/* ==========================================================
   上海绘塔科技有限公司 官网样式表
   ========================================================== */

:root {
  --ink: #14161f;
  --ink-2: #1d2130;
  --ink-3: #2a2f42;
  --brand: #ff6a3d;
  --brand-dark: #e4522a;
  --brand-soft: #fff1ec;
  --blue: #23305e;
  --text: #262a38;
  --text-2: #5b6379;
  --text-3: #8b92a6;
  --line: #e6e8ef;
  --bg: #ffffff;
  --bg-2: #f6f7fa;
  --radius: 14px;
  --radius-lg: 20px;
  --shadow: 0 10px 30px rgba(20, 22, 31, .07);
  --shadow-lg: 0 22px 60px rgba(20, 22, 31, .13);
  --max: 1200px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  font-size: 15px;
  line-height: 1.75;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul, ol { margin: 0; padding: 0; list-style: none; }
h1, h2, h3, h4, h5 { margin: 0; font-weight: 700; line-height: 1.35; letter-spacing: .2px; }
p { margin: 0 0 12px; }
button { font-family: inherit; cursor: pointer; }

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

/* ---------- 通用按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  height: 44px;
  padding: 0 22px;
  border: 1px solid var(--brand);
  border-radius: 999px;
  background: var(--brand);
  color: #fff;
  font-size: 14px;
  font-weight: 600;
  transition: .22s ease;
  white-space: nowrap;
}
.btn:hover { background: var(--brand-dark); border-color: var(--brand-dark); transform: translateY(-2px); box-shadow: 0 8px 20px rgba(255, 106, 61, .3); }
.btn--ghost { background: transparent; color: var(--brand); }
.btn--ghost:hover { background: var(--brand); color: #fff; }
.btn--light { background: #fff; color: var(--ink); border-color: #fff; }
.btn--light:hover { background: var(--brand); border-color: var(--brand); color: #fff; }
.btn--dark { background: var(--ink); border-color: var(--ink); }
.btn--dark:hover { background: var(--brand); border-color: var(--brand); }
.btn--sm { height: 34px; padding: 0 16px; font-size: 13px; }
.btn--block { width: 100%; }

/* ---------- 顶部条 ---------- */
.topbar { background: var(--ink); color: rgba(255,255,255,.72); font-size: 13px; }
.topbar__inner { display: flex; align-items: center; justify-content: space-between; height: 40px; gap: 16px; }
.topbar__right { display: flex; align-items: center; gap: 16px; }
.topbar__right a { color: rgba(255,255,255,.85); transition: .2s; }
.topbar__right a:hover { color: var(--brand); }
.topbar__right .btn { height: 28px; padding: 0 14px; font-size: 12px; }
.topbar__tel b { color: var(--brand); font-weight: 700; }

/* ---------- 主导航 ---------- */
.site-header { position: sticky; top: 0; z-index: 100; background: #fff; box-shadow: 0 2px 12px rgba(20,22,31,.06); }
.nav { display: flex; align-items: center; justify-content: space-between; height: 72px; gap: 20px; }

.brand { display: flex; align-items: center; gap: 12px; flex-shrink: 0; }
.brand__mark {
  width: 42px; height: 42px; border-radius: 12px;
  background: linear-gradient(135deg, var(--brand), #ff9a6c);
  color: #fff; font-size: 20px; font-weight: 800;
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 6px 16px rgba(255,106,61,.32);
}
.brand__text { display: flex; flex-direction: column; line-height: 1.25; }
.brand__text b { font-size: 17px; color: var(--ink); letter-spacing: .5px; }
.brand__text i { font-style: normal; font-size: 11px; color: var(--text-3); letter-spacing: 1.4px; }

.menu { display: flex; align-items: center; gap: 4px; }
.menu__item { position: relative; }
.menu__link {
  display: flex; align-items: center; gap: 4px;
  padding: 10px 14px; border-radius: 8px;
  font-size: 15px; font-weight: 500; color: var(--text);
  transition: .2s;
}
.menu__link:hover, .menu__item.is-active > .menu__link { color: var(--brand); background: var(--brand-soft); }
.menu__link .caret { width: 0; height: 0; border: 4px solid transparent; border-top-color: currentColor; margin-top: 4px; opacity: .65; }

