:root {
  --blue: #154a94;
  --blue-mid: #1d4eae;
  --ink: #071833;
  --ink-2: #10284d;
  --gold: #c9842a;
  --gold-2: #e3a24a;
  --paper: #f4f1ea;
  --paper-2: #fbfaf7;
  --white: #ffffff;
  --text: #1c2838;
  --muted: #5d6b7c;
  --line: rgba(18, 58, 143, 0.12);
  --shadow: 0 4px 12px rgba(10, 28, 62, 0.06);
  --radius: 6px;
  --header: 76px;
  --max: 1440px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--text);
  background: var(--white);
  font-family: "PingFang SC", "HarmonyOS Sans SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  font-size: 16px;
  line-height: 1.75;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button, input, textarea, select { font: inherit; }

.wrap {
  width: min(var(--max), calc(100% - 48px));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  height: var(--header);
  background: #fff;
  border-bottom: 1px solid var(--line);
  box-shadow: 0 1px 0 rgba(255,255,255,0.8);
}
.site-header.scrolled { box-shadow: 0 8px 24px rgba(7, 24, 51, 0.06); }
.header-inner {
  height: 100%;
  display: flex;
  align-items: center;
  gap: 28px;
}
.brand { display: flex; align-items: center; gap: 12px; flex: 0 0 auto; }
.brand img { height: 46px; width: auto; }
.brand-name { display: flex; flex-direction: column; line-height: 1.15; }
.brand-name strong { font-size: 16px; letter-spacing: 0.04em; color: var(--ink); }
.brand-name span { font-size: 12px; color: var(--muted); letter-spacing: 0.12em; }

.nav { display: flex; align-items: center; gap: 4px; margin-left: auto; }
.nav > a, .menu > summary {
  padding: 6px 16px;
  color: var(--ink-2);
  font-size: 15px;
  border-radius: 999px;
  cursor: pointer;
  list-style: none;
}
.nav > a:hover, .menu > summary:hover, .nav > a.active, .menu.active > summary { color: var(--blue); background: rgba(18, 58, 143, 0.06); }
.menu { position: relative; }
.menu summary { display: flex; align-items: center; gap: 6px; }
.menu summary::-webkit-details-marker { display: none; }
.menu summary:after { content: ""; width: 6px; height: 6px; border-right: 1.5px solid currentColor; border-bottom: 1.5px solid currentColor; transform: translateY(-2px) rotate(45deg); }
.menu-panel {
  position: absolute;
  top: 100%;
  left: 0;
  width: 320px;
  padding: 10px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 6px;
  box-shadow: var(--shadow);
  border-top: 10px solid transparent;
  background-clip: padding-box;
}
.menu-panel a { display: block; padding: 12px 12px; border-radius: 6px; }
.menu-panel a:hover { background: var(--paper); }
.menu-panel strong { display: block; font-size: 14px; color: var(--ink); }
.menu-panel span { display: block; font-size: 12px; color: var(--muted); line-height: 1.5; }
.nav-phone {
  margin-left: 10px;
  padding: 8px 16px !important;
  background: var(--ink);
  color: #fff !important;
  border-radius: 999px;
}
.nav-phone:hover { background: var(--blue) !important; color: #fff !important; }
.nav-toggle {
  display: none;
  margin-left: auto;
  width: 42px;
  height: 42px;
  border: 1px solid rgba(18, 58, 143, 0.28);
  border-radius: 6px;
  background: #fff;
  cursor: pointer;
  flex: 0 0 auto;
}
.nav-toggle span, .nav-toggle span:before, .nav-toggle span:after {
  display: block; height: 1.5px; width: 18px; background: var(--ink); position: relative; margin: 0 auto;
}
.nav-toggle span:before, .nav-toggle span:after { content: ""; position: absolute; left: 0; }
.nav-toggle span:before { top: -6px; }
.nav-toggle span:after { top: 6px; }

.hero {
  position: relative;
  overflow: hidden;
  color: #fff;
  background:
    radial-gradient(900px 420px at 85% -10%, rgba(227, 162, 74, 0.28), transparent 60%),
    radial-gradient(700px 380px at -10% 90%, rgba(29, 78, 174, 0.55), transparent 55%),
    linear-gradient(160deg, #0c274f 0%, #163e78 52%, #1e5696 100%);
}
.hero-carousel { height: 520px; min-height: 520px; }
.hero-carousel .slides, .hero-carousel .slide { position: absolute; inset: 0; }
.hero-carousel .slide {
  background-position: center;
  background-size: cover;
  opacity: 0;
  transform: translateX(100%);
  transition: transform .7s cubic-bezier(.22, .7, .3, 1);
  z-index: 0;
}
.hero-carousel .slide.on,
.hero-carousel .slide.leave { opacity: 1; }
.hero-carousel .slide.on { transform: translateX(0); z-index: 2; }
.hero-carousel .slide.leave { transform: translateX(-100%); z-index: 1; }
.hero-carousel .slide:after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(100deg, rgba(8, 26, 58, 0.82) 0%, rgba(12, 40, 88, 0.55) 48%, rgba(16, 48, 96, 0.22) 100%);
}
.hero-carousel .hero-inner { position: relative; z-index: 2; padding: 64px 0 40px; text-align: left; }
.hero-carousel h1 {
  font-size: 44px;
  white-space: nowrap;
  letter-spacing: 0.02em;
  line-height: 1.3;
  font-weight: 650;
}
.hero-carousel .hero-slogan {
  margin: 14px 0 0;
  font-size: 32px;
  font-weight: 550;
  letter-spacing: 0.04em;
  color: var(--gold-2);
}
.hero-copy .lead { max-width: 640px; margin: 16px 0 0; font-size: 16px; line-height: 1.85; }
.hero-copy .slash-line { justify-content: flex-start; margin-top: 20px; gap: 8px; }
.hero-copy .slash-line span {
  display: inline-flex;
  align-items: center;
  padding: 3px 12px;
  border: 1px solid rgba(227, 162, 74, 0.55);
  border-radius: 999px;
  color: #fff;
  letter-spacing: 0.08em;
  font-size: 13px;
}
.hero-copy .slash-line span + span:before { content: none; }
.hero-copy .hero-actions { justify-content: flex-start; margin-top: 26px; }
.hero-nav, .hero-dots { position: relative; z-index: 2; }
.hero-arrow {
  position: absolute;
  top: 50%;
  z-index: 2;
  width: 42px;
  height: 42px;
  margin-top: -21px;
  border: 1px solid rgba(255,255,255,0.35);
  border-radius: 6px;
  background: rgba(7, 24, 51, 0.35);
  color: #fff;
  cursor: pointer;
}
.hero-arrow.prev { left: 18px; }
.hero-arrow.next { right: 18px; }
.hero-copies { display: grid; }
.hero-copy {
  grid-area: 1 / 1;
  opacity: 0;
  visibility: hidden;
  transform: translateX(48px);
  transition: opacity .55s ease, transform .7s cubic-bezier(.22, .7, .3, 1);
}
.hero-copy.on { opacity: 1; visibility: visible; transform: none; z-index: 1; }
.hero-copy.leave { opacity: 0; visibility: visible; transform: translateX(-48px); z-index: 0; }
.hero-dots { display: flex; justify-content: center; gap: 10px; margin-top: 36px; }
.hero-dots button {
  width: 8px;
  height: 8px;
  min-width: 0;
  padding: 0;
  border: 0;
  border-radius: 1px;
  background: rgba(255,255,255,0.45);
  cursor: pointer;
  transition: width .3s ease, background .3s ease;
}
.hero-dots button.on { width: 28px; background: var(--gold-2); }
/* —— 截图立体舞台：抽象背景 + 三张截图由上到下阶梯递进的 3D 队列 —— */
.shots {
  position: relative;
  z-index: 1;
  padding: 12px;
  border-radius: 8px;
  isolation: isolate;
  overflow: hidden;
  background-color: #061228;
  background-image:
    linear-gradient(180deg, rgba(6, 18, 40, 0.35) 0%, rgba(6, 18, 40, 0.22) 42%, rgba(6, 18, 40, 0.48) 100%),
    radial-gradient(88% 78% at 50% 45%, rgba(4, 14, 32, 0.12) 0%, rgba(4, 12, 28, 0.42) 100%),
    var(--shots-bg, url("../images/banner-tech.jpg"));
  background-position: center;
  background-size: cover;
  background-repeat: no-repeat;
}
/* 科技底图 + 网格肌理；截图舞台叠在上层 */

