/* ============================================================
   铂越科技 · 官网首页样式
   与 style.css 共用主色（#185FA5），但独立于后台/应用型页面
   ============================================================ */

:root {
  --primary: #185FA5;
  --primary-dark: #0C447C;
  --primary-light: #2B7FD4;
  --cyan: #16A3C8;
  --bg: #f6f8fb;
  --bg-alt: #eef3f9;
  --card: #ffffff;
  --border: #e4e8ef;
  --text: #1f2733;
  --text-2: #45505f;
  --muted: #6b7686;
  --radius: 14px;
  --shadow-sm: 0 1px 2px rgba(16, 32, 56, .06), 0 2px 8px rgba(16, 32, 56, .04);
  --shadow-md: 0 4px 12px rgba(16, 32, 56, .07), 0 12px 32px rgba(16, 32, 56, .06);
  --shadow-lg: 0 10px 30px rgba(16, 32, 56, .1), 0 30px 60px rgba(16, 32, 56, .08);

  /* 套餐三档配色 */
  --t1-bg: #eef8f0;
  --t1-line: #cfe8d4;
  --t1-fg: #2f7d43;
  --t1-solid: #43a047;
  --t2-bg: #e8f2fd;
  --t2-line: #c9dff7;
  --t2-fg: #1e5fa8;
  --t2-solid: #2b7fd4;
  --t3-bg: #fdf2e0;
  --t3-line: #f5ddb6;
  --t3-fg: #9a6112;
  --t3-solid: #e08a1e;
}

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

html { scroll-behavior: smooth; }

/* 锚点定位时给 sticky 导航留出空间 */
section[id] { scroll-margin-top: 78px; }

body {
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Segoe UI", Roboto, sans-serif;
  background: var(--card);
  color: var(--text);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; }
ul { list-style: none; }
img { max-width: 100%; display: block; }

.wrap { width: 100%; max-width: 1200px; margin: 0 auto; padding: 0 24px; }

/* ===================== 顶部导航 ===================== */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, .92);
  backdrop-filter: saturate(180%) blur(14px);
  -webkit-backdrop-filter: saturate(180%) blur(14px);
  border-bottom: 1px solid transparent;
  transition: border-color .25s, box-shadow .25s;
}
.nav.scrolled {
  border-bottom-color: var(--border);
  box-shadow: 0 2px 14px rgba(16, 32, 56, .06);
}
.nav-inner {
  display: flex;
  align-items: center;
  gap: 28px;
  height: 68px;
}

.logo { display: flex; align-items: center; gap: 10px; flex-shrink: 0; }
.logo-mark {
  width: 34px; height: 34px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--primary) 0%, var(--cyan) 100%);
  color: #fff;
  display: flex; align-items: center; justify-content: center;
  font-weight: 700; font-size: 16px;
  letter-spacing: -.5px;
  box-shadow: 0 4px 10px rgba(24, 95, 165, .28);
}
.logo-text { display: flex; flex-direction: column; line-height: 1.15; }
.logo-name { font-size: 16px; font-weight: 700; letter-spacing: .2px; }
.logo-sub { font-size: 10px; color: var(--muted); letter-spacing: 1.4px; text-transform: uppercase; }

.nav-menu { display: flex; align-items: center; gap: 4px; margin-left: 8px; }
.nav-menu > li { position: relative; }
.nav-menu > li > a,
.nav-menu > li > .nav-parent {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 8px 13px;
  font-size: 14.5px;
  color: var(--text-2);
  border-radius: 8px;
  cursor: pointer;
  transition: color .18s, background .18s;
  white-space: nowrap;
}
.nav-menu > li > a:hover,
.nav-menu > li > .nav-parent:hover { color: var(--primary); background: var(--bg-alt); }
.caret {
  width: 0; height: 0;
  border-left: 4px solid transparent;
  border-right: 4px solid transparent;
  border-top: 5px solid currentColor;
  opacity: .55;
  transition: transform .2s;
}
.nav-menu > li:hover .caret { transform: rotate(180deg); }

