band p.txt {
  font-size: 14.8px;
  line-height: 1.95;
  color: rgba(255, 255, 255, .74);
  margin-bottom: 16px;
}
.about-sign {
  margin-top: 22px;
  font-size: 14px;
  font-style: italic;
  letter-spacing: .4px;
  color: #9CC6FF;
  text-align: right;
}
.about-band .link-arrow {
  margin-top: 30px;
  color: #fff;
  border-bottom-color: rgba(255, 255, 255, .32);
}
.about-band .link-arrow:hover { color: #fff; border-bottom-color: #fff; }

@media (max-width: 700px) {
  .about-stats { grid-template-columns: 1fr; gap: 22px; }
  .about-stat { padding: 0 !important; }
  .about-stat + .about-stat::before { display: none; }
  .about-stat + .about-stat { padding-top: 22px; border-top: 1px solid rgba(255, 255, 255, .14); }
}

/* ==========================================================================
   首页 · 核心原料（左文右图）
   ========================================================================== */
.mat-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(30px, 5vw, 76px);
  align-items: center;
}
.mat-tabs { display: flex; flex-direction: column; gap: 6px; margin-bottom: 26px; }
.mat-panel { display: none; }
.mat-panel.active { display: block; animation: panelIn .45s var(--ease-out) both; }
@keyframes panelIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: none; }
}
.mat-tab {
  display: flex;
  align-items: center;
  gap: 14px;
  width: 100%;
  text-align: left;
  padding: 16px 18px;
  border: none;
  border-left: 3px solid transparent;
  border-radius: 11px;
  background: transparent;
  color: var(--ink-2);
  font-size: clamp(16px, 1.3vw, 19px);
  font-weight: 500;
  cursor: pointer;
  transition: all .3s var(--ease);
}
.mat-tab:hover { background: var(--blue-soft); color: var(--ink); }
.mat-tab.active { background: var(--blue-soft); border-left-color: var(--blue); color: var(--ink); }
.mat-tab .dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  border: 1.6px solid currentColor;
  flex-shrink: 0;
  transition: all .3s var(--ease);
}
.mat-tab.active .dot { background: var(--blue); border-color: var(--blue); box-shadow: 0 0 0 4px rgba(11, 99, 246, .14); }
.mat-desc { font-size: 14.6px; line-height: 1.95; color: var(--ink-2); min-height: 128px; }
.mat-tags { display: flex; flex-wrap: wrap; gap: 9px; margin: 20px 0 4px; }
.mat-tags span {
  font-size: 12.5px;
  padding: 6px 14px;
  border-radius: 20px;
  background: var(--blue-soft);
  color: var(--blue);
  border: 1px solid rgba(11, 99, 246, .16);
}
.mat-visuals { position: relative; }
.mat-art {
  display: none;
  position: relative;
  aspect-ratio: 1 / 1;
  max-height: 460px;
  border-radius: var(--radius-l);
  border: 1px solid var(--line);
  background:
    radial-gradient(circle at 50% 44%, rgba(11, 99, 246, .1), transparent 62%),
    linear-gradient(150deg, #FBFDFF, #EDF5FF);
  overflow: hidden;
  align-items: center;
  justify-content: center;
}
.mat-art.active { display: flex; animation: panelIn .5s var(--ease-out) both; }
.mat-art::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(11, 99, 246, .045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(11, 99, 246, .045) 1px, transparent 1px);
  background-size: 38px 38px;
  mask-image: radial-gradient(circle at center, #000 20%, transparent 78%);
  -webkit-mask-image: radial-gradient(circle at center, #000 20%, transparent 78%);
}
.mat-art svg { width: 78%; height: 78%; position: relative; z-index: 1; animation: breathe 5.5s ease-in-out infinite alternate; }
.mat-art .mat-label {
  position: absolute;
  left: 22px; top: 22px;
  z-index: 2;
  font-family: var(--font-en);
  font-size: 11px;
  letter-spacing: 2.4px;
  color: var(--blue);
  background: rgba(255, 255, 255, .8);
  border: 1px solid rgba(11, 99, 246, .18);
  border-radius: 20px;
  padding: 6px 13px;
}

@media (max-width: 900px) {
  .mat-grid { grid-template-columns: 1fr; gap: 32px; }
  .mat-desc { min-height: auto; }
  .mat-art { max-height: 340px; }
}

/* ==========================================================================
   首页 · 应用中心
   ========================================================================== */
.apps-sec {
  position: relative;
  padding: clamp(74px, 9vw, 122px) 0 clamp(56px, 7vw, 96px);
  background: linear-gradient(165deg, #D8E9F8 0%, #E7F2FB 46%, #DEEBF7 100%);
  overflow: hidden;
}
.apps-sec::before,
.apps-sec::after {
  content: '';
  position: absolute;
  pointer-events: none;
  transform: rotate(-17deg);
}
.apps-sec::before {
  top: -34%; left: -20%;
  width: 62%; height: 170%;
  background: linear-gradient(135deg, rgba(255, 255, 255, .58), rgba(255, 255, 255, .04));
}
.apps-sec::after {
  top: -32%; right: -16%;
  width: 48%; height: 168%;
  background: linear-gradient(135deg, rgba(255, 255, 255, .44), rgba(255, 255, 255, .03));
}
.apps-sec .wrap { position: relative; z-index: 1; }
.apps-stage { position: relative; }
.apps-panel {
  display: none;
  grid-template-columns: 1fr 1.1fr;
  gap: clamp(26px, 4vw, 58px);
  align-items: center;
  min-height: clamp(340px, 44vh, 480px);
}
.apps-panel.active { display: grid; animation: panelIn .5s var(--ease-out) both; }
.apps-copy { max-width: 440px; }
.apps-kicker {
  display: inline-block;
  font-family: var(--font-en);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 2.4px;
  text-transform: uppercase;
  color: var(--blue);
  margin-bottom: 10px;
}
.apps-art img { width: 100%; height: auto; border-radius: 12px; }
.apps-title { font-size: clamp(28px, 3vw, 46px); font-weight: 600; letter-spacing: -.7px; line-height: 1.2; margin-bottom: 14px; }
.apps-sub { font-size: clamp(14px, 1.1vw, 17px); color: var(--blue); font-weight: 500; margin-bottom: 18px; }
.apps-desc { font-size: 14.4px; color: var(--ink-2); line-height: 1.95; margin: 0 0 30px; }
.apps-copy .fade { transition: opacity .3s var(--ease), transform .3s var(--ease); }
.apps-copy.switching .fade { opacity: 0; transform: translateY(10px); }

.apps-showcase {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: clamp(300px, 40vh, 440px);
}
.apps-art {
  position: relative;
  z-index: 2;
  width: clamp(250px, 28vw, 390px);
  margin-bottom: 4px;
  transition: opacity .3s var(--ease), transform .3s var(--ease);
}
.apps-art.switching { opacity: 0; transform: translateY(10px); }
.apps-art svg { width: 100%; height: auto; }
.apps-art img {
  width: 100%;
  height: auto;
  display: block;
  border-radius: 18px;
  box-shadow: 0 30px 60px rgba(10, 61, 145, .18);
}
.apps-podium {
  position: relative;
  width: clamp(210px, 25vw, 330px);
  height: clamp(110px, 13vw, 164px);
  background: linear-gradient(180deg, #FFFFFF 0%, #EEF5FC 100%);
  border-radius: 12px 12px 50% 50% / 12px 12px 22% 22%;
  box-shadow: 0 30px 60px rgba(11, 99, 246, .14), inset 0 -8px 18px rgba(11, 99, 246, .03);
}
.apps-podium::before {
  content: '';
  position: absolute;
  top: -11px; left: 0; right: 0;
  height: 22px;
  background: #fff;
  border-radius: 50%;
  box-shadow: inset 0 -4px 8px rgba(11, 99, 246, .06);
}
.apps-tabs {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: clamp(12px, 2vw, 30px);
  margin-top: clamp(34px, 5vw, 64px);
}
.apps-tab {
  background: transparent;
  border: none;
  cursor: pointer;
  padding: 0;
  text-align: center;
  opacity: .52;
  transition: opacity .32s var(--ease), transform .32s var(--ease);
  display: flex;
  flex-direction: column;
  align-items: center;
}
.apps-tab:hover { opacity: .82; transform: translateY(-3px); }
.apps-tab.active { opacity: 1; }
.apps-tab-art {
  width: 100%;
  max-width: 180px;
  height: 104px;
  border-radius: 14px;
  background: rgba(255, 255, 255, .62);
  border: 1px solid rgba(255, 255, 255, .8);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all .32s var(--ease);
}
.apps-tab.active .apps-tab-art {
  background: #fff;
  border-color: #fff;
  box-shadow: 0 16px 36px rgba(11, 99, 246, .16);
}
.apps-tab-art svg { width: 52px; height: 52px; color: var(--blue); }
.apps-tab-label { margin-top: 15px; font-size: 14px; font-weight: 500; color: var(--ink); transition: color .3s; }
.apps-tab.active .apps-tab-label { color: var(--blue); }

