/* ==========================================================================
   丽水市博策信息技术有限公司 · 官网样式表
   品牌：软件开发 / 系统运维 / 企业信息化数字化
   ========================================================================== */

:root {
  --navy: #0a2540;
  --navy-2: #0f3358;
  --navy-3: #12406d;
  --blue: #1b63f0;
  --blue-dark: #0f4ac4;
  --blue-soft: #e8f0ff;
  --teal: #00c4a7;
  --teal-soft: #e2fbf6;
  --amber: #ff9a3c;
  --ink: #10233b;
  --ink-2: #3c5573;
  --ink-3: #6b829c;
  --line: #e3eaf3;
  --bg: #f6f8fc;
  --white: #ffffff;
  --radius: 16px;
  --radius-sm: 10px;
  --shadow-sm: 0 2px 10px rgba(10, 37, 64, .06);
  --shadow: 0 12px 32px rgba(10, 37, 64, .09);
  --shadow-lg: 0 26px 60px rgba(10, 37, 64, .16);
  --max: 1200px;
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
}

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

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

body {
  font-family: var(--font);
  color: var(--ink);
  background: var(--white);
  line-height: 1.7;
  font-size: 16px;
  overflow-x: hidden;
}

a { color: inherit; text-decoration: none; }
img, svg { display: block; max-width: 100%; }
ul { list-style: none; }
button, input, textarea, select { font: inherit; color: inherit; }

.wrap { width: 100%; max-width: var(--max); margin: 0 auto; padding: 0 24px; }
.wrap-narrow { max-width: 880px; }

/* ---------- 通用排版 ---------- */
.eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 13px; font-weight: 700; letter-spacing: .12em;
  color: var(--blue); text-transform: uppercase;
  background: var(--blue-soft); padding: 6px 14px; border-radius: 999px;
}
.eyebrow.on-dark { color: #7fd8ff; background: rgba(127, 216, 255, .12); }

h1, h2, h3, h4 { line-height: 1.28; font-weight: 800; letter-spacing: -.01em; }

.sec-title { font-size: clamp(26px, 3.4vw, 40px); margin: 18px 0 14px; }
.sec-sub { color: var(--ink-2); font-size: 17px; max-width: 720px; }
.sec-head { margin-bottom: 48px; }
.sec-head.center { text-align: center; }
.sec-head.center .sec-sub { margin: 0 auto; }

.section { padding: 96px 0; }
.section.tight { padding: 72px 0; }
.section.grey { background: var(--bg); }
.section.dark { background: var(--navy); color: #fff; }
.section.dark .sec-sub { color: rgba(255, 255, 255, .74); }
.section.dark .sec-title { color: #fff; }

.on-dark { color: #fff; }
.muted { color: var(--ink-3); }

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 9px;
  padding: 14px 28px; border-radius: 999px; border: 1px solid transparent;
  font-weight: 700; font-size: 15.5px; cursor: pointer;
  transition: transform .18s ease, box-shadow .18s ease, background .18s ease, color .18s ease;
  white-space: nowrap;
}
.btn svg { width: 18px; height: 18px; }
.btn-primary { background: var(--blue); color: #fff; box-shadow: 0 10px 24px rgba(27, 99, 240, .28); }
.btn-primary:hover { background: var(--blue-dark); transform: translateY(-2px); box-shadow: 0 14px 30px rgba(27, 99, 240, .36); }
.btn-ghost { background: rgba(255, 255, 255, .08); color: #fff; border-color: rgba(255, 255, 255, .3); }
.btn-ghost:hover { background: rgba(255, 255, 255, .16); transform: translateY(-2px); }
.btn-outline { background: #fff; color: var(--navy); border-color: var(--line); }
.btn-outline:hover { border-color: var(--blue); color: var(--blue); transform: translateY(-2px); }
.btn-teal { background: var(--teal); color: #04241d; box-shadow: 0 10px 24px rgba(0, 196, 167, .3); }
.btn-teal:hover { transform: translateY(-2px); }
.btn-sm { padding: 10px 20px; font-size: 14.5px; }
.btn-block { width: 100%; }