.dropdown {
  position: absolute;
  top: calc(100% + 8px);
  left: 0;
  min-width: 232px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  box-shadow: var(--shadow-md);
  padding: 7px;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-6px);
  transition: opacity .18s, transform .18s, visibility .18s;
}
.nav-menu > li:hover .dropdown { opacity: 1; visibility: visible; transform: translateY(0); }
.dropdown a {
  display: block;
  padding: 10px 12px;
  border-radius: 8px;
  transition: background .16s;
}
.dropdown a:hover { background: var(--bg-alt); }
.dropdown .dd-title { font-size: 14px; font-weight: 600; color: var(--text); }
.dropdown .dd-desc { font-size: 12px; color: var(--muted); margin-top: 2px; }

.nav-right { margin-left: auto; display: flex; align-items: center; gap: 10px; }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 7px;
  padding: 10px 20px;
  border-radius: 9px;
  font-size: 14.5px;
  font-weight: 500;
  border: 1px solid transparent;
  cursor: pointer;
  white-space: nowrap;
  transition: transform .16s, box-shadow .16s, background .16s, border-color .16s, color .16s;
}
.btn-primary {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
  color: #fff;
  box-shadow: 0 4px 14px rgba(24, 95, 165, .26);
}
.btn-primary:hover { transform: translateY(-1px); box-shadow: 0 7px 20px rgba(24, 95, 165, .34); }
.btn-ghost {
  background: transparent;
  color: var(--text-2);
  border-color: var(--border);
}
.btn-ghost:hover { border-color: var(--primary); color: var(--primary); background: #fff; }
.btn-light {
  background: rgba(255, 255, 255, .14);
  color: #fff;
  border-color: rgba(255, 255, 255, .34);
}
.btn-light:hover { background: rgba(255, 255, 255, .24); }
.btn-white {
  background: #fff;
  color: var(--primary-dark);
  box-shadow: 0 6px 18px rgba(6, 24, 48, .18);
}
.btn-white:hover { transform: translateY(-1px); }
.btn-lg { padding: 14px 28px; font-size: 16px; border-radius: 11px; }
.btn-sm { padding: 8px 15px; font-size: 13.5px; border-radius: 8px; }

.lang-toggle {
  padding: 8px 13px;
  border: 1px solid var(--border);
  background: #fff;
  border-radius: 8px;
  font-size: 13.5px;
  color: var(--text-2);
  cursor: pointer;
  transition: border-color .16s, color .16s;
}
.lang-toggle:hover { border-color: var(--primary); color: var(--primary); }

.nav-burger {
  display: none;
  width: 40px; height: 40px;
  border: 1px solid var(--border);
  border-radius: 9px;
  background: #fff;
  cursor: pointer;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 4px;
}
.nav-burger span { width: 17px; height: 2px; background: var(--text-2); border-radius: 2px; }

/* ===================== Hero ===================== */
.hero {
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(900px 460px at 78% -8%, rgba(22, 163, 200, .42) 0%, rgba(22, 163, 200, 0) 62%),
    radial-gradient(760px 420px at 8% 108%, rgba(43, 127, 212, .34) 0%, rgba(43, 127, 212, 0) 64%),
    linear-gradient(148deg, #08203c 0%, #0d3562 46%, #185fa5 100%);
  color: #fff;
  padding: 88px 0 104px;
}
.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, .045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, .045) 1px, transparent 1px);
  background-size: 52px 52px;
  mask-image: radial-gradient(circle at 50% 42%, #000 0%, transparent 76%);
  -webkit-mask-image: radial-gradient(circle at 50% 42%, #000 0%, transparent 76%);
  pointer-events: none;
}
.hero .wrap { position: relative; z-index: 2; }
.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(0, .92fr);
  gap: 56px;
  align-items: center;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px 6px 8px;
  border-radius: 100px;
  background: rgba(255, 255, 255, .1);
  border: 1px solid rgba(255, 255, 255, .2);
  font-size: 13px;
  color: rgba(255, 255, 255, .9);
  margin-bottom: 22px;
}
.hero-badge .dot {
  width: 20px; height: 20px;
  border-radius: 50%;
  background: linear-gradient(135deg, #6ee7d7, #16a3c8);
  display: flex; align-items: center; justify-content: center;
  font-size: 11px;
}