.shots-stage {
  position: relative;
  z-index: 1;
  overflow: hidden;
  height: 486px;
  perspective: 2600px;
  perspective-origin: 50% 50%;
  --shot-w: 690px;
  --shot-h: 466px;
  --ring-r: calc(690px * 0.866 + 10px);
}
@property --ring-rot {
  syntax: "<angle>";
  inherits: false;
  initial-value: 0deg;
}
.shots-photo {
  position: absolute;
  inset: 0;
  transform-style: preserve-3d;
  transform: rotateY(calc(var(--ring-rot) * -1));
  animation: ringSpin 48s linear infinite;
}
@keyframes ringSpin {
  from { --ring-rot: 0deg; }
  to { --ring-rot: 360deg; }
}
.shots-stage:hover .shots-photo { animation-play-state: paused; }
.shots::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(120, 180, 255, 0.055) 1px, transparent 1px),
    linear-gradient(90deg, rgba(120, 180, 255, 0.055) 1px, transparent 1px);
  background-size: 56px 56px, 56px 56px;
  mask-image: radial-gradient(72% 70% at 50% 45%, #000 18%, transparent 78%);
  -webkit-mask-image: radial-gradient(72% 70% at 50% 45%, #000 18%, transparent 78%);
}

/* 3D 环形照片墙：容器在舞台中心，三张截图各站 120°，整体绕 Y 轴匀速旋转 */
.shots-phase {
  position: absolute;
  inset: 0;
  transition: opacity .4s ease, transform .8s ease;
}
.shots-phase.out {
  opacity: 0;
  transform: translateY(-8px) scale(.97);
}
.shots-photo {
  position: absolute;
  left: 50%;
  top: 50%;
  width: var(--shot-w);
  height: var(--shot-h);
  margin: calc(var(--shot-h) / -2) 0 0 calc(var(--shot-w) / -2);
  transform-style: preserve-3d;
  animation: ringSpin 48s linear infinite;
}
.shots-stage:hover .shots-photo { animation-play-state: paused; }

/* 每张截图绝对定位叠在中心，再用 rotateY + translateZ 推到圆环上 */
.shots .shot-frame {
  position: absolute;
  left: 50%;
  top: 50%;
  width: var(--shot-w);
  height: var(--shot-h);
  margin: 0;
  transform-origin: 50% 50%;
  translate: -50% -50%;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  border-radius: 7px;
  background: #0b1a31;
  border: 1px solid rgba(255, 255, 255, 0.16);
  box-shadow:
    inset 0 0 0 1px rgba(255, 255, 255, 0.05),
    0 14px 28px -16px rgba(0, 0, 0, 0.65),
    0 2px 6px rgba(0, 0, 0, 0.35);
  backface-visibility: hidden;
  transition: border-color .4s ease;
}
/* 六张截图各站 60°；半径 = 0.866 × 图宽 + 66px，60° 角距下相邻图之间约留 35px 空隙 */
.shots .shot-frame:nth-child(1) { transform: rotateY(0deg) translateZ(var(--ring-r, 619px)); z-index: 3; }
.shots .shot-frame:nth-child(2) { transform: rotateY(60deg) translateZ(var(--ring-r, 619px)); z-index: 1; }
.shots .shot-frame:nth-child(3) { transform: rotateY(120deg) translateZ(var(--ring-r, 619px)); z-index: 1; }
.shots .shot-frame:nth-child(4) { transform: rotateY(180deg) translateZ(var(--ring-r, 619px)); z-index: 3; }
.shots .shot-frame:nth-child(5) { transform: rotateY(240deg) translateZ(var(--ring-r, 619px)); z-index: 1; }
.shots .shot-frame:nth-child(6) { transform: rotateY(300deg) translateZ(var(--ring-r, 619px)); z-index: 1; }