@media (max-width: 900px) {
  .apps-panel { grid-template-columns: 1fr; gap: 30px; text-align: center; min-height: auto; }
  .apps-copy { max-width: 100%; margin: 0 auto; }
  .apps-showcase { min-height: 268px; }
  .apps-podium { width: 200px; height: 104px; }
  .apps-art { width: min(82vw, 330px); }
  .apps-tabs { grid-template-columns: repeat(2, 1fr); gap: 18px; }
}
@media (max-width: 520px) {
  .apps-tab-art { height: 88px; }
}

/* ==========================================================================
   首页 · 知识中心
   ========================================================================== */
.kn-lead { max-width: 820px; margin: 0 auto 30px; text-align: center; color: var(--ink-2); font-size: 15px; line-height: 1.9; }
.kn-lead b { color: var(--blue); font-weight: 500; }
.kn-nav { display: flex; justify-content: center; flex-wrap: wrap; gap: 8px; margin-bottom: clamp(30px, 4vw, 46px); }
.kn-nav button {
  padding: 9px 19px;
  border-radius: 22px;
  border: 1px solid var(--line);
  background: transparent;
  color: var(--ink-2);
  font-size: 13.6px;
  cursor: pointer;
  white-space: nowrap;
  transition: all .26s var(--ease);
}
.kn-nav button:hover { background: var(--blue-soft); color: var(--blue); border-color: rgba(11, 99, 246, .2); }
.kn-nav button.active { background: var(--blue); border-color: var(--blue); color: #fff; font-weight: 600; }
.kn-grid { display: grid; grid-template-columns: 1.1fr 1fr; gap: clamp(22px, 3.4vw, 46px); align-items: start; }
.kn-feature {
  display: block;
  text-decoration: none;
  color: inherit;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
  overflow: hidden;
  box-shadow: var(--shadow-s);
  transition: all .36s var(--ease);
}
.kn-feature:hover { transform: translateY(-5px); box-shadow: var(--shadow-hover); border-color: rgba(11, 99, 246, .28); }
.kn-feature .ph { aspect-ratio: 16 / 10; border-radius: 0; }
.kn-feature-body { padding: clamp(20px, 2.4vw, 28px); }
.kn-badge {
  display: inline-block;
  font-size: 11.5px;
  letter-spacing: 1.4px;
  color: var(--blue);
  background: var(--blue-soft);
  border-radius: 20px;
  padding: 5px 12px;
  margin-bottom: 12px;
}
.kn-feature-body h3 { font-size: clamp(17px, 1.5vw, 21px); font-weight: 600; line-height: 1.5; color: var(--ink); transition: color .28s; }
.kn-feature:hover .kn-feature-body h3 { color: var(--blue); }
.kn-feature-body p {
  margin-top: 10px;
  font-size: 13.6px;
  color: var(--ink-2);
  line-height: 1.8;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.kn-meta { display: flex; align-items: center; gap: 11px; margin-top: 15px; font-size: 12.4px; color: var(--ink-3); }
.kn-meta i { width: 3px; height: 3px; border-radius: 50%; background: currentColor; opacity: .6; }
.kn-list { display: flex; flex-direction: column; }
.kn-item {
  display: flex;
  gap: 16px;
  padding: 18px 0;
  border-bottom: 1px solid var(--line-soft);
  text-decoration: none;
  color: inherit;
  align-items: flex-start;
  transition: all .28s var(--ease);
}
.kn-item:first-child { padding-top: 0; }
.kn-item:last-child { border-bottom: none; padding-bottom: 0; }
.kn-item-txt { flex: 1; min-width: 0; }
.kn-item h4 { font-size: 15.2px; font-weight: 500; line-height: 1.55; color: var(--ink); transition: color .26s; }
.kn-item:hover h4 { color: var(--blue); }
.kn-item p {
  margin-top: 6px;
  font-size: 12.8px;
  color: var(--ink-3);
  line-height: 1.7;
  display: -webkit-box;
  -webkit-line-clamp: 1;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.kn-item .kn-date { display: block; margin-top: 8px; font-size: 12px; color: var(--ink-3); }
.kn-thumb {
  width: 104px; height: 70px;
  flex-shrink: 0;
  border-radius: 9px;
  overflow: hidden;
  border: 1px solid var(--line);
  background: linear-gradient(135deg, #E8F1FF, #D6E8FF);
  position: relative;
}
.kn-thumb::after {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 34% 36%, rgba(11, 99, 246, .18), transparent 62%);
}
.kn-empty { display: none; padding: 40px 0; text-align: center; color: var(--ink-3); font-size: 14px; }

@media (max-width: 900px) {
  .kn-grid { grid-template-columns: 1fr; }
  .kn-nav { justify-content: flex-start; flex-wrap: nowrap; overflow-x: auto; padding-bottom: 8px; scrollbar-width: none; }
  .kn-nav::-webkit-scrollbar { display: none; }
}

/* ==========================================================================
   关于我们
   ========================================================================== */
.about-hero .hero-label {
  display: block;
  font-family: var(--font-en);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 4px;
  color: var(--blue);
  margin-bottom: 18px;
}
.hero-deco {
  position: absolute;
  right: clamp(-90px, -3vw, 0px);
  top: 50%;
  width: min(44vw, 520px);
  transform: translateY(-50%);
  opacity: .55;
  pointer-events: none;
  z-index: 0;
}
.hero-deco svg { animation: spinSlow 160s linear infinite; }
@media (max-width: 900px) {
  .hero-deco { width: 320px; right: -140px; opacity: .3; }
}
.about-hero h1 { font-size: clamp(36px, 4.6vw, 64px); }
.about-hero h1 span { color: var(--blue); }
.about-hero .tagline {
  margin-top: 16px;
  font-size: clamp(16px, 1.5vw, 22px);
  font-weight: 500;
  color: var(--ink);
  letter-spacing: -.2px;
}
.about-intro { display: grid; grid-template-columns: 1.08fr .92fr; gap: clamp(28px, 5vw, 68px); align-items: center; }
.about-intro p { font-size: 14.8px; line-height: 1.95; color: var(--ink-2); margin-bottom: 16px; }
.about-intro p strong { color: var(--ink); font-weight: 600; }
.about-intro p .hl { color: var(--blue); font-weight: 500; }
.about-visual { position: relative; }
.about-visual .about-img {
  width: 100%;
  aspect-ratio: 4 / 3.4;
  object-fit: cover;
  border-radius: var(--radius-l);
  box-shadow: var(--shadow);
  display: block;
}
.about-visual .ph { aspect-ratio: 4 / 3.4; border-radius: var(--radius-l); box-shadow: var(--shadow); }
.float-badge {
  position: absolute;
  background: rgba(255, 255, 255, .96);
  border: 1px solid var(--line);
  border-radius: 13px;
  padding: 13px 17px;
  box-shadow: 0 16px 36px rgba(11, 99, 246, .14);
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
}
.float-badge .n { font-family: var(--font-en); font-size: 22px; font-weight: 700; color: var(--blue); line-height: 1; letter-spacing: -.8px; }
.float-badge .n em { font-style: normal; font-size: 11px; color: var(--ink-2); font-weight: 500; margin-left: 3px; }
.float-badge .t { margin-top: 6px; font-size: 12px; color: var(--ink-2); }
.float-badge.b1 { left: -14px; bottom: 34px; }
.float-badge.b2 { right: -8px; top: 32px; }

.stat-bar {
  margin-top: clamp(40px, 5vw, 62px);
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
  box-shadow: var(--shadow-s);
  overflow: hidden;
}
.stat-bar > div { padding: 24px 20px; text-align: center; position: relative; }
.stat-bar > div + div::before {
  content: '';
  position: absolute;
  left: 0; top: 24%; bottom: 24%;
  width: 1px;
  background: var(--line-soft);
}
.stat-bar b { display: block; font-family: var(--font-en); font-size: clamp(24px, 2.4vw, 34px); font-weight: 700; color: var(--blue); letter-spacing: -1px; line-height: 1.1; }
.stat-bar b em { font-style: normal; font-size: .48em; font-weight: 500; margin-left: 3px; color: var(--ink-2); letter-spacing: 0; }
.stat-bar span { display: block; margin-top: 9px; font-size: 12.5px; color: var(--ink-2); }

/* 核心指标卡 */
.metrics { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.metric {
  position: relative;
  background: #fff;
  border: 1px solid rgba(11, 99, 246, .16);
  border-radius: 14px;
  padding: 26px 22px 24px;
  overflow: hidden;
  transition: all .34s var(--ease);
}
.metric::before {
  content: '';
  position: absolute;
  left: 0; top: 0;
  width: 3px; height: 0;
  background: linear-gradient(180deg, var(--blue), var(--blue-light));
  transition: height .42s var(--ease-out);
}
.metric:hover { transform: translateY(-4px); box-shadow: var(--shadow); border-color: rgba(11, 99, 246, .3); }
.metric:hover::before { height: 100%; }
.metric b { display: block; font-family: var(--font-en); font-size: clamp(26px, 2.6vw, 36px); font-weight: 700; color: var(--ink); letter-spacing: -1.2px; line-height: 1.1; }
.metric b em { font-style: normal; font-size: .42em; color: var(--blue); margin-left: 4px; font-weight: 600; letter-spacing: 0; }
.metric span { display: block; margin-top: 12px; font-size: 12.8px; color: var(--ink-2); line-height: 1.65; }
.metric .mtag {
  display: inline-block;
  margin-bottom: 14px;
  font-size: 11px;
  letter-spacing: 1.6px;
  color: var(--blue);
  text-transform: uppercase;
}

