/*
Theme Name: SocialHub Neon
Theme URI: https://example.com/socialhub-neon
Author: WorkBuddy
Author URI: https://example.com
Description: 海译通翻译软件官网主题（天蓝色科幻风，参考 heiyt.com 版式）。暗色星域背景、霓虹辉光、应用图标跑道与轨道动画、幻灯片展示、四平台客户端下载区、右侧垂直居中 Telegram/微信客服浮窗、长文介绍与文章资讯区块，内置「海译通翻译软件」关键词的 SEO 输出，支持简体中文 / 繁體中文 / English / 日本語 一键切换，文案与下载链接可在 WordPress 后台「外观 - 自定义」中修改。
Version: 2.0.0
Requires at least: 5.9
Tested up to: 6.7
Requires PHP: 7.4
License: GNU General Public License v2 or later
License URI: http://www.gnu.org/licenses/gpl-2.0.html
Text Domain: socialhub-neon
Tags: blue, dark, one-column, custom-logo, custom-menu, translation-ready
*/

:root {
  --bg0: #04101d;
  --bg1: #061827;
  --bg2: #0a2238;
  --panel: rgba(10, 34, 54, .62);
  --panel-2: rgba(7, 27, 44, .85);
  --line: rgba(125, 211, 252, .18);
  --line-strong: rgba(154, 220, 255, .38);
  --cyan: #7dd3fc;
  --blue: #38bdf8;
  --blue-soft: #9adcff;
  --violet: #60a5fa;
  --text: #e9f1ff;
  --text-2: #b8caea;
  --muted: #7d92b8;
  --radius: 18px;
  --glow: 0 0 40px rgba(56, 189, 248, .35);
  --max: 1200px;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  background: var(--bg0);
  color: var(--text);
  line-height: 1.7;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

/* 星域背景层 */
body::before {
  content: "";
  position: fixed; inset: 0; z-index: -2;
  background:
    radial-gradient(900px 600px at 12% -8%, rgba(56, 189, 248, .28), transparent 60%),
    radial-gradient(800px 520px at 88% 4%, rgba(125, 211, 252, .16), transparent 62%),
    radial-gradient(1000px 700px at 50% 110%, rgba(96, 165, 250, .18), transparent 60%),
    linear-gradient(180deg, var(--bg0) 0%, var(--bg1) 45%, var(--bg0) 100%);
}
body::after {
  content: "";
  position: fixed; inset: 0; z-index: -1; pointer-events: none;
  background-image:
    linear-gradient(rgba(125, 211, 252, .055) 1px, transparent 1px),
    linear-gradient(90deg, rgba(125, 211, 252, .055) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(circle at 50% 30%, #000 0%, transparent 78%);
  -webkit-mask-image: radial-gradient(circle at 50% 30%, #000 0%, transparent 78%);
}

img { max-width: 100%; display: block; }
a { color: var(--blue-soft); text-decoration: none; transition: color .2s; }
a:hover { color: var(--cyan); }

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

/* ===================== Header ===================== */
.site-header {
  position: sticky; top: 0; z-index: 200;
  backdrop-filter: blur(18px);
  background: rgba(4, 9, 22, .72);
  border-bottom: 1px solid var(--line);
}
.site-header::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: -1px; height: 1px;
  background: linear-gradient(90deg, transparent, rgba(125, 211, 252, .7), transparent);
  opacity: .6;
}
.header-inner { display: flex; align-items: center; justify-content: space-between; height: 74px; gap: 18px; }

.brand { display: flex; align-items: center; gap: 12px; }
.brand-mark {
  width: 38px; height: 38px; border-radius: 11px; position: relative; flex: none;
  background: linear-gradient(135deg, var(--blue), var(--cyan));
  box-shadow: 0 0 22px rgba(125, 211, 252, .55);
  display: flex; align-items: center; justify-content: center;
  color: #04101f; font-weight: 900; font-size: 18px; letter-spacing: -.5px;
}
.brand-text { display: flex; flex-direction: column; line-height: 1.15; }
.brand-name { font-size: 19px; font-weight: 800; letter-spacing: 1.2px; color: #fff; }
.brand-name span { color: var(--cyan); }
.brand-sub { font-size: 10px; letter-spacing: 3px; color: var(--muted); text-transform: uppercase; }
.custom-logo { max-height: 40px; width: auto; }

.main-navigation ul { display: flex; gap: 4px; list-style: none; align-items: center; }
.main-navigation a {
  display: block; padding: 9px 15px; border-radius: 9px; font-size: 14.5px;
  color: var(--text-2); font-weight: 600; position: relative; transition: .22s;
}
.main-navigation a:hover { color: #fff; background: rgba(56, 189, 248, .14); }
.main-navigation a::after {
  content: ""; position: absolute; left: 50%; bottom: 3px; width: 0; height: 2px;
  background: linear-gradient(90deg, var(--cyan), var(--blue));
  transform: translateX(-50%); transition: width .25s; border-radius: 2px;
}
.main-navigation a:hover::after { width: 26px; }

.header-right { display: flex; align-items: center; gap: 12px; }

/* 语言切换 */
.lang-switch { position: relative; }
.lang-btn {
  display: flex; align-items: center; gap: 7px; cursor: pointer;
  background: rgba(56, 189, 248, .12); border: 1px solid var(--line-strong);
  color: var(--text-2); padding: 8px 13px; border-radius: 10px;
  font-size: 13.5px; font-weight: 600; font-family: inherit; transition: .2s;
}
.lang-btn:hover { border-color: var(--cyan); color: #fff; box-shadow: 0 0 18px rgba(125, 211, 252, .25); }
.lang-btn svg { width: 15px; height: 15px; stroke: var(--cyan); fill: none; stroke-width: 1.8; }
.lang-menu {
  position: absolute; right: 0; top: calc(100% + 10px); min-width: 150px;
  background: rgba(7, 16, 36, .97); border: 1px solid var(--line-strong);
  border-radius: 12px; padding: 6px; display: none;
  box-shadow: 0 22px 50px rgba(0, 0, 0, .6), 0 0 30px rgba(56, 189, 248, .2);
}
.lang-menu.open { display: block; animation: dropIn .18s ease; }
@keyframes dropIn { from { opacity: 0; transform: translateY(-6px); } to { opacity: 1; transform: none; } }
.lang-menu button {
  display: flex; width: 100%; align-items: center; gap: 9px; padding: 9px 12px;
  background: none; border: none; color: var(--text-2); font-size: 14px;
  font-family: inherit; cursor: pointer; border-radius: 8px; text-align: left; transition: .18s;
}
.lang-menu button:hover { background: rgba(56, 189, 248, .18); color: #fff; }
.lang-menu button.active { color: var(--cyan); background: rgba(125, 211, 252, .1); }
.lang-menu .flag { font-size: 12px; letter-spacing: 1px; opacity: .8; min-width: 26px; }