.shot-bar {
  position: relative;
  z-index: 2;
  flex: 0 0 auto;
  height: 26px;
  line-height: 26px;
  display: flex;
  align-items: center;
  gap: 5px;
  padding: 0px 10px;
  background: #162844;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}
.shot-bar i { width: 7px; height: 7px; border-radius: 50%; background: #4d6284; display: block; }
.shot-body {
  position: relative;
  flex: 0 0 auto;
  height: calc(var(--shot-h, 276px) - 54px);
  overflow: hidden;
}
.shot-body::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  border-radius: inherit;
  box-shadow:
    inset 0 0 0 1px rgba(0, 0, 0, 0.14),
    inset 0 7px 12px -9px rgba(0, 0, 0, 0.45),
    inset 7px 0 12px -11px rgba(0, 0, 0, 0.3),
    inset -7px 0 12px -11px rgba(0, 0, 0, 0.3),
    inset 0 -6px 10px -8px rgba(0, 0, 0, 0.3);
}
.shot-frame img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center top;
  transition: transform .6s ease;
}
.shot-frame figcaption {
  position: relative;
  z-index: 2;
  flex: 0 0 auto;
  height: 34px;
  line-height: 34px;
  padding: 5px 12px;
  color: rgba(255, 255, 255, 0.82);
  font-size: 12px;
  letter-spacing: 0.04em;
  line-height: 1.2;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  background: rgba(11, 26, 49, 0.92);
  border-top: 1px solid rgba(255, 255, 255, 0.06);
}
.shot-frame figcaption::before {
  content: "";
  display: inline-block;
  vertical-align: middle;
  margin-right: 7px;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--gold-2);
  box-shadow: 0 0 0 3px rgba(201, 132, 42, 0.18);
}
.shot-frame:hover img { transform: scale(1.02); }
.hero-audit {
  background:
    linear-gradient(100deg, rgba(6, 16, 36, 0.68) 0%, rgba(6, 16, 36, 0.4) 55%, rgba(6, 16, 36, 0.16) 100%),
    url("../images/banner-audit.jpg") center / cover no-repeat;
}
.hero:before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.05) 1px, transparent 1px);
  background-size: 72px 72px;
  mask-image: linear-gradient(180deg, #000, transparent 92%);
}
.hero-inner { position: relative; padding: 52px 0 36px; }
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 18px;
  color: var(--gold-2);
  letter-spacing: 0.18em;
  font-size: 13px;
}
.eyebrow:before { content: ""; width: 28px; height: 1px; background: var(--gold-2); }
h1 { margin: 0; font-size: 52px; line-height: 1.22; letter-spacing: 0.02em; font-weight: 650; }
.lead { max-width: 920px; margin: 18px 0 0; font-size: 18px; color: rgba(255,255,255,0.82); }
.hero-actions { display: flex; gap: 12px; margin-top: 20px; flex-wrap: wrap; }
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0 22px;
  border-radius: 999px;
  border: 1px solid transparent;
  cursor: pointer;
}
.btn-gold { background: linear-gradient(180deg, #e8b15d, #c9842a); color: #1b1408; font-weight: 650; }
.btn-ghost { border-color: rgba(255,255,255,0.35); color: #fff; }
.btn-blue { background: var(--blue); color: #fff; }
.btn-line { border-color: var(--line); color: var(--ink); background: #fff; }
.hero-metrics {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
  margin-top: 28px;
}
.metric {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  padding: 16px 18px;
  border: 1px solid rgba(255,255,255,0.12);
  background: rgba(255,255,255,0.05);
  border-radius: 6px;
}
.metric b { display: block; font-size: 16px; font-weight: 650; }
.metric span { display: block; margin-top: 4px; color: rgba(255,255,255,0.68); font-size: 13px; }

.section { padding: 48px 0; }
.section-paper { background: var(--paper); }
.section-ink {
  background:
    radial-gradient(600px 240px at 100% 0%, rgba(232, 177, 93, 0.32), transparent 55%),
    linear-gradient(165deg, #102a52 0%, #1a457f 100%);
  color: #fff;
}
.kicker { margin: 0 0 8px; color: var(--gold); letter-spacing: 0.16em; font-size: 13px; }
.section h2, .page-title { margin: 0; font-size: 36px; line-height: 1.3; letter-spacing: 0.02em; }
.sub { margin: 12px 0 0; max-width: 1440px; color: var(--muted); }
.card p + p, .pillar p + p, .story p + p { margin-top: 8px; }
.section-ink .sub, .section-ink .flow p { color: rgba(255,255,255,0.9); }
.head { margin-bottom: 20px; }

.cards-3, .cards-4, .cards-2 { display: grid; gap: 18px; }
.cards-3 { grid-template-columns: repeat(3, 1fr); }
.cards-4 { grid-template-columns: repeat(4, 1fr); }
.cards-2 { grid-template-columns: 1fr 1fr; }

.card {
  background: #fff;
  border: 1px solid rgba(16, 48, 96, 0.14);
  border-radius: var(--radius);
  padding: 26px 24px 24px;
  box-shadow: var(--shadow);
}
.card h3 { margin: 10px 0 8px; font-size: 22px; }
.card p { margin: 0; color: var(--muted); }
.card .more { display: inline-block; margin-top: 18px; color: var(--blue); font-weight: 650; }
.index-no { color: var(--gold); letter-spacing: 0.14em; font-size: 13px; }
.product-card { min-height: 0; padding: 0; overflow: hidden; display: flex; flex-direction: column; transition: transform .25s ease, box-shadow .25s ease; }
.product-card:hover { box-shadow: 0 6px 14px rgba(16, 42, 84, 0.08); border-color: rgba(201, 132, 42, 0.5); }
.product-card .shot { width: 100%; height: 230px; object-fit: cover; }
.product-card .pad { padding: 20px 22px 24px; display: flex; flex-direction: column; flex: 1; }
.product-card p { flex: 1; }
.product-hero { display: grid; grid-template-columns: calc(50% - 9px) calc(50% + 9px); gap: 0; margin-bottom: 18px; padding: 0; position: relative; border-radius: var(--radius); }