/* ---------- 顶部导航 ---------- */
.topbar {
  background: var(--navy); color: rgba(255, 255, 255, .8);
  font-size: 13.5px; padding: 8px 0;
}
.topbar .wrap { display: flex; justify-content: space-between; align-items: center; gap: 16px; }
.topbar a:hover { color: #fff; }
.topbar .tb-right { display: flex; gap: 20px; align-items: center; }
.topbar strong { color: var(--teal); }

.site-header {
  position: sticky; top: 0; z-index: 60;
  background: rgba(255, 255, 255, .92);
  backdrop-filter: saturate(180%) blur(14px);
  border-bottom: 1px solid transparent;
  transition: box-shadow .25s ease, border-color .25s ease;
}
.site-header.scrolled { box-shadow: 0 6px 24px rgba(10, 37, 64, .08); border-color: var(--line); }
.nav { display: flex; align-items: center; justify-content: space-between; height: 76px; gap: 20px; }

.logo { display: flex; align-items: center; gap: 12px; }
.logo-mark {
  width: 42px; height: 42px; border-radius: 12px; flex: none;
  background: linear-gradient(135deg, var(--blue) 0%, #12b8e8 100%);
  display: grid; place-items: center; color: #fff;
  box-shadow: 0 8px 18px rgba(27, 99, 240, .3);
}
.logo-mark svg { width: 24px; height: 24px; }
.logo-text b { display: block; font-size: 18.5px; font-weight: 800; letter-spacing: .02em; color: var(--navy); }
.logo-text span { display: block; font-size: 10.5px; letter-spacing: .18em; color: var(--ink-3); text-transform: uppercase; }

.nav-links { display: flex; align-items: center; gap: 4px; }
.nav-links a {
  padding: 9px 15px; border-radius: 8px; font-size: 15.5px; font-weight: 600;
  color: var(--ink-2); transition: color .18s, background .18s;
}
.nav-links a:hover { color: var(--blue); background: var(--blue-soft); }
.nav-links a.active { color: var(--blue); }
.nav-cta { display: flex; align-items: center; gap: 12px; }
.nav-phone {
  display: flex; align-items: center; gap: 8px;
  font-weight: 800; color: var(--navy); font-size: 16px; letter-spacing: .01em;
}
.nav-phone svg { width: 18px; height: 18px; color: var(--blue); }

.burger {
  display: none; width: 44px; height: 44px; border: 1px solid var(--line);
  background: #fff; border-radius: 12px; cursor: pointer; padding: 12px 11px;
  flex-direction: column; justify-content: space-between;
}
.burger span { display: block; height: 2px; background: var(--navy); border-radius: 2px; transition: .25s; }
.burger.open span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.burger.open span:nth-child(2) { opacity: 0; }
.burger.open span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

.mobile-menu {
  display: none; border-top: 1px solid var(--line); background: #fff;
  padding: 12px 24px 24px;
}
.mobile-menu.open { display: block; }
.mobile-menu a {
  display: block; padding: 13px 4px; font-weight: 600; color: var(--ink-2);
  border-bottom: 1px solid var(--line);
}
.mobile-menu a:last-of-type { border-bottom: 0; }
.mobile-menu .btn { margin-top: 14px; }