@media (max-width: 900px) {
  .about-intro { grid-template-columns: 1fr; }
  .about-visual { order: -1; }
  .float-badge.b1 { left: 8px; bottom: 14px; }
  .float-badge.b2 { right: 8px; top: 14px; }
  .stat-bar { grid-template-columns: repeat(2, 1fr); }
  .stat-bar > div:nth-child(3)::before,
  .stat-bar > div:nth-child(1)::before { display: none; }
  .metrics { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 520px) {
  .metrics { grid-template-columns: 1fr; }
}

/* 文化 */
.culture-anchors {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 14px;
  margin-top: 18px;
  font-size: 14px;
  letter-spacing: 1.4px;
  color: var(--ink-2);
}
.culture-anchors span { transition: color .25s; }
.culture-anchors span:hover { color: var(--blue); }
.culture-anchors i { color: var(--blue); font-style: normal; opacity: .5; }
.culture-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; }
.culture-col { display: flex; flex-direction: column; gap: 14px; }
.culture-col:nth-child(2), .culture-col:nth-child(4) { margin-top: 34px; }
.culture-card {
  border-radius: var(--radius);
  overflow: hidden;
  position: relative;
  min-height: 218px;
  transition: all .34s var(--ease);
}
.culture-card.img { border: 1px solid var(--line); }
.culture-card.img .ph { height: 100%; min-height: 218px; border-radius: 0; }
.culture-card.img:hover { box-shadow: var(--shadow); transform: translateY(-3px); }
.culture-card.text {
  background: #fff;
  border: 1px solid var(--line);
  padding: 24px 22px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}
.culture-card.text:hover { border-color: rgba(11, 99, 246, .28); box-shadow: var(--shadow-s); }
.culture-card .clabel {
  font-family: var(--font-en);
  font-size: 11px;
  letter-spacing: 2px;
  color: var(--blue);
  margin-bottom: 12px;
  text-transform: uppercase;
}
.culture-card .cvalue { font-size: clamp(15px, 1.25vw, 18px); font-weight: 600; line-height: 1.6; color: var(--ink); letter-spacing: -.2px; }
.culture-card .csmall { display: block; margin-top: 8px; font-size: 12.5px; font-weight: 400; color: var(--ink-2); line-height: 1.7; }
.culture-card.text::after {
  content: '';
  position: absolute;
  right: -40px; bottom: -40px;
  width: 120px; height: 120px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(11, 99, 246, .1), transparent 70%);
}

@media (max-width: 1080px) {
  .culture-grid { grid-template-columns: repeat(2, 1fr); }
  .culture-col:nth-child(2), .culture-col:nth-child(4) { margin-top: 0; }
}
@media (max-width: 560px) {
  .culture-grid { grid-template-columns: 1fr; }
  .culture-col { flex-direction: column; }
}

/* 历史 */
.history {
  position: relative;
  min-height: 620px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(160deg, #04142C 0%, #07203F 48%, #0A2C5C 100%);
  overflow: hidden;
  padding: clamp(70px, 9vw, 110px) 0 clamp(100px, 12vw, 160px);
}
.history::before {
  content: '';
  position: absolute;
  inset: 0;
  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: 76px 76px;
  mask-image: radial-gradient(ellipse 65% 70% at 50% 40%, #000 10%, transparent 80%);
  -webkit-mask-image: radial-gradient(ellipse 65% 70% at 50% 40%, #000 10%, transparent 80%);
}
.history-watermark {
  position: absolute;
  left: 50%; top: 52%;
  transform: translate(-50%, -50%);
  font-family: var(--font-en);
  font-size: clamp(140px, 26vw, 340px);
  font-weight: 800;
  letter-spacing: -10px;
  line-height: 1;
  color: rgba(120, 175, 255, .07);
  pointer-events: none;
  transition: opacity .3s var(--ease);
  user-select: none;
}
.history-center { position: relative; z-index: 2; text-align: center; max-width: 760px; padding: 0 var(--pad); }
.history-center .kicker { color: #7FB2FF; }
.history-center h2 { font-size: clamp(26px, 2.8vw, 40px); font-weight: 600; color: #fff; letter-spacing: -.6px; }
.history-phase {
  margin-top: 22px;
  font-size: clamp(30px, 3.4vw, 52px);
  font-weight: 700;
  letter-spacing: 6px;
  background: linear-gradient(96deg, #FFFFFF 10%, #8FC0FF 90%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  transition: opacity .26s var(--ease), transform .26s var(--ease);
}
.history-desc {
  margin-top: 18px;
  font-size: clamp(14px, 1.15vw, 16px);
  line-height: 1.95;
  color: rgba(255, 255, 255, .7);
  min-height: 62px;
  transition: opacity .26s var(--ease), transform .26s var(--ease);
}
.history-phase.switching, .history-desc.switching { opacity: 0; transform: translateY(8px); }
.history-arrow {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  z-index: 3;
  width: 46px; height: 46px;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, .2);
  background: rgba(255, 255, 255, .05);
  color: rgba(255, 255, 255, .8);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all .28s var(--ease);
}
.history-arrow:hover { background: rgba(255, 255, 255, .14); border-color: rgba(255, 255, 255, .4); color: #fff; }
.history-arrow.prev { left: clamp(14px, 4vw, 60px); }
.history-arrow.next { right: clamp(14px, 4vw, 60px); }
.history-timeline {
  position: absolute;
  left: 0; right: 0; bottom: clamp(42px, 6vw, 64px);
  z-index: 2;
  padding: 0 clamp(30px, 8vw, 130px);
}
.timeline-line {
  position: absolute;
  left: clamp(30px, 8vw, 130px);
  right: clamp(30px, 8vw, 130px);
  top: 0;
  height: 1px;
  background: linear-gradient(90deg, rgba(255, 255, 255, 0), rgba(255, 255, 255, .32) 12%, rgba(255, 255, 255, .32) 88%, rgba(255, 255, 255, 0));
}
.timeline-track { display: flex; justify-content: space-between; position: relative; padding-top: 16px; }
.tl-node { display: flex; flex-direction: column; align-items: center; gap: 16px; background: none; border: none; cursor: pointer; padding: 0; flex: 1; }
.tl-dot {
  width: 13px; height: 13px;
  border-radius: 50%;
  border: 1.5px solid rgba(255, 255, 255, .38);
  background: rgba(4, 20, 44, .9);
  transition: all .3s var(--ease);
}
.tl-node:hover .tl-dot { border-color: #fff; }
.tl-node.active .tl-dot {
  background: var(--blue-light);
  border-color: #fff;
  box-shadow: 0 0 0 5px rgba(74, 158, 255, .22);
}
.tl-year { font-family: var(--font-en); font-size: 13px; letter-spacing: 1.2px; color: rgba(255, 255, 255, .42); transition: color .3s; }
.tl-node.active .tl-year { color: #fff; font-weight: 600; }

@media (max-width: 700px) {
  .history { min-height: 560px; padding-bottom: 130px; }
  .history-arrow { display: none; }
  .history-timeline { padding: 0 22px; }
  .timeline-line { left: 22px; right: 22px; }
  .tl-year { font-size: 11px; letter-spacing: .4px; }
  .tl-node { gap: 12px; }
}

/* 研发实力 */
.tech-grid { display: grid; grid-template-columns: 1.05fr .95fr; gap: clamp(28px, 4.4vw, 64px); align-items: center; }
.tech-text .lead { font-size: clamp(16px, 1.4vw, 20px); font-weight: 600; color: var(--ink); line-height: 1.7; margin-bottom: 18px; }
.tech-text p { font-size: 14.6px; color: var(--ink-2); line-height: 1.95; margin-bottom: 14px; }
.tech-visual .ph { aspect-ratio: 4 / 3; border-radius: var(--radius-l); box-shadow: var(--shadow); }
.perf-head { margin: clamp(40px, 5vw, 62px) 0 22px; }
.perf-head h3 { font-size: clamp(19px, 1.9vw, 24px); font-weight: 600; letter-spacing: -.3px; }
.perf-head p { margin-top: 8px; font-size: 13.5px; color: var(--ink-2); }
.perf-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; }
.perf-card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 22px 20px;
  transition: all .32s var(--ease);
}
.perf-card:hover { border-color: rgba(11, 99, 246, .3); box-shadow: var(--shadow-s); transform: translateY(-3px); }
.perf-card b { display: block; font-family: var(--font-en); font-size: clamp(21px, 2.1vw, 29px); font-weight: 700; letter-spacing: -1px; color: var(--blue); line-height: 1.1; }
.perf-card b em { font-style: normal; font-size: .44em; margin-left: 3px; letter-spacing: 0; }
.perf-card .plabel { margin-top: 12px; font-size: 12.8px; color: var(--ink); font-weight: 500; line-height: 1.55; }
.perf-card .pdesc { margin-top: 5px; font-size: 12.4px; color: var(--ink-2); line-height: 1.6; }