.hero h1 {
  font-size: clamp(30px, 3.5vw, 48px);
  line-height: 1.22;
  font-weight: 700;
  letter-spacing: -.5px;
  margin-bottom: 20px;
}
.hero h1 .grad {
  background: linear-gradient(100deg, #7ee8fa 0%, #a8e6b8 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}
.hero-sub {
  font-size: 17px;
  line-height: 1.8;
  color: rgba(255, 255, 255, .8);
  max-width: 540px;
  margin-bottom: 32px;
}
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; margin-bottom: 40px; }

.hero-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 40px;
  padding-top: 28px;
  border-top: 1px solid rgba(255, 255, 255, .16);
}
.hero-stat .num {
  font-size: 26px;
  font-weight: 700;
  letter-spacing: -.5px;
  line-height: 1.2;
}
.hero-stat .num span { font-size: 15px; font-weight: 500; opacity: .78; margin-left: 2px; }
.hero-stat .lbl { font-size: 13px; color: rgba(255, 255, 255, .66); margin-top: 3px; }

/* Hero 右侧浮层卡片 */
.hero-panel {
  background: rgba(255, 255, 255, .09);
  border: 1px solid rgba(255, 255, 255, .2);
  border-radius: 18px;
  padding: 22px;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  box-shadow: 0 24px 60px rgba(3, 16, 34, .4);
}
.hero-panel-title {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 13px;
  color: rgba(255, 255, 255, .7);
  padding-bottom: 14px;
  margin-bottom: 14px;
  border-bottom: 1px solid rgba(255, 255, 255, .13);
}
.hero-panel-title .live {
  display: inline-flex; align-items: center; gap: 6px;
  font-size: 11.5px;
  padding: 3px 9px;
  border-radius: 100px;
  background: rgba(110, 231, 183, .16);
  color: #6ee7b7;
  border: 1px solid rgba(110, 231, 183, .3);
}
.hero-panel-title .live i {
  width: 6px; height: 6px; border-radius: 50%;
  background: #6ee7b7;
  box-shadow: 0 0 0 3px rgba(110, 231, 183, .22);
}
.hero-svc-list { display: grid; gap: 10px; }
.hero-svc {
  display: flex;
  align-items: center;
  gap: 13px;
  padding: 13px 15px;
  border-radius: 12px;
  background: rgba(255, 255, 255, .08);
  border: 1px solid rgba(255, 255, 255, .1);
  transition: background .18s, transform .18s;
}
.hero-svc:hover { background: rgba(255, 255, 255, .15); transform: translateX(3px); }
.hero-svc-ico {
  width: 38px; height: 38px;
  flex-shrink: 0;
  border-radius: 10px;
  display: flex; align-items: center; justify-content: center;
  font-size: 17px;
  background: rgba(255, 255, 255, .94);
  border: 1px solid rgba(255, 255, 255, .45);
  box-shadow: 0 3px 10px rgba(3, 16, 34, .22);
}
.hero-svc-body {
  min-width: 0;
  display: flex;
  flex-direction: column;
}
.hero-svc-name { font-size: 14.5px; font-weight: 600; }
.hero-svc-desc { font-size: 12.5px; color: rgba(255, 255, 255, .62); margin-top: 1px; }
.hero-svc-arrow { margin-left: auto; color: rgba(255, 255, 255, .45); font-size: 15px; }

/* ===================== 通用区块 ===================== */
.section { padding: 88px 0; }
.section.alt { background: var(--bg); }
.section.dark {
  background: linear-gradient(160deg, #08203c 0%, #0d3562 100%);
  color: #fff;
}

