/* ==========================================================
   贺州跨税通科技有限公司 · 企业官网
   视觉基调：取自品牌 PPT —— 中国红 + 斜切色带 + 虚线卡片 + 书法标语
   ========================================================== */

:root {
  --red: #c8102e;
  --red-dark: #9e0b20;
  --red-deep: #7a0818;
  --red-light: #fdf1f2;
  --red-grad: linear-gradient(120deg, #e2545f 0%, #c8102e 55%, #9e0b20 100%);
  --pill-grad: linear-gradient(90deg, #e0707a 0%, #b00e21 100%);
  --ink: #17181a;
  --gray: #6e7480;
  --gray-light: #9aa0aa;
  --line: #e6e8ec;
  --bg: #f6f7f9;
  --card: #ffffff;
  --blue: #1b4b8f;
  --green: #1f7a4d;
  --shadow: 0 10px 30px rgba(23, 24, 26, .08);
  --shadow-red: 0 12px 28px rgba(200, 16, 46, .22);
  --font-serif: "Noto Serif SC", "Source Han Serif SC", "STZhongsong", "SimSun", serif;
  --font-kai: "Xingkai SC", "STXingkai", "KaiTi", "STKaiti", cursive;
  --font-sans: "Microsoft YaHei", "PingFang SC", "Helvetica Neue", Arial, sans-serif;
  --header-h: 72px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-sans);
  color: var(--ink);
  background: var(--bg);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
button { font-family: inherit; cursor: pointer; }

.container { width: min(1200px, 92%); margin: 0 auto; }

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

/* ---------- 通用组件 ---------- */

.ico {
  width: 1em; height: 1em;
  fill: none; stroke: currentColor;
  stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round;
  vertical-align: -0.12em;
}

.ico-round {
  display: inline-flex; align-items: center; justify-content: center;
  width: 64px; height: 64px; border-radius: 50%;
  background: var(--red-grad); color: #fff;
  font-size: 30px; flex: none;
  box-shadow: var(--shadow-red);
}
.ico-round.line {
  background: #fff; color: var(--red);
  border: 2px solid var(--red); box-shadow: none;
}
.ico-round.soft {
  background: var(--red-light); color: var(--red); box-shadow: none;
}

.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 13px 32px; border-radius: 999px;
  font-size: 16px; font-weight: 700; letter-spacing: 1px;
  border: 2px solid transparent; transition: .25s;
}
.btn-red { background: var(--red-grad); color: #fff; box-shadow: var(--shadow-red); }
.btn-red:hover { transform: translateY(-3px); box-shadow: 0 16px 34px rgba(200, 16, 46, .32); }
.btn-ghost { border-color: var(--red); color: var(--red); background: #fff; }
.btn-ghost:hover { background: var(--red); color: #fff; }
.btn-white { background: #fff; color: var(--red); }
.btn-white:hover { transform: translateY(-3px); box-shadow: 0 14px 30px rgba(0, 0, 0, .18); }
.btn-line { border-color: rgba(255, 255, 255, .85); color: #fff; background: transparent; }
.btn-line:hover { background: #fff; color: var(--red); }

.pill {
  display: block; width: 100%;
  padding: 12px 22px; border-radius: 8px;
  background: var(--pill-grad); color: #fff;
  font-weight: 700; text-align: center; letter-spacing: .5px;
  box-shadow: 0 6px 16px rgba(176, 14, 33, .25);
}

.dashed-card {
  border: 2px dashed var(--red);
  border-radius: 12px;
  background: #fff;
  padding: 34px 30px;
}

.hl { color: var(--red); font-weight: 700; }

/* ---------- 区块标题（PPT 斜切色带风格） ---------- */

section { padding: 92px 0; position: relative; scroll-margin-top: calc(var(--header-h) + 8px); }
section:nth-of-type(even) { background: #fff; }

.sec-head { margin-bottom: 52px; }
.sec-kicker { display: flex; align-items: flex-start; gap: 0; margin-bottom: 22px; }
.sec-kicker .k {
  display: inline-block; padding: 9px 34px 9px 26px;
  transform: skewX(-18deg); color: #fff;
  font-weight: 700; letter-spacing: 3px; font-size: 15px;
}
.sec-kicker .k > span { display: inline-block; transform: skewX(18deg); }
.sec-kicker .k-red { background: linear-gradient(90deg, #d2202f, #a00e1e); box-shadow: 6px 6px 0 rgba(23, 24, 26, .12); }
.sec-kicker .k-gray { background: #6e7480; margin-left: -6px; margin-top: 34px; font-size: 13px; padding: 6px 26px 6px 20px; }

.sec-title {
  font-family: var(--font-serif);
  font-size: clamp(28px, 3.6vw, 42px);
  font-weight: 900; letter-spacing: 2px; line-height: 1.35;
}
.sec-title em { font-style: normal; color: var(--red); }
.sec-lead { margin-top: 14px; color: var(--gray); font-size: 17px; max-width: 860px; }
.sec-head.center { text-align: center; }
.sec-head.center .sec-kicker { justify-content: center; }
.sec-head.center .sec-lead { margin-left: auto; margin-right: auto; }

/* ---------- 顶部导航 ---------- */

.site-header {
  position: fixed; inset: 0 0 auto 0; z-index: 100;
  height: var(--header-h);
  background: rgba(255, 255, 255, .92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid transparent;
  transition: .3s;
}
.site-header.scrolled { border-bottom-color: var(--line); box-shadow: 0 6px 20px rgba(23, 24, 26, .07); }
.site-header .container { width: min(1400px, 94%); }
.site-header::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: -3px; height: 3px;
  background: linear-gradient(90deg, var(--red) 0 220px, transparent 220px);
}

.header-inner { height: var(--header-h); display: flex; align-items: center; gap: 28px; }

.brand { display: flex; align-items: center; gap: 12px; margin-right: auto; }
.brand-logo { height: 46px; width: auto; flex: none; object-fit: contain; }
.brand-name { font-family: var(--font-serif); font-weight: 900; font-size: 19px; letter-spacing: 1px; line-height: 1.2; white-space: nowrap; }
.brand-name small { display: block; font-family: var(--font-sans); font-weight: 400; font-size: 11px; color: var(--gray); letter-spacing: 2.5px; }

.main-nav { display: flex; align-items: center; gap: 4px; }
.main-nav a {
  position: relative; padding: 8px 14px;
  font-size: 15.5px; font-weight: 600; color: #3c4046;
  white-space: nowrap; transition: color .2s;
}
.main-nav a::after {
  content: ""; position: absolute; left: 14px; right: 14px; bottom: 0;
  height: 3px; border-radius: 2px; background: var(--red);
  transform: scaleX(0); transition: transform .25s;
}
.main-nav a:hover, .main-nav a.active { color: var(--red); }
.main-nav a:hover::after, .main-nav a.active::after { transform: scaleX(1); }