/* 图片层负责裁切：3D 入场动画与悬停放大都不会溢出卡片 */
.product-hero .media { position: relative; overflow: hidden; border-radius: var(--radius) 0 0 var(--radius); isolation: isolate; }
.product-hero .media .shot { display: block; position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; transition: transform .7s ease; }
.product-hero .pad { padding: 30px 28px 32px 20px; justify-content: center; min-width: 0; }
.product-hero h3 { font-size: 26px; margin: 10px 0 12px; }
.product-hero p { flex: none; font-size: 15px; line-height: 1.85; margin-bottom: 14px; }
.product-sub .product-card .shot { height: 200px; }
.product-hero:hover .media .shot, .product-sub .product-card:hover .shot { transform: scale(1.06); }
.story { background: #fff; border: 1px solid rgba(16, 48, 96, 0.14); border-radius: 6px; overflow: hidden; box-shadow: var(--shadow); }
.story img { width: 100%; height: 210px; object-fit: cover; }
.story div { padding: 18px 20px 22px; }
.story h3 { margin: 6px 0 8px; font-size: 22px; }
.story p { margin: 0; color: var(--muted); }
.frame { border-radius: 6px; overflow: hidden; border: 1px solid rgba(16, 48, 96, 0.14); box-shadow: var(--shadow); min-height: 420px; }
.frame img { width: 100%; height: 100%; min-height: 420px; object-fit: cover; }
.frame.short, .frame.short img { min-height: 340px; height: 340px; }
.duo { display: grid; grid-template-columns: 1.2fr 0.8fr; gap: 16px; }
.duo figure { margin: 0; border-radius: 6px; overflow: hidden; }
.duo img { width: 100%; height: 360px; object-fit: cover; border-radius: 6px; border: 1px solid rgba(16, 48, 96, 0.12); box-shadow: var(--shadow); }
.duo figcaption { margin-top: 10px; color: var(--muted); font-size: 13px; }
.photo-hero.banner-match { height: 520px; min-height: 520px; }
.photo-hero.banner-cases:before,
.photo-hero.banner-bright:before {
  background: linear-gradient(180deg, rgba(8, 24, 52, 0.14) 0%, rgba(8, 26, 58, 0.55) 100%);
}
.photo-hero {
  position: relative;
  color: #fff;
  min-height: 560px;
  background-position: center;
  background-size: cover;
  display: flex;
  align-items: flex-end;
}
.photo-hero:before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(8, 24, 52, 0.2) 0%, rgba(8, 26, 58, 0.72) 100%);
}
.photo-hero .wrap { position: relative; padding: 88px 0 32px; }
.photo-hero .crumbs, .photo-hero .crumbs a { color: rgba(255,255,255,0.78); }
.photo-hero .slogan { color: var(--gold-2); }
.photo-hero .sub { color: rgba(255,255,255,0.88); }
.tag-row { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 16px; }
.tag { font-size: 12px; padding: 4px 10px; border-radius: 4px; background: var(--paper); color: var(--ink-2); }
.trio { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; margin: 8px 0 16px; }
.trio img, .wide-photo {
  width: 100%;
  object-fit: cover;
  border-radius: 6px;
  display: block;
  border: 1px solid rgba(16, 48, 96, 0.12);
  box-shadow: var(--shadow);
  transition: transform .5s ease, box-shadow .4s ease;
}
.trio img { height: 210px; }
.wide-photo { height: 360px; margin-top: 8px; }
.trio img:hover, .wide-photo:hover { transform: scale(1.02); box-shadow: 0 6px 16px rgba(16, 42, 84, 0.08); }

.flow { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0; }
.flow article {
  padding: 28px 26px;
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.16);
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.08);
}
.flow article:first-child { border-radius: 6px 0 0 6px; }
.flow article:last-child { border-radius: 0 6px 6px 0; }
.flow h3 { margin: 8px 0; font-size: 22px; }
.flow p { margin: 0; }

.split { display: grid; grid-template-columns: 0.9fr 1.1fr; gap: 48px; align-items: center; }
.checklist { list-style: none; margin: 22px 0 0; padding: 0; }
.checklist li { position: relative; padding: 10px 0 10px 28px; border-bottom: 1px solid var(--line); }
.checklist li:before { content: ""; position: absolute; left: 0; top: 18px; width: 10px; height: 10px; border-radius: 50%; background: var(--gold); }

.pillar { background: #fff; border-radius: var(--radius); padding: 22px; border: 1px solid rgba(16, 48, 96, 0.14); border-top: 3px solid var(--gold); box-shadow: var(--shadow); }
.pillar h3 { margin: 0 0 8px; font-size: 18px; }
.pillar p, .pillar li { color: var(--muted); }
.pillar ul { margin: 0; padding-left: 18px; }

.quote {
  margin: 0;
  padding: 28px 32px;
  border: 1px solid rgba(16, 48, 96, 0.14);
  border-left: 3px solid var(--gold);
  background: #fff;
  border-radius: 0 6px 6px 0;
  font-size: 20px;
  line-height: 1.6;
  box-shadow: var(--shadow);
}

.logo-wall { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; }
.logo-wall span {
  display: flex; align-items: center; justify-content: center; min-height: 72px;
  background: #fff; border: 1px solid rgba(16, 48, 96, 0.14); border-radius: 6px;
  box-shadow: var(--shadow);
  color: var(--ink-2); font-weight: 650; text-align: center; padding: 8px 10px;
}

.page-hero { padding: 32px 0 12px; background: linear-gradient(180deg, #f7f4ee, #fff 80%); }
.crumbs { margin: 0; color: var(--muted); font-size: 14px; font-weight: 600; }
.crumbs a { color: var(--blue); }
.about-lead { padding-top: 36px; }
.about-lead > .split { align-items: start; grid-template-columns: 1fr 1fr; }
.about-side { display: flex; flex-direction: column; gap: 18px; }
.about-side .card { padding: 22px 22px 24px; }
.about-figure { position: relative; margin: 0; border-radius: 6px; overflow: hidden; border: 1px solid rgba(16, 48, 96, 0.12); box-shadow: var(--shadow); }
.about-figure img { display: block; width: 100%; height: 236px; object-fit: cover; transition: transform .7s ease; }
.about-figure:hover img { transform: scale(1.04); }
.about-figure figcaption { position: absolute; left: 0; right: 0; bottom: 0; padding: 24px 16px 11px; color: #fff; font-size: 13px; letter-spacing: 0.05em; background: linear-gradient(180deg, rgba(8, 24, 52, 0), rgba(8, 24, 52, 0.72)); }
.company-photo { position: relative; margin: 22px 0 0; border-radius: 6px; overflow: hidden; border: 1px solid rgba(16, 48, 96, 0.12); box-shadow: var(--shadow); }
.company-photo img { display: block; width: 100%; height: 220px; object-fit: cover; transition: transform .7s ease; }
.company-photo:hover img { transform: scale(1.04); }
.company-photo figcaption { position: absolute; left: 0; right: 0; bottom: 0; padding: 24px 16px 11px; color: #fff; font-size: 13px; letter-spacing: 0.05em; background: linear-gradient(180deg, rgba(8, 24, 52, 0), rgba(8, 24, 52, 0.72)); }
.about-copy p { max-width: none; }
.value-cards { gap: 20px; }
.value-card { padding: 0; overflow: hidden; min-height: 0; display: flex; flex-direction: column; }
.value-card img { display: block; width: 100%; height: 132px; object-fit: cover; transition: transform .7s ease; }
.value-card:hover img { transform: scale(1.05); }
.value-card .pad { padding: 18px 20px 22px; display: flex; flex-direction: column; flex: 1; }
.value-card .pad h3 { display: block; font-size: 19px; margin: 0 0 8px; }
.value-card .pad p { margin: 0; color: var(--muted); font-size: 14px; line-height: 1.8; flex: 1; }
.section-flush { padding-top: 26px; }
.crumb-bar { background: #f6f3ec; border-bottom: 1px solid var(--line); }
.crumb-bar .crumbs { padding: 12px 0; }
.slogan { margin: 14px 0 0; font-size: 18px; color: var(--blue); letter-spacing: 0.08em; }