.sec-head { text-align: center; max-width: 720px; margin: 0 auto 52px; }
.sec-kicker {
  display: inline-block;
  font-size: 12.5px;
  font-weight: 600;
  letter-spacing: 1.6px;
  text-transform: uppercase;
  color: var(--primary);
  background: rgba(24, 95, 165, .08);
  padding: 5px 13px;
  border-radius: 100px;
  margin-bottom: 14px;
}
.section.dark .sec-kicker { color: #7ee8fa; background: rgba(126, 232, 250, .12); }
.sec-head h2 {
  font-size: clamp(24px, 2.6vw, 34px);
  line-height: 1.3;
  font-weight: 700;
  letter-spacing: -.4px;
  margin-bottom: 14px;
}
.sec-head p { font-size: 15.5px; color: var(--muted); line-height: 1.8; }
.section.dark .sec-head p { color: rgba(255, 255, 255, .7); }

/* ===================== 服务总览卡 ===================== */
.svc-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 24px;
}
.svc-card {
  position: relative;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 30px 26px 26px;
  box-shadow: var(--shadow-sm);
  transition: transform .22s, box-shadow .22s, border-color .22s;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}
.svc-card::before {
  content: "";
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--primary), var(--cyan));
  opacity: 0;
  transition: opacity .22s;
}
.svc-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: #cfe0f2;
}
.svc-card:hover::before { opacity: 1; }
.svc-ico {
  width: 50px; height: 50px;
  border-radius: 13px;
  display: flex; align-items: center; justify-content: center;
  font-size: 22px;
  background: linear-gradient(135deg, rgba(24, 95, 165, .1), rgba(22, 163, 200, .13));
  margin-bottom: 18px;
}
.svc-card h3 { font-size: 19px; font-weight: 700; margin-bottom: 9px; letter-spacing: -.2px; }
.svc-card .svc-desc { font-size: 14px; color: var(--muted); line-height: 1.75; margin-bottom: 18px; }
.svc-feats { display: grid; gap: 8px; margin-bottom: 22px; }
.svc-feats li {
  font-size: 13.5px;
  color: var(--text-2);
  padding-left: 21px;
  position: relative;
}
.svc-feats li::before {
  content: "";
  position: absolute;
  left: 0; top: 7px;
  width: 12px; height: 12px;
  border-radius: 50%;
  background: rgba(24, 95, 165, .1);
}
.svc-feats li::after {
  content: "";
  position: absolute;
  left: 4px; top: 10px;
  width: 4px; height: 6px;
  border: solid var(--primary);
  border-width: 0 1.6px 1.6px 0;
  transform: rotate(42deg);
}
.svc-more {
  margin-top: auto;
  font-size: 14px;
  font-weight: 600;
  color: var(--primary);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.svc-more .arw { transition: transform .18s; }
.svc-card:hover .svc-more .arw { transform: translateX(4px); }

/* ===================== 套餐表（网站制作） ===================== */
.plan-tabs {
  display: flex;
  justify-content: center;
  gap: 8px;
  margin-bottom: 34px;
  flex-wrap: wrap;
}
.plan-tab {
  padding: 11px 26px;
  border-radius: 100px;
  border: 1px solid var(--border);
  background: #fff;
  font-size: 14.5px;
  color: var(--text-2);
  cursor: pointer;
  font-weight: 500;
  transition: all .18s;
}
.plan-tab:hover { border-color: var(--primary-light); color: var(--primary); }
.plan-tab.active {
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  color: #fff;
  border-color: transparent;
  box-shadow: 0 5px 16px rgba(24, 95, 165, .28);
}
.plan-tab .tab-tag {
  display: inline-block;
  margin-left: 7px;
  font-size: 11px;
  padding: 1px 6px;
  border-radius: 4px;
  background: rgba(255, 255, 255, .2);
  vertical-align: 1px;
}
.plan-tab:not(.active) .tab-tag { background: rgba(24, 95, 165, .1); color: var(--primary); }

.plan-panel { display: none; }
.plan-panel.active { display: block; animation: fadeUp .35s ease both; }
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

.plan-note {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  max-width: 940px;
  margin: 0 auto 22px;
  padding: 13px 17px;
  border-radius: 10px;
  background: rgba(24, 95, 165, .055);
  border: 1px solid rgba(24, 95, 165, .13);
  font-size: 13.5px;
  color: var(--text-2);
  line-height: 1.7;
}
.plan-note .ico { color: var(--primary); font-size: 15px; flex-shrink: 0; line-height: 1.5; }