.submenu {
  position: absolute; top: 100%; left: 50%; transform: translate(-50%, 8px);
  min-width: 168px; padding: 8px;
  background: #fff; border: 1px solid var(--line); border-radius: 12px;
  box-shadow: var(--shadow-lg);
  opacity: 0; visibility: hidden; transition: .2s ease;
}
.menu__item:hover > .submenu { opacity: 1; visibility: visible; transform: translate(-50%, 0); }
.submenu a {
  display: block; padding: 9px 14px; border-radius: 8px;
  font-size: 14px; color: var(--text); white-space: nowrap; transition: .18s;
}
.submenu a:hover, .submenu a.is-active { background: var(--brand-soft); color: var(--brand); }

.nav__toggle { display: none; width: 42px; height: 42px; border: 1px solid var(--line); border-radius: 10px; background: #fff; }
.nav__toggle span { display: block; width: 18px; height: 2px; margin: 3px auto; background: var(--ink); border-radius: 2px; transition: .2s; }

/* ---------- 页面头图 ---------- */
.pagehero {
  position: relative; overflow: hidden;
  background: linear-gradient(120deg, rgba(20,22,31,.88) 0%, rgba(35,48,94,.85) 60%, rgba(47,63,116,.88) 100%), var(--hero-bg, url('../img/banner-about.png')) center/cover no-repeat;
  color: #fff; padding: 62px 0 58px;
}
.pagehero--service { --hero-bg: url('../img/banner-service.png'); }
.pagehero::after {
  content: ""; position: absolute; right: -120px; top: -120px; width: 380px; height: 380px;
  background: radial-gradient(circle, rgba(255,106,61,.45), transparent 65%); border-radius: 50%;
}
.pagehero__inner { position: relative; z-index: 2; }
.pagehero h1 { font-size: 32px; margin-bottom: 10px; }
.pagehero p { color: rgba(255,255,255,.72); max-width: 720px; margin: 0; }
.breadcrumb { font-size: 13px; color: rgba(255,255,255,.6); margin-bottom: 12px; }
.breadcrumb a { color: rgba(255,255,255,.75); }
.breadcrumb a:hover { color: var(--brand); }
.breadcrumb span { margin: 0 6px; opacity: .5; }

/* ---------- 区块 ---------- */
.section { padding: 72px 0; }
.section--gray { background: var(--bg-2); }
.section--dark { background: var(--ink); color: #fff; }
.section__head { text-align: center; max-width: 720px; margin: 0 auto 44px; }
.section__head .tag {
  display: inline-block; padding: 4px 14px; border-radius: 999px;
  background: var(--brand-soft); color: var(--brand); font-size: 12px; font-weight: 700; letter-spacing: 1px;
}
.section__head h2 { font-size: 28px; margin: 12px 0 10px; color: var(--ink); }
.section--dark .section__head h2 { color: #fff; }
.section__head p { color: var(--text-2); margin: 0; }
.section--dark .section__head p { color: rgba(255,255,255,.68); }

/* ---------- 首页 Hero ---------- */
.hero { position: relative; background: var(--ink) url('../img/banner-home.png') center/cover no-repeat; color: #fff; overflow: hidden; }
.hero::before {
  content: ""; position: absolute; inset: 0;
  background:
    radial-gradient(900px 520px at 78% 18%, rgba(255,106,61,.32), transparent 60%),
    radial-gradient(700px 500px at 8% 92%, rgba(35,48,94,.9), transparent 62%);
}
.hero__grid {
  position: absolute; inset: 0; opacity: .16;
  background-image: linear-gradient(rgba(255,255,255,.5) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.5) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(circle at 70% 40%, #000, transparent 78%);
  -webkit-mask-image: radial-gradient(circle at 70% 40%, #000, transparent 78%);
}
.hero__inner { position: relative; z-index: 3; display: grid; grid-template-columns: 1.05fr .95fr; gap: 48px; align-items: center; padding: 82px 0 88px; }
.hero h1 { font-size: 42px; line-height: 1.28; margin-bottom: 18px; }
.hero h1 em { font-style: normal; color: var(--brand); }
.hero__desc { color: rgba(255,255,255,.75); font-size: 16px; max-width: 540px; margin-bottom: 28px; }
.hero__actions { display: flex; gap: 14px; flex-wrap: wrap; margin-bottom: 34px; }
.hero__stats { display: flex; gap: 34px; flex-wrap: wrap; }
.hero__stats b { display: block; font-size: 28px; color: #fff; line-height: 1.2; }
.hero__stats span { font-size: 13px; color: rgba(255,255,255,.6); }