@media (max-width: 900px) {
  .tech-grid { grid-template-columns: 1fr; }
  .tech-visual { order: -1; }
  .perf-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 480px) {
  .perf-grid { grid-template-columns: 1fr; }
}

/* 团队（按文档要求暂时隐藏） */
.team-grid { display: grid; grid-template-columns: 1.1fr .9fr; gap: clamp(28px, 4vw, 56px); align-items: center; }
.team-card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 26px; box-shadow: var(--shadow-s); }
.team-card .avatar { width: 52px; height: 52px; border-radius: 50%; background: var(--blue-soft); color: var(--blue); display: flex; align-items: center; justify-content: center; font-weight: 700; }
.team-card h3 { font-size: 19px; margin-top: 14px; }
.team-card .role { margin-top: 4px; font-size: 13px; color: var(--blue); }
.team-card p { margin-top: 12px; font-size: 13.5px; color: var(--ink-2); line-height: 1.85; }
.team-stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; margin-top: 16px; }
.team-stats div { background: var(--bg-soft); border-radius: 10px; padding: 14px; text-align: center; }
.team-stats b { display: block; font-size: 20px; color: var(--blue); }
.team-stats span { font-size: 11.5px; color: var(--ink-2); }

/* 证书跑马灯 */
.cert-marquee { margin-top: clamp(24px, 3vw, 36px); overflow: hidden; position: relative; }
.cert-marquee::before, .cert-marquee::after {
  content: '';
  position: absolute;
  top: 0; bottom: 0;
  width: clamp(40px, 8vw, 120px);
  z-index: 2;
  pointer-events: none;
}
.cert-marquee::before { left: 0; background: linear-gradient(90deg, #F5F9FF, transparent); }
.cert-marquee::after { right: 0; background: linear-gradient(270deg, #F5F9FF, transparent); }
.marquee-track { display: flex; gap: 18px; width: max-content; animation: marquee 46s linear infinite; }
.cert-marquee:hover .marquee-track { animation-play-state: paused; }
@keyframes marquee { from { transform: translateX(0); } to { transform: translateX(-50%); } }
.cert-item {
  width: clamp(200px, 21vw, 260px);
  flex-shrink: 0;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 12px;
  cursor: zoom-in;
  transition: all .3s var(--ease);
}
.cert-item:hover { border-color: rgba(11, 99, 246, .3); box-shadow: var(--shadow); transform: translateY(-4px); }
.cert-item .ph { display: none; }
.cert-frame {
  aspect-ratio: 3 / 4;
  border-radius: 8px;
  overflow: hidden;
  background: #F6FAFF;
}
.cert-frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.cert-item h4 { margin-top: 11px; font-size: 12.8px; font-weight: 500; color: var(--ink-2); text-align: center; line-height: 1.5; }

.lightbox {
  position: fixed;
  inset: 0;
  z-index: 1200;
  background: rgba(4, 12, 28, .9);
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 40px 20px;
  opacity: 0;
  pointer-events: none;
  transition: opacity .3s var(--ease);
}
.lightbox.open { opacity: 1; pointer-events: auto; }
.lightbox-inner { max-width: min(560px, 90vw); text-align: center; }
.lightbox-inner .cert-large {
  width: 100%;
  aspect-ratio: 3 / 4;
  max-height: 72vh;
  border-radius: 10px;
  overflow: hidden;
  background: linear-gradient(150deg, #F4F9FF, #E4F0FB);
  display: flex;
  align-items: center;
  justify-content: center;
}
.lightbox-inner .cert-large svg { width: 62%; opacity: .5; }
.lightbox-inner .cert-large .cert-frame { width: 100%; height: 100%; }
.lightbox-caption { margin-top: 16px; color: rgba(255, 255, 255, .8); font-size: 13.5px; }
.lightbox button {
  position: absolute;
  width: 44px; height: 44px;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, .2);
  background: rgba(255, 255, 255, .08);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all .26s;
}
.lightbox button:hover { background: rgba(255, 255, 255, .2); }
.lightbox .lb-close { top: 24px; right: 24px; }
.lightbox .lb-prev { left: 3vw; top: 50%; transform: translateY(-50%); }
.lightbox .lb-next { right: 3vw; top: 50%; transform: translateY(-50%); }

/* 合作方 */
.partner-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; }
.partner-item {
  height: 116px;
  border: 1px solid var(--line);
  border-radius: 13px;
  background: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--ink-3);
  font-size: 14px;
  letter-spacing: .6px;
  transition: all .3s var(--ease);
  text-decoration: none;
}
.partner-item:hover { border-color: rgba(11, 99, 246, .3); color: var(--blue); box-shadow: var(--shadow-s); transform: translateY(-3px); }
.partner-item img { max-width: 78%; max-height: 66px; width: auto; object-fit: contain; }
.partner-item span { opacity: .8; }
@media (max-width: 900px) { .partner-grid { grid-template-columns: repeat(2, 1fr); } }

/* CTA */
.cta-band {
  position: relative;
  padding: clamp(66px, 8vw, 104px) 0;
  background:
    radial-gradient(ellipse 70% 90% at 80% 10%, rgba(11, 99, 246, .16), transparent 62%),
    linear-gradient(150deg, #F7FBFF 0%, #EAF2FF 100%);
  overflow: hidden;
  text-align: center;
}
.cta-band::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(11, 99, 246, .045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(11, 99, 246, .045) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(ellipse 70% 80% at 50% 50%, #000 10%, transparent 80%);
  -webkit-mask-image: radial-gradient(ellipse 70% 80% at 50% 50%, #000 10%, transparent 80%);
}
.cta-band .wrap { position: relative; z-index: 1; }
.cta-band .kicker { margin-bottom: 18px; }
.cta-title {
  font-size: clamp(25px, 2.9vw, 42px);
  font-weight: 600;
  line-height: 1.42;
  letter-spacing: -.6px;
  max-width: 900px;
  margin: 0 auto;
}
.cta-title .grad {
  background: linear-gradient(100deg, #0B63F6, #4A9EFF);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.cta-desc { margin: 22px auto 0; max-width: 680px; font-size: 14.6px; color: var(--ink-2); line-height: 1.9; }
.cta-btns { margin-top: 34px; display: flex; justify-content: center; gap: 14px; flex-wrap: wrap; }

/* ==========================================================================
   原料中心
   ========================================================================== */
.mat-hero { text-align: center; }
.mat-hero .hero-btns { justify-content: center; }
.mat-hero .en {
  display: block;
  font-family: var(--font-en);
  font-size: clamp(38px, 6vw, 84px);
  font-weight: 800;
  letter-spacing: 8px;
  line-height: 1;
  margin-bottom: 18px;
  background: linear-gradient(100deg, #0B63F6, #4A9EFF 60%, #0A3D91);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.mat-hero .cn {
  font-size: clamp(17px, 1.7vw, 24px);
  font-weight: 500;
  letter-spacing: 8px;
  color: var(--ink);
  margin-bottom: 20px;
}
.mat-hero p { max-width: 680px; margin: 0 auto; color: var(--ink-2); font-size: 15px; line-height: 1.9; }

.pain-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.pain-card {
  position: relative;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
  padding: 28px 26px 24px;
  overflow: hidden;
  transition: all .34s var(--ease);
}
.pain-card::after {
  content: '';
  position: absolute;
  right: -60px; top: -60px;
  width: 170px; height: 170px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(11, 99, 246, .1), transparent 70%);
  transition: transform .5s var(--ease-out);
}
.pain-card:hover { transform: translateY(-5px); border-color: rgba(11, 99, 246, .3); box-shadow: var(--shadow); }
.pain-card:hover::after { transform: scale(1.25); }
.pain-top { display: flex; align-items: center; justify-content: space-between; margin-bottom: 20px; }
.pain-num { font-family: var(--font-en); font-size: 13px; font-weight: 700; letter-spacing: 2px; color: var(--blue); }
.pain-cat { font-size: 11.5px; letter-spacing: 1.6px; color: var(--ink-3); text-transform: uppercase; }
.pain-card h3 { font-size: clamp(19px, 1.7vw, 23px); font-weight: 600; line-height: 1.5; letter-spacing: -.2px; }
.pain-card h3 span { display: block; }
.pain-card p { margin-top: 14px; font-size: 13.6px; color: var(--ink-2); line-height: 1.85; }
.pain-foot {
  margin-top: 22px;
  padding-top: 16px;
  border-top: 1px solid var(--line-soft);
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 12.4px;
  color: var(--blue);
}
.pain-foot i { width: 6px; height: 6px; border-radius: 50%; background: var(--blue); box-shadow: 0 0 0 4px rgba(11, 99, 246, .12); }