/* 表格容器：窄屏横向滚动 */
.plan-scroll-wrap { position: relative; }
.plan-scroll {
  overflow-x: auto;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: #fff;
  box-shadow: var(--shadow-sm);
  -webkit-overflow-scrolling: touch;
}
/* 窄屏滑动提示（桌面隐藏） */
.plan-hint {
  display: none;
  width: fit-content;
  margin: 0 auto 12px;
  padding: 6px 15px;
  border-radius: 999px;
  background: rgba(24, 95, 165, .07);
  border: 1px dashed rgba(24, 95, 165, .32);
  color: var(--primary);
  font-size: 12.5px;
  font-weight: 600;
  letter-spacing: .2px;
  line-height: 1.5;
  text-align: center;
}
/* 窄屏：显示提示 + 右缘内阴影（内阴影不随内容滚动，始终贴住可视区右边缘） */
@media (max-width: 860px) {
  .plan-hint { display: block; }
  .plan-scroll {
    box-shadow: inset -18px 0 18px -18px rgba(24, 95, 165, .45), var(--shadow-sm);
  }
}
.plan-table {
  width: 100%;
  min-width: 760px;
  border-collapse: separate;
  border-spacing: 0;
  font-size: 14px;
}
.plan-table th,
.plan-table td {
  padding: 13px 18px;
  text-align: center;
  border-bottom: 1px solid var(--border);
  vertical-align: middle;
}
.plan-table thead th {
  position: sticky;
  top: 0;
  background: #f8fafd;
  font-weight: 600;
  font-size: 13.5px;
  color: var(--text-2);
  border-bottom: 1px solid var(--border);
  z-index: 2;
}
.plan-table thead th:first-child {
  text-align: left;
  border-top-left-radius: var(--radius);
}
.plan-table thead th:last-child { border-top-right-radius: var(--radius); }

/* 表头左侧两列：横向滚动时固定 */
.plan-table thead th.th-group,
.plan-table thead th.th-feat {
  position: sticky;
  z-index: 4;
  background: #f8fafd;
}
.plan-table thead th.th-group { left: 0; width: 52px; min-width: 52px; }
.plan-table thead th.th-feat { left: 52px; text-align: left; min-width: 260px; }

/* 三档列配色 */
.plan-table .col-t1 { background: var(--t1-bg); }
.plan-table .col-t2 { background: var(--t2-bg); }
.plan-table .col-t3 { background: var(--t3-bg); }
.plan-table thead .th-t1 { background: var(--t1-solid); color: #fff; border-bottom-color: var(--t1-solid); }
.plan-table thead .th-t2 { background: var(--t2-solid); color: #fff; border-bottom-color: var(--t2-solid); }
.plan-table thead .th-t3 { background: var(--t3-solid); color: #fff; border-bottom-color: var(--t3-solid); position: relative; }
.plan-table thead .th-t3 .badge-rec {
  position: absolute;
  top: -1px; right: 10px;
  font-size: 10.5px;
  background: #fff;
  color: var(--t3-fg);
  padding: 1px 7px;
  border-radius: 0 0 6px 6px;
  font-weight: 700;
  letter-spacing: .3px;
}

/* 首列：功能名 + 模块分组列 */
.plan-table .feat-name {
  text-align: left;
  color: var(--text-2);
  font-size: 13.8px;
  position: sticky;
  left: 52px;
  background: #fff;
  z-index: 2;
  min-width: 260px;
}
.plan-table tbody tr:hover .feat-name { background: #f8fafd; }
.plan-table .group-cell {
  writing-mode: vertical-rl;
  text-orientation: upright;
  text-align: center;
  font-weight: 700;
  font-size: 12px;
  letter-spacing: 1.5px;
  line-height: 1.1;
  white-space: nowrap;
  color: #fff;
  background: var(--primary);
  width: 52px;
  min-width: 52px;
  padding: 0;
  position: sticky;
  left: 0;
  z-index: 3;
  border-bottom: 1px solid rgba(255, 255, 255, .22);
}
/* 行数少的分组：进一步收紧，避免竖排文字溢出单元格 */
.plan-table .group-cell.g-sm {
  font-size: 11px;
  letter-spacing: .5px;
}
.plan-table tbody tr:first-child .group-cell { border-top-left-radius: 0; }
.plan-table .group-cell.g-alt { background: var(--primary-dark); }
.plan-table td.group-cell { vertical-align: middle; }