.header-cta { padding: 9px 24px; font-size: 14.5px; flex: none; white-space: nowrap; }

.nav-toggle {
  display: none; width: 44px; height: 44px;
  background: none; border: 0; position: relative;
}
.nav-toggle span, .nav-toggle span::before, .nav-toggle span::after {
  content: ""; position: absolute; left: 10px; right: 10px; height: 2.5px;
  border-radius: 2px; background: var(--ink); transition: .25s;
}
.nav-toggle span { top: 21px; }
.nav-toggle span::before { left: 0; right: 0; top: -8px; }
.nav-toggle span::after { left: 0; right: 0; top: 8px; }
body.nav-open .nav-toggle span { background: transparent; }
body.nav-open .nav-toggle span::before { transform: translateY(8px) rotate(45deg); }
body.nav-open .nav-toggle span::after { transform: translateY(-8px) rotate(-45deg); }

/* ---------- Hero ---------- */

.hero {
  position: relative; overflow: hidden;
  padding: calc(var(--header-h) + 84px) 0 96px;
  background: #f2f3f5;
}
.hero::before, .hero::after {
  content: ""; position: absolute; background: #fff;
  box-shadow: 0 20px 60px rgba(23, 24, 26, .06);
}
.hero::before { width: 560px; height: 560px; left: -140px; top: -260px; transform: rotate(45deg); border-radius: 60px; }
.hero::after { width: 640px; height: 640px; right: -220px; bottom: -320px; transform: rotate(45deg); border-radius: 70px; }
.hero-deco {
  position: absolute; width: 420px; height: 420px;
  left: 50%; top: 40%; transform: translate(-50%, -50%) rotate(45deg);
  background: #fbfbfc; border-radius: 56px; z-index: 0;
}
.hero .container { position: relative; z-index: 1; text-align: center; }

.hero-title {
  font-family: var(--font-serif);
  font-size: clamp(38px, 6vw, 72px);
  font-weight: 900; color: var(--red);
  letter-spacing: 6px; line-height: 1.2;
  text-shadow: 0 4px 18px rgba(200, 16, 46, .15);
}
.hero-slogan {
  margin-top: 26px;
  font-family: var(--font-kai);
  font-size: clamp(26px, 3.6vw, 44px);
  letter-spacing: 8px; color: #101114;
}
.hero-sub { margin-top: 22px; font-size: clamp(15px, 1.6vw, 20px); font-weight: 700; letter-spacing: 2px; color: #2b2d31; }

.hero-services {
  margin: 52px auto 0; display: flex; justify-content: center;
  gap: clamp(24px, 5vw, 72px); flex-wrap: wrap;
}
.hero-services li { width: 96px; }
.hero-services .ico-round { width: 76px; height: 76px; font-size: 36px; transition: .3s; }
.hero-services li:hover .ico-round { transform: translateY(-8px) scale(1.05); }
.hero-services p { margin-top: 12px; font-weight: 700; letter-spacing: 1px; }

.hero-actions { margin-top: 48px; display: flex; justify-content: center; gap: 18px; flex-wrap: wrap; }

.hero-stats {
  margin-top: 64px; display: grid;
  grid-template-columns: repeat(4, 1fr);
  background: #fff; border-radius: 16px;
  box-shadow: var(--shadow); overflow: hidden;
}
.hero-stats li { padding: 26px 12px; text-align: center; position: relative; }
.hero-stats li + li::before {
  content: ""; position: absolute; left: 0; top: 22%; bottom: 22%;
  width: 1px; background: var(--line);
}
.hero-stats b {
  display: block; font-family: var(--font-serif);
  font-size: 34px; color: var(--red); line-height: 1.2;
}
.hero-stats b i { font-style: normal; font-size: 17px; margin-left: 2px; }
.hero-stats li > span { font-size: 13.5px; color: var(--gray); letter-spacing: 1px; }

/* ---------- 痛点 ---------- */

.pain-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 32px; }

.pain-card { display: flex; flex-direction: column; }
.pain-card h3 {
  font-family: var(--font-serif); font-size: 26px; font-weight: 900;
  display: flex; align-items: baseline; gap: 10px; justify-content: center;
}
.pain-card h3 .no { color: var(--red); font-size: 30px; }
.pain-desc { margin: 14px auto 24px; color: var(--gray); text-align: center; font-size: 15px; line-height: 1.7; min-height: 51px; max-width: 420px; }

.pain-flow {
  display: flex; align-items: center; justify-content: center;
  gap: 14px; padding: 20px 8px 26px; flex: 1;
}
.pain-node { text-align: center; width: 122px; flex: none; }
.pain-node .glyph {
  width: 84px; height: 84px; margin: 0 auto; border-radius: 16px;
  background: #f1f2f4; color: #4b5058; font-size: 40px;
  display: flex; align-items: center; justify-content: center;
}
.pain-node.bad .glyph { background: var(--red-light); color: var(--red); }
.pain-node p { margin-top: 10px; font-size: 14px; font-weight: 700; }
.pain-arrow { flex: 1; min-width: 70px; text-align: center; }
.pain-arrow .line {
  position: relative; display: block; height: 2px;
  background: #8b9098; border-radius: 1px; margin: 0 10px;
}
.pain-arrow .line::after {
  content: ""; position: absolute; right: -9px; top: -4px;
  border: 5px solid transparent; border-left: 9px solid #8b9098;
}
.pain-arrow.two .line::before {
  content: ""; position: absolute; left: -2px; top: -6px;
  border: 5px solid transparent; border-right-color: #8b9098;
}
.pain-arrow span { display: block; font-size: 13px; color: var(--gray); margin-bottom: 8px; font-weight: 600; }
.pain-flow .stack { flex: 1; min-width: 130px; display: grid; gap: 18px; }
.pain-arrow.rev .line { transform: scaleX(-1); }
.pain-arrow .cross {
  position: absolute; left: 50%; top: -11px; transform: translateX(-50%);
  width: 24px; height: 24px; border-radius: 50%;
  background: var(--red); color: #fff; font-size: 13px; font-weight: 900;
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 0 0 4px #fff;
}
.pain-points { display: grid; gap: 14px; margin-top: auto; }

/* ---------- 服务生态 ---------- */

.eco-intro {
  text-align: center; font-size: 18px; font-weight: 600;
  max-width: 900px; margin: 0 auto 54px; line-height: 2;
}

.eco-layout { display: grid; grid-template-columns: 1.05fr .95fr; gap: 32px; align-items: stretch; }