/* 按钮 */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 9px;
  padding: 12px 26px; border-radius: 11px; font-size: 15px; font-weight: 700;
  border: 1px solid transparent; cursor: pointer; transition: .25s; white-space: nowrap;
  font-family: inherit;
}
.btn-primary {
  color: #04101f !important;
  background: linear-gradient(120deg, var(--cyan), var(--blue));
  box-shadow: 0 10px 30px rgba(125, 211, 252, .3), inset 0 0 0 1px rgba(255, 255, 255, .2);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 16px 40px rgba(125, 211, 252, .45); }
.btn-ghost {
  color: var(--text) !important; background: rgba(56, 189, 248, .1);
  border-color: var(--line-strong);
}
.btn-ghost:hover { border-color: var(--cyan); background: rgba(125, 211, 252, .12); }
.btn-sm { padding: 9px 18px; font-size: 13.5px; border-radius: 9px; }

.nav-toggle { display: none; background: none; border: 1px solid var(--line-strong); border-radius: 9px; padding: 8px 9px; cursor: pointer; }
.nav-toggle span { display: block; width: 20px; height: 2px; background: var(--text-2); margin: 4px 0; border-radius: 2px; }

/* ===================== Hero ===================== */
.hero { position: relative; padding: 90px 0 100px; overflow: hidden; }
.hero-beam {
  position: absolute; left: 0; right: 0; top: 0; height: 2px;
  background: linear-gradient(90deg, transparent, rgba(125, 211, 252, .9), transparent);
  animation: beam 7s linear infinite; opacity: .5;
}
@keyframes beam { 0% { transform: translateY(0); opacity: 0; } 15% { opacity: .6; } 100% { transform: translateY(620px); opacity: 0; } }

.hero-inner { display: grid; grid-template-columns: 1.05fr .95fr; gap: 50px; align-items: center; }

.hero-badge {
  display: inline-flex; align-items: center; gap: 9px; font-size: 13px;
  padding: 7px 16px 7px 10px; border-radius: 999px; margin-bottom: 26px;
  color: #cfe4ff; background: rgba(56, 189, 248, .12);
  border: 1px solid var(--line-strong);
}
.hero-badge i {
  width: 7px; height: 7px; border-radius: 50%; background: var(--cyan); display: block;
  box-shadow: 0 0 10px var(--cyan); animation: pulse 1.8s infinite;
}
@keyframes pulse { 0%, 100% { opacity: 1; transform: scale(1); } 50% { opacity: .45; transform: scale(.8); } }

.hero h1 {
  font-size: 52px; line-height: 1.18; font-weight: 800; letter-spacing: -.5px; margin-bottom: 22px;
}
.hero h1 em {
  font-style: normal;
  background: linear-gradient(100deg, var(--cyan), var(--blue-soft) 60%, var(--violet));
  -webkit-background-clip: text; background-clip: text; color: transparent;
  filter: drop-shadow(0 0 26px rgba(56, 189, 248, .45));
}
.hero-sub { font-size: 17px; color: var(--text-2); max-width: 560px; margin-bottom: 34px; }

.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; margin-bottom: 40px; }

.platform-row { display: flex; gap: 10px; flex-wrap: wrap; margin-bottom: 38px; }
.platform-chip {
  display: inline-flex; align-items: center; gap: 8px; font-size: 13px;
  color: var(--text-2); padding: 7px 14px; border-radius: 9px;
  background: rgba(255, 255, 255, .03); border: 1px solid var(--line);
}
.platform-chip svg { width: 15px; height: 15px; fill: currentColor; opacity: .85; }

.hero-stats { display: flex; gap: 38px; flex-wrap: wrap; }
.hero-stats .num {
  font-size: 30px; font-weight: 800; letter-spacing: -.5px;
  background: linear-gradient(120deg, #fff, var(--blue-soft));
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.hero-stats .lbl { font-size: 12.5px; color: var(--muted); letter-spacing: .5px; }

/* 轨道动画 */
.orbit-wrap { position: relative; height: 460px; display: flex; align-items: center; justify-content: center; }
.orbit-core {
  position: absolute; width: 150px; height: 150px; border-radius: 50%;
  background: radial-gradient(circle at 35% 30%, rgba(125, 211, 252, .35), rgba(56, 189, 248, .12) 55%, transparent 70%);
  border: 1px solid rgba(125, 211, 252, .35);
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 0 70px rgba(125, 211, 252, .35), inset 0 0 40px rgba(56, 189, 248, .3);
  animation: corePulse 4s ease-in-out infinite;
}
@keyframes corePulse { 0%, 100% { transform: scale(1); } 50% { transform: scale(1.05); } }
.orbit-core span { font-size: 13px; letter-spacing: 4px; color: #bfe9ff; text-transform: uppercase; }

.orbit-ring {
  position: absolute; border-radius: 50%; border: 1px dashed rgba(125, 211, 252, .25);
  animation: spin linear infinite;
}
.orbit-ring.r1 { width: 270px; height: 270px; animation-duration: 26s; }
.orbit-ring.r2 { width: 370px; height: 370px; animation-duration: 40s; border-style: solid; border-color: rgba(125, 211, 252, .13); }
.orbit-ring.r3 { width: 460px; height: 460px; animation-duration: 58s; }
@keyframes spin { to { transform: rotate(360deg); } }

.orbit-slot { position: absolute; top: 50%; left: 50%; width: 0; height: 0; }
.orbit-node {
  position: absolute; top: -23px; left: -23px; width: 46px; height: 46px;
  border-radius: 13px; display: flex; align-items: center; justify-content: center;
  color: #fff; font-weight: 800; font-size: 16px;
  box-shadow: 0 8px 24px rgba(0, 0, 0, .5), 0 0 0 1px rgba(255, 255, 255, .14) inset;
  animation: spinRev linear infinite;
  background-image: none;
}
@keyframes spinRev { to { transform: rotate(-360deg); } }
.orbit-node::after {
  content: ""; position: absolute; inset: -5px; border-radius: 16px;
  border: 1px solid rgba(255, 255, 255, .12); opacity: 0;
}
.orbit-node:hover::after { opacity: 1; }

/* ===================== 应用跑道（幻灯）===================== */
.marquee-section { padding: 6px 0 46px; position: relative; }
.marquee-section::before, .marquee-section::after {
  content: ""; position: absolute; top: 0; bottom: 0; width: 150px; z-index: 3; pointer-events: none;
}
.marquee-section::before { left: 0; background: linear-gradient(90deg, var(--bg0), transparent); }
.marquee-section::after { right: 0; background: linear-gradient(270deg, var(--bg0), transparent); }

.marquee { overflow: hidden; padding: 10px 0; }
.marquee-track { display: flex; gap: 16px; width: max-content; animation: scrollX 46s linear infinite; }
.marquee.reverse .marquee-track { animation-direction: reverse; animation-duration: 56s; }
.marquee:hover .marquee-track { animation-play-state: paused; }
@keyframes scrollX { from { transform: translateX(0); } to { transform: translateX(-50%); } }

.mq-item {
  display: flex; align-items: center; gap: 12px; padding: 11px 20px 11px 12px;
  border-radius: 14px; background: var(--panel); border: 1px solid var(--line);
  backdrop-filter: blur(10px); flex: none; transition: .25s;
}
.mq-item:hover { border-color: var(--cyan); box-shadow: 0 0 28px rgba(125, 211, 252, .22); transform: translateY(-2px); }
.mq-ico {
  width: 38px; height: 38px; border-radius: 11px; flex: none;
  display: flex; align-items: center; justify-content: center;
  color: #fff; font-weight: 800; font-size: 15px;
  box-shadow: 0 4px 14px rgba(0, 0, 0, .35), inset 0 0 0 1px rgba(255, 255, 255, .18);
}
.mq-name { font-size: 14.5px; font-weight: 700; color: var(--text); white-space: nowrap; }
.mq-region { font-size: 11px; color: var(--muted); white-space: nowrap; }