.hero__art { position: relative; height: 330px; }
.hero__card {
  position: absolute; border-radius: 18px; padding: 18px 20px;
  background: rgba(255,255,255,.08); border: 1px solid rgba(255,255,255,.16);
  backdrop-filter: blur(8px); box-shadow: 0 20px 50px rgba(0,0,0,.35);
}
.hero__card b { display: block; font-size: 15px; margin-bottom: 4px; }
.hero__card span { font-size: 12px; color: rgba(255,255,255,.62); }
.hero__card--1 { left: 0; top: 10px; width: 232px; animation: float 6s ease-in-out infinite; }
.hero__card--2 { right: 4px; top: 92px; width: 200px; animation: float 7.5s ease-in-out infinite reverse; }
.hero__card--3 { left: 62px; bottom: 6px; width: 224px; animation: float 8.5s ease-in-out infinite; }
.hero__bar { height: 6px; border-radius: 4px; background: rgba(255,255,255,.18); margin-top: 12px; overflow: hidden; }
.hero__bar i { display: block; height: 100%; border-radius: 4px; background: var(--brand); }
@keyframes float { 0%,100% { transform: translateY(0); } 50% { transform: translateY(-14px); } }

/* ---------- 卡片通用 ---------- */
.grid { display: grid; gap: 22px; }
.grid--2 { grid-template-columns: repeat(2, 1fr); }
.grid--3 { grid-template-columns: repeat(3, 1fr); }
.grid--4 { grid-template-columns: repeat(4, 1fr); }

.card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius-lg);
  padding: 28px; transition: .25s ease;
}
.card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); border-color: transparent; }
.card h3 { font-size: 18px; margin-bottom: 10px; }
.card p { color: var(--text-2); font-size: 14px; margin: 0; }

.icon {
  width: 52px; height: 52px; border-radius: 14px; margin-bottom: 16px;
  display: flex; align-items: center; justify-content: center;
  background: var(--brand-soft); color: var(--brand); font-size: 22px; font-weight: 700;
}

.svc-card { display: flex; flex-direction: column; }
.svc-card .price { margin-top: 14px; font-size: 13px; color: var(--brand); font-weight: 700; }
.svc-card ul { margin-top: 14px; }
.svc-card li { position: relative; padding-left: 16px; font-size: 14px; color: var(--text-2); line-height: 2; }
.svc-card li::before { content: ""; position: absolute; left: 0; top: 13px; width: 6px; height: 6px; border-radius: 50%; background: var(--brand); }

/* ---------- 服务标签 ---------- */
.tag-list { display: flex; flex-wrap: wrap; gap: 10px; }
.tag-list li {
  padding: 7px 15px; border-radius: 999px; background: #fff; border: 1px solid var(--line);
  font-size: 13px; color: var(--text-2);
}

/* ---------- 案例视觉块（纯 CSS 生成，无外部图片） ---------- */
.thumb {
  position: relative; overflow: hidden; border-radius: var(--radius);
  aspect-ratio: 4 / 3; background: var(--bg-2);
}
.thumb::before {
  content: ""; position: absolute; inset: 0;
  background: var(--g1, linear-gradient(135deg, #23305e, #4a5b9c));
}
.thumb::after {
  content: ""; position: absolute; width: var(--sz, 140px); height: var(--sz, 140px);
  left: var(--x, 62%); top: var(--y, 30%);
  border-radius: var(--br, 50%);
  background: var(--g2, rgba(255,106,61,.85));
  transform: rotate(var(--rot, 0deg));
}
.thumb i {
  position: absolute; left: 8%; bottom: 14%; width: 46%; height: 8px; border-radius: 5px;
  background: rgba(255,255,255,.85);
}
.thumb u {
  position: absolute; left: 8%; bottom: 24%; width: 30%; height: 8px; border-radius: 5px;
  background: rgba(255,255,255,.45);
}
.t1 { --g1: linear-gradient(135deg,#1d2130,#3a4a86); --g2: rgba(255,106,61,.9); --sz:150px; --br:50%; }
.t2 { --g1: linear-gradient(135deg,#ff8a4c,#ff5a3c); --g2: rgba(255,255,255,.9); --sz:120px; --br:18px; --rot:18deg; --x:22%; --y:46%; }
.t3 { --g1: linear-gradient(135deg,#23305e,#12b3a8); --g2: rgba(255,255,255,.85); --sz:170px; --br:50% 50% 12px 12px; --x:70%; --y:52%; }
.t4 { --g1: linear-gradient(135deg,#2a2f42,#6c5ce7); --g2: rgba(255,106,61,.95); --sz:110px; --br:50%; --x:30%; --y:24%; }
.t5 { --g1: linear-gradient(135deg,#f4f6fb,#dfe4f2); --g2: #23305e; --sz:130px; --br:24px; --rot:12deg; --x:64%; --y:40%; }
.t6 { --g1: linear-gradient(135deg,#ff6a3d,#c4365f); --g2: rgba(255,255,255,.92); --sz:160px; --br:50%; --x:78%; --y:60%; }
.t7 { --g1: linear-gradient(135deg,#14161f,#2f3f74); --g2: rgba(18,179,168,.9); --sz:120px; --br:14px; --rot:25deg; --x:26%; --y:34%; }
.t8 { --g1: linear-gradient(135deg,#e8ecf6,#b9c3e0); --g2: #ff6a3d; --sz:150px; --br:50% 12px 50% 12px; --x:60%; --y:30%; }