/* 单元格内容 */
.mk {
  display: inline-block;
  font-size: 15.5px;
  font-weight: 700;
  line-height: 1;
}
.mk.yes { color: var(--t1-fg); }
.col-t2 .mk.yes { color: var(--t2-fg); }
.col-t3 .mk.yes { color: var(--t3-fg); }
.mk.no { color: #b8c1cd; font-weight: 400; font-size: 14px; }
.cell-val { font-weight: 600; color: var(--text); font-size: 14px; }
.cell-opt {
  display: inline-block;
  font-size: 12px;
  padding: 2px 9px;
  border-radius: 100px;
  border: 1px dashed #c3cddb;
  color: var(--muted);
}
.cell-span {
  text-align: center;
  font-size: 13.5px;
  color: var(--text-2);
  background: #fbfcfe;
}

/* 表尾：不写价格，引导咨询 */
.plan-foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  flex-wrap: wrap;
  padding: 18px 22px;
  border-top: 1px solid var(--border);
  background: #f8fafd;
  border-radius: 0 0 var(--radius) var(--radius);
}
.plan-foot p { font-size: 13.5px; color: var(--muted); }
.plan-foot .actions { display: flex; gap: 10px; flex-wrap: wrap; }

/* ===================== 境外 IP 服务 ===================== */
.ip-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr);
  gap: 56px;
  align-items: center;
}
.ip-copy .sec-kicker { margin-bottom: 16px; }
.ip-copy h2 {
  font-size: clamp(24px, 2.6vw, 33px);
  font-weight: 700;
  line-height: 1.3;
  letter-spacing: -.4px;
  margin-bottom: 16px;
}
.ip-copy > p { font-size: 15.5px; color: var(--muted); line-height: 1.85; margin-bottom: 26px; }
.ip-feats { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px 22px; margin-bottom: 32px; }
.ip-feat { display: flex; gap: 11px; align-items: flex-start; }
.ip-feat-ico {
  width: 34px; height: 34px;
  flex-shrink: 0;
  border-radius: 9px;
  background: rgba(24, 95, 165, .09);
  display: flex; align-items: center; justify-content: center;
  font-size: 15px;
}
.ip-feat h4 { font-size: 14.5px; font-weight: 600; margin-bottom: 2px; }
.ip-feat p { font-size: 13px; color: var(--muted); line-height: 1.6; }

.ip-visual {
  background: linear-gradient(160deg, #0b2b4d 0%, #134a7d 100%);
  border-radius: 18px;
  padding: 26px;
  color: #fff;
  box-shadow: 0 22px 54px rgba(8, 32, 60, .28);
}
.ip-visual-head {
  display: flex; align-items: center; justify-content: space-between;
  font-size: 13px;
  color: rgba(255, 255, 255, .72);
  padding-bottom: 16px;
  margin-bottom: 18px;
  border-bottom: 1px solid rgba(255, 255, 255, .12);
}
.ip-region-chips { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 20px; }
.ip-chip {
  font-size: 12.5px;
  padding: 6px 12px;
  border-radius: 100px;
  background: rgba(255, 255, 255, .1);
  border: 1px solid rgba(255, 255, 255, .16);
  color: rgba(255, 255, 255, .88);
  transition: background .16s;
}
.ip-chip:hover { background: rgba(255, 255, 255, .2); }
.ip-steps { display: grid; gap: 11px; }
.ip-step {
  display: flex; align-items: center; gap: 12px;
  padding: 11px 14px;
  border-radius: 10px;
  background: rgba(255, 255, 255, .07);
  font-size: 13.5px;
}
.ip-step .n {
  width: 22px; height: 22px;
  flex-shrink: 0;
  border-radius: 50%;
  background: rgba(126, 232, 250, .18);
  border: 1px solid rgba(126, 232, 250, .34);
  color: #9defff;
  font-size: 11.5px;
  font-weight: 700;
  display: flex; align-items: center; justify-content: center;
}
.ip-step .st { color: rgba(255, 255, 255, .86); }
.ip-step .st b { color: #fff; font-weight: 600; }
.ip-visual-foot {
  margin-top: 20px;
  padding-top: 16px;
  border-top: 1px solid rgba(255, 255, 255, .12);
  display: flex; gap: 10px; flex-wrap: wrap;
}
.ip-visual-foot .btn { flex: 1; min-width: 130px; }