/* 对比表 */
.compare { border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; background: #fff; box-shadow: var(--shadow-s); }
.compare-head { display: grid; grid-template-columns: 160px 1fr 1.1fr; }
.compare-head > div { padding: 20px 22px; font-size: 13.5px; font-weight: 600; letter-spacing: .4px; }
.compare-head .ch-param { color: var(--ink-3); font-weight: 500; font-size: 12px; letter-spacing: 1.4px; }
.compare-head .ch-old { color: var(--ink-3); text-align: center; }
.compare-head .ch-new {
  text-align: center;
  color: #fff;
  background: linear-gradient(100deg, var(--blue), #2E7FF8);
  border-radius: 10px 10px 0 0;
}
.c-row { display: grid; grid-template-columns: 160px 1fr 1.1fr; border-top: 1px solid var(--line-soft); }
.c-row > div { padding: 15px 22px; font-size: 13.8px; display: flex; align-items: center; }
.c-row .c-param { color: var(--ink-2); font-weight: 500; background: #FAFCFF; }
.c-row .c-old { color: var(--ink-3); justify-content: center; text-align: center; }
.c-row .c-new { color: var(--ink); justify-content: center; text-align: center; gap: 8px; background: rgba(11, 99, 246, .035); font-weight: 500; }
.c-row .c-new svg { width: 14px; height: 14px; flex-shrink: 0; color: var(--blue); }
.c-row:hover .c-new { background: rgba(11, 99, 246, .07); }
.compare-foot { display: grid; grid-template-columns: repeat(4, 1fr); border-top: 1px solid var(--line); }
.compare-foot div { padding: 22px; text-align: center; border-left: 1px solid var(--line-soft); }
.compare-foot div:first-child { border-left: none; }
.compare-foot b { display: block; font-family: var(--font-en); font-size: 24px; color: var(--blue); letter-spacing: -.8px; }
.compare-foot span { font-size: 12px; color: var(--ink-2); }

@media (max-width: 760px) {
  .compare-head, .c-row { grid-template-columns: 92px 1fr 1.15fr; }
  .compare-head > div, .c-row > div { padding: 13px 12px; font-size: 12.5px; }
  .c-row .c-new { font-size: 12.5px; }
  .c-row .c-new svg { display: none; }
  .compare-foot { grid-template-columns: repeat(2, 1fr); }
  .compare-foot div:nth-child(3) { border-left: none; }
  .compare-foot div { border-top: 1px solid var(--line-soft); }
}

/* 行业应用 */
.industry-sec { position: relative; overflow: hidden; background: linear-gradient(170deg, #F7FBFF, #EAF3FF); }
.industry-main { position: relative; }
.industry-panel {
  display: none;
  grid-template-columns: 480px 1fr;
  gap: clamp(30px, 5vw, 70px);
  align-items: center;
  transition: opacity .18s var(--ease), transform .18s var(--ease);
}
.industry-panel.leaving { opacity: 0; transform: translateY(8px); }
.industry-panel.active { display: grid; animation: panelIn .42s var(--ease-out) both; }
.industry-panel.active .industry-stage { animation: artIn .5s var(--ease-out) both; }
@keyframes artIn {
  from { opacity: 0; transform: scale(.96); }
  to { opacity: 1; transform: none; }
}
.industry-text h2 { font-size: clamp(26px, 2.8vw, 40px); font-weight: 600; letter-spacing: -.6px; line-height: 1.25; }
.industry-slogan { margin-top: 14px; font-size: clamp(14.5px, 1.2vw, 17px); color: var(--blue); font-weight: 500; }
.industry-desc { margin-top: 16px; font-size: 14.4px; color: var(--ink-2); line-height: 1.95; max-width: 460px; }
.industry-text .fade { transition: opacity .32s var(--ease), transform .32s var(--ease); }
.industry-text.switching .fade { opacity: 0; transform: translateY(10px); }
.industry-text .link-circle { margin-top: 28px; }
.industry-visual { position: relative; }
.industry-stage {
  position: relative;
  aspect-ratio: 4 / 3;
  max-height: 480px;
  border-radius: var(--radius-l);
  background:
    radial-gradient(circle at 50% 60%, rgba(11, 99, 246, .1), transparent 60%),
    linear-gradient(160deg, rgba(255, 255, 255, .9), rgba(232, 242, 255, .7));
  border: 1px solid rgba(255, 255, 255, .9);
  box-shadow: var(--shadow);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}
.industry-stage .ph { position: absolute; inset: 0; border-radius: 0; background: transparent; }
.industry-stage .ph::before { opacity: .5; }
.product-art {
  position: relative;
  z-index: 2;
  width: 52%;
  animation: floaty 6s ease-in-out infinite;
  transition: opacity .32s var(--ease), transform .32s var(--ease);
}
.industry-img {
  position: relative;
  z-index: 2;
  width: 72%;
  aspect-ratio: 4 / 3;
  max-height: 86%;
  object-fit: cover;
  border-radius: 16px;
  box-shadow: 0 26px 54px rgba(10, 61, 145, .18);
  animation: floaty 6s ease-in-out infinite;
}
.product-art.switching { opacity: 0; transform: scale(.94); }
@keyframes floaty {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-14px); }
}
.stage-base {
  position: absolute;
  left: 50%; bottom: 14%;
  transform: translateX(-50%);
  width: 46%; height: 8%;
  border-radius: 50%;
  background: radial-gradient(ellipse at center, rgba(11, 99, 246, .18), transparent 72%);
  filter: blur(9px);
  z-index: 1;
}
.industry-anchors-wrap { margin-top: clamp(30px, 4vw, 46px); display: flex; align-items: center; gap: 12px; }
.anchor-arrow {
  width: 40px; height: 40px;
  flex-shrink: 0;
  border-radius: 50%;
  border: 1px solid var(--line);
  background: #fff;
  color: var(--blue);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all .26s var(--ease);
}
.anchor-arrow:hover:not(:disabled) { background: var(--blue); color: #fff; border-color: var(--blue); }
.anchor-arrow:disabled { color: var(--ink-3); opacity: .4; cursor: not-allowed; }
.anchor-scroll {
  flex: 1;
  overflow-x: auto;
  scrollbar-width: none;
  scroll-behavior: smooth;
  -webkit-overflow-scrolling: touch;
}
.anchor-scroll::-webkit-scrollbar { display: none; }
.anchor-list { display: flex; gap: 10px; width: max-content; padding: 2px; }
.anchor-item {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 11px 20px;
  border-radius: 24px;
  border: 1px solid var(--line);
  background: #fff;
  color: var(--blue);
  font-size: 13.8px;
  cursor: pointer;
  white-space: nowrap;
  transition: all .3s var(--ease);
}
.anchor-item .no {
  font-family: var(--font-en);
  font-size: 11px;
  letter-spacing: 1px;
  opacity: .6;
}
.anchor-item:hover { border-color: rgba(11, 99, 246, .35); }
.anchor-item.active {
  background: linear-gradient(100deg, var(--blue), #2E7FF8);
  border-color: transparent;
  color: #fff;
  font-weight: 500;
  box-shadow: 0 10px 26px rgba(11, 99, 246, .3);
}
.anchor-item.active .no { opacity: .8; }

@media (max-width: 900px) {
  .industry-panel { grid-template-columns: 1fr; gap: 28px; }
  .industry-text { order: 1; }
  .industry-visual { order: -1; }
  .industry-stage { max-height: 360px; }
}

/* FAQ */
.faq-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 0 clamp(24px, 4vw, 56px); }
.faq-item { position: relative; border-bottom: 1px solid rgba(11, 99, 246, .1); }
.faq-item::before {
  content: '';
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: 2px;
  background: var(--line);
  transition: background .3s var(--ease);
}
.faq-item:hover::before { background: rgba(11, 99, 246, .45); }
.faq-item.active::before { background: linear-gradient(180deg, var(--blue), var(--blue-light)); }
.faq-q {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 20px 18px 20px 22px;
  background: none;
  border: none;
  cursor: pointer;
  text-align: left;
  font-size: 15.2px;
  font-weight: 500;
  color: var(--ink);
  line-height: 1.6;
  transition: color .26s;
}
.faq-q:hover { color: var(--blue); }
.faq-item.active .faq-q { color: var(--blue); }
.faq-icon {
  width: 26px; height: 26px;
  flex-shrink: 0;
  border-radius: 50%;
  border: 1px solid var(--line);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--blue);
  transition: all .32s var(--ease);
}
.faq-icon svg { width: 13px; height: 13px; }
.faq-item.active .faq-icon { background: var(--blue); border-color: var(--blue); color: #fff; transform: rotate(45deg); }
.faq-a { max-height: 0; overflow: hidden; transition: max-height .42s var(--ease-out); }
.faq-a-inner {
  padding: 0 18px 20px 22px;
  font-size: 13.6px;
  color: var(--ink-2);
  line-height: 1.85;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
@media (max-width: 800px) { .faq-grid { grid-template-columns: 1fr; } }

/* ==========================================================================
   案例中心
   ========================================================================== */
.cases-hero { position: relative; }
.cases-hero .hero-kicker {
  display: inline-block;
  font-size: 12px;
  letter-spacing: 2.6px;
  color: var(--blue);
  background: rgba(11, 99, 246, .08);
  border: 1px solid rgba(11, 99, 246, .18);
  border-radius: 24px;
  padding: 7px 17px;
  margin-bottom: 22px;
}
.cases-hero h1 { max-width: 900px; }
.cases-hero h1 em { font-size: .48em; }