/* ---------- Hero ---------- */
.hero {
  position: relative; overflow: hidden; color: #fff;
  background:
    radial-gradient(900px 480px at 82% 8%, rgba(18, 184, 232, .28), transparent 62%),
    radial-gradient(700px 420px at 6% 96%, rgba(0, 196, 167, .2), transparent 60%),
    linear-gradient(160deg, #0a2540 0%, #0d3157 52%, #0a2540 100%);
  padding: 84px 0 96px;
}
.hero::before {
  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: 56px 56px;
  mask-image: radial-gradient(120% 100% at 60% 0%, #000 20%, transparent 78%);
  -webkit-mask-image: radial-gradient(120% 100% at 60% 0%, #000 20%, transparent 78%);
}
.hero .wrap { position: relative; z-index: 2; }
.hero-grid {
  display: grid; grid-template-columns: 1.06fr .94fr; gap: 56px; align-items: center;
}
.hero h1 { font-size: clamp(29px, 3.8vw, 46px); margin: 20px 0 20px; letter-spacing: -.02em; }
.hero h1 em {
  font-style: normal;
  background: linear-gradient(100deg, #6ad0ff 0%, var(--teal) 72%);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.hero-lead { font-size: 18px; color: rgba(255, 255, 255, .82); max-width: 560px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; margin: 34px 0 30px; }
.hero-tags { display: flex; flex-wrap: wrap; gap: 10px; }
.hero-tags span {
  font-size: 13.5px; padding: 6px 14px; border-radius: 999px;
  background: rgba(255, 255, 255, .09); border: 1px solid rgba(255, 255, 255, .16);
  color: rgba(255, 255, 255, .86);
}

/* Hero 右侧：系统界面示意 */
.hero-visual { position: relative; }
.mock {
  background: rgba(255, 255, 255, .07);
  border: 1px solid rgba(255, 255, 255, .16);
  border-radius: 20px; padding: 16px 16px 92px;
  box-shadow: var(--shadow-lg);
  backdrop-filter: blur(6px);
  animation: floaty 7s ease-in-out infinite;
}
@keyframes floaty { 0%,100% { transform: translateY(0); } 50% { transform: translateY(-12px); } }
.mock-bar { display: flex; align-items: center; gap: 7px; padding: 4px 4px 14px; }
.mock-bar i { width: 10px; height: 10px; border-radius: 50%; background: rgba(255, 255, 255, .28); }
.mock-bar span { margin-left: 8px; font-size: 12px; color: rgba(255, 255, 255, .55); }
.mock-body {
  background: #fff; border-radius: 14px; padding: 18px; color: var(--ink);
}
.mock-kpis { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; margin-bottom: 16px; }
.mock-kpi { background: var(--bg); border-radius: 10px; padding: 11px 12px; }
.mock-kpi b { display: block; font-size: 19px; color: var(--navy); }
.mock-kpi span { font-size: 11.5px; color: var(--ink-3); }
.mock-kpi em { font-style: normal; font-size: 11.5px; font-weight: 700; color: #e0303b; }
.mock-kpi em.down { color: #17a673; }
.mock-chart { display: flex; align-items: flex-end; gap: 8px; height: 96px; margin-bottom: 16px; }
.mock-chart i {
  flex: 1; border-radius: 6px 6px 3px 3px;
  background: linear-gradient(180deg, var(--blue) 0%, #7fb0ff 100%);
  animation: grow 1.4s cubic-bezier(.2,.8,.2,1) backwards;
}
.mock-chart i:nth-child(odd) { background: linear-gradient(180deg, var(--teal) 0%, #86ead9 100%); }
@keyframes grow { from { transform: scaleY(.05); transform-origin: bottom; } }
.mock-rows { display: grid; gap: 9px; }
.mock-row { display: flex; align-items: center; gap: 10px; font-size: 12.5px; color: var(--ink-2); }
.mock-row .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--teal); flex: none; }
.mock-row .bar { flex: 1; height: 7px; border-radius: 99px; background: var(--line); position: relative; overflow: hidden; }
.mock-row .bar i { position: absolute; inset: 0 auto 0 0; border-radius: 99px; background: var(--blue); }
.mock-row .bar.g i { background: var(--teal); }
.mock-row .bar.a i { background: var(--amber); }