.eco-services.dashed-card { padding: 30px 26px; display: flex; flex-direction: column; }
.eco-services ul {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 26px 14px;
  flex: 1; align-content: space-evenly;
}
.eco-services li { text-align: center; }
.eco-services .glyph {
  width: 66px; height: 66px; margin: 0 auto; border-radius: 50%;
  border: 1.6px solid #c3c8cf; color: #9aa0aa; font-size: 30px;
  display: flex; align-items: center; justify-content: center;
  transition: .3s; background: #fff;
}
.eco-services li:hover .glyph { border-color: var(--red); color: var(--red); transform: translateY(-4px); box-shadow: 0 10px 20px rgba(200, 16, 46, .14); }
.eco-services li b {
  display: block; margin: 12px auto 0; width: max-content;
  padding: 4px 14px; border-radius: 999px;
  background: var(--pill-grad); color: #fff;
  font-size: 13px; font-weight: 700; letter-spacing: 1px;
}

.eco-right { display: grid; gap: 32px; grid-template-rows: auto 1fr; }

.eco-models { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.model-card { border: 2px dashed var(--red); border-radius: 12px; background: #fff; padding: 22px 18px; text-align: center; }
.model-card h4 { font-family: var(--font-serif); font-size: 19px; font-weight: 900; color: var(--red); }
.model-card h4 small { display: block; font-family: var(--font-sans); color: var(--gray); font-size: 12px; font-weight: 400; letter-spacing: 1px; margin-top: 2px; }
.model-flow { margin-top: 16px; display: grid; gap: 8px; }
.model-flow li {
  position: relative; padding: 7px 10px; border-radius: 8px;
  background: var(--red-light); color: var(--red-dark);
  font-size: 13.5px; font-weight: 700;
}
.model-flow li + li::before {
  content: ""; position: absolute; left: 50%; top: -9px;
  border: 5px solid transparent; border-top-color: var(--red);
}

.eco-channels.dashed-card { padding: 24px 26px; display: grid; gap: 18px; align-content: center; }
.flow-snake { display: grid; gap: 16px; position: relative; }
.flow-link { position: absolute; inset: 0; width: 100%; height: 100%; z-index: 0; pointer-events: none; }
.flow-head {
  position: relative; z-index: 1;
  background: var(--red-grad); color: #fff; text-align: center;
  font-weight: 800; font-size: 15.5px; letter-spacing: 3px;
  padding: 12px 34px 12px 22px; box-shadow: var(--shadow-red);
  clip-path: polygon(0 0, calc(100% - 16px) 0, 100% 50%, calc(100% - 16px) 100%, 0 100%);
}
.flow-row { position: relative; z-index: 1; display: flex; align-items: center; justify-content: space-between; gap: 6px; }
.flow-row.rev { flex-direction: row-reverse; }
.flow-step { flex: 1; display: grid; justify-items: center; gap: 8px; }
.flow-step .ico-round {
  position: relative; width: 46px; height: 46px; font-size: 21px; color: #fff;
  box-shadow: 0 0 0 6px rgba(200, 16, 46, .08), 0 0 18px 4px rgba(200, 16, 46, .28);
}
.flow-step .ico-round .ico { stroke: #fff; }
.flow-step b { font-size: 13.5px; letter-spacing: 1px; color: var(--ink); white-space: nowrap; }

.eco-codes {
  margin-top: 44px; text-align: center;
  font-family: var(--font-serif); font-weight: 900;
  font-size: clamp(20px, 2.6vw, 30px); color: var(--red);
  letter-spacing: 6px;
}
.eco-codes span { color: var(--ink); }

/* ---------- POS 机 ---------- */

.pos-intro { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; align-items: center; }
.pos-intro h3 { font-family: var(--font-serif); font-size: clamp(26px, 3vw, 36px); font-weight: 900; line-height: 1.5; }
.pos-intro h3 em { font-style: normal; color: var(--red); font-size: 1.25em; }
.pos-intro .desc { margin: 18px 0 30px; color: var(--gray); font-size: 15.5px; }

.pos-features { display: grid; grid-template-columns: 1fr 1fr; gap: 22px; }
.pos-features li { display: flex; gap: 14px; align-items: flex-start; }
.pos-features .ico-round { width: 52px; height: 52px; font-size: 25px; }
.pos-features b { font-size: 16.5px; color: var(--red); display: block; }
.pos-features p { font-size: 13.5px; color: var(--gray); }

.pos-device { position: relative; display: flex; justify-content: center; }
.pos-device img {
  width: min(460px, 100%); background: #fff;
  border-radius: 20px; box-shadow: 0 24px 48px rgba(23, 24, 26, .12);
}

.pos-block { margin-top: 76px; }
.pos-block > h4 {
  font-family: var(--font-serif); font-size: 24px; font-weight: 900;
  margin-bottom: 30px; display: flex; align-items: center; gap: 14px;
}
.pos-block > h4::before {
  content: ""; width: 10px; height: 26px; border-radius: 3px;
  background: var(--red-grad); flex: none;
}

/* 架构图 */
.arch { display: grid; gap: 18px; }
.arch-bar {
  border: 2px dashed var(--red); border-radius: 12px; background: #fff;
  padding: 16px 24px; display: flex; align-items: center; justify-content: center;
  gap: 26px; flex-wrap: wrap; text-align: center;
}
.arch-bar b { color: var(--red); letter-spacing: 2px; }
.arch-bar span { color: #4b5058; font-weight: 600; font-size: 14.5px; }
.arch-bar .arch-tag { font-style: normal; background: var(--red-light); color: var(--red-dark); border-radius: 999px; padding: 3px 16px; font-size: 12.5px; font-weight: 700; }
.arch-mid { display: grid; grid-template-columns: 1fr auto 1.1fr auto 1.1fr auto 1fr; gap: 10px; align-items: stretch; }
.arch-node {
  border: 2px dashed var(--red); border-radius: 12px; background: #fff;
  padding: 20px 14px; text-align: center; display: grid; gap: 8px; align-content: center;
}
.arch-node .glyph { font-size: 34px; color: var(--red); }
.arch-node b { font-size: 15.5px; }
.arch-node.core { background: var(--red-grad); border-style: solid; color: #fff; box-shadow: var(--shadow-red); }
.arch-node.core .glyph, .arch-node.core small { color: #fff; }
.arch-node small { color: var(--gray); font-size: 12.5px; }
.arch-link { display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 6px; min-width: 96px; }
.arch-link i {
  font-style: normal; font-size: 12px; color: var(--red-dark);
  background: var(--red-light); border-radius: 999px; padding: 2px 10px; font-weight: 700;
  white-space: nowrap;
}
.arch-link .wire { position: relative; width: 100%; height: 2px; background: var(--red); margin: 4px 0; }
.arch-link .wire::before, .arch-link .wire::after {
  content: ""; position: absolute; top: -4px; border: 5px solid transparent;
}
.arch-link .wire::after { right: 0; border-left-color: var(--red); }
.arch-link .wire::before { left: 0; border-right-color: var(--red); }
.arch-bottom { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }

/* 用户类型 / 需求场景 */
.pos-users { display: grid; grid-template-columns: repeat(6, 1fr); gap: 20px; }
.pos-users li { text-align: center; background: #fff; border: 1px solid var(--line); border-radius: 12px; padding: 24px 10px; transition: .3s; }
.pos-users li:hover { transform: translateY(-6px); box-shadow: var(--shadow); border-color: transparent; }
.pos-users .glyph { width: 56px; height: 56px; margin: 0 auto; border-radius: 50%; background: var(--red-light); color: var(--red); font-size: 27px; display: flex; align-items: center; justify-content: center; }
.pos-users b { display: block; margin: 12px auto 6px; width: max-content; padding: 4px 14px; border-radius: 999px; background: var(--pill-grad); color: #fff; font-size: 13.5px; }
.pos-users p { font-size: 12.5px; color: var(--gray); }

.pos-scenes { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.scene-card { background: #fff; border-radius: 12px; overflow: hidden; box-shadow: var(--shadow); transition: .3s; }
.scene-card:hover { transform: translateY(-6px); }
.scene-thumb {
  height: 120px; display: flex; align-items: center; justify-content: center;
  background: linear-gradient(135deg, #fdeeee, #f7d9dc); color: var(--red); font-size: 46px;
}
.scene-card .body { padding: 18px 20px 22px; }
.scene-card h5 { font-size: 16.5px; display: flex; align-items: center; gap: 8px; }
.scene-card h5::before { content: ""; width: 9px; height: 9px; border-radius: 50%; background: var(--red); flex: none; }
.scene-card p { margin-top: 8px; font-size: 13px; color: var(--gray); }

/* 使用流程 */
.pos-flow { display: grid; grid-template-columns: 1fr auto 1fr auto 1fr; gap: 18px; align-items: stretch; }
.flow-stage { border: 2px dashed var(--red); border-radius: 14px; background: #fff; padding: 26px 24px; }
.flow-stage > h5 {
  margin: -26px -24px 22px; padding: 12px 20px;
  background: var(--pill-grad); color: #fff;
  font-size: 16px; letter-spacing: 2px;
  border-radius: 12px 12px 0 0; text-align: center;
}
.flow-stage ol { display: grid; gap: 14px; }
.stage-note {
  display: flex; align-items: center; justify-content: center; gap: 8px;
  margin-bottom: 16px; padding: 10px 12px;
  border: 2px dashed var(--red); border-radius: 10px;
  background: var(--red-light); color: var(--red-dark);
  font-weight: 700; font-size: 14px; text-align: center;
}
.stage-note .ico { font-size: 20px; }
.flow-stage li { display: flex; align-items: center; gap: 14px; }
.flow-stage .step-no {
  width: 30px; height: 30px; border-radius: 50%; flex: none;
  background: var(--red); color: #fff; font-weight: 800; font-size: 14px;
  display: flex; align-items: center; justify-content: center;
}
.flow-stage .glyph { font-size: 26px; color: var(--red); flex: none; }
.flow-stage b { font-size: 15px; }
.flow-next { align-self: center; font-size: 34px; color: var(--red); }

/* ---------- 跨税通平台 ---------- */

.plat-overview { display: grid; grid-template-columns: .9fr 1.1fr; gap: 56px; align-items: center; }
.plat-overview h3 { font-family: var(--font-serif); font-size: clamp(26px, 3vw, 38px); font-weight: 900; line-height: 1.5; }
.plat-overview h3 em { font-style: normal; color: var(--red); font-size: 1.2em; }
.plat-url {
  margin: 18px 0 8px; display: inline-flex; align-items: center; gap: 10px;
  font-size: 17px; font-weight: 700; color: var(--blue);
  background: #eef3fb; border: 1px dashed var(--blue);
  padding: 8px 18px; border-radius: 10px;
}
.plat-overview .desc { color: var(--gray); font-size: 15px; margin-bottom: 26px; }
.plat-points { display: grid; gap: 14px; }
.plat-points li { display: flex; gap: 14px; align-items: center; background: #fff; border: 1px solid var(--line); border-radius: 12px; padding: 13px 18px; }
.plat-points .ico-round { width: 46px; height: 46px; font-size: 22px; color: #fff; flex: none; }
.plat-points .ico-round .ico { stroke: #fff; }
.plat-points b { color: var(--red); font-size: 16px; margin-right: 10px; }
.plat-points span { color: var(--gray); font-size: 13.5px; }

/* 笔记本模型 */
.laptop { position: relative; }
.laptop-screen {
  border: 10px solid #23252a; border-bottom-width: 26px; border-radius: 18px 18px 4px 4px;
  background: linear-gradient(160deg, #f4faf6, #eef4f8 70%, #e8eef7);
  aspect-ratio: 16 / 9.6; overflow: hidden; position: relative;
  box-shadow: 0 24px 50px rgba(23, 24, 26, .22);
  display: flex; align-items: center; justify-content: center; text-align: center;
}
.laptop-screen::before {
  content: ""; position: absolute; right: -80px; top: -80px;
  width: 260px; height: 260px; border-radius: 50%; background: rgba(31, 122, 77, .08);
}
.laptop-screen .mock-k { font-size: 12px; letter-spacing: 3px; color: var(--green); }
.laptop-screen .mock-t { font-size: clamp(18px, 2.2vw, 28px); font-weight: 900; color: var(--green); letter-spacing: 2px; margin: 10px 0; }
.laptop-screen .mock-t b { color: #17607a; }
.laptop-screen .mock-d { font-size: 12px; color: #8a9199; line-height: 1.9; }
.laptop-screen .mock-btn { margin: 14px auto 0; width: max-content; padding: 7px 22px; border-radius: 6px; background: var(--green); color: #fff; font-size: 12.5px; }
.laptop-base {
  height: 14px; margin: 0 -6%; border-radius: 0 0 14px 14px;
  background: linear-gradient(#d8dadd, #9ea2a8);
  position: relative;
}
.laptop-base::after {
  content: ""; position: absolute; left: 50%; top: 0; transform: translateX(-50%);
  width: 120px; height: 6px; border-radius: 0 0 8px 8px; background: #7d8187;
}