/* ===================== 通用标题 ===================== */
.section { padding: 92px 0; position: relative; }
.section-head { text-align: center; max-width: 760px; margin: 0 auto 54px; }
.kicker {
  display: inline-block; font-size: 12px; letter-spacing: 4px; font-weight: 700;
  color: var(--cyan); text-transform: uppercase; margin-bottom: 14px; position: relative;
}
.kicker::before, .kicker::after {
  content: ""; display: inline-block; width: 22px; height: 1px; vertical-align: middle;
  background: linear-gradient(90deg, transparent, var(--cyan)); margin-right: 10px;
}
.kicker::after { margin: 0 0 0 10px; background: linear-gradient(90deg, var(--cyan), transparent); }
.section-head h2 { font-size: 38px; font-weight: 800; line-height: 1.3; margin-bottom: 14px; letter-spacing: -.3px; }
.section-head p { color: var(--muted); font-size: 16px; }

/* ===================== 应用网格 ===================== */
.filter-tabs { display: flex; gap: 10px; justify-content: center; margin-bottom: 42px; flex-wrap: wrap; }
.filter-tabs button {
  padding: 9px 22px; border-radius: 10px; font-size: 14px; font-weight: 600;
  background: rgba(255, 255, 255, .03); color: var(--text-2);
  border: 1px solid var(--line); cursor: pointer; font-family: inherit; transition: .22s;
}
.filter-tabs button:hover { border-color: var(--line-strong); color: #fff; }
.filter-tabs button.active {
  color: #04101f; border-color: transparent;
  background: linear-gradient(120deg, var(--cyan), var(--blue));
  box-shadow: 0 8px 24px rgba(125, 211, 252, .3);
}

.apps-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(210px, 1fr)); gap: 18px; }
.app-card {
  position: relative; padding: 26px 20px; border-radius: var(--radius);
  background: var(--panel); border: 1px solid var(--line);
  backdrop-filter: blur(10px); text-align: center; overflow: hidden; transition: .28s;
}
.app-card::before {
  content: ""; position: absolute; inset: 0;
  background: radial-gradient(240px 130px at 50% 0%, rgba(56, 189, 248, .22), transparent 70%);
  opacity: 0; transition: opacity .3s;
}
.app-card:hover { transform: translateY(-7px); border-color: var(--line-strong); box-shadow: 0 22px 50px rgba(0, 0, 0, .5), var(--glow); }
.app-card:hover::before { opacity: 1; }
.app-card > * { position: relative; z-index: 1; }
.app-ico {
  width: 62px; height: 62px; border-radius: 17px; margin: 0 auto 15px;
  display: flex; align-items: center; justify-content: center;
  color: #fff; font-size: 23px; font-weight: 800;
  box-shadow: 0 10px 26px rgba(0, 0, 0, .45), inset 0 0 0 1px rgba(255, 255, 255, .2);
  transition: transform .3s;
}
.app-card:hover .app-ico { transform: scale(1.08) rotate(-4deg); }
.app-card h3 { font-size: 16.5px; font-weight: 800; margin-bottom: 3px; }
.app-tag {
  display: inline-block; font-size: 11px; padding: 2px 10px; border-radius: 999px;
  color: var(--cyan); background: rgba(125, 211, 252, .1); border: 1px solid rgba(125, 211, 252, .2);
  margin-bottom: 9px;
}
.app-card p { font-size: 13px; color: var(--muted); line-height: 1.6; }

/* ===================== 幻灯 / 展示 ===================== */
.showcase { position: relative; }
.slider {
  position: relative; border-radius: 24px; overflow: hidden;
  border: 1px solid var(--line-strong);
  background: linear-gradient(160deg, rgba(14, 30, 62, .9), rgba(6, 13, 30, .95));
  box-shadow: 0 40px 90px rgba(0, 0, 0, .55), 0 0 70px rgba(56, 189, 248, .16);
}
.slider-track { display: flex; transition: transform .65s cubic-bezier(.65, .05, .35, 1); }
.slide { min-width: 100%; display: grid; grid-template-columns: 1.05fr .95fr; gap: 30px; padding: 46px 48px; align-items: center; }
.slide-copy .num-tag {
  font-size: 12px; letter-spacing: 3px; color: var(--cyan); font-weight: 700; margin-bottom: 12px; display: block;
}
.slide-copy h3 { font-size: 27px; font-weight: 800; margin-bottom: 12px; }
.slide-copy p { color: var(--text-2); font-size: 15px; }
.slide-copy ul { list-style: none; margin-top: 20px; display: grid; gap: 9px; }
.slide-copy li { font-size: 14px; color: var(--text-2); padding-left: 26px; position: relative; }
.slide-copy li::before {
  content: ""; position: absolute; left: 4px; top: 9px; width: 9px; height: 9px;
  border-radius: 2px; transform: rotate(45deg);
  background: linear-gradient(135deg, var(--cyan), var(--blue)); box-shadow: 0 0 10px rgba(125, 211, 252, .7);
}

/* 模拟界面 */
.screen {
  border-radius: 16px; overflow: hidden; border: 1px solid var(--line);
  background: rgba(4, 10, 24, .85); box-shadow: 0 24px 60px rgba(0, 0, 0, .6);
}
.screen-bar {
  display: flex; align-items: center; gap: 7px; padding: 11px 14px;
  background: linear-gradient(90deg, rgba(56, 189, 248, .22), rgba(125, 211, 252, .1));
  border-bottom: 1px solid var(--line);
}
.screen-bar i { width: 9px; height: 9px; border-radius: 50%; background: rgba(255, 255, 255, .25); display: block; }
.screen-bar span { margin-left: auto; font-size: 11px; color: var(--muted); letter-spacing: 1px; }
.screen-body { padding: 18px; display: grid; gap: 12px; }
.chat-row { display: flex; align-items: center; gap: 11px; padding: 9px 11px; border-radius: 11px; background: rgba(255, 255, 255, .03); border: 1px solid rgba(125, 211, 252, .1); }
.chat-row .av { width: 30px; height: 30px; border-radius: 9px; flex: none; display: flex; align-items: center; justify-content: center; color: #fff; font-size: 12px; font-weight: 800; }
.chat-row .txt { flex: 1; min-width: 0; }
.chat-row .nm { font-size: 12.5px; font-weight: 700; color: var(--text); }
.chat-row .ms { font-size: 11.5px; color: var(--muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.chat-row .badge-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--cyan); box-shadow: 0 0 10px var(--cyan); flex: none; }

.bubble { max-width: 84%; padding: 9px 13px; border-radius: 12px; font-size: 12.5px; }
.bubble.in { background: rgba(56, 189, 248, .14); border: 1px solid rgba(125, 211, 252, .22); color: var(--text-2); border-bottom-left-radius: 4px; }
.bubble.out { background: linear-gradient(120deg, rgba(125, 211, 252, .9), rgba(56, 189, 248, .9)); color: #04101f; font-weight: 600; margin-left: auto; border-bottom-right-radius: 4px; }
.bubble small { display: block; font-size: 10px; opacity: .75; margin-bottom: 2px; font-weight: 500; }