.float-card {
  position: absolute; background: #fff; color: var(--ink);
  border-radius: 14px; padding: 13px 16px; box-shadow: var(--shadow);
  display: flex; align-items: center; gap: 11px; font-size: 13px; font-weight: 600;
}
.float-card svg { width: 20px; height: 20px; color: var(--blue); }
.float-card small { display: block; font-weight: 500; color: var(--ink-3); font-size: 11.5px; }
.float-card.one { left: -30px; bottom: 20px; animation: floaty 6s ease-in-out .4s infinite; }
.float-card.two { right: -34px; top: 2px; animation: floaty 7.5s ease-in-out .9s infinite; }

/* ---------- 数据条 ---------- */
.stats { background: var(--navy-2); color: #fff; padding: 0; }
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); }
.stat { padding: 38px 26px; border-right: 1px solid rgba(255, 255, 255, .1); }
.stat:last-child { border-right: 0; }
.stat b {
  display: block; font-size: clamp(30px, 3.6vw, 42px); font-weight: 800;
  background: linear-gradient(100deg, #fff, #7fd8ff);
  -webkit-background-clip: text; background-clip: text; color: transparent;
  line-height: 1.2;
}
.stat span { color: rgba(255, 255, 255, .7); font-size: 14.5px; }
.stat em { font-style: normal; font-size: .55em; margin-left: 2px; }
.stat b.stat-txt {
  font-size: clamp(16px, 1.5vw, 20px); font-weight: 700; line-height: 1.6;
  letter-spacing: 0; background: none;
  -webkit-background-clip: border-box; background-clip: border-box;
  -webkit-text-fill-color: #fff; color: #fff;
}

/* ---------- 卡片网格 ---------- */
.grid { display: grid; gap: 24px; }
.g-2 { grid-template-columns: repeat(2, 1fr); }
.g-3 { grid-template-columns: repeat(3, 1fr); }
.g-4 { grid-template-columns: repeat(4, 1fr); }

.card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 30px 26px; transition: transform .25s ease, box-shadow .25s ease, border-color .25s ease;
  position: relative; overflow: hidden;
}
.card:hover { transform: translateY(-6px); box-shadow: var(--shadow); border-color: #cddefc; }
.card::after {
  content: ""; position: absolute; left: 0; right: 0; top: 0; height: 3px;
  background: linear-gradient(90deg, var(--blue), var(--teal));
  transform: scaleX(0); transform-origin: left; transition: transform .3s ease;
}
.card:hover::after { transform: scaleX(1); }
.card-ico {
  width: 52px; height: 52px; border-radius: 14px; display: grid; place-items: center;
  background: var(--blue-soft); color: var(--blue); margin-bottom: 18px;
}
.card-ico.teal { background: var(--teal-soft); color: #059b85; }
.card-ico.amber { background: #fff3e6; color: #d9761a; }
.card-ico svg { width: 26px; height: 26px; }
.card h3 { font-size: 19.5px; margin-bottom: 10px; }
.card p { color: var(--ink-2); font-size: 15px; }
.card ul.feat { margin-top: 16px; display: grid; gap: 8px; }
.card ul.feat li {
  font-size: 14.2px; color: var(--ink-2); padding-left: 20px; position: relative;
}
.card ul.feat li::before {
  content: ""; position: absolute; left: 2px; top: 10px;
  width: 7px; height: 7px; border-radius: 50%; background: var(--teal);
}
.card-link {
  display: inline-flex; align-items: center; gap: 6px; margin-top: 20px;
  font-weight: 700; font-size: 14.5px; color: var(--blue);
}
.card-link svg { width: 15px; height: 15px; transition: transform .2s; }
.card:hover .card-link svg { transform: translateX(4px); }