/* 屏幕内模拟界面 */
.mock-form { width: 82%; text-align: left; font-size: 11px; color: #5b6169; }
.mock-form h6 { font-size: 13px; color: #17181a; margin-bottom: 10px; }
.mf-label { font-size: 10.5px; color: #3c4046; font-weight: 700; margin: 8px 0 5px; }
.mf-label::first-letter { color: var(--red); }
.mf-field { border: 1px solid #dfe3e8; border-radius: 4px; padding: 6px 10px; color: #a6acb4; background: #fff; }
.mf-opts { display: flex; gap: 6px; flex-wrap: wrap; }
.mf-opts span { border: 1px solid #e3b8bd; color: var(--red); background: var(--red-light); border-radius: 3px; padding: 3px 9px; font-size: 10px; }
.mf-upload { border: 1px dashed #cfd4da; border-radius: 6px; padding: 16px 10px; text-align: center; color: #a6acb4; font-size: 10px; line-height: 1.8; background: #fff; }

.mock-doc { width: 84%; text-align: left; font-size: 10px; color: #6b727b; background: #fff; border-radius: 6px; padding: 14px 16px; box-shadow: 0 6px 18px rgba(0, 0, 0, .08); }
.mock-doc h6 { font-size: 11px; color: #17181a; text-align: center; letter-spacing: .5px; margin-bottom: 8px; }
.md-amt { color: var(--red); font-weight: 800; font-size: 14px; margin: 4px 0 8px; }
.md-amt small { font-size: 9px; color: #8a9199; font-weight: 400; margin-left: 6px; }
.md-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 2px 14px; }
.md-line { display: flex; justify-content: space-between; gap: 8px; border-bottom: 1px solid #eef0f3; padding: 4px 0; }
.md-line b { color: #3c4046; }

.mock-table { width: 90%; background: #fff; border-radius: 6px; padding: 10px 12px; font-size: 9.5px; color: #6b727b; text-align: left; box-shadow: 0 6px 18px rgba(0, 0, 0, .08); }
.mt-row { display: grid; grid-template-columns: 1.5fr .8fr .5fr .6fr .7fr .5fr; gap: 6px; padding: 5px 4px; border-bottom: 1px solid #eef0f3; align-items: center; }
.mt-head { color: #3c4046; font-weight: 700; background: #f6f7f9; }
.mt-tag { background: #e8f1fb; color: #2b6cb0; border-radius: 3px; padding: 0 5px; width: max-content; }

/* 子模块 */
.plat-sub { margin-top: 80px; }
.plat-sub-head { display: flex; align-items: baseline; gap: 16px; flex-wrap: wrap; margin-bottom: 14px; }
.plat-sub-head h4 { font-family: var(--font-serif); font-size: clamp(22px, 2.6vw, 30px); font-weight: 900; }
.plat-sub-head h4 em { font-style: normal; color: var(--red); }
.plat-sub-head .dash { color: var(--gray-light); }
.plat-sub-head p { color: var(--gray); font-size: 15px; }
.plat-sub-head.split-head { margin-top: 56px; }
.plat-sub-lead { color: var(--gray); margin-bottom: 34px; max-width: 900px; }

/* 合规模式维度卡片 */
.cmp-mode {
  width: max-content; max-width: 100%; margin: 26px auto 0;
  background: var(--red-grad); color: #fff; text-align: center;
  font-size: 19px; font-weight: 800; letter-spacing: 3px;
  padding: 14px 46px; border-radius: 999px;
  box-shadow: var(--shadow-red);
  animation: cmp-glow 3s ease-in-out infinite;
}
@keyframes cmp-glow {
  0%, 100% { box-shadow: 0 10px 24px rgba(200, 16, 46, .28); }
  50% { box-shadow: 0 12px 36px rgba(200, 16, 46, .5); }
}
.cmp-cards { counter-reset: cmp; display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; margin-top: 30px; }
.cmp-cards li {
  counter-increment: cmp;
  position: relative; overflow: hidden;
  background: #fff; border: 1px solid var(--line); border-radius: 16px;
  padding: 40px 30px 36px; text-align: center; transition: .35s;
}
.cmp-cards li::before {
  content: ""; position: absolute; top: 0; left: 0; right: 0; height: 4px;
  background: var(--red-grad); transform: scaleX(0); transform-origin: left; transition: .45s;
}
.cmp-cards li::after {
  content: "0" counter(cmp);
  position: absolute; right: 16px; top: 10px;
  font-family: var(--font-serif); font-size: 46px; font-weight: 900; line-height: 1;
  color: rgba(200, 16, 46, .08); transition: .35s;
}
.cmp-cards li:hover { transform: translateY(-6px); box-shadow: var(--shadow); border-color: transparent; }
.cmp-cards li:hover::before { transform: scaleX(1); }
.cmp-cards li:hover::after { color: rgba(200, 16, 46, .16); transform: translateY(-2px); }
.cmp-cards .ico-round { width: 64px; height: 64px; font-size: 30px; transition: .35s; }
.cmp-cards li:hover .ico-round { transform: scale(1.1) rotate(-6deg); box-shadow: 0 10px 26px rgba(200, 16, 46, .38); }
.cmp-cards b { display: block; margin: 18px 0 12px; font-size: 20px; letter-spacing: 3px; color: var(--ink); }
.cmp-cards p { color: var(--ink); font-size: 16px; font-weight: 600; line-height: 1.95; letter-spacing: .5px; }
.cmp-cards li:nth-child(1) { --i: 0; }
.cmp-cards li:nth-child(2) { --i: 1; }
.cmp-cards li:nth-child(3) { --i: 2; }
.cmp-cards li:nth-child(4) { --i: 3; }
.cmp-cards li:nth-child(5) { --i: 4; }
.cmp-cards li:nth-child(6) { --i: 5; }
.reveal.in .cmp-cards li { animation: cmp-rise .7s cubic-bezier(.22, .61, .36, 1) backwards; animation-delay: calc(var(--i, 0) * .1s); }
@keyframes cmp-rise { from { opacity: 0; transform: translateY(36px); } to { opacity: 1; transform: none; } }
.cmp-summary {
  position: relative; overflow: hidden;
  margin-top: 26px; background: var(--red-grad); border-radius: 16px;
  box-shadow: var(--shadow-red); color: #fff;
  padding: 30px 40px; display: flex; align-items: center; justify-content: center; gap: 18px;
}
.cmp-summary::after {
  content: ""; position: absolute; top: 0; bottom: 0; left: -60%; width: 42%;
  background: linear-gradient(100deg, transparent, rgba(255, 255, 255, .32), transparent);
  transform: skewX(-20deg); animation: cmp-shine 3.8s ease-in-out infinite;
}
@keyframes cmp-shine { 0% { left: -60%; } 60%, 100% { left: 130%; } }
.cmp-summary .ico { position: relative; flex: none; width: 34px; height: 34px; stroke: #fff; }
.cmp-summary p { position: relative; font-size: 18px; font-weight: 800; letter-spacing: 2px; line-height: 1.8; text-align: center; }