.case-card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius-lg); overflow: hidden; transition: .25s; }
.case-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }
.case-card__body { padding: 18px 20px 22px; }
.case-card__body h4 { font-size: 16px; margin-bottom: 6px; }
.case-card__body p { font-size: 13px; color: var(--text-2); margin: 0; }
.case-card__meta { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 12px; }
.case-card__meta span { font-size: 12px; color: var(--text-3); padding: 3px 10px; border-radius: 999px; background: var(--bg-2); }

/* ---------- 流程 ---------- */
.flow { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.flow__step { position: relative; background: #fff; border: 1px solid var(--line); border-radius: var(--radius-lg); padding: 24px 22px; }
.flow__step:hover { border-color: var(--brand); box-shadow: var(--shadow); }
.flow__num {
  width: 40px; height: 40px; border-radius: 12px; background: var(--ink); color: #fff;
  display: flex; align-items: center; justify-content: center; font-weight: 800; margin-bottom: 14px;
}
.flow__step:nth-child(4n+2) .flow__num { background: var(--brand); }
.flow__step:nth-child(4n+3) .flow__num { background: var(--blue); }
.flow__step:nth-child(4n) .flow__num { background: #12b3a8; }
.flow__step h4 { font-size: 16px; margin-bottom: 8px; }
.flow__step p { font-size: 13px; color: var(--text-2); margin: 0; }

.steps { border-left: 2px dashed var(--line); margin-left: 12px; padding-left: 30px; }
.steps__item { position: relative; padding-bottom: 28px; }
.steps__item:last-child { padding-bottom: 0; }
.steps__item::before {
  content: ""; position: absolute; left: -41px; top: 6px; width: 16px; height: 16px; border-radius: 50%;
  background: var(--brand); border: 3px solid #fff; box-shadow: 0 0 0 3px var(--brand-soft);
}
.steps__item h4 { font-size: 17px; margin-bottom: 6px; }
.steps__item p { font-size: 14px; color: var(--text-2); margin: 0; }

/* ---------- 优势 ---------- */
.adv-item { display: flex; gap: 16px; padding: 20px; background: #fff; border: 1px solid var(--line); border-radius: var(--radius); }
.adv-item:hover { border-color: var(--brand); }
.adv-item .icon { width: 46px; height: 46px; font-size: 18px; margin-bottom: 0; flex-shrink: 0; }
.adv-item h4 { font-size: 16px; margin-bottom: 4px; }
.adv-item p { font-size: 13px; color: var(--text-2); margin: 0; }

/* ---------- 数据条 ---------- */
.stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; text-align: center; }
.stats__item b { display: block; font-size: 34px; color: var(--brand); line-height: 1.2; }
.stats__item span { font-size: 14px; color: rgba(255,255,255,.65); }