/* ===================== 流程 ===================== */
.flow-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 22px;
  position: relative;
}
.flow-card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 26px 22px;
  box-shadow: var(--shadow-sm);
  position: relative;
  transition: transform .2s, box-shadow .2s;
}
.flow-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-md); }
.flow-num {
  font-size: 30px;
  font-weight: 800;
  line-height: 1;
  letter-spacing: -1px;
  background: linear-gradient(135deg, var(--primary), var(--cyan));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  margin-bottom: 14px;
}
.flow-card h4 { font-size: 16px; font-weight: 700; margin-bottom: 7px; }
.flow-card p { font-size: 13.5px; color: var(--muted); line-height: 1.7; }

/* ===================== 优势 ===================== */
.adv-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
}
.adv-card {
  padding: 26px 24px;
  border-radius: var(--radius);
  background: rgba(255, 255, 255, .06);
  border: 1px solid rgba(255, 255, 255, .12);
  transition: background .2s, transform .2s;
}
.adv-card:hover { background: rgba(255, 255, 255, .11); transform: translateY(-3px); }
.adv-ico {
  width: 42px; height: 42px;
  border-radius: 11px;
  background: rgba(255, 255, 255, .94);
  border: 1px solid rgba(255, 255, 255, .55);
  box-shadow: 0 4px 12px rgba(0, 0, 0, .14);
  display: flex; align-items: center; justify-content: center;
  font-size: 19px;
  margin-bottom: 16px;
}
.adv-card h4 { font-size: 16px; font-weight: 700; margin-bottom: 8px; }
.adv-card p { font-size: 13.5px; color: rgba(255, 255, 255, .68); line-height: 1.75; }

/* ===================== CTA ===================== */
.cta {
  padding: 76px 0;
  background:
    radial-gradient(700px 340px at 82% 12%, rgba(22, 163, 200, .28) 0%, rgba(22, 163, 200, 0) 62%),
    linear-gradient(120deg, #0C447C 0%, #185FA5 100%);
  color: #fff;
  text-align: center;
}
.cta h2 { font-size: clamp(23px, 2.5vw, 32px); font-weight: 700; margin-bottom: 14px; letter-spacing: -.3px; }
.cta p { font-size: 15.5px; color: rgba(255, 255, 255, .78); max-width: 620px; margin: 0 auto 30px; line-height: 1.8; }
.cta-actions { display: flex; justify-content: center; gap: 14px; flex-wrap: wrap; }
.cta-meta {
  margin-top: 26px;
  font-size: 13.5px;
  color: rgba(255, 255, 255, .6);
  display: flex;
  justify-content: center;
  gap: 26px;
  flex-wrap: wrap;
}

/* ===================== 页脚 ===================== */
.footer {
  background: #0a1c30;
  color: rgba(255, 255, 255, .62);
  padding: 60px 0 26px;
  font-size: 13.5px;
}
.footer-top {
  display: grid;
  grid-template-columns: minmax(0, 1.6fr) repeat(3, minmax(0, 1fr));
  gap: 40px;
  padding-bottom: 38px;
  border-bottom: 1px solid rgba(255, 255, 255, .1);
}
.footer-brand .logo-name { color: #fff; font-size: 16px; }
.footer-brand .logo-sub { color: rgba(255, 255, 255, .42); }
.footer-brand p { margin-top: 16px; line-height: 1.85; max-width: 330px; }
.footer h5 {
  color: #fff;
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 16px;
  letter-spacing: .2px;
}
.footer-links { display: grid; gap: 10px; }
.footer-links a { transition: color .16s; }
.footer-links a:hover { color: #7ee8fa; }
.footer-contact { display: grid; gap: 11px; }
.footer-contact li { display: flex; gap: 9px; align-items: flex-start; line-height: 1.65; }
.footer-contact .ci { color: #7ee8fa; flex-shrink: 0; }
.footer-bottom {
  padding-top: 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
  font-size: 12.5px;
  color: rgba(255, 255, 255, .42);
}