/* 平台用户类型 / 需求场景 / 使用流程 */
.plat-users { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; margin-top: 26px; }
.plat-users li {
  background: #fff; border: 1px solid var(--line); border-radius: 12px;
  padding: 24px 16px; text-align: center; transition: .3s;
}
.plat-users li:hover { transform: translateY(-4px); box-shadow: var(--shadow); border-color: transparent; }
.plat-users .ico-round { width: 54px; height: 54px; font-size: 25px; }
.plat-users b { display: block; margin: 14px 0 6px; font-size: 16px; letter-spacing: 1px; color: var(--ink); }
.plat-users li > span:not(.ico-round) { color: var(--gray); font-size: 13.5px; letter-spacing: .5px; }

.plat-scenes { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; margin-top: 26px; }
.plat-scenes li {
  display: flex; gap: 16px; align-items: flex-start;
  background: #fff; border: 1px solid var(--line); border-radius: 12px;
  padding: 22px; transition: .3s;
}
.plat-scenes li:hover { transform: translateY(-4px); box-shadow: var(--shadow); border-color: transparent; }
.plat-scenes .ico-round { width: 56px; height: 56px; font-size: 26px; }
.plat-scenes b { display: flex; align-items: center; gap: 8px; font-size: 16.5px; color: var(--ink); letter-spacing: 1px; }
.plat-scenes b::before { content: ""; flex: none; width: 8px; height: 8px; border-radius: 50%; background: var(--red); }
.plat-scenes p { margin-top: 8px; color: var(--gray); font-size: 13.5px; line-height: 1.9; }

.use-flow { display: flex; gap: 14px; align-items: stretch; margin-top: 26px; }
.use-flow > .sep { flex: none; align-self: center; color: var(--red); }
.use-flow > .sep .ico { width: 26px; height: 26px; stroke-width: 2.4; }
.use-stage { flex: 1; display: grid; gap: 14px; align-content: start; }
.use-stage h5 {
  background: var(--red-grad); color: #fff; text-align: center;
  font-size: 15.5px; letter-spacing: 2px; padding: 11px 12px;
  border-radius: 10px; box-shadow: var(--shadow-red);
}
.use-stage .dashed-card { padding: 22px 18px; display: grid; gap: 18px; align-content: start; }
.use-intro { display: flex; align-items: center; gap: 12px; color: var(--gray); font-size: 13.5px; letter-spacing: .5px; }
.use-intro .ico-round { width: 40px; height: 40px; font-size: 19px; }
.use-step { display: flex; align-items: center; gap: 12px; }
.use-step .num {
  flex: none; width: 26px; height: 26px; border-radius: 50%;
  background: var(--red-grad); color: #fff; font-size: 13px; font-weight: 700;
  display: inline-flex; align-items: center; justify-content: center;
  box-shadow: var(--shadow-red);
}
.use-step .ico-round { width: 44px; height: 44px; font-size: 20px; }
.use-step b { font-size: 15px; letter-spacing: 1px; color: var(--ink); }

/* 平台功能双栏 */
.plat-split { display: grid; grid-template-columns: 1.05fr .95fr; gap: 48px; align-items: center; }
.plat-split.reverse > :first-child { order: 2; }
.plat-split.reverse > :last-child { order: 1; }

.feat-list { display: grid; gap: 26px; }
.feat-list.feat-cols { grid-template-columns: repeat(3, 1fr); gap: 22px; margin-bottom: 34px; }
.feat-list li { display: flex; gap: 18px; align-items: flex-start; }
.feat-list .ico-round { width: 58px; height: 58px; font-size: 27px; }
.feat-list b { font-size: 18px; display: block; line-height: 1.5; }
.feat-list p { color: var(--gray); font-size: 14px; margin-top: 4px; }

.step-flow { display: flex; align-items: center; justify-content: space-between; gap: 8px; flex-wrap: wrap; background: #fff; border-radius: 14px; box-shadow: var(--shadow); padding: 26px 30px; }
.step-flow li { display: flex; align-items: center; gap: 12px; }
.step-flow .glyph { width: 46px; height: 46px; border-radius: 10px; background: #f1f2f4; color: #4b5058; font-size: 22px; display: flex; align-items: center; justify-content: center; }
.step-flow li.hot .glyph { background: var(--red-light); color: var(--red); }
.step-flow b { font-size: 15px; }
.step-flow li.hot b { color: var(--red); }
.step-flow .sep { color: var(--red); font-size: 20px; font-weight: 900; }

.big-nums { display: grid; grid-template-columns: 1fr; gap: 24px; margin-top: 34px; }
.big-nums li {
  position: relative; overflow: hidden;
  background: var(--red-grad); border-radius: 16px; box-shadow: var(--shadow-red);
  padding: 42px 26px; text-align: center; display: grid; align-content: center; gap: 6px;
}
.big-nums b { position: relative; font-family: var(--font-serif); font-size: 56px; color: #fff; line-height: 1.1; }
.big-nums b i { font-style: normal; font-size: 22px; }
.big-nums li > span {
  position: relative; display: flex; flex-wrap: wrap; align-items: center; justify-content: center; gap: 10px;
  margin-top: 10px; color: #fff; font-size: 16px; font-weight: 600; letter-spacing: 2px;
}
.big-nums li > span em {
  font-style: normal; background: #fff; color: var(--red);
  font-weight: 800; font-size: 17px; letter-spacing: 1.5px;
  padding: 7px 20px; border-radius: 999px; box-shadow: 0 4px 14px rgba(0, 0, 0, .16);
}

.mode-chips { display: flex; gap: 12px; flex-wrap: wrap; margin: 22px 0 30px; }
.mode-chips li {
  padding: 8px 22px; border-radius: 10px; font-weight: 800; letter-spacing: 2px;
  background: #fff; border: 2px solid var(--red); color: var(--red); font-size: 16px;
}
.mode-chips li:nth-child(even) { background: var(--red); color: #fff; }

/* ---------- 实力资质 ---------- */

.strength-grid { display: grid; grid-template-columns: .95fr 1.05fr; gap: 60px; align-items: stretch; }
.strength-txt h3 { font-family: var(--font-serif); font-size: clamp(30px, 3.6vw, 46px); font-weight: 900; letter-spacing: 2px; }
.strength-txt h3 em { font-style: normal; color: var(--red); }
.strength-txt > p { margin: 22px 0 34px; color: var(--gray); font-size: 16px; line-height: 2; }
.strength-list { display: grid; gap: 18px; }
.strength-list li { display: flex; gap: 16px; align-items: center; background: #fff; border-radius: 12px; padding: 16px 20px; box-shadow: var(--shadow); }
.strength-list .ico-round { width: 50px; height: 50px; font-size: 24px; color: #fff; }
.strength-list .ico-round .ico { stroke: #fff; }
.strength-list b { color: var(--red); font-size: 16.5px; display: block; }
.strength-list span { color: var(--gray); font-size: 13.5px; }