.fan-wrap { position: relative; }
.fan-wrap::before,
.fan-wrap::after {
  content: '';
  position: absolute;
  top: 0; bottom: 96px;
  width: clamp(30px, 7vw, 120px);
  z-index: 30;
  pointer-events: none;
}
.fan-wrap::before { left: 0; background: linear-gradient(90deg, #fff 10%, rgba(255, 255, 255, 0)); }
.fan-wrap::after { right: 0; background: linear-gradient(270deg, #fff 10%, rgba(255, 255, 255, 0)); }
.fan-stage {
  position: relative;
  height: clamp(460px, 50vw, 520px);
  display: flex;
  align-items: center;
  justify-content: center;
  perspective: 1600px;
}
.fan-card {
  position: absolute;
  left: 50%; top: 6px;
  width: clamp(300px, 31vw, 400px);
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 18px;
  overflow: hidden;
  box-shadow: 0 22px 60px rgba(11, 99, 246, .14);
  transition: transform .62s var(--ease-out), opacity .5s var(--ease), filter .5s var(--ease);
  transform-origin: center bottom;
  cursor: pointer;
  will-change: transform;
  height: calc(100% - 60px);
  display: flex;
  flex-direction: column;
}
.fan-visual {
  position: relative;
  flex: 0 0 46%;
  background: linear-gradient(155deg, #F2F9FF, #DFEDFB);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}
.fan-visual::after {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(11, 99, 246, .05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(11, 99, 246, .05) 1px, transparent 1px);
  background-size: 30px 30px;
  mask-image: radial-gradient(circle at 50% 55%, #000 10%, transparent 76%);
  -webkit-mask-image: radial-gradient(circle at 50% 55%, #000 10%, transparent 76%);
}
.fan-visual svg { width: 44%; max-height: 78%; position: relative; z-index: 1; filter: drop-shadow(0 18px 24px rgba(10, 61, 145, .14)); }
.fan-tag {
  position: absolute;
  top: 16px; left: 16px;
  z-index: 2;
  font-family: var(--font-en);
  font-size: 10.5px;
  letter-spacing: 1.8px;
  text-transform: uppercase;
  color: var(--blue);
  background: rgba(255, 255, 255, .84);
  border: 1px solid rgba(11, 99, 246, .16);
  border-radius: 20px;
  padding: 5px 12px;
}
.fan-num {
  position: absolute;
  right: 16px; bottom: 12px;
  z-index: 2;
  font-family: var(--font-en);
  font-size: 42px;
  font-weight: 800;
  letter-spacing: -2px;
  color: rgba(11, 99, 246, .12);
  line-height: 1;
}
.fan-body { flex: 1; padding: 22px 24px 22px; display: flex; flex-direction: column; }
.fan-body h3 { font-size: 17px; font-weight: 600; line-height: 1.5; letter-spacing: -.2px; }
.fan-body .sub {
  margin-top: 10px;
  font-size: 12.8px;
  color: var(--ink-2);
  line-height: 1.8;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.fan-flow {
  margin-top: 14px;
  font-size: 11.6px;
  color: var(--blue);
  letter-spacing: .2px;
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
  align-items: center;
}
.fan-flow i { font-style: normal; opacity: .45; }
.fan-cta {
  margin-top: auto;
  padding-top: 16px;
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-size: 13px;
  color: var(--ink-2);
  text-decoration: none;
  transition: color .26s;
}
.fan-cta svg { width: 13px; height: 13px; transition: transform .26s; }
.fan-cta:hover { color: var(--blue); }
.fan-cta:hover svg { transform: translateX(4px); }

.fan-controls {
  display: flex;
  align-items: center;
  gap: clamp(16px, 3vw, 40px);
  margin-top: 28px;
}
.fan-counter { display: flex; align-items: baseline; gap: 5px; font-family: var(--font-en); }
.fan-counter .cur { font-size: 26px; font-weight: 700; color: var(--ink); letter-spacing: -1px; }
.fan-counter .sep { color: var(--ink-3); font-size: 14px; }
.fan-counter .tot { font-size: 13px; color: var(--ink-3); }
.fan-progress { flex: 1; display: flex; align-items: center; gap: 8px; }
.fan-progress span {
  height: 2px;
  flex: 1;
  border-radius: 2px;
  background: var(--line);
  position: relative;
  overflow: hidden;
  cursor: pointer;
}
.fan-progress span::after {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--blue);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .4s var(--ease);
}
.fan-progress span.active::after { transform: scaleX(1); }
.fan-arrows { display: flex; gap: 10px; }
.fan-arrows button {
  width: 44px; height: 44px;
  border-radius: 50%;
  border: 1px solid var(--line);
  background: #fff;
  color: var(--ink);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all .28s var(--ease);
}
.fan-arrows button:hover { background: var(--blue); border-color: var(--blue); color: #fff; box-shadow: 0 10px 24px rgba(11, 99, 246, .28); }
.fan-hint { margin-top: 14px; font-size: 12px; color: var(--ink-3); letter-spacing: .4px; }

@media (max-width: 700px) {
  .fan-stage { height: 452px; }
  .fan-card { width: min(86vw, 340px); height: calc(100% - 32px); }
  .fan-visual { flex-basis: 42%; }
  .fan-controls { gap: 12px; }
  .fan-progress { display: none; }
}

/* 流程 */
.flow { position: relative; }
.flow-steps { display: grid; grid-template-columns: repeat(5, 1fr); gap: 14px; }
.flow-step {
  position: relative;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 26px 20px;
  transition: all .32s var(--ease);
}
.flow-step:hover { transform: translateY(-4px); border-color: rgba(11, 99, 246, .3); box-shadow: var(--shadow-s); }
.flow-step::after {
  content: '';
  position: absolute;
  right: -8px; top: 42px;
  width: 16px;
  border-top: 1px dashed rgba(11, 99, 246, .35);
  z-index: 2;
}
.flow-step:last-child::after { display: none; }
.flow-dot {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px; height: 34px;
  border-radius: 50%;
  background: var(--blue-soft);
  color: var(--blue);
  font-family: var(--font-en);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .4px;
}
.flow-step h3 { margin-top: 16px; font-size: 15.5px; font-weight: 600; }
.flow-step p { margin-top: 8px; font-size: 12.6px; color: var(--ink-2); line-height: 1.75; }
.flow-foot {
  margin-top: 22px;
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 18px 22px;
  border-radius: var(--radius);
  background: linear-gradient(100deg, var(--blue), #2E7FF8);
  color: #fff;
}
.flow-foot svg { width: 24px; height: 24px; flex-shrink: 0; }
.flow-foot p { font-size: 13.5px; line-height: 1.7; color: rgba(255, 255, 255, .88); }
.flow-foot b { color: #fff; }
@media (max-width: 1000px) {
  .flow-steps { grid-template-columns: repeat(2, 1fr); }
  .flow-step::after { display: none; }
}
@media (max-width: 560px) {
  .flow-steps { grid-template-columns: 1fr; }
}

/* 索样联系 */
.sample-sec {
  position: relative;
  padding: clamp(66px, 8vw, 106px) 0;
  background: linear-gradient(150deg, #04142C 0%, #07203F 52%, #0A2C5C 100%);
  color: #fff;
  overflow: hidden;
}
.sample-sec::before {
  content: '';
  position: absolute;
  top: -180px; right: -100px;
  width: 620px; height: 620px;
  background: radial-gradient(circle, rgba(11, 99, 246, .34), transparent 66%);
}
.sample-inner { position: relative; z-index: 1; display: grid; grid-template-columns: 1.05fr .95fr; gap: clamp(30px, 5vw, 70px); align-items: start; }
.sample-txt .kicker { color: #7FB2FF; }
.sample-txt h2 { font-size: clamp(24px, 2.6vw, 38px); font-weight: 600; line-height: 1.4; letter-spacing: -.5px; }
.sample-txt h2 em { display: block; font-style: normal; font-size: .72em; color: rgba(255, 255, 255, .7); margin-top: 10px; letter-spacing: 0; }
.sample-txt > p { margin-top: 20px; font-size: 14.2px; color: rgba(255, 255, 255, .62); line-height: 1.9; max-width: 480px; }
.sample-info { margin-top: 32px; display: flex; flex-direction: column; gap: 14px; }
.sample-info div { display: flex; gap: 12px; align-items: flex-start; font-size: 13.6px; color: rgba(255, 255, 255, .72); }
.sample-info svg { width: 17px; height: 17px; flex-shrink: 0; margin-top: 3px; color: #7FB2FF; }
.sample-info b { color: #fff; font-weight: 500; }
.form-card {
  background: #fff;
  border-radius: var(--radius-l);
  padding: clamp(24px, 3vw, 34px);
  box-shadow: 0 30px 70px rgba(2, 10, 24, .4);
}
.form-card .form-head { display: flex; align-items: center; gap: 12px; margin-bottom: 22px; }
.form-card .form-head i {
  width: 40px; height: 40px;
  border-radius: 11px;
  background: var(--blue-soft);
  color: var(--blue);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.form-card .form-head h3 { font-size: 17px; font-weight: 600; color: var(--ink); }
.form-card .form-head small { display: block; margin-top: 3px; font-size: 12px; color: var(--ink-3); }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.form-grid .full { grid-column: 1 / -1; }
.form-submit {
  grid-column: 1 / -1;
  margin-top: 4px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 15px 26px;
  border: none;
  border-radius: 10px;
  background: var(--blue);
  color: #fff;
  font-size: 14.6px;
  font-weight: 500;
  cursor: pointer;
  box-shadow: 0 12px 30px rgba(11, 99, 246, .28);
  transition: all .3s var(--ease);
}
.form-submit:hover { background: var(--blue-light); transform: translateY(-2px); }
.form-note { grid-column: 1 / -1; font-size: 11.5px; color: var(--ink-3); line-height: 1.7; }
@media (max-width: 900px) {
  .sample-inner { grid-template-columns: 1fr; }
}
@media (max-width: 560px) {
  .form-grid { grid-template-columns: 1fr; }
}