.slash-line { margin: 14px 0 0; color: rgba(255,255,255,0.84); font-size: 15px; display: flex; flex-wrap: wrap; row-gap: 2px; }
.slash-line span + span:before { content: " / "; color: var(--gold-2); }
.cap-tabs { display: flex; flex-wrap: wrap; gap: 0; border-bottom: 1px solid var(--line); margin: 4px 0 22px; }
.cap-tabs button {
  background: transparent;
  border: 0;
  border-bottom: 2px solid transparent;
  margin-bottom: -1px;
  padding: 12px 18px;
  cursor: pointer;
  color: var(--muted);
}
.cap-tabs button.on { color: var(--blue); border-bottom-color: var(--blue); font-weight: 650; }
.cap-panel { display: none; }
.cap-panel.on { display: grid; grid-template-columns: 1fr 1fr; gap: 16px 40px; animation: panel-in .55s cubic-bezier(.16, 1, .3, 1); }
@keyframes panel-in {
  from { opacity: 0; transform: translateX(64px); }
  to { opacity: 1; transform: none; }
}
.feat { background: #fff; border: 1px solid rgba(16, 48, 96, 0.14); border-radius: 6px; padding: 16px 18px; box-shadow: var(--shadow); }
.feat h3 { margin: 0 0 6px; font-size: 18px; }
.feat p { margin: 0; color: var(--muted); }
.matrix { width: 100%; border-collapse: collapse; background: #fff; border-radius: 6px; overflow: hidden; box-shadow: var(--shadow); border: 1px solid rgba(16, 48, 96, 0.14); color: var(--text); }
.matrix th, .matrix td { padding: 14px 16px; text-align: left; border-bottom: 1px solid var(--line); vertical-align: top; }
.matrix th { background: var(--ink); color: #fff; font-weight: 600; }
.matrix th:first-child, .matrix td:first-child { white-space: nowrap; }
.matrix-2col th:first-child { width: 24%; }
.matrix-3col th:first-child { width: 14%; }
.matrix-3col th:nth-child(2) { width: 16%; }
.matrix td { color: var(--text); }
.matrix tr:last-child td { border-bottom: 0; }

.filters { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 22px; }
.filters button {
  border: 1px solid var(--line); background: #fff; border-radius: 999px; padding: 8px 14px; cursor: pointer; color: var(--ink-2);
}
.filters button.on { background: var(--ink); color: #fff; border-color: var(--ink); }
.case-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
.case-item { background: #fff; border: 1px solid rgba(16, 48, 96, 0.14); border-radius: 6px; padding: 20px; box-shadow: var(--shadow); }
.case-item small { color: var(--gold); letter-spacing: 0.08em; }
.case-item h3 { margin: 6px 0; font-size: 18px; }
.case-ico { width: 22px; height: 22px; flex: 0 0 22px; color: var(--blue); }
.case-item[data-org="enterprise"] .case-ico { color: var(--gold); }
.case-item[data-org="enterprise"] small { color: var(--blue); }
.case-more { margin-top: 20px; color: var(--muted); font-size: 14px; text-align: center; }
.feature-case { display: grid; grid-template-columns: 1.2fr 0.8fr; gap: 18px; margin-bottom: 22px; }
.stat-box { background: var(--ink); color: #fff; border-radius: 6px; padding: 24px; display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.stat-box b { display: block; font-size: 28px; color: var(--gold-2); }
.stat-box span { color: rgba(255,255,255,0.75); font-size: 13px; }

.form { display: grid; gap: 14px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
label { display: block; font-size: 13px; color: var(--muted); margin-bottom: 6px; }
input, textarea, select {
  width: 100%; border: 1px solid var(--line); background: #fff; border-radius: 6px; padding: 12px 14px; color: var(--text);
}
textarea { min-height: 140px; resize: vertical; }
.note { font-size: 13px; color: var(--muted); }

.contact-grid { display: grid; grid-template-columns: 0.8fr 1.2fr; gap: 22px; }
.contact-card { background: var(--ink); color: #fff; border-radius: 6px; padding: 28px; border: 1px solid rgba(227, 162, 74, 0.35); box-shadow: var(--shadow); }
.contact-card a { color: var(--gold-2); }
.contact-card p { margin: 0 0 16px; color: rgba(255,255,255,0.78); }