/* ---------- 行业方案 ---------- */
.ind {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px;
}
.ind-item {
  border: 1px solid var(--line); border-radius: var(--radius); padding: 26px 24px;
  background: #fff; transition: border-color .22s, box-shadow .22s;
}
.ind-item:hover { border-color: var(--blue); box-shadow: var(--shadow-sm); }
.ind-item .tag {
  display: inline-block; font-size: 12.5px; font-weight: 700; color: var(--blue);
  background: var(--blue-soft); border-radius: 6px; padding: 3px 10px; margin-bottom: 12px;
}
.ind-item h4 { font-size: 17.5px; margin-bottom: 8px; }
.ind-item p { font-size: 14.5px; color: var(--ink-2); }

/* ---------- 案例 ---------- */
.case {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  overflow: hidden; display: flex; flex-direction: column;
  transition: transform .25s, box-shadow .25s;
}
.case:hover { transform: translateY(-6px); box-shadow: var(--shadow); }
.case-top {
  padding: 24px 26px; color: #fff;
  background: linear-gradient(135deg, var(--navy) 0%, var(--navy-3) 100%);
  display: flex; align-items: center; justify-content: space-between; gap: 12px;
}
.case-top b { font-size: 17px; }
.case-top .kind {
  font-size: 12px; padding: 4px 11px; border-radius: 999px;
  background: rgba(255, 255, 255, .16); border: 1px solid rgba(255, 255, 255, .22);
  white-space: nowrap;
}
.case-body { padding: 24px 26px 26px; display: flex; flex-direction: column; flex: 1; }
.case-body p { color: var(--ink-2); font-size: 14.8px; }
.case-metrics { display: flex; flex-wrap: wrap; gap: 22px; margin-top: 20px; padding-top: 18px; border-top: 1px dashed var(--line); }
.case-metrics div b { display: block; font-size: 20px; color: var(--navy); }
.case-metrics div span { font-size: 12.5px; color: var(--ink-3); }
.case-note {
  margin-top: 28px; font-size: 13.5px; color: var(--ink-3);
  background: var(--bg); border-left: 3px solid var(--blue); border-radius: 8px; padding: 12px 16px;
}

/* ---------- 流程 ---------- */
.flow { display: grid; grid-template-columns: repeat(6, 1fr); gap: 0; position: relative; }
.flow-step { padding: 0 14px; text-align: center; position: relative; }
.flow-step::before {
  content: ""; position: absolute; top: 26px; left: 50%; width: 100%; height: 2px;
  background: var(--line); z-index: 0;
}
.flow-step:last-child::before { display: none; }
.flow-num {
  position: relative; z-index: 1; width: 54px; height: 54px; margin: 0 auto 16px;
  border-radius: 50%; background: #fff; border: 2px solid var(--line);
  display: grid; place-items: center; font-weight: 800; color: var(--blue);
  transition: .25s;
}
.flow-step:hover .flow-num { background: var(--blue); color: #fff; border-color: var(--blue); box-shadow: 0 8px 20px rgba(27,99,240,.3); }
.flow-step h4 { font-size: 16.5px; margin-bottom: 6px; }
.flow-step p { font-size: 13.6px; color: var(--ink-2); }

/* ---------- 优势列表 ---------- */
.why { display: grid; grid-template-columns: 1.02fr .98fr; gap: 52px; align-items: center; }
.why-list { display: grid; gap: 16px; }
.why-item {
  display: flex; gap: 16px; padding: 20px 22px; border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, .05); border: 1px solid rgba(255, 255, 255, .1);
  transition: background .22s, transform .22s;
}
.why-item:hover { background: rgba(255, 255, 255, .1); transform: translateX(5px); }
.why-item .n {
  width: 40px; height: 40px; flex: none; border-radius: 11px; display: grid; place-items: center;
  background: rgba(127, 216, 255, .14); color: #7fd8ff; font-weight: 800;
}
.why-item h4 { font-size: 17px; color: #fff; margin-bottom: 5px; }
.why-item p { font-size: 14.4px; color: rgba(255, 255, 255, .72); }