.certs { display: grid; grid-template-columns: 1fr; gap: 26px; grid-auto-rows: 1fr; }
.cert-card {
  position: relative; border-radius: 6px; padding: 38px 26px 32px;
  background: linear-gradient(160deg, #eaf7fb, #f6fcfe 60%, #eaf7fb);
  border: 6px double #7ec8dd; text-align: center;
  box-shadow: 8px 8px 0 rgba(200, 16, 46, .35);
  transition: .3s; min-height: 220px;
  display: grid; align-content: center; gap: 8px;
}
.cert-card:hover { transform: translate(-4px, -4px); box-shadow: 12px 12px 0 rgba(200, 16, 46, .4); }
.cert-card b { font-family: var(--font-serif); font-size: 18px; color: #14506b; letter-spacing: 1.5px; line-height: 1.7; }
.cert-card span { font-size: 13px; color: #5b8ba0; letter-spacing: 3px; }
.cert-card .seal {
  position: absolute; right: 16px; bottom: 16px; width: 44px; height: 44px;
  border: 2px solid rgba(200, 16, 46, .55); border-radius: 50%;
  color: rgba(200, 16, 46, .65); font-size: 10px; font-weight: 700;
  display: flex; align-items: center; justify-content: center; text-align: center; line-height: 1.2;
}

/* 软著证书实物横向滚动画廊（9 图统一尺寸/色调） */
.cert-gallery { margin-top: 64px; }
.cert-gallery > h4 {
  font-family: var(--font-serif); font-size: 24px; font-weight: 900;
  margin-bottom: 30px; display: flex; align-items: center; gap: 14px;
}
.cert-gallery > h4::before { content: ""; width: 10px; height: 26px; border-radius: 3px; background: var(--red-grad); flex: none; }
.cert-gallery > h4 span { font-family: var(--font-sans); font-size: 12px; font-weight: 600; letter-spacing: 3px; color: var(--gray-light); }
.cert-rail {
  list-style: none; display: flex; gap: 18px;
  overflow-x: auto; padding: 4px 4px 14px;
  scroll-snap-type: x mandatory; scrollbar-width: thin;
  scrollbar-color: #c9cdd4 transparent;
}
.cert-rail::-webkit-scrollbar { height: 8px; }
.cert-rail::-webkit-scrollbar-thumb { background: #c9cdd4; border-radius: 4px; }
.cert-rail::-webkit-scrollbar-track { background: transparent; }
.cert-rail li { flex: 0 0 auto; scroll-snap-align: start; }
.cert-img {
  margin: 0; width: 216px; background: #fff;
  border: 1px solid var(--line); border-radius: 12px;
  overflow: hidden; box-shadow: var(--shadow); transition: .3s;
}
.cert-img:hover { transform: translateY(-4px); box-shadow: 0 14px 32px rgba(23, 24, 26, .14); }
.cert-img img { display: block; width: 100%; height: 306px; object-fit: cover; background: #fff; }

/* ---------- 合作伙伴 ---------- */

.partner-group { margin-bottom: 44px; }
.partner-group:last-child { margin-bottom: 0; }
.partner-group h4 {
  display: flex; align-items: center; gap: 12px;
  font-size: 18px; letter-spacing: 2px; margin-bottom: 20px;
}
.partner-group h4::before { content: ""; width: 8px; height: 22px; border-radius: 3px; background: var(--red-grad); }
.partner-group h4 span { color: var(--gray); font-size: 13px; font-weight: 400; letter-spacing: 1px; }
.partner-logos { display: grid; grid-template-columns: repeat(5, 1fr); gap: 16px; }
.partner-logos.cols6 { grid-template-columns: repeat(6, 1fr); }
.partner-logos.cols7 { grid-template-columns: repeat(7, 1fr); }
.partner-logos.wide { grid-template-columns: repeat(5, 1fr); }
.partner-logos li {
  background: #fff; border: 1px solid var(--line); border-radius: 10px;
  height: 84px; display: flex; align-items: center; justify-content: center;
  padding: 12px 14px; transition: .3s;
}
.partner-logos li img { max-width: 100%; max-height: 100%; width: auto; height: auto; object-fit: contain; }
.partner-logos li:hover { transform: translateY(-4px); box-shadow: var(--shadow); border-color: transparent; }

/* ---------- 业务联系 ---------- */

.biz-layout { display: grid; grid-template-columns: 1.08fr .92fr; gap: 40px; align-items: stretch; }
.biz-info h4 { display: flex; align-items: baseline; gap: 12px; font-size: 20px; letter-spacing: 2px; }
.biz-info h4 span { color: var(--gray); font-size: 12.5px; font-weight: 400; letter-spacing: 1px; }
.biz-info ul { margin-top: 26px; display: grid; gap: 20px; }
.biz-info li { display: flex; gap: 16px; align-items: baseline; }
.biz-info b { flex: none; min-width: 7.5em; color: var(--red); font-size: 15.5px; letter-spacing: 1px; }
.biz-info li > span { color: var(--ink); font-size: 15px; line-height: 1.9; }
.biz-info sup { color: var(--red); font-size: 11px; }
.biz-qr { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; align-content: center; }
.biz-qr figure {
  margin: 0; background: #fff; border: 1px solid var(--line); border-radius: 14px;
  padding: 18px 18px 14px; box-shadow: var(--shadow); text-align: center; transition: .3s;
}
.biz-qr figure:hover { transform: translateY(-6px); box-shadow: 0 18px 34px rgba(23, 24, 26, .12); }
.biz-qr img { display: block; width: 100%; height: auto; }
.biz-qr figcaption { margin-top: 12px; font-size: 13px; color: var(--gray); letter-spacing: 3px; }

/* ---------- CTA & 页脚 ---------- */

.cta-band { position: relative; overflow: hidden; padding: 96px 0; }
.cta-overlay {
  display: flex; align-items: center; justify-content: center;
  padding: 0 24px; pointer-events: none;
}
.cta-panel {
  text-align: center; color: #fff; max-width: 780px;
  background: linear-gradient(135deg, rgba(210, 32, 47, .94), rgba(158, 11, 32, .95));
  border-radius: 22px; padding: 42px 56px;
  box-shadow: 0 28px 64px rgba(200, 16, 46, .28);
}
.cta-panel a { pointer-events: auto; }
.cta-band h2 {
  font-family: var(--font-kai); font-size: clamp(24px, 3.4vw, 42px);
  letter-spacing: 6px; white-space: nowrap;
}
.cta-band p { margin: 16px 0 32px; font-size: 16.5px; letter-spacing: 2px; opacity: .92; }
.cta-band .actions { display: flex; gap: 18px; justify-content: center; flex-wrap: wrap; }