.screen-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 10px; padding: 4px; }
.screen-grid div {
  aspect-ratio: 1; border-radius: 12px; display: flex; align-items: center; justify-content: center;
  font-size: 13px; font-weight: 800; color: #fff;
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, .14);
}

.slider-nav { position: absolute; bottom: 20px; right: 26px; display: flex; align-items: center; gap: 14px; z-index: 5; }
.slider-dots { display: flex; gap: 7px; }
.slider-dots button {
  width: 26px; height: 3px; border-radius: 3px; border: none; cursor: pointer;
  background: rgba(255, 255, 255, .18); padding: 0; transition: .25s;
}
.slider-dots button.active { background: linear-gradient(90deg, var(--cyan), var(--blue)); box-shadow: 0 0 12px rgba(125, 211, 252, .7); width: 40px; }
.slider-arrows { display: flex; gap: 8px; }
.slider-arrows button {
  width: 34px; height: 34px; border-radius: 50%; cursor: pointer;
  background: rgba(255, 255, 255, .05); border: 1px solid var(--line-strong);
  color: var(--text-2); display: flex; align-items: center; justify-content: center; transition: .2s;
}
.slider-arrows button:hover { background: rgba(125, 211, 252, .16); color: #fff; border-color: var(--cyan); }
.slider-arrows svg { width: 15px; height: 15px; stroke: currentColor; fill: none; stroke-width: 2; }

/* ===================== 特色 ===================== */
.features-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.feature-card {
  padding: 32px 26px; border-radius: var(--radius); position: relative; overflow: hidden;
  background: var(--panel); border: 1px solid var(--line);
  backdrop-filter: blur(10px); transition: .28s;
}
.feature-card::after {
  content: ""; position: absolute; left: 0; top: 0; width: 100%; height: 1px;
  background: linear-gradient(90deg, transparent, rgba(125, 211, 252, .8), transparent);
  opacity: 0; transition: opacity .3s;
}
.feature-card:hover { transform: translateY(-5px); border-color: var(--line-strong); box-shadow: 0 22px 50px rgba(0, 0, 0, .45); }
.feature-card:hover::after { opacity: 1; }
.feature-ico {
  width: 52px; height: 52px; border-radius: 14px; margin-bottom: 20px;
  display: flex; align-items: center; justify-content: center;
  background: linear-gradient(140deg, rgba(125, 211, 252, .18), rgba(56, 189, 248, .12));
  border: 1px solid rgba(125, 211, 252, .3);
  box-shadow: inset 0 0 22px rgba(125, 211, 252, .12);
}
.feature-ico svg { width: 25px; height: 25px; stroke: var(--cyan); fill: none; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
.feature-card h3 { font-size: 18px; font-weight: 800; margin-bottom: 9px; }
.feature-card p { font-size: 13.5px; color: var(--muted); line-height: 1.75; }

/* ===================== 下载区 ===================== */
.dl-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.dl-card {
  position: relative; padding: 30px 24px; border-radius: var(--radius); text-align: center;
  background: linear-gradient(165deg, rgba(16, 34, 68, .8), rgba(7, 15, 32, .9));
  border: 1px solid var(--line); transition: .28s; overflow: hidden;
}
.dl-card::before {
  content: ""; position: absolute; inset: -1px; border-radius: inherit; padding: 1px;
  background: linear-gradient(140deg, rgba(125, 211, 252, .7), transparent 45%, rgba(56, 189, 248, .6));
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor; mask-composite: exclude; opacity: 0; transition: opacity .3s;
}
.dl-card:hover { transform: translateY(-6px); box-shadow: 0 26px 60px rgba(0, 0, 0, .55), 0 0 40px rgba(125, 211, 252, .18); }
.dl-card:hover::before { opacity: 1; }
.dl-ico { width: 58px; height: 58px; margin: 0 auto 16px; border-radius: 16px; display: flex; align-items: center; justify-content: center; background: rgba(56, 189, 248, .12); border: 1px solid var(--line-strong); }
.dl-ico svg { width: 30px; height: 30px; fill: var(--blue-soft); }
.dl-card h3 { font-size: 17px; font-weight: 800; margin-bottom: 6px; }
.dl-meta { font-size: 12px; color: var(--muted); margin-bottom: 18px; line-height: 1.8; }
.dl-meta b { color: var(--text-2); font-weight: 600; }

/* ===================== 价格 ===================== */
.pricing-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; align-items: stretch; }
.price-card {
  position: relative; padding: 38px 30px; border-radius: 20px; display: flex; flex-direction: column;
  background: var(--panel); border: 1px solid var(--line); backdrop-filter: blur(10px); transition: .28s;
}
.price-card:hover { transform: translateY(-6px); box-shadow: 0 28px 60px rgba(0, 0, 0, .5); }
.price-card.featured {
  border-color: rgba(125, 211, 252, .55);
  background: linear-gradient(170deg, rgba(24, 56, 108, .85), rgba(8, 18, 40, .9));
  box-shadow: 0 0 60px rgba(125, 211, 252, .18), inset 0 0 60px rgba(56, 189, 248, .08);
}
.price-badge {
  position: absolute; top: -13px; left: 50%; transform: translateX(-50%);
  padding: 5px 20px; border-radius: 999px; font-size: 11.5px; font-weight: 800; letter-spacing: 1.5px;
  color: #04101f; background: linear-gradient(120deg, var(--cyan), var(--blue));
  box-shadow: 0 8px 24px rgba(125, 211, 252, .4); white-space: nowrap;
}
.price-card h3 { font-size: 18px; font-weight: 800; color: var(--text); margin-bottom: 4px; }
.price-note { font-size: 12.5px; color: var(--muted); }
.price { font-size: 46px; font-weight: 800; margin: 16px 0 2px; letter-spacing: -1px; }
.price small { font-size: 14px; color: var(--muted); font-weight: 500; letter-spacing: 0; }
.price-card ul { list-style: none; margin: 24px 0 28px; flex: 1; display: grid; gap: 11px; }
.price-card li { font-size: 13.5px; color: var(--text-2); padding-left: 24px; position: relative; }
.price-card li::before {
  content: ""; position: absolute; left: 2px; top: 8px; width: 11px; height: 6px;
  border-left: 2px solid var(--cyan); border-bottom: 2px solid var(--cyan);
  transform: rotate(-45deg);
}

/* ===================== CTA ===================== */
.cta-band {
  position: relative; overflow: hidden; border-radius: 26px; padding: 62px 48px; text-align: center;
  background: linear-gradient(120deg, rgba(18, 44, 90, .95), rgba(10, 22, 48, .95));
  border: 1px solid var(--line-strong);
  box-shadow: 0 40px 90px rgba(0, 0, 0, .5), inset 0 0 80px rgba(56, 189, 248, .16);
}
.cta-band::before {
  content: ""; position: absolute; width: 520px; height: 520px; border-radius: 50%;
  left: 50%; top: -60%; transform: translateX(-50%);
  background: radial-gradient(circle, rgba(125, 211, 252, .22), transparent 65%);
}
.cta-band h2 { position: relative; font-size: 32px; font-weight: 800; margin-bottom: 12px; }
.cta-band p { position: relative; color: var(--text-2); margin-bottom: 28px; }