/* ==========================================================================
   新闻资讯
   ========================================================================== */
.news-layout { display: grid; grid-template-columns: 1fr 320px; gap: clamp(26px, 4vw, 52px); align-items: start; }
.headline {
  display: grid;
  grid-template-columns: 1.15fr 1fr;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
  overflow: hidden;
  box-shadow: var(--shadow-s);
}
.hf-featured { padding: 18px; border-right: 1px solid var(--line-soft); }
.hf-cover { position: relative; }
.hf-cover .ph { aspect-ratio: 16 / 9.5; border-radius: 10px; }
.hf-badge {
  position: absolute;
  top: 12px; left: 12px;
  z-index: 2;
  font-size: 11px;
  letter-spacing: 1.4px;
  color: #fff;
  background: linear-gradient(100deg, var(--blue), #2E7FF8);
  border-radius: 20px;
  padding: 5px 12px;
}
.hf-body { padding: 16px 4px 6px; }
.hf-cat { font-size: 11.5px; color: var(--blue); letter-spacing: 1px; }
.hf-body h3 { margin-top: 8px; font-size: clamp(16px, 1.4vw, 19px); font-weight: 600; line-height: 1.55; letter-spacing: -.2px; }
.hf-body p { margin-top: 9px; font-size: 12.8px; color: var(--ink-2); line-height: 1.8; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.hf-meta { margin-top: 12px; display: flex; align-items: center; gap: 10px; font-size: 11.8px; color: var(--ink-3); }
.hf-meta i { width: 3px; height: 3px; border-radius: 50%; background: currentColor; opacity: .6; }
.headline-list { padding: 18px; display: flex; flex-direction: column; justify-content: space-between; gap: 6px; }
.hl-item { display: flex; gap: 14px; padding: 14px 0; border-bottom: 1px solid var(--line-soft); text-decoration: none; color: inherit; }
.hl-item:last-child { border-bottom: none; }
.hl-no { font-family: var(--font-en); font-size: 12px; font-weight: 700; color: var(--blue); opacity: .6; padding-top: 2px; }
.hl-body h3 { font-size: 14.2px; font-weight: 500; line-height: 1.55; transition: color .26s; }
.hl-item:hover h3 { color: var(--blue); }
.hl-meta { margin-top: 7px; display: flex; align-items: center; gap: 9px; font-size: 11.5px; color: var(--ink-3); }
.hl-cat { padding: 2px 8px; border-radius: 10px; background: var(--blue-soft); color: var(--blue); font-size: 10.5px; }

.blocks { margin-top: clamp(24px, 3vw, 34px); display: flex; flex-direction: column; gap: 16px; }
.block { border: 1px solid var(--line); border-radius: var(--radius); background: #fff; padding: 22px clamp(18px, 2.4vw, 28px) 12px; box-shadow: var(--shadow-s); }
.block-head { display: flex; align-items: center; justify-content: space-between; gap: 14px; padding-bottom: 14px; border-bottom: 1px solid var(--line-soft); }
.block-head-left { display: flex; align-items: center; gap: 12px; }
.block-icon {
  width: 36px; height: 36px;
  border-radius: 10px;
  background: var(--blue-soft);
  color: var(--blue);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.block-icon svg { width: 18px; height: 18px; }
.block-title strong { display: block; font-size: 16px; font-weight: 600; }
.block-title small { display: block; font-family: var(--font-en); font-size: 10px; letter-spacing: 1.6px; color: var(--ink-3); text-transform: uppercase; margin-top: 2px; }
.block-more { display: inline-flex; align-items: center; gap: 6px; font-size: 12.4px; color: var(--ink-3); text-decoration: none; white-space: nowrap; transition: color .25s; }
.block-more svg { width: 12px; height: 12px; }
.block-more:hover { color: var(--blue); }
.block-list { display: grid; grid-template-columns: 1fr 1fr; gap: 0 clamp(18px, 3vw, 40px); }
.block-item { display: flex; gap: 10px; align-items: flex-start; padding: 12px 0; border-bottom: 1px dashed rgba(11, 99, 246, .09); text-decoration: none; color: inherit; }
.block-list .block-item:nth-last-child(1), .block-list .block-item:nth-last-child(2) { border-bottom: none; }
.bi-dot { width: 5px; height: 5px; border-radius: 50%; background: var(--blue); opacity: .35; margin-top: 8px; flex-shrink: 0; transition: opacity .25s, transform .25s; }
.block-item:hover .bi-dot { opacity: 1; transform: scale(1.3); }
.block-item-body h4 { font-size: 13.4px; font-weight: 400; line-height: 1.6; color: var(--ink); display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; transition: color .25s; }
.block-item:hover h4 { color: var(--blue); }
.block-item-body small { display: block; margin-top: 5px; font-family: var(--font-en); font-size: 11px; color: var(--ink-3); }

.side { position: sticky; top: calc(var(--nav-h) + 20px); display: flex; flex-direction: column; gap: 14px; }
.side-card { border: 1px solid var(--line); border-radius: var(--radius); background: #fff; padding: 20px; box-shadow: var(--shadow-s); }
.side-card > h4 { font-family: var(--font-en); font-size: 12px; font-weight: 700; letter-spacing: 2px; text-transform: uppercase; color: var(--ink); display: flex; align-items: center; justify-content: space-between; margin-bottom: 14px; }
.side-card > h4 span { font-family: var(--font); font-size: 13px; letter-spacing: .4px; color: var(--ink-2); font-weight: 500; }
.cat-stat { display: flex; flex-direction: column; }
.cat-stat-item { display: flex; align-items: center; justify-content: space-between; padding: 10px 2px; border-bottom: 1px dashed var(--line-soft); font-size: 13.4px; color: var(--ink); cursor: pointer; transition: color .24s; }
.cat-stat-item:last-child { border-bottom: none; }
.cat-stat-item:hover { color: var(--blue); }
.cs-name { display: flex; align-items: center; gap: 9px; }
.cs-dot { width: 6px; height: 6px; border-radius: 50%; background: var(--blue); opacity: .55; }
.cs-count { font-family: var(--font-en); font-size: 12px; color: var(--ink-3); }
.related-list, .hot-list { display: flex; flex-direction: column; }
.related-item { display: flex; gap: 10px; padding: 10px 0; border-bottom: 1px solid var(--line-soft); }
.related-item:last-child { border-bottom: none; }
.related-thumb { width: 44px; height: 44px; border-radius: 8px; background: var(--blue-soft); color: rgba(11, 99, 246, .55); display: flex; align-items: center; justify-content: center; flex-shrink: 0; }
.related-thumb svg { width: 20px; height: 20px; }
.related-body h5 { font-size: 12.8px; font-weight: 400; line-height: 1.55; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.related-body small { display: block; margin-top: 4px; font-size: 11px; color: var(--ink-3); }
.hot-item { display: flex; gap: 10px; padding: 9px 0; border-bottom: 1px solid var(--line-soft); }
.hot-item:last-child { border-bottom: none; }
.hot-no { font-family: var(--font-en); font-size: 12px; font-weight: 700; color: var(--blue); opacity: .5; padding-top: 2px; }
.hot-body h5 { font-size: 12.8px; font-weight: 400; line-height: 1.55; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.hot-body small { display: block; margin-top: 4px; font-size: 11px; color: var(--ink-3); }
.side-cta {
  border-radius: var(--radius);
  background: linear-gradient(150deg, #0A3D91, #0B63F6);
  color: #fff;
  padding: 24px 22px;
  position: relative;
  overflow: hidden;
}
.side-cta::after {
  content: '';
  position: absolute;
  right: -50px; bottom: -50px;
  width: 140px; height: 140px;
  border-radius: 50%;
  background: rgba(255, 255, 255, .1);
}
.side-cta h4 { font-size: 16px; font-weight: 600; line-height: 1.55; position: relative; z-index: 1; }
.side-cta h4 em { font-style: normal; color: #9FC7FF; }
.side-cta p { margin-top: 9px; font-size: 12.2px; color: rgba(255, 255, 255, .7); line-height: 1.7; }
.side-cta a {
  margin-top: 16px;
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-size: 12.6px;
  color: #fff;
  text-decoration: none;
  padding: 9px 16px;
  border-radius: 20px;
  background: rgba(255, 255, 255, .16);
  border: 1px solid rgba(255, 255, 255, .26);
  position: relative;
  z-index: 1;
  transition: background .26s;
}
.side-cta a:hover { background: rgba(255, 255, 255, .28); }
.side-cta a svg { width: 12px; height: 12px; }