/* ---------- 表单 ---------- */
.form { background: #fff; border: 1px solid var(--line); border-radius: var(--radius-lg); padding: 34px; }
.form__row { margin-bottom: 18px; }
.form__row label { display: block; font-size: 14px; font-weight: 600; margin-bottom: 8px; }
.form__row label i { color: var(--brand); font-style: normal; margin-right: 3px; }
.form__row input, .form__row select, .form__row textarea {
  width: 100%; padding: 12px 14px; font-size: 14px; font-family: inherit;
  border: 1px solid var(--line); border-radius: 10px; background: #fbfbfd; color: var(--text);
  transition: .2s;
}
.form__row input:focus, .form__row select:focus, .form__row textarea:focus {
  outline: none; border-color: var(--brand); background: #fff; box-shadow: 0 0 0 3px rgba(255,106,61,.12);
}
.form__row textarea { min-height: 120px; resize: vertical; }
.form__hint { font-size: 12px; color: var(--text-3); margin-top: 6px; }
.form__error { font-size: 12px; color: #d93025; margin-top: 6px; display: none; }
.form__row.is-error input, .form__row.is-error textarea { border-color: #d93025; }
.form__row.is-error .form__error { display: block; }
.form__row.is-error .form__hint { display: none; }
.form__agree { display: flex; gap: 8px; align-items: flex-start; font-size: 13px; color: var(--text-2); margin-bottom: 18px; }
.form__agree input { width: 15px; height: 15px; margin-top: 4px; accent-color: var(--brand); }
.form--narrow { max-width: 460px; margin: 0 auto; }

.alert { padding: 12px 16px; border-radius: 10px; font-size: 14px; margin-bottom: 18px; display: none; }
.alert--ok { display: block; background: #eaf8f0; border: 1px solid #b6e3c8; color: #12734a; }
.alert--err { display: block; background: #fdecea; border: 1px solid #f5c2bd; color: #a3261a; }

/* ---------- 留言记录 ---------- */
.msgs { margin-top: 26px; }
.msgs h4 { font-size: 16px; margin-bottom: 12px; }
.msg-item { border: 1px solid var(--line); border-radius: 12px; padding: 14px 16px; margin-bottom: 12px; background: #fff; }
.msg-item b { font-size: 14px; }
.msg-item span { font-size: 12px; color: var(--text-3); margin-left: 10px; }
.msg-item p { font-size: 13px; color: var(--text-2); margin: 6px 0 0; }

/* ---------- 联系信息 ---------- */
.info-list li { display: flex; gap: 14px; padding: 16px 0; border-bottom: 1px dashed var(--line); }
.info-list li:last-child { border-bottom: 0; }
.info-list .k { width: 78px; flex-shrink: 0; font-size: 14px; color: var(--text-3); }
.info-list .v { font-size: 15px; color: var(--text); }
.info-list .v a:hover { color: var(--brand); }

/* ---------- 方案列表 ---------- */
.plan-card {
  display: grid; grid-template-columns: 210px 1fr; gap: 24px; align-items: center;
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius-lg); padding: 20px;
  transition: .25s;
}
.plan-card:hover { border-color: var(--brand); box-shadow: var(--shadow); transform: translateY(-3px); }
.plan-card .thumb { aspect-ratio: 16/10; }
.plan-card h3 { font-size: 18px; margin-bottom: 8px; }
.plan-card p { font-size: 14px; color: var(--text-2); margin-bottom: 12px; }
.plan-card__meta { display: flex; gap: 14px; flex-wrap: wrap; font-size: 13px; color: var(--text-3); }
.plan-card__meta b { color: var(--brand); font-size: 15px; }

.pay-box {
  border: 2px dashed var(--brand); border-radius: var(--radius-lg); padding: 28px;
  background: linear-gradient(180deg, #fff8f5, #fff); text-align: center; margin-top: 34px;
}
.pay-box h3 { font-size: 22px; color: var(--brand); margin-bottom: 8px; }
.pay-box .price { font-size: 36px; font-weight: 800; color: var(--brand); line-height: 1.2; }
.pay-box p { color: var(--text-2); font-size: 14px; margin: 6px 0 18px; }
.pay-box .lock { width: 100%; overflow: hidden; max-height: 190px; position: relative; }
.pay-box .lock::after {
  content: ""; position: absolute; inset: auto 0 0 0; height: 110px;
  background: linear-gradient(180deg, rgba(255,255,255,0), #fff 78%);
}

/* ---------- 资质公示 ---------- */
.qual-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.qual-card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius-lg); padding: 26px; }
.qual-card h4 { font-size: 16px; margin-bottom: 10px; }
.qual-card p { font-size: 13px; color: var(--text-2); margin: 0; }
.qual-card .no { font-size: 12px; color: var(--text-3); margin-top: 10px; }

/* ---------- 表格 ---------- */
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: 14px; background: #fff; }
th, td { padding: 14px 16px; border: 1px solid var(--line); text-align: left; }
th { background: var(--bg-2); font-weight: 700; }
td { color: var(--text-2); }
tbody tr:hover td { background: #fcfcfd; }