.code-card {
  background: #061a2f; border: 1px solid rgba(255, 255, 255, .12);
  border-radius: 16px; overflow: hidden; box-shadow: var(--shadow-lg);
}
.code-head { display: flex; align-items: center; gap: 8px; padding: 13px 18px; background: rgba(255,255,255,.05); border-bottom: 1px solid rgba(255,255,255,.08); }
.code-head i { width: 10px; height: 10px; border-radius: 50%; background: rgba(255,255,255,.24); }
.code-head span { margin-left: 8px; font-size: 12.5px; color: rgba(255,255,255,.5); font-family: ui-monospace, Consolas, monospace; }
.code-body { padding: 22px; font-family: ui-monospace, Consolas, "Courier New", monospace; font-size: 13.4px; line-height: 1.95; color: #9fb6cd; overflow-x: auto; }
.code-body .k { color: #79c0ff; }
.code-body .s { color: #7ee7c7; }
.code-body .c { color: #5b7691; }
.code-body .f { color: #ffd479; }

/* ---------- CTA ---------- */
.cta {
  background:
    radial-gradient(800px 400px at 15% 10%, rgba(18, 184, 232, .3), transparent 60%),
    linear-gradient(120deg, var(--blue) 0%, #0e3f9e 60%, var(--navy) 100%);
  color: #fff; border-radius: 24px; padding: 60px 56px;
  display: grid; grid-template-columns: 1.25fr .75fr; gap: 44px; align-items: center;
  box-shadow: var(--shadow-lg);
}
.cta h2 { font-size: clamp(25px, 3vw, 36px); margin-bottom: 14px; }
.cta p { color: rgba(255, 255, 255, .84); font-size: 16.5px; }
.cta-side { text-align: center; border-left: 1px solid rgba(255,255,255,.2); padding-left: 34px; }
.cta-side .num { display: block; font-size: clamp(24px, 2.8vw, 34px); font-weight: 800; letter-spacing: .01em; }
.cta-side small { color: rgba(255, 255, 255, .7); display: block; margin-bottom: 18px; font-size: 13.5px; }

/* ---------- 页面头（内页） ---------- */
.page-head {
  position: relative; overflow: hidden; color: #fff; padding: 68px 0 74px;
  background:
    radial-gradient(700px 340px at 88% 0%, rgba(18, 184, 232, .3), transparent 62%),
    linear-gradient(140deg, #0a2540, #103a6b 65%, #0a2540);
}
.page-head::after {
  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: 54px 54px;
  mask-image: radial-gradient(110% 100% at 70% 0%, #000 15%, transparent 75%);
  -webkit-mask-image: radial-gradient(110% 100% at 70% 0%, #000 15%, transparent 75%);
}
.page-head .wrap { position: relative; z-index: 2; }
.crumb { font-size: 13.6px; color: rgba(255, 255, 255, .62); margin-bottom: 14px; }
.crumb a:hover { color: #fff; }
.page-head h1 { font-size: clamp(27px, 3.6vw, 42px); margin-bottom: 14px; }
.page-head p { color: rgba(255, 255, 255, .8); font-size: 17px; max-width: 720px; }

/* ---------- 联系 ---------- */
.contact-grid { display: grid; grid-template-columns: .92fr 1.08fr; gap: 48px; align-items: start; }
.contact-card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 34px 32px; box-shadow: var(--shadow-sm);
}
.info-item { display: flex; gap: 16px; padding: 18px 0; border-bottom: 1px dashed var(--line); }
.info-item:last-child { border-bottom: 0; }
.info-item .ico {
  width: 44px; height: 44px; flex: none; border-radius: 12px; display: grid; place-items: center;
  background: var(--blue-soft); color: var(--blue);
}
.info-item .ico svg { width: 21px; height: 21px; }
.info-item label { display: block; font-size: 13px; color: var(--ink-3); margin-bottom: 3px; }
.info-item b { font-size: 17px; color: var(--navy); word-break: break-all; }
.info-item b.tel { font-size: 22px; letter-spacing: .01em; }
.info-item p { font-size: 14.5px; color: var(--ink-2); }