/* ===================== 页脚 ===================== */
.site-footer { border-top: 1px solid var(--line); margin-top: 80px; padding: 58px 0 0; background: rgba(3, 7, 16, .6); }
.footer-grid { display: grid; grid-template-columns: 1.55fr .85fr .85fr 1.15fr .95fr; gap: 34px; padding-bottom: 40px; }
.site-footer h4 { font-size: 14px; color: #fff; margin-bottom: 16px; letter-spacing: 1px; font-weight: 700; }
.site-footer ul { list-style: none; display: grid; gap: 10px; }
.site-footer li { font-size: 13.5px; color: var(--muted); }
.site-footer a { color: var(--muted); }
.site-footer a:hover { color: var(--cyan); }
.footer-brand p { font-size: 13.5px; color: var(--muted); margin-top: 14px; max-width: 320px; }
.footer-bottom {
  border-top: 1px solid var(--line); padding: 18px 0; font-size: 12.5px; color: #5f7396;
  display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap;
}

/* ===================== 内页 ===================== */
.page-content { max-width: 840px; margin: 56px auto; padding: 0 24px; }
.page-content h1 { font-size: 32px; margin-bottom: 18px; color: #fff; }
.page-content h2, .page-content h3 { margin: 26px 0 12px; color: #fff; }
.page-content p, .page-content li { color: var(--text-2); margin-bottom: 14px; }
.entry-meta { font-size: 13px; color: var(--muted); margin-bottom: 20px; }

/* ===================== 动效 ===================== */
.reveal { opacity: 0; transform: translateY(30px); transition: opacity .8s ease, transform .8s ease; }
.reveal.visible { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  .marquee-track, .orbit-ring, .orbit-node, .orbit-core, .hero-beam, .hero-badge i { animation: none !important; }
}

/* ===================== 响应式 ===================== */
@media (max-width: 1080px) {
  .hero h1 { font-size: 42px; }
  .features-grid, .pricing-grid { grid-template-columns: 1fr 1fr; }
  .dl-grid { grid-template-columns: 1fr 1fr; }
  .orbit-wrap { height: 400px; transform: scale(.9); }
}

@media (max-width: 900px) {
  .hero-inner, .slide { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .orbit-wrap { height: 380px; margin-top: 10px; }
  .main-navigation {
    display: none; position: absolute; top: 74px; left: 0; right: 0;
    background: rgba(6, 13, 30, .98); border-bottom: 1px solid var(--line-strong);
    padding: 12px 20px 18px;
  }
  .main-navigation.open { display: block; }
  .main-navigation ul { flex-direction: column; align-items: stretch; gap: 4px; }
  .nav-toggle { display: block; }
  .header-right .btn { display: none; }
  .section { padding: 66px 0; }
  .section-head h2 { font-size: 28px; }
  .hero { padding: 56px 0 60px; }
  .hero h1 { font-size: 34px; }
  .slide { padding: 32px 26px 60px; }
  .slider-nav { left: 26px; right: 26px; justify-content: space-between; }
}

@media (max-width: 620px) {
  .features-grid, .pricing-grid, .dl-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .hero-stats { gap: 22px; }
  .brand-sub { display: none; }
  .cta-band { padding: 42px 24px; }
  .cta-band h2 { font-size: 24px; }
}

/* ===================== 产品特色配图卡片 ===================== */
.feature-media {
  position: relative; margin: -32px -26px 20px; height: 176px; overflow: hidden;
  border-radius: var(--radius) var(--radius) 0 0;
}
.feature-media img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s ease; }
.feature-card:hover .feature-media img { transform: scale(1.06); }
.feature-media::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(180deg, transparent 55%, rgba(8, 30, 48, .92));
}
.feature-media .feature-ico {
  position: absolute; left: 20px; bottom: -22px; margin: 0; z-index: 2;
  width: 46px; height: 46px; border-radius: 12px;
  background: linear-gradient(140deg, #0f3a54, #0a2a40);
  border: 1px solid var(--line-strong); box-shadow: 0 8px 20px rgba(0, 0, 0, .5), 0 0 18px rgba(125, 211, 252, .25);
}
.feature-media .feature-ico svg { width: 22px; height: 22px; }
.feature-card { padding-top: 0; }
.feature-card .feature-body { padding: 34px 26px 32px; }
.feature-card h3 { margin-top: 0; }
.feature-card p { margin-top: 10px; }

/* ===================== 首页聊天大图版块 ===================== */
.chat-feature { display: grid; grid-template-columns: 1.15fr .85fr; gap: 44px; align-items: center; }
.chat-media { position: relative; border-radius: 22px; overflow: hidden; border: 1px solid var(--line-strong); box-shadow: 0 40px 90px rgba(0, 0, 0, .55), 0 0 60px rgba(56, 189, 248, .18); }
.chat-media img { width: 100%; display: block; }
.chat-media::after { content: ""; position: absolute; inset: 0; background: linear-gradient(160deg, rgba(125, 211, 252, .08), transparent 40%, rgba(56, 189, 248, .12)); pointer-events: none; }
.float-badge {
  position: absolute; z-index: 3; display: flex; align-items: center; gap: 8px;
  padding: 8px 14px; border-radius: 999px; font-size: 12.5px; font-weight: 700; color: #eaf4ff;
  background: rgba(8, 18, 40, .88); border: 1px solid var(--line-strong);
  box-shadow: 0 10px 30px rgba(0, 0, 0, .5); backdrop-filter: blur(8px);
  animation: badgeFloat 5s ease-in-out infinite;
}
.float-badge i { width: 7px; height: 7px; border-radius: 50%; background: var(--cyan); box-shadow: 0 0 10px var(--cyan); display: block; }
.float-badge.b1 { top: 9%; left: 6%; }
.float-badge.b2 { top: 46%; right: 7%; animation-delay: 1.4s; }
.float-badge.b3 { bottom: 10%; left: 12%; animation-delay: .8s; }
@keyframes badgeFloat { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-10px); } }
.chat-copy h3 { font-size: 26px; font-weight: 800; margin-bottom: 14px; }
.chat-copy > p { color: var(--muted); margin-bottom: 22px; }
.chat-copy ul { list-style: none; display: grid; gap: 13px; margin-bottom: 28px; }
.chat-copy li { position: relative; padding: 13px 16px 13px 46px; border-radius: 13px; font-size: 14px; color: var(--text-2); background: rgba(56, 189, 248, .07); border: 1px solid var(--line); }
.chat-copy li::before {
  content: ""; position: absolute; left: 16px; top: 50%; transform: translateY(-50%);
  width: 16px; height: 16px; border-radius: 50%;
  background: radial-gradient(circle at 35% 30%, var(--cyan), var(--blue));
  box-shadow: 0 0 12px rgba(125, 211, 252, .8);
}