.site-footer { background: #17181a; color: #b9bdc4; padding: 64px 0 0; }
.footer-grid { display: grid; grid-template-columns: 1.3fr 1fr 1fr 1.2fr; gap: 44px; padding-bottom: 48px; }
.footer-grid h5 { color: #fff; font-size: 16px; letter-spacing: 2px; margin-bottom: 20px; }
.footer-grid li { margin-bottom: 10px; font-size: 14px; }
.footer-grid a:hover { color: #fff; }
.footer-logo { display: inline-block; background: #fff; border-radius: 14px; padding: 10px 18px; }
.footer-logo img { display: block; height: 50px; width: auto; }
.footer-en { display: block; margin-top: 12px; font-size: 11px; letter-spacing: 2.5px; color: #8b9098; }
.footer-brand p { margin-top: 16px; font-size: 14px; line-height: 2; }
.footer-slogan { font-family: var(--font-kai); font-size: 22px; color: #e8e9eb; letter-spacing: 4px; margin-top: 18px; }
.footer-contact li { display: flex; gap: 10px; align-items: flex-start; }
.footer-contact .ico { color: var(--red); font-size: 17px; margin-top: 4px; }
.footer-bottom {
  border-top: 1px solid #2b2d31; padding: 20px 0;
  display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap;
  font-size: 13px; color: #7c828c;
}
.footer-bottom b { color: #9aa0aa; font-family: var(--font-kai); letter-spacing: 3px; font-weight: 400; }

/* ---------- 动效 ---------- */

.reveal { opacity: 0; transform: translateY(28px); transition: opacity .7s ease, transform .7s ease; }
.reveal.in { opacity: 1; transform: none; }
.reveal.d1 { transition-delay: .1s; }
.reveal.d2 { transition-delay: .2s; }
.reveal.d3 { transition-delay: .3s; }

/* ---------- 响应式 ---------- */

@media (max-width: 1280px) {
  .header-inner { gap: 16px; }
  .main-nav a { padding: 8px 9px; font-size: 14px; }
  .brand-logo { height: 40px; }
  .brand-name { font-size: 17px; }
  .brand-name small { display: none; }
  .header-cta { padding: 9px 18px; font-size: 13.5px; }
}

@media (max-width: 1080px) {
  .main-nav a { padding: 8px 9px; font-size: 14.5px; }
  .pos-users { grid-template-columns: repeat(3, 1fr); }
  .partner-logos.cols6 { grid-template-columns: repeat(3, 1fr); }
  .partner-logos.cols7 { grid-template-columns: repeat(4, 1fr); }
  .arch-mid { grid-template-columns: 1fr; }
  .arch-link { flex-direction: row; min-width: 0; padding: 4px 0; }
  .arch-link .wire { width: 40px; height: 2px; }
  .arch-link .wire::before { border-right-color: var(--red); border-left-color: transparent; }
}

@media (max-width: 900px) {
  .nav-toggle { display: block; }
  .biz-layout { grid-template-columns: 1fr; }
  .main-nav {
    position: fixed; top: var(--header-h); left: 0; right: 0;
    background: #fff; flex-direction: column; align-items: stretch;
    padding: 12px 4vw 24px; gap: 0; box-shadow: 0 20px 30px rgba(23, 24, 26, .12);
    transform: translateY(-12px); opacity: 0; pointer-events: none; transition: .25s;
  }
  body.nav-open .main-nav { transform: none; opacity: 1; pointer-events: auto; }
  .main-nav a { padding: 13px 6px; border-bottom: 1px solid var(--line); font-size: 16px; }
  .main-nav a::after { display: none; }
  .header-cta { display: none; }

  .pain-grid, .eco-layout, .pos-intro, .plat-overview, .plat-split, .strength-grid { grid-template-columns: 1fr; }
  .cmp-cards { grid-template-columns: repeat(2, 1fr); }
  .cmp-cards b { font-size: 18px; letter-spacing: 2px; }
  .cmp-summary { flex-direction: column; gap: 10px; padding: 22px; }
  .plat-users { grid-template-columns: repeat(2, 1fr); }
  .plat-scenes { grid-template-columns: 1fr; }
  .use-flow { flex-direction: column; }
  .use-flow > .sep { transform: rotate(90deg); margin: -2px auto; }
  .plat-split.reverse > :first-child { order: 1; }
  .plat-split.reverse > :last-child { order: 2; }
  .hero-stats { grid-template-columns: 1fr 1fr; }
  .hero-stats li:nth-child(3)::before { display: none; }
  .pos-features, .eco-models, .arch-bottom, .feat-list.feat-cols { grid-template-columns: 1fr; }
  .pos-scenes { grid-template-columns: 1fr 1fr; }
  .pos-flow { grid-template-columns: 1fr; }
  .flow-next { transform: rotate(90deg); justify-self: center; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .eco-services ul { grid-template-columns: repeat(3, 1fr); }
}

@media (max-width: 560px) {
  section { padding: 64px 0; }
  .footer-logo img { height: 38px; }
  .pos-users, .pos-scenes, .big-nums { grid-template-columns: 1fr; }
  .cmp-cards { grid-template-columns: 1fr; }
  .cmp-mode { font-size: 15px; letter-spacing: 1px; padding: 10px 24px; }
  .cmp-summary p { font-size: 15.5px; letter-spacing: 1px; }
  .cmp-cards li { padding: 32px 22px 28px; }
  .cmp-cards li::after { font-size: 38px; }
  .eco-services ul { grid-template-columns: repeat(2, 1fr); }
  .partner-logos, .partner-logos.wide, .partner-logos.cols6, .partner-logos.cols7 { grid-template-columns: repeat(2, 1fr); }
  .cert-img { width: 176px; }
  .cert-img img { height: 249px; }
  .footer-grid { grid-template-columns: 1fr; }
  .pain-flow { flex-wrap: wrap; }
  .cta-band { padding: 64px 0; }
  .cta-panel { padding: 30px 22px; }
  .cta-band h2 { white-space: normal; }
  .flow-head { font-size: 13.5px; letter-spacing: 2px; padding: 10px 28px 10px 16px; }
  .flow-step .ico-round { width: 40px; height: 40px; font-size: 18px; }
  .flow-step b { font-size: 11.5px; letter-spacing: 0; }
  .step-flow { flex-direction: column; align-items: flex-start; }
  .step-flow .sep { transform: rotate(90deg); }
}