@media (max-width: 1080px) {
  .news-layout { grid-template-columns: 1fr; }
  .side { position: static; }
  .side-card:first-child { display: none; }
  .headline { grid-template-columns: 1fr; }
  .hf-featured { border-right: none; border-bottom: 1px solid var(--line-soft); }
}
@media (max-width: 640px) {
  .block-list { grid-template-columns: 1fr; }
  .block-list .block-item:nth-last-child(2) { border-bottom: 1px dashed rgba(11, 99, 246, .09); }
}

/* ==========================================================================
   联系我们
   ========================================================================== */
.layout-section { padding: clamp(66px, 8vw, 104px) 0; }
.layout-grid { display: grid; grid-template-columns: 1.05fr .95fr; gap: clamp(28px, 4vw, 64px); align-items: center; }
.layout-visual { position: relative; }
.layout-visual .ph { aspect-ratio: 4 / 3.2; border-radius: var(--radius-l); }
.layout-visual svg.abstract { position: absolute; inset: 0; width: 100%; height: 100%; z-index: 2; }
.layout-panels { display: flex; flex-direction: column; gap: 12px; }
.panel-card { border: 1px solid var(--line); border-left: 3px solid var(--blue); border-radius: 12px; background: #fff; padding: 18px 20px; transition: all .3s var(--ease); }
.panel-card:hover { box-shadow: var(--shadow-s); transform: translateX(4px); border-color: rgba(11, 99, 246, .2); border-left-color: var(--blue); }
.panel-card .idx { font-family: var(--font-en); font-size: 10.5px; letter-spacing: 1.8px; color: var(--ink-3); }
.panel-card h4 { margin-top: 6px; font-size: 15.5px; font-weight: 600; display: flex; align-items: baseline; gap: 8px; }
.panel-card h4 em { font-style: normal; font-size: 11.5px; color: var(--blue); background: var(--blue-soft); border-radius: 10px; padding: 2px 8px; font-weight: 500; }
.panel-card p { margin-top: 7px; font-size: 12.8px; color: var(--ink-2); line-height: 1.8; }
.panel-card:nth-child(2) { border-left-color: #12B5A5; }
.panel-card:nth-child(3) { border-left-color: #7C5CD6; }
.panel-card:nth-child(4) { border-left-color: #C98A3C; }

.social-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
.social-card { border: 1px solid var(--line); border-radius: var(--radius); background: #fff; padding: 22px; text-align: center; transition: all .3s var(--ease); }
.social-card:hover { transform: translateY(-4px); box-shadow: var(--shadow); border-color: rgba(11, 99, 246, .26); }
.social-icon {
  width: 44px; height: 44px;
  margin: 0 auto 12px;
  border-radius: 12px;
  background: var(--blue-soft);
  color: var(--blue);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 15px;
  font-weight: 700;
}
.social-card h4 { font-size: 14.5px; font-weight: 600; }
.social-desc { margin-top: 5px; font-size: 12px; color: var(--ink-3); }
.social-qr { width: 96px; height: 96px; margin: 14px auto 8px; border: 1px solid var(--line-soft); border-radius: 8px; overflow: hidden; background: #F8FBFF; }
.social-qr svg { width: 100%; height: 100%; }
.social-qr img { width: 100%; height: 100%; object-fit: cover; display: block; }
.social-tip { font-size: 11px; color: var(--ink-3); }

.contact-sec { background: linear-gradient(180deg, #fff, var(--bg-soft)); }
/* 联系表单：按文档要求不使用卡片容器 */
.contact-plain { max-width: 980px; margin: 0 auto; }
.contact-plain h2 { font-size: clamp(22px, 2.4vw, 32px); font-weight: 600; letter-spacing: -.4px; }
.contact-plain > p { margin-top: 12px; font-size: 14px; color: var(--ink-2); line-height: 1.85; max-width: 680px; }
.contact-plain .form-grid { margin-top: 4px; }
@media (min-width: 901px) {
  .contact-plain .form-grid { grid-template-columns: 1fr 1fr; }
}
.contact-box { max-width: 940px; margin: 0 auto; background: #fff; border: 1px solid var(--line); border-radius: var(--radius-l); padding: clamp(26px, 4vw, 48px); box-shadow: var(--shadow); }
.contact-box h2 { font-size: clamp(22px, 2.4vw, 32px); font-weight: 600; letter-spacing: -.4px; }
.contact-box > p { margin-top: 12px; font-size: 14px; color: var(--ink-2); line-height: 1.85; max-width: 620px; }
.radio-group { margin: 26px 0 20px; }
.radio-group .rlabel { font-size: 13px; color: var(--ink-2); margin-bottom: 12px; }
.radio-wrap { display: flex; flex-wrap: wrap; gap: 9px; }
.radio-item { position: relative; cursor: pointer; }
.radio-item input { position: absolute; opacity: 0; pointer-events: none; }
.radio-item span {
  display: inline-block;
  padding: 9px 18px;
  border-radius: 22px;
  border: 1px solid var(--line);
  background: #fff;
  font-size: 13.2px;
  color: var(--ink-2);
  transition: all .26s var(--ease);
}
.radio-item input:checked + span { background: var(--blue); border-color: var(--blue); color: #fff; box-shadow: 0 8px 20px rgba(11, 99, 246, .24); }
.contact-footer { margin-top: 34px; padding-top: 24px; border-top: 1px solid var(--line-soft); display: grid; grid-template-columns: 1fr 1fr; gap: 18px 30px; }
.contact-footer .title { font-size: 12px; letter-spacing: 1.4px; color: var(--ink-3); text-transform: uppercase; }
.contact-footer .text { margin-top: 5px; font-size: 13.6px; color: var(--ink); line-height: 1.7; }
.contact-footer .text a { color: var(--blue); text-decoration: none; }
.contact-footer .text a:hover { text-decoration: underline; }

@media (max-width: 900px) {
  .layout-grid { grid-template-columns: 1fr; }
  .layout-visual { order: -1; }
  .social-grid { grid-template-columns: repeat(2, 1fr); }
  .contact-footer { grid-template-columns: 1fr; }
}
@media (max-width: 520px) {
  .social-grid { grid-template-columns: 1fr; }
}

/* 打印（保留基础可读性） */
@media print {
  .nav, .drawer, .top-btn, .scroll-hint, .footer, .fan-controls { display: none !important; }
  .reveal { opacity: 1 !important; transform: none !important; }
}

/* ==========================================================================
   文章详情
   ========================================================================== */
.article-hero { padding-bottom: clamp(40px, 5vw, 64px); }
.article-hero h1 { font-size: clamp(25px, 3vw, 42px); line-height: 1.35; letter-spacing: -.6px; max-width: 900px; }
.article-meta { display: flex; align-items: center; gap: 10px; margin-top: 18px; font-size: 12.5px; color: var(--ink-3); }
.article-meta b { color: var(--blue); font-weight: 600; }
.article-meta .dot { width: 3px; height: 3px; border-radius: 50%; background: currentColor; opacity: .5; }
.article-wrap { max-width: 880px; }
.article-summary {
  font-size: clamp(15px, 1.25vw, 17px);
  line-height: 1.9;
  color: var(--ink-2);
  padding: 18px 22px;
  border-left: 3px solid var(--blue);
  background: linear-gradient(100deg, var(--blue-soft), rgba(232, 241, 255, .3));
  border-radius: 0 12px 12px 0;
  margin-bottom: 26px;
}
.article-text p { font-size: 15px; line-height: 2; color: var(--ink-2); margin-bottom: 18px; }
.article-text p:first-child { color: var(--ink); }
.article-cta {
  margin-top: 36px;
  padding: 24px 26px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(120deg, #F7FBFF, #EAF3FF);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  flex-wrap: wrap;
}
.article-cta h3 { font-size: 17px; font-weight: 600; letter-spacing: -.2px; }
.article-cta p { margin-top: 6px; font-size: 13px; color: var(--ink-2); line-height: 1.7; max-width: 520px; }
.rel-block { margin-top: clamp(40px, 5vw, 64px); }
.rel-block h2 { font-size: 18px; font-weight: 600; margin-bottom: 18px; }
.rel-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
.rel-card {
  display: block;
  padding: 20px;
  border: 1px solid var(--line);
  border-radius: 13px;
  background: #fff;
  text-decoration: none;
  color: inherit;
  transition: all .3s var(--ease);
}
.rel-card:hover { border-color: rgba(11, 99, 246, .3); box-shadow: var(--shadow-s); transform: translateY(-3px); }
.rel-cat { font-size: 11px; color: var(--blue); background: var(--blue-soft); border-radius: 10px; padding: 3px 9px; }
.rel-card h3 { margin-top: 10px; font-size: 14px; font-weight: 500; line-height: 1.6; }
.rel-card:hover h3 { color: var(--blue); }
.rel-date { display: block; margin-top: 10px; font-size: 11.5px; color: var(--ink-3); }
.article-empty { padding: 40px 0; }
.article-empty h1 { font-size: 26px; margin-bottom: 12px; }
@media (max-width: 800px) {
  .rel-grid { grid-template-columns: 1fr; }
  .article-cta { flex-direction: column; align-items: flex-start; }
}