/* 留言查询（内部页） */
.msg-page { background: linear-gradient(180deg, #f7f9fc 0%, #fff 42%); }
.msg-wrap { max-width: 1440px; }
.msg-hero {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 16px;
  padding: 22px 24px;
  border: 1px solid var(--line);
  background:
    linear-gradient(120deg, rgba(21, 74, 148, 0.06), transparent 48%),
    #fff;
}
.msg-hero h1 { margin: 8px 0 6px; font-size: 28px; line-height: 1.25; color: var(--ink); }
.msg-hero p { margin: 0; color: var(--muted); max-width: 60ch; }
.msg-badge {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 999px;
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--blue);
  background: rgba(21, 74, 148, 0.1);
  border: 1px solid rgba(21, 74, 148, 0.16);
}
.msg-actions { display: flex; gap: 10px; flex-shrink: 0; }
.msg-login { padding: 22px 24px; margin-bottom: 16px; }
.msg-login-row { display: flex; align-items: center; gap: 14px; flex-wrap: wrap; }
.msg-panel { padding: 0; overflow: hidden; }
.msg-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 14px 18px;
  border-bottom: 1px solid var(--line);
  background: #fbfcfe;
}
.msg-toolbar-left { display: flex; align-items: baseline; gap: 10px; }
.msg-toolbar-left strong { color: var(--ink); font-size: 15px; }
.msg-toolbar-tip { font-size: 13px; color: var(--muted); }
.msg-pagesize { font-size: 13px; color: var(--muted); }
.msg-pagesize select {
  width: auto;
  display: inline-block;
  padding: 6px 10px;
  margin: 0 4px;
  background: #fff;
}
.msg-table-wrap {
  overflow-x: auto;
  padding: 16px 18px 8px;
}
.msg-table {
  width: 100%;
  border-collapse: collapse;
  border: 1px solid #c5d2e4;
  min-width: 1100px;
  font-size: 14px;
  background: #fff;
}
.msg-table thead th {
  position: sticky;
  top: 0;
  z-index: 1;
  padding: 14px 18px;
  text-align: left;
  font-weight: 650;
  font-size: 13px;
  letter-spacing: 0.02em;
  color: #fff;
  background: linear-gradient(180deg, #1d4eae, #154a94);
  border: 1px solid #123a7a;
  white-space: nowrap;
}
.msg-table tbody td {
  padding: 16px 18px;
  vertical-align: top;
  border: 1px solid #c5d2e4;
  color: var(--text);
  line-height: 1.65;
  background: #fff;
}
.msg-table tbody tr:nth-child(even) td { background: #eef3f9; }
.msg-table tbody tr:nth-child(odd) td { background: #fff; }
.msg-table tbody tr:hover td { background: #e4edf8; }
.msg-table .col-id { width: 68px; color: var(--muted); font-variant-numeric: tabular-nums; }
.msg-table .col-time { width: 148px; white-space: nowrap; color: var(--muted); font-variant-numeric: tabular-nums; }
.msg-table .col-name { width: 88px; font-weight: 650; color: var(--ink); white-space: nowrap; }
.msg-table .col-org { max-width: 140px; }
.msg-table .col-phone { width: 120px; white-space: nowrap; font-variant-numeric: tabular-nums; }
.msg-table .col-product { max-width: 130px; }
.msg-table .col-msg { width: 38%; min-width: 360px; max-width: 520px; color: #334155; }
.msg-table .col-ip { width: 120px; color: var(--muted); font-family: ui-monospace, Consolas, monospace; font-size: 12px; white-space: nowrap; }
.msg-table .col-org,
.msg-table .col-product,
.msg-table .col-msg {
  overflow: hidden;
  text-overflow: ellipsis;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  white-space: normal;
}
.msg-empty { padding: 48px 20px; text-align: center; color: var(--muted); }
.msg-pager {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 14px;
  padding: 14px 18px 16px;
  border-top: 1px solid var(--line);
  background: #fbfcfe;
}
.msg-page-info { font-size: 14px; color: var(--muted); }
.msg-panel > .note { padding: 0 18px 14px; }

.site-footer { background: #0e2748; color: rgba(255,255,255,0.84); padding: 40px 0 18px; }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 28px 24px; }
.site-footer h4 { margin: 0 0 12px; color: #fff; font-size: 15px; }
.footer-grid > div:first-child h4 { font-size: 18px; font-weight: 650; letter-spacing: 0.02em; margin-bottom: 10px; }
.footer-grid > div:not(:first-child) h4 {
  font-size: 16px;
  font-weight: 650;
  letter-spacing: 0.06em;
  color: #fff;
  margin-bottom: 12px;
}
.footer-grid > div:first-child p { margin: 0 0 8px; font-size: 13px; line-height: 1.7; color: rgba(255,255,255,0.58); }
.footer-grid > div:first-child p:last-child {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  margin: 0;
  font-size: 14px;
  color: rgba(255,255,255,0.84);
}
.footer-grid > div:first-child p:last-child::before,
.site-footer a[href^="tel:"]::before,
.site-footer a[href^="mailto:"]::before {
  content: "";
  width: 16px;
  height: 16px;
  flex: 0 0 16px;
  margin-top: 2px;
  background: var(--gold-2);
}
.footer-grid > div:first-child p:last-child::before {
  -webkit-mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23000' stroke-width='1.8'%3E%3Cpath d='M12 21s7-6.2 7-11a7 7 0 1 0-14 0c0 4.8 7 11 7 11z'/%3E%3Ccircle cx='12' cy='10' r='2.2'/%3E%3C/svg%3E") center / 16px 16px no-repeat;
  mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23000' stroke-width='1.8'%3E%3Cpath d='M12 21s7-6.2 7-11a7 7 0 1 0-14 0c0 4.8 7 11 7 11z'/%3E%3Ccircle cx='12' cy='10' r='2.2'/%3E%3C/svg%3E") center / 16px 16px no-repeat;
}
.site-footer a { display: flex; align-items: center; gap: 8px; padding: 5px 0; color: rgba(255,255,255,0.78); font-size: 14px; }
.site-footer a:hover { color: #fff; }
.site-footer a[href^="tel:"]::before {
  -webkit-mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23000' stroke-width='1.8'%3E%3Cpath d='M6 4h3l2 4-2 1a12 12 0 0 0 6 6l1-2 4 2v3a2 2 0 0 1-2 2A16 16 0 0 1 4 6a2 2 0 0 1 2-2z'/%3E%3C/svg%3E") center / 16px 16px no-repeat;
  mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23000' stroke-width='1.8'%3E%3Cpath d='M6 4h3l2 4-2 1a12 12 0 0 0 6 6l1-2 4 2v3a2 2 0 0 1-2 2A16 16 0 0 1 4 6a2 2 0 0 1 2-2z'/%3E%3C/svg%3E") center / 16px 16px no-repeat;
}
.site-footer a[href^="mailto:"]::before {
  -webkit-mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23000' stroke-width='1.8'%3E%3Cpath d='M4 6h16v12H4zM4 7l8 6 8-6'/%3E%3C/svg%3E") center / 16px 16px no-repeat;
  mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23000' stroke-width='1.8'%3E%3Cpath d='M4 6h16v12H4zM4 7l8 6 8-6'/%3E%3C/svg%3E") center / 16px 16px no-repeat;
}
.site-footer a[href^="tel:"]::before,
.site-footer a[href^="mailto:"]::before { margin-top: 0; }
.legal { margin-top: 28px; padding-top: 14px; border-top: 1px solid rgba(255,255,255,0.08); font-size: 12px; color: rgba(255,255,255,0.45); display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap; }
.legal a { display: inline; padding: 0; font-size: 12px; color: rgba(255,255,255,0.45); }