/* ===================== 在线客服浮窗（右侧垂直居中） ===================== */
.float-rail {
  position: fixed; right: 20px; top: 50%; transform: translateY(-50%); z-index: 300;
  display: flex; flex-direction: column; gap: 12px; align-items: flex-end;
}
.float-rail::before {
  content: ""; position: absolute; right: 25px; top: -18px; bottom: -18px; width: 1px; z-index: -1;
  background: linear-gradient(180deg, transparent, rgba(125, 211, 252, .45), transparent);
}
.rail-btn {
  width: 50px; height: 50px; border-radius: 50%; border: 1px solid var(--line-strong);
  background: rgba(8, 28, 46, .92); color: var(--text-2); cursor: pointer;
  display: flex; align-items: center; justify-content: center; position: relative;
  transition: .25s; box-shadow: 0 10px 26px rgba(0, 0, 0, .45); backdrop-filter: blur(8px);
}
.rail-btn svg { width: 24px; height: 24px; fill: currentColor; }
.rail-btn:hover { transform: translateY(-2px) scale(1.06); color: #fff; }
.rail-btn.tg:hover { border-color: #229ed9; box-shadow: 0 12px 30px rgba(34, 158, 217, .45); color: #7cd4f5; }
.rail-btn.wx:hover { border-color: #07c160; box-shadow: 0 12px 30px rgba(7, 193, 96, .45); color: #6fe3a5; }
.rail-tip {
  position: absolute; right: 62px; top: 50%; transform: translateY(-50%);
  white-space: nowrap; font-size: 12.5px; font-weight: 600; color: #eaf4ff;
  background: rgba(8, 18, 40, .95); border: 1px solid var(--line-strong);
  padding: 6px 12px; border-radius: 9px; opacity: 0; pointer-events: none; transition: .2s;
}
.rail-btn:hover .rail-tip { opacity: 1; right: 60px; }

/* 回到顶部（独立，固定在右下角） */
.back-top-btn {
  position: fixed; right: 20px; bottom: 26px; z-index: 300;
  width: 46px; height: 46px; border-radius: 50%; cursor: pointer;
  border: 1px solid var(--line-strong); background: rgba(8, 28, 46, .92); color: var(--text-2);
  display: flex; align-items: center; justify-content: center;
  opacity: 0; pointer-events: none; transform: translateY(12px);
  transition: .25s; box-shadow: 0 10px 26px rgba(0, 0, 0, .45); backdrop-filter: blur(8px);
}
.back-top-btn.show { opacity: 1; pointer-events: auto; transform: none; }
.back-top-btn:hover { border-color: var(--cyan); color: var(--cyan); }
.back-top-btn svg { width: 22px; height: 22px; fill: currentColor; }

.cs-modal { position: fixed; inset: 0; z-index: 400; display: none; }
.cs-modal.open { display: block; }
.cs-backdrop { position: absolute; inset: 0; background: rgba(2, 10, 18, .78); backdrop-filter: blur(4px); }
.cs-panel {
  position: absolute; left: 50%; top: 50%; transform: translate(-50%, -50%);
  width: min(360px, calc(100vw - 40px)); text-align: center;
  background: linear-gradient(165deg, #0d3049, #082032);
  border: 1px solid var(--line-strong); border-radius: 22px; padding: 34px 28px 30px;
  box-shadow: 0 40px 100px rgba(0, 0, 0, .7), 0 0 60px rgba(56, 189, 248, .25);
  animation: dropIn .22s ease;
}
.cs-close {
  position: absolute; right: 14px; top: 14px; width: 30px; height: 30px; border-radius: 50%;
  background: rgba(255, 255, 255, .06); border: 1px solid var(--line); color: var(--text-2);
  cursor: pointer; font-size: 15px; line-height: 1;
}
.cs-close:hover { color: #fff; border-color: var(--cyan); }
.cs-panel h3 { font-size: 20px; font-weight: 800; margin-bottom: 6px; }
.cs-id { font-size: 13px; color: var(--cyan); margin-bottom: 4px; }
.cs-note { font-size: 12.5px; color: var(--muted); margin-top: 12px; }
.qr-box {
  width: 208px; height: 208px; margin: 18px auto 6px; border-radius: 14px; overflow: hidden;
  border: 1px solid var(--line-strong); background: #fff; position: relative;
  display: flex; align-items: center; justify-content: center;
}
.qr-box img { width: 100%; height: 100%; object-fit: cover; }
.qr-placeholder { text-align: center; padding: 14px; }
.qr-placeholder svg { width: 54px; height: 54px; margin: 0 auto 10px; fill: #12b7f5; }
.qr-placeholder span { display: block; font-size: 11.5px; color: #8aa5c8; line-height: 1.6; }

/* ===================== 特色详情页 ===================== */
.fp-hero { text-align: center; padding: 74px 0 20px; }
.fp-hero .kicker { margin-bottom: 14px; }
.fp-hero h1 { font-size: 40px; font-weight: 800; margin-bottom: 16px; }
.fp-hero p { max-width: 760px; margin: 0 auto; color: var(--muted); font-size: 16px; }
.fp-list { display: grid; gap: 56px; padding: 40px 0 20px; }
.fp-block { display: grid; grid-template-columns: 1fr 1fr; gap: 44px; align-items: center; }
.fp-block.flip .fp-media { order: 2; }
.fp-media { border-radius: 20px; overflow: hidden; border: 1px solid var(--line-strong); box-shadow: 0 30px 70px rgba(0, 0, 0, .5), 0 0 46px rgba(56, 189, 248, .15); position: relative; }
.fp-media img { width: 100%; display: block; transition: transform .5s ease; }
.fp-block:hover .fp-media img { transform: scale(1.04); }
.fp-media .fp-num {
  position: absolute; left: 16px; top: 16px; z-index: 2;
  font-size: 12px; letter-spacing: 2px; font-weight: 800; color: #04101f;
  background: linear-gradient(120deg, var(--cyan), var(--blue)); padding: 5px 13px; border-radius: 999px;
}
.fp-copy .num-tag { display: block; font-size: 12px; letter-spacing: 3px; color: var(--cyan); font-weight: 700; margin-bottom: 12px; }
.fp-copy h2 { font-size: 27px; font-weight: 800; margin-bottom: 14px; }
.fp-copy p { color: var(--text-2); font-size: 14.5px; margin-bottom: 12px; }
.faq-wrap { max-width: 780px; margin: 0 auto; display: grid; gap: 14px; }
.faq-item { border: 1px solid var(--line); border-radius: 14px; background: var(--panel); overflow: hidden; }
.faq-item summary {
  cursor: pointer; list-style: none; padding: 18px 22px; font-weight: 700; font-size: 15px;
  color: var(--text); display: flex; align-items: center; justify-content: space-between; gap: 12px;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after { content: "+"; color: var(--cyan); font-size: 19px; font-weight: 700; transition: .2s; }
.faq-item[open] summary::after { transform: rotate(45deg); }
.faq-item .faq-a { padding: 0 22px 18px; font-size: 14px; color: var(--muted); }