/* ===================== 返回顶部 ===================== */
.to-top {
  position: fixed;
  right: 26px;
  bottom: 30px;
  width: 44px; height: 44px;
  border-radius: 50%;
  background: #fff;
  border: 1px solid var(--border);
  box-shadow: var(--shadow-md);
  color: var(--primary);
  font-size: 17px;
  cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: opacity .25s, transform .25s, visibility .25s;
  z-index: 90;
}
.to-top.show { opacity: 1; visibility: visible; transform: translateY(0); }

/* ===================== 响应式 ===================== */
@media (max-width: 1080px) {
  .hero-grid { grid-template-columns: 1fr; gap: 44px; }
  .hero-panel { max-width: 520px; }
  .svc-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .adv-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .flow-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .ip-layout { grid-template-columns: 1fr; gap: 40px; }
  .footer-top { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 860px) {
  .nav-menu, .nav-right .btn-login-desktop { display: none; }
  .nav-burger { display: flex; }
  .nav-inner { height: 62px; gap: 14px; }
  .nav.mobile-open .nav-menu {
    display: flex;
    position: absolute;
    top: 100%; left: 0; right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 2px;
    background: #fff;
    border-bottom: 1px solid var(--border);
    box-shadow: var(--shadow-md);
    padding: 12px 18px 18px;
    margin-left: 0;
  }
  .nav.mobile-open .nav-menu > li > a,
  .nav.mobile-open .nav-menu > li > .nav-parent { padding: 12px 6px; font-size: 15px; }
  .nav.mobile-open .dropdown {
    position: static;
    opacity: 1; visibility: visible; transform: none;
    box-shadow: none;
    border: none;
    border-left: 2px solid var(--border);
    border-radius: 0;
    margin-left: 6px;
    padding: 0 0 0 6px;
    min-width: 0;
  }
  .nav.mobile-open .caret { display: none; }

  .hero { padding: 62px 0 74px; }
  .hero-stats { gap: 26px; }
  .section { padding: 64px 0; }
  .sec-head { margin-bottom: 38px; }
  .ip-feats { grid-template-columns: 1fr; }
}

@media (max-width: 640px) {
  .wrap { padding: 0 18px; }
  .svc-grid, .adv-grid, .flow-grid, .footer-top { grid-template-columns: 1fr; }
  .hero h1 { font-size: 28px; }
  .hero-sub { font-size: 15.5px; }
  .hero-stat .num { font-size: 22px; }
  .btn-lg { padding: 12px 22px; font-size: 15px; }
  .plan-table { min-width: 510px; font-size: 13px; }
  .plan-table th, .plan-table td { padding: 11px 13px; }
  /* 收紧固定列（用 max-width 压制自动表格布局的扩张），让方案列真正露出来 */
  .plan-table thead th.th-group { width: 44px; min-width: 44px; max-width: 44px; }
  .plan-table .group-cell { width: 44px; min-width: 44px; max-width: 44px; }
  .plan-table thead th.th-feat {
    left: 44px; width: 172px; min-width: 172px; max-width: 172px;
  }
  .plan-table .feat-name {
    left: 44px;
    width: 172px; min-width: 172px; max-width: 172px;
    font-size: 12.6px;
    line-height: 1.45;
    padding-right: 8px;
  }
  .plan-table .th-t1, .plan-table .th-t2, .plan-table .th-t3,
  .plan-table .col-t1, .plan-table .col-t2, .plan-table .col-t3 {
    width: 98px; min-width: 98px; max-width: 98px;
  }
  .plan-foot { flex-direction: column; align-items: flex-start; }
  .plan-foot .actions { width: 100%; }
  .plan-foot .actions .btn { flex: 1; }
  .to-top { right: 16px; bottom: 20px; }
}