.ico {
  width: 28px;
  height: 28px;
  border-radius: 6px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex: 0 0 auto;
  background: rgba(18, 58, 143, 0.08);
  color: var(--blue);
}
.ico svg { width: 18px; height: 18px; }
.case-item .ico,
.case-item .ico svg { width: 20px; height: 20px; flex: 0 0 20px; }
.case-org.gov { color: var(--blue); }
.case-org.enterprise { color: var(--gold); }
.software-cards h3 { grid-template-columns: 28px minmax(0, 1fr); gap: 12px; }
.software-cards .ico { width: 28px; height: 28px; border-radius: 4px; }
.software-cards .ico svg { width: 24px; height: 24px; }
.software-more { margin-top: 18px; }
.software-more .card { min-height: 0; padding: 18px 20px; display: flex; align-items: center; }
.software-more h3 { margin: 0; }
.cap-panel .feat h3,
.feat h3, .card > h3:not(:only-child), .flow h3 {
  display: grid;
  grid-template-columns: 28px minmax(0, 1fr);
  align-items: center;
  gap: 8px;
}
.software-cards h3 { grid-template-columns: 28px minmax(0, 1fr); display: grid; align-items: center; gap: 12px; }
.section-ink .ico, .metric .ico { background: rgba(227, 162, 74, 0.16); color: var(--gold-2); }
.metric .ico { margin-bottom: 10px; }
.case-item p { margin: 0; color: var(--muted); font-size: 14px; }
.client-wall span { padding-left: 16px; }
.wall-ico { width: 20px; height: 20px; flex: 0 0 20px; display: inline-flex; }
.wall-ico.gov { background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23154a94' stroke-width='1.7' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M3 21h18M5 21V10M9 21V10M15 21V10M19 21V10M12 3 3 8h18Z'/%3E%3C/svg%3E") center / 20px 20px no-repeat; }
.wall-ico.enterprise { background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23c9842a' stroke-width='1.7' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M3 21h18M4 21V5h9v16M13 9h7v12M7 9h2M7 13h2M7 17h2M16 12h1M16 16h1'/%3E%3C/svg%3E") center / 20px 20px no-repeat; }
.client-wall .wall-more { justify-content: center; padding-left: 10px; color: var(--muted); font-weight: 600; background: transparent; border-style: dashed; box-shadow: none; }
.client-wall span:before { display: none !important; content: none !important; }
.kicker { display: flex; align-items: center; gap: 8px; }
.kicker:before {
  content: "";
  width: 8px;
  height: 8px;
  border-radius: 2px;
  background: var(--gold);
}
.logo-wall span { gap: 8px; }
.hero-carousel .hero-inner > *:not(.hero-metrics),
.photo-hero .wrap > * { animation: enter-up .9s cubic-bezier(.16, 1, .3, 1) both; }
.hero-carousel .hero-inner > *:nth-child(2),
.photo-hero .wrap > *:nth-child(2) { animation-delay: .16s; }
.hero-carousel .hero-inner > *:nth-child(3),
.photo-hero .wrap > *:nth-child(3) { animation-delay: .32s; }
.hero-carousel .hero-inner > *:nth-child(4),
.photo-hero .wrap > *:nth-child(4) { animation-delay: .48s; }
.hero-carousel .hero-inner > *:nth-child(5),
.photo-hero .wrap > *:nth-child(5) { animation-delay: .64s; }
.hero-carousel .metric { animation: enter-pop .8s cubic-bezier(.16, 1, .3, 1) both; }
.hero-carousel .metric:nth-child(1) { animation-delay: .55s; }
.hero-carousel .metric:nth-child(2) { animation-delay: .7s; }
.hero-carousel .metric:nth-child(3) { animation-delay: .85s; }
.hero-carousel .metric:nth-child(4) { animation-delay: 1s; }
@keyframes enter-up {
  from { opacity: 0; transform: translateY(72px); filter: blur(10px); }
  to { opacity: 1; transform: none; filter: blur(0); }
}
@keyframes enter-pop {
  0% { opacity: 0; transform: translateY(40px) scale(.72); }
  65% { opacity: 1; transform: translateY(0) scale(1.06); }
  100% { opacity: 1; transform: none; }
}
.head h2 { display: inline-block; }
.head h2:after {
  content: "";
  display: block;
  height: 3px;
  width: 0;
  margin-top: 8px;
  background: linear-gradient(90deg, var(--gold), var(--blue));
}
.head.in h2:after { width: 96px; transition: width .55s ease .2s; }
.m { opacity: 0; }
.m-up { transform: translateY(88px) scale(.9); }
.m-left { transform: translateX(-96px) rotate(-1.5deg); }
.m-right { transform: translateX(96px) rotate(1.5deg); }
.m-zoom { transform: scale(.86); }
.m-photo { opacity: 1; transform: scale(1.03); }
.m-flip { transform: perspective(700px) rotateX(18deg) translateY(36px); transform-origin: center top; }
.m.in { opacity: 1; transform: none; transition: transform .9s cubic-bezier(.16, 1, .3, 1), opacity .7s ease, box-shadow .28s ease; }
.m.in.m-pop { animation: enter-pop .75s cubic-bezier(.16, 1, .3, 1) both; }
.m .ico { opacity: 0; transform: scale(.2) rotate(-18deg); transition: opacity .45s ease .12s, transform .6s cubic-bezier(.16, 1, .3, 1) .12s; }
.m.in .ico { opacity: 1; transform: none; margin-right: 8px; }
.card, .pillar, .feat, .case-item, .story { position: relative; }
.card:after, .pillar:after, .feat:after, .case-item:after {
  content: "";
  position: absolute;
  left: 0; right: 0; bottom: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--gold), var(--blue));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .4s ease;
}
.card:hover:after, .pillar:hover:after, .feat:hover:after, .case-item:hover:after { transform: scaleX(1); }
.product-card .shot, .story img, .shot-frame img, .frame img, .duo img {
  transition: transform .7s ease;
}
.product-card:hover .shot, .story:hover img, .shot-frame:hover img, .frame:hover img, .duo figure:hover img {
  transform: scale(1.08);
}
.card, .product-card, .pillar, .story, .feat, .case-item, .logo-wall span {
  transition: transform .28s ease, box-shadow .28s ease, border-color .28s ease;
}
.feat:hover, .case-item:hover, .logo-wall span:hover, .pillar:hover, .card:hover, .story:hover, .shot-frame:hover {
  border-color: rgba(201, 132, 42, 0.5);
  box-shadow: 0 6px 14px rgba(16, 42, 84, 0.08);
}
.m:not(.in) { transition: opacity .7s ease, transform .95s cubic-bezier(.16, 1, .3, 1); }
.matrix-wrap { overflow-x: auto; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .m, .hero-carousel .hero-inner > *, .hero-carousel .metric, .photo-hero .wrap > *,
  .hero-carousel .slide, .cap-panel.on,
  .card, .product-card, .pillar, .story, .feat, .case-item, .logo-wall span {
    animation: none; opacity: 1; transform: none; transition: none;
  }
  .hero-carousel .slide { opacity: 0; }
  .hero-carousel .slide.on { opacity: 1; }
}