.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.field { margin-bottom: 16px; }
.field label { display: block; font-size: 14px; font-weight: 600; margin-bottom: 7px; color: var(--ink-2); }
.field label i { color: #e0303b; font-style: normal; }
.field input, .field textarea, .field select {
  width: 100%; padding: 12px 14px; border: 1px solid var(--line); border-radius: 10px;
  background: #fbfcfe; transition: border-color .18s, box-shadow .18s, background .18s;
  font-size: 15px;
}
.field textarea { min-height: 122px; resize: vertical; }
.field input:focus, .field textarea:focus, .field select:focus {
  outline: none; border-color: var(--blue); background: #fff;
  box-shadow: 0 0 0 3px rgba(27, 99, 240, .12);
}
.form-tip { font-size: 13px; color: var(--ink-3); margin-top: 12px; }
.form-msg {
  display: none; margin-top: 14px; padding: 12px 16px; border-radius: 10px;
  font-size: 14.5px; background: var(--teal-soft); color: #06705e; border: 1px solid #b6ece1;
}
.form-msg.show { display: block; }
.form-msg.err { background: #fdecec; color: #b3232c; border-color: #f7cdcd; }

.tags-cloud { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 20px; }
.tags-cloud span {
  font-size: 13.5px; padding: 7px 15px; border-radius: 999px;
  background: var(--bg); border: 1px solid var(--line); color: var(--ink-2);
}

/* ---------- 页脚 ---------- */
.site-footer { background: var(--navy); color: rgba(255, 255, 255, .72); padding: 62px 0 0; }
.foot-grid { display: grid; grid-template-columns: 1.5fr 1fr 1fr 1.2fr; gap: 40px; padding-bottom: 46px; }
.site-footer .logo-text b { color: #fff; }
.site-footer .logo-text span { color: rgba(255, 255, 255, .5); }
.site-footer h5 { color: #fff; font-size: 15.5px; margin-bottom: 16px; letter-spacing: .02em; }
.site-footer li { margin-bottom: 10px; font-size: 14.4px; }
.site-footer a:hover { color: #7fd8ff; }
.foot-about { font-size: 14.4px; line-height: 1.85; margin-top: 18px; max-width: 330px; }
.foot-badge {
  display: inline-flex; align-items: center; gap: 8px; margin-top: 18px;
  font-size: 13px; padding: 7px 14px; border-radius: 999px;
  background: rgba(255, 255, 255, .08); border: 1px solid rgba(255, 255, 255, .14); color: #b9d7ef;
}
.foot-bottom {
  border-top: 1px solid rgba(255, 255, 255, .1); padding: 22px 0;
  display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; font-size: 13.4px;
  color: rgba(255, 255, 255, .55);
}

/* ---------- 返回顶部 ---------- */
.to-top {
  position: fixed; right: 26px; bottom: 26px; width: 48px; height: 48px; border-radius: 14px;
  background: var(--navy); color: #fff; border: 0; display: grid; place-items: center;
  cursor: pointer; opacity: 0; visibility: hidden; transform: translateY(10px);
  transition: .25s; box-shadow: var(--shadow); z-index: 70;
}
.to-top.show { opacity: 1; visibility: visible; transform: translateY(0); }
.to-top:hover { background: var(--blue); }
.to-top svg { width: 20px; height: 20px; }

/* ---------- 浮动咨询条 ---------- */
.call-bar {
  position: fixed; left: 50%; bottom: 18px; transform: translateX(-50%);
  display: none; gap: 10px; z-index: 75; width: calc(100% - 32px); max-width: 460px;
}
.call-bar a, .call-bar button {
  flex: 1; display: flex; align-items: center; justify-content: center; gap: 7px;
  padding: 13px 10px; border-radius: 12px; font-weight: 700; font-size: 15px; border: 0;
  cursor: pointer; box-shadow: var(--shadow);
}
.call-bar .c1 { background: var(--blue); color: #fff; }
.call-bar .c2 { background: #fff; color: var(--navy); }
.call-bar svg { width: 17px; height: 17px; }