/* ===================== 海译通长文介绍 ===================== */
.article-feature { display: grid; grid-template-columns: 1.4fr .6fr; gap: 34px; align-items: start; }
.article-body {
  position: relative; overflow: hidden; padding: 40px 44px 36px;
  border: 1px solid var(--line-strong); border-radius: 20px;
  background: linear-gradient(165deg, rgba(14, 32, 64, .78), rgba(7, 15, 32, .66));
  box-shadow: 0 30px 70px rgba(0, 0, 0, .42);
}
.article-body::before {
  content: ""; position: absolute; left: 0; top: 0; width: 100%; height: 3px;
  background: linear-gradient(90deg, var(--cyan), var(--blue) 55%, transparent);
}
.article-body h3 { font-size: 21px; font-weight: 800; color: #fff; margin: 26px 0 12px; }
.article-body h3:first-of-type { margin-top: 0; }
.article-body p { font-size: 14.8px; line-height: 1.95; color: var(--text-2); margin-bottom: 14px; }
.article-body p.art-lead { font-size: 16px; color: #d9e8ff; }
.article-body strong { color: #fff; font-weight: 700; }
.article-body ul { list-style: none; display: grid; gap: 12px; margin: 8px 0 20px; }
.article-body ul li { position: relative; padding-left: 26px; font-size: 14.3px; color: var(--text-2); line-height: 1.8; }
.article-body ul li::before {
  content: ""; position: absolute; left: 7px; top: .62em; width: 8px; height: 8px; border-radius: 2px;
  transform: rotate(45deg); background: linear-gradient(135deg, var(--cyan), var(--blue));
  box-shadow: 0 0 10px rgba(125, 211, 252, .7);
}
.art-quote {
  margin: 22px 0 6px; padding: 16px 22px; border-left: 3px solid var(--cyan);
  background: rgba(125, 211, 252, .07); border-radius: 0 12px 12px 0;
  font-size: 14.5px; color: #d9eaff; line-height: 1.85;
}
.article-aside { display: grid; gap: 18px; position: sticky; top: 96px; }
.aside-card { border: 1px solid var(--line); border-radius: 18px; background: var(--panel); padding: 24px 22px 22px; }
.aside-card h4 { font-size: 14px; color: #fff; letter-spacing: 1px; margin-bottom: 14px; }
.kw-chips { display: flex; flex-wrap: wrap; gap: 8px; }
.kw-chips span {
  font-size: 12.5px; color: var(--cyan); border: 1px solid rgba(125, 211, 252, .3);
  background: rgba(125, 211, 252, .08); padding: 5px 11px; border-radius: 999px;
}
.step-list { list-style: none; display: grid; gap: 14px; counter-reset: st; }
.step-list li { position: relative; padding-left: 34px; font-size: 13.5px; color: var(--text-2); line-height: 1.7; counter-increment: st; }
.step-list li::before {
  content: counter(st); position: absolute; left: 0; top: -1px; width: 22px; height: 22px; border-radius: 50%;
  display: flex; align-items: center; justify-content: center; font-size: 11px; font-weight: 800; color: #04101f;
  background: linear-gradient(135deg, var(--cyan), var(--blue));
}
.aside-card .mini-link { display: inline-flex; align-items: center; gap: 6px; font-size: 13px; color: var(--blue-soft); margin-top: 14px; }
.aside-card .mini-link:hover { color: var(--cyan); }

/* ===================== 文章资讯卡片 ===================== */
.blog-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.blog-card {
  display: flex; flex-direction: column; position: relative; overflow: hidden;
  padding: 26px 24px 20px; border: 1px solid var(--line); border-radius: var(--radius);
  background: var(--panel); transition: .3s;
}
.blog-card::before {
  content: ""; position: absolute; left: 24px; right: 24px; top: 0; height: 2px; opacity: .7;
  background: linear-gradient(90deg, var(--cyan), transparent);
}
.blog-card:hover {
  transform: translateY(-5px); border-color: var(--line-strong);
  box-shadow: 0 24px 50px rgba(0, 0, 0, .5), 0 0 30px rgba(56, 189, 248, .16);
}
.blog-card .b-tag {
  align-self: flex-start; font-size: 11.5px; font-weight: 700; letter-spacing: 1px; color: var(--cyan);
  border: 1px solid rgba(125, 211, 252, .3); background: rgba(125, 211, 252, .06);
  padding: 3px 10px; border-radius: 6px; margin-bottom: 14px;
}
.blog-card h3 { font-size: 16.5px; line-height: 1.55; font-weight: 800; color: #fff; margin-bottom: 10px; }
.blog-card p { font-size: 13.5px; color: var(--muted); line-height: 1.8; flex: 1; margin-bottom: 18px; }
.blog-card .b-meta {
  display: flex; justify-content: space-between; align-items: center; gap: 10px;
  font-size: 12px; color: #5f7396; border-top: 1px solid var(--line); padding-top: 14px;
}
.blog-card .b-meta b { color: var(--blue-soft); font-weight: 600; }
.blog-more { text-align: center; margin-top: 32px; }

/* 页脚关键词区 */
.footer-keywords {
  border-top: 1px solid var(--line); padding: 18px 0 2px; font-size: 12.5px; color: #5f7396;
  display: flex; flex-wrap: wrap; gap: 8px 14px; align-items: center; line-height: 1.9;
}
.footer-keywords b { color: #8aa0c4; font-weight: 600; }
.footer-keywords a { color: #6f86ab; }
.footer-keywords a:hover { color: var(--cyan); }

/* ===================== 响应式补充 ===================== */
@media (max-width: 1100px) {
  .blog-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 900px) {
  .chat-feature, .fp-block { grid-template-columns: 1fr; gap: 26px; }
  .fp-block.flip .fp-media { order: 0; }
  .fp-hero h1 { font-size: 30px; }
  .article-feature { grid-template-columns: 1fr; gap: 22px; }
  .article-aside { position: static; grid-template-columns: 1fr 1fr; }
  .article-body { padding: 28px 22px 26px; }
  .blog-grid { grid-template-columns: 1fr; }
  .float-rail { right: 12px; gap: 10px; }
  .rail-btn { width: 44px; height: 44px; }
  .rail-btn svg { width: 21px; height: 21px; }
  .rail-tip { display: none; }
  .back-top-btn { right: 13px; bottom: 16px; width: 42px; height: 42px; }
}
@media (max-width: 640px) {
  .article-aside { grid-template-columns: 1fr; }
}

@media (prefers-reduced-motion: reduce) {
  .float-badge { animation: none !important; }
}

/* ===================== 应用图标图片（后台上传后覆盖字符） ===================== */
.orbit-node.has-img,
.mq-ico.has-img,
.app-ico.has-img { background: #fff !important; }
.orbit-node img,
.mq-ico img,
.app-ico img {
  width: 100%; height: 100%; display: block;
  object-fit: cover; border-radius: inherit;
}