@media (max-width: 980px) {
  .wrap { width: min(var(--max), calc(100% - 32px)); }
  h1 { font-size: 34px; }
  .hero-inner, .hero-carousel .hero-inner { padding: 28px 0 20px; }
  .section { padding: 36px 0; }
  .photo-hero .wrap { padding: 64px 0 24px; }
  .section h2 { font-size: 28px; }
  .hero-metrics, .cards-4, .logo-wall, .case-grid, .footer-grid, .trio { grid-template-columns: 1fr 1fr; }
  .cards-3, .flow, .split, .feature-case, .contact-grid, .cards-2, .form-row, .duo, .product-sub, .product-hero { grid-template-columns: 1fr; }
  .msg-hero { flex-direction: column; align-items: flex-start; }
  .msg-toolbar { flex-direction: column; align-items: flex-start; }
  .product-hero .shot { min-height: 260px; }
  .product-hero .pad { padding: 24px 22px 28px; }
  .hero-carousel h1 { font-size: 28px; white-space: normal; letter-spacing: 0.02em; }
  .hero-carousel .hero-slogan { font-size: 20px; letter-spacing: 0.03em; }
  .hero-arrow { display: none; }
  .cap-panel.on { grid-template-columns: 1fr; }
  .shots {
    padding: 0;
  }
  /* 环半径 = 0.866 × 图宽 + 40px，左右邻位之间留出约 35px 空隙 */
  .shots-stage {
    --shot-w: 156px;
    --shot-h: 144px;
    --ring-r: calc(156px * 0.866 + 40px);
    height: 176px;
    overflow: hidden;
    perspective: 1200px;
    perspective-origin: 50% 50%;
  }
  .shots-photo {
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    margin: 0;
    animation-duration: 36s;
  }
  .shots .shot-frame,
  .shots .shot-frame:nth-child(1) {
    position: absolute;
    left: 50%;
    top: 50%;
    width: var(--shot-w);
    height: var(--shot-h);
    margin: 0;
    translate: -50% -50%;
    animation: none;
  }
  .shots .shot-frame:nth-child(1) { transform: rotateY(0deg) translateZ(var(--ring-r)); }
  .shots .shot-frame:nth-child(2) { transform: rotateY(60deg) translateZ(var(--ring-r)); }
  .shots .shot-frame:nth-child(3) { transform: rotateY(120deg) translateZ(var(--ring-r)); }
  .shots .shot-frame:nth-child(4) { transform: rotateY(180deg) translateZ(var(--ring-r)); }
  .shots .shot-frame:nth-child(5) { transform: rotateY(240deg) translateZ(var(--ring-r)); }
  .shots .shot-frame:nth-child(6) { transform: rotateY(300deg) translateZ(var(--ring-r)); }
  .shots .shot-frame .shot-bar { height: 17px; padding: 0 7px; }
  .shots .shot-frame .shot-bar i { width: 4px; height: 4px; }
  .shots .shot-frame .shot-body { height: calc(var(--shot-h) - 38px); aspect-ratio: auto; }
  .shots .shot-frame figcaption { height: 21px; padding: 0 8px; font-size: 10px; }
  .shots .shot-frame figcaption::before { margin-right: 5px; }
  .hero-carousel,
  .photo-hero.banner-match { height: auto; min-height: 460px; }
  .photo-hero { min-height: 460px; }
  .duo img, .frame, .frame img { min-height: 240px; height: 240px; }
  .flow article, .flow article:first-child, .flow article:last-child { border-radius: 0; }
  .nav-toggle { display: inline-flex; align-items: center; justify-content: center; }
  .nav {
    display: none;
    position: absolute;
    top: var(--header);
    left: 0; right: 0;
    flex-direction: column;
    align-items: stretch;
    padding: 12px 16px 18px;
    background: #fff;
    border-bottom: 1px solid var(--line);
  }
  .nav.open { display: flex; }
  .menu-panel { position: static; width: auto; box-shadow: none; border: 0; padding: 0 0 0 8px; }
  .nav-phone { margin: 8px 0 0; text-align: center; }
  .site-header { height: auto; }
  .header-inner { min-height: var(--header); }
  .wide-photo { height: 220px; }
  .matrix { min-width: 640px; }
}

@media (max-width: 640px) {
  h1, .hero-carousel h1 { font-size: 30px; }
  .hero-metrics, .cards-4, .logo-wall, .case-grid, .footer-grid, .trio, .stat-box { grid-template-columns: 1fr; }
  .cap-tabs { overflow-x: auto; flex-wrap: nowrap; }
  .cap-tabs button { white-space: nowrap; }
  .lead, .sub { font-size: 15px; }
  .legal { flex-direction: column; }
  .hero-metrics { margin-top: 28px; }
  .hero-actions { margin-top: 20px; }
  .slash-line { font-size: 13px; line-height: 1.8; }
}