/* ---------- 动效 ---------- */
.reveal { transition: opacity .7s ease, transform .7s cubic-bezier(.2,.8,.2,1); }
.js .reveal { opacity: 0; transform: translateY(24px); }
.js .reveal.in { opacity: 1; transform: none; }
.reveal.d1 { transition-delay: .07s; }
.reveal.d2 { transition-delay: .14s; }
.reveal.d3 { transition-delay: .21s; }
.reveal.d4 { transition-delay: .28s; }
.reveal.d5 { transition-delay: .35s; }

/* ---------- 响应式 ---------- */
@media (max-width: 1080px) {
  .nav-links a { padding: 9px 11px; font-size: 15px; }
  .nav-phone { display: none; }
  .hero-grid { grid-template-columns: 1fr; gap: 48px; }
  .float-card.one { left: 0; }
  .float-card.two { right: 0; }
  .g-4 { grid-template-columns: repeat(2, 1fr); }
  .flow { grid-template-columns: repeat(3, 1fr); gap: 32px 0; }
  .flow-step:nth-child(3)::before { display: none; }
  .why, .cta, .contact-grid { grid-template-columns: 1fr; }
  .cta-side { border-left: 0; border-top: 1px solid rgba(255,255,255,.2); padding: 28px 0 0; }
  .foot-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 860px) {
  .nav-links, .nav-cta .btn { display: none; }
  .burger { display: flex; }
  .section { padding: 68px 0; }
  .g-3, .ind { grid-template-columns: repeat(2, 1fr); }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .stat { border-bottom: 1px solid rgba(255,255,255,.1); }
  .stat:nth-child(2n) { border-right: 0; }
  .cta { padding: 44px 30px; }
  .page-head { padding: 52px 0 58px; }
  .call-bar { display: flex; }
  body { padding-bottom: 68px; }
  .to-top { bottom: 84px; }
}

@media (max-width: 620px) {
  .wrap { padding: 0 18px; }
  .logo-text span { display: none; }
  .g-2, .g-3, .g-4, .ind { grid-template-columns: 1fr; }
  .flow { grid-template-columns: repeat(2, 1fr); }
  .flow-step:nth-child(2n)::before { display: none; }
  .form-row { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: 1fr; }
  .stat { border-right: 0; }
  .hero { padding: 56px 0 68px; }
  .float-card { display: none; }
  .foot-grid { grid-template-columns: 1fr; gap: 30px; }
  .cta-side .num { font-size: 26px; }
  .topbar .tb-right span.hide-sm { display: none; }
  .topbar .wrap > div:first-child { display: none; }
  .topbar .tb-right { width: 100%; justify-content: center; gap: 12px; }
}

/* ---------- 常见问题（details） ---------- */
.faq {
  background: #fff; border: 1px solid var(--line); border-radius: 14px;
  margin-bottom: 14px; overflow: hidden; transition: box-shadow .22s, border-color .22s;
}
.faq:hover { box-shadow: var(--shadow-sm); border-color: #cddefc; }
.faq summary {
  padding: 20px 24px; font-weight: 700; font-size: 16.5px; cursor: pointer;
  list-style: none; display: flex; align-items: center; justify-content: space-between; gap: 16px;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after {
  content: "+"; font-size: 24px; font-weight: 400; line-height: 1;
  color: var(--blue); flex: none; transition: transform .25s;
}
.faq[open] summary::after { content: "−"; }
.faq summary:hover { color: var(--blue); }
.faq-body {
  margin: 0 24px 22px; padding-top: 16px; border-top: 1px dashed var(--line);
  color: var(--ink-2); font-size: 15px;
}

@media print {
  .site-header, .topbar, .call-bar, .to-top, .cta { display: none; }
}