/* ===================== 浅色模式（外观-自定义-配色方案 选「浅色天蓝」） ===================== */
body.shn-light {
  --bg0: #e8f5ff;
  --bg1: #d8eeff;
  --bg2: #c6e6ff;
  --panel: rgba(255, 255, 255, .8);
  --panel-2: rgba(255, 255, 255, .94);
  --line: rgba(2, 116, 175, .16);
  --line-strong: rgba(2, 116, 175, .32);
  --cyan: #0284c7;
  --blue: #0ea5e9;
  --blue-soft: #0369a1;
  --violet: #38bdf8;
  --text: #0a2440;
  --text-2: #2a4a6e;
  --muted: #5d7a99;
  --glow: 0 0 40px rgba(14, 165, 233, .22);
}
body.shn-light::before {
  background:
    radial-gradient(900px 600px at 12% -8%, rgba(125, 211, 252, .45), transparent 60%),
    radial-gradient(800px 520px at 88% 4%, rgba(56, 189, 248, .3), transparent 62%),
    radial-gradient(1000px 700px at 50% 110%, rgba(14, 165, 233, .22), transparent 60%),
    linear-gradient(180deg, var(--bg0) 0%, var(--bg1) 45%, var(--bg0) 100%);
}
body.shn-light::after {
  background-image:
    linear-gradient(rgba(2, 132, 199, .07) 1px, transparent 1px),
    linear-gradient(90deg, rgba(2, 132, 199, .07) 1px, transparent 1px);
}
body.shn-light .site-header { background: rgba(255, 255, 255, .82); box-shadow: 0 10px 30px rgba(2, 60, 100, .08); }
body.shn-light .lang-menu { background: rgba(255, 255, 255, .98); box-shadow: 0 22px 50px rgba(2, 60, 100, .18); }
body.shn-light .slider { background: linear-gradient(160deg, rgba(255, 255, 255, .92), rgba(224, 242, 255, .96)); box-shadow: 0 40px 90px rgba(2, 60, 100, .14), 0 0 70px rgba(56, 189, 248, .2); }
body.shn-light .dl-card { background: linear-gradient(165deg, rgba(255, 255, 255, .94), rgba(224, 242, 255, .9)); }
body.shn-light .price-card.featured { background: linear-gradient(170deg, rgba(255, 255, 255, .96), rgba(214, 238, 255, .95)); }
body.shn-light .cta-band { background: linear-gradient(120deg, #0284c7, #0ea5e9); border-color: transparent; }
body.shn-light .cta-band h2, body.shn-light .cta-band p { color: #fff; }
body.shn-light .site-footer { background: rgba(255, 255, 255, .6); }
body.shn-light .main-navigation { background: rgba(255, 255, 255, .98); }
body.shn-light .feature-media::after { background: linear-gradient(180deg, transparent 55%, rgba(255, 255, 255, .92)); }
body.shn-light .feature-media .feature-ico { background: linear-gradient(140deg, #e0f2fe, #bae6fd); }
body.shn-light .float-badge { background: rgba(255, 255, 255, .93); color: #0a2440; }
body.shn-light .float-badge i { background: var(--blue); box-shadow: 0 0 10px var(--blue); }
body.shn-light .rail-btn { background: rgba(255, 255, 255, .95); box-shadow: 0 10px 26px rgba(2, 60, 100, .18); }
body.shn-light .rail-btn.tg:hover { color: #0284c7; }
body.shn-light .rail-btn.wx:hover { color: #059669; }
body.shn-light .rail-tip { background: rgba(10, 36, 64, .95); color: #eaf6ff; }
body.shn-light .back-top-btn { background: rgba(255, 255, 255, .95); box-shadow: 0 10px 26px rgba(2, 60, 100, .18); }
body.shn-light .cs-backdrop { background: rgba(15, 40, 70, .45); }
body.shn-light .cs-panel { background: linear-gradient(165deg, #ffffff, #e6f4ff); }
body.shn-light .cs-close { background: rgba(2, 116, 175, .08); }
body.shn-light .qr-placeholder span { color: #5d7a99; }
body.shn-light .btn-primary { color: #fff !important; }
body.shn-light .brand-mark,
body.shn-light .fp-num,
body.shn-light .fp-media .fp-num,
body.shn-light .step-list li::before { color: #fff !important; }
body.shn-light .chat-media { box-shadow: 0 40px 90px rgba(2, 60, 100, .2), 0 0 60px rgba(56, 189, 248, .25); }
body.shn-light .fp-media { box-shadow: 0 30px 70px rgba(2, 60, 100, .18), 0 0 46px rgba(56, 189, 248, .2); }
body.shn-light .hero-badge { color: #075985; }
body.shn-light .orbit-core span { color: #0369a1; font-weight: 700; }
body.shn-light .hero-badge i { background: var(--blue); box-shadow: 0 0 10px var(--blue); }
body.shn-light .art-quote { background: rgba(2, 132, 199, .07); color: #1e3a5c; }
body.shn-light .aside-card h4 { color: #0a2440; }
body.shn-light .article-body {
  background: linear-gradient(165deg, rgba(255, 255, 255, .96), rgba(230, 244, 255, .92));
  box-shadow: 0 30px 70px rgba(2, 60, 100, .12);
}
body.shn-light .article-body h3 { color: #0a2440; }
body.shn-light .article-body p.art-lead { color: #1e3a5c; }
body.shn-light .blog-card h3 { color: #0a2440; }
body.shn-light .site-footer h4 { color: #0a2440; }
body.shn-light .site-footer a { color: #3d5c80; }
body.shn-light .site-footer .footer-about,
body.shn-light .site-footer li { color: #3d5c80; }
body.shn-light .footer-brand .brand-name { color: #0a2440; }
body.shn-light .footer-brand .brand-sub { color: #5d7a99; }
body.shn-light .footer-bottom { color: #5d7a99; }

/* ===================== 幻灯片内图标（后台上传后自动替换字符） ===================== */
.chat-row .av img {
  width: 100%; height: 100%; display: block;
  object-fit: cover; border-radius: inherit;
}
.chat-row .av.has-img { background: #fff !important; }
.screen-grid div img {
  width: 100%; height: 100%; display: block;
  object-fit: cover; border-radius: inherit;
}
.screen-grid div.has-img { background: #fff !important; }

/* ===================== 浅色模式对比度修复（第二轮） ===================== */
/* 整体小字加深 */
body.shn-light {
  --muted: #4a6a8e;
}
/* 头部品牌名（header 处的白字） */
body.shn-light .site-header .brand-name { color: #0a2440; }
body.shn-light .site-header .brand-name span { color: #0284c7; }
/* 导航 / 语言按钮 / 筛选标签 / 幻灯箭头：悬停白字改深蓝 */
body.shn-light .main-navigation a:hover { color: #0284c7; }
body.shn-light .lang-btn:hover { color: #0284c7; }
body.shn-light .lang-menu button:hover { color: #0284c7; }
body.shn-light .lang-menu button.active { color: #0369a1; }
body.shn-light .filter-tabs button:hover { color: #0284c7; }
body.shn-light .slider-arrows button:hover { color: #0284c7; }
/* 统计数字：白→蓝 渐变改为全蓝渐变 */
body.shn-light .hero-stats .num {
  background: linear-gradient(120deg, #0ea5e9, #075985);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
/* 内页 / 文章页标题 */
body.shn-light .page-content h1,
body.shn-light .page-content h2,
body.shn-light .page-content h3 { color: #0a2440; }
body.shn-light .page-content strong { color: #0a2440; }
/* 页脚热门关键词 */
body.shn-light .footer-keywords b { color: #33557c; }
body.shn-light .footer-keywords a { color: #3d5c80; }
/* 客服浮窗悬停白字 */
body.shn-light .rail-btn:hover { color: #0284c7; }
body.shn-light .back-top-btn:hover { color: #0284c7; }
/* 文章卡片日期行 */
body.shn-light .blog-card .b-meta { color: #4a6a8e; }
/* price 区小字 */
body.shn-light .price small,
body.shn-light .price-note,
body.shn-light .dl-meta { color: #4a6a8e; }