/* ---------- 团队 ---------- */
.member { background: #fff; border: 1px solid var(--line); border-radius: var(--radius-lg); overflow: hidden; transition: .25s; }
.member:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }
.member__av { height: 150px; display: flex; align-items: center; justify-content: center; font-size: 40px; font-weight: 800; color: #fff; }
.member__body { padding: 20px; }
.member__body h4 { font-size: 17px; }
.member__body .role { font-size: 13px; color: var(--brand); margin-bottom: 10px; }
.member__body p { font-size: 13px; color: var(--text-2); margin: 0; }
.member__tags { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 12px; }
.member__tags span { font-size: 12px; padding: 3px 10px; border-radius: 999px; background: var(--bg-2); color: var(--text-2); }

/* ---------- CTA ---------- */
.cta { background: linear-gradient(120deg, var(--brand), #ff8f4c); color: #fff; border-radius: var(--radius-lg); padding: 44px; display: flex; align-items: center; justify-content: space-between; gap: 30px; flex-wrap: wrap; }
.cta h2 { font-size: 26px; margin-bottom: 8px; }
.cta p { color: rgba(255,255,255,.9); margin: 0; }

/* ---------- 页脚 ---------- */
.site-footer { background: var(--ink); color: rgba(255,255,255,.66); font-size: 14px; }
.footer__top { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1.2fr; gap: 40px; padding: 56px 0 40px; }
.footer__top h4 { font-size: 15px; color: #fff; margin-bottom: 16px; }
.footer__top li { margin-bottom: 10px; }
.footer__top li a { color: rgba(255,255,255,.66); transition: .2s; }
.footer__top li a:hover { color: var(--brand); }
.footer__about p { color: rgba(255,255,255,.55); font-size: 13px; line-height: 1.9; }
.footer__contact li { color: rgba(255,255,255,.66); }
.footer__contact b { color: #fff; font-weight: 600; }
.footer__bottom { border-top: 1px solid rgba(255,255,255,.1); padding: 20px 0 28px; font-size: 13px; }
.footer__bottom .row1 { display: flex; gap: 18px; flex-wrap: wrap; justify-content: space-between; align-items: center; }
.footer__bottom .row2 { margin-top: 10px; color: rgba(255,255,255,.45); font-size: 12px; line-height: 1.9; }
.footer__bottom a:hover { color: var(--brand); }
.beian { display: inline-flex; align-items: center; gap: 6px; }

/* ---------- 响应式 ---------- */
@media (max-width: 1024px) {
  .hero__inner { grid-template-columns: 1fr; padding: 60px 0 64px; }
  .hero__art { display: none; }
  .grid--4 { grid-template-columns: repeat(2, 1fr); }
  .flow { grid-template-columns: repeat(2, 1fr); }
  .footer__top { grid-template-columns: 1fr 1fr; gap: 30px; }
  .stats { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 860px) {
  .nav__toggle { display: block; }
  .menu {
    position: fixed; left: 0; right: 0; top: 112px; bottom: 0; z-index: 99;
    background: #fff; flex-direction: column; align-items: stretch; gap: 0;
    padding: 12px 24px 40px; overflow-y: auto;
    transform: translateY(-12px); opacity: 0; visibility: hidden; transition: .22s;
  }
  .menu.is-open { transform: none; opacity: 1; visibility: visible; }
  .menu__item { border-bottom: 1px solid var(--line); }
  .menu__link { padding: 14px 4px; justify-content: space-between; }
  .submenu {
    position: static; transform: none; opacity: 1; visibility: visible;
    box-shadow: none; border: 0; border-radius: 0; padding: 0 0 10px; min-width: 0;
    display: none;
  }
  .menu__item.is-open > .submenu { display: block; }
  .submenu a { padding-left: 18px; }
  .menu__link .caret { border-top-color: var(--text-3); }
  .topbar__left { display: none; }
  .grid--3, .grid--2, .qual-grid { grid-template-columns: 1fr; }
  .section { padding: 52px 0; }
  .pagehero { padding: 44px 0 40px; }
  .pagehero h1 { font-size: 26px; }
  .hero h1 { font-size: 30px; }
  .section__head h2 { font-size: 23px; }
  .plan-card { grid-template-columns: 1fr; }
  .cta { padding: 28px; }
  .cta h2 { font-size: 21px; }
  .form { padding: 22px; }
}