/* ===== 品牌 token（唯一真相源） ===== */
:root {
  --ink: #10141a;          /* 公司主色：C1 石墨银黑（整屏滚动 4 屏统一背景） */
  --accent: #b85f2c;       /* 强调色：暖橙 */
  --accent-soft: #d4793f;
  --bg: #faf8f5;           /* 浅色暖白背景 */
  --surface: #ffffff;      /* 卡片 */
  --text: #1a1a1f;
  --text-2: #6b6b73;       /* 次要文字 */
  --text-on-ink: #ffffff;
  --border: #00000014;
  --maxw: 1080px;          /* 内容列限宽 */
  --pad: 20px;             /* 屏幕左右边距 */
  --radius: 16px;
  --radius-sm: 10px;
  --gap: 16px;
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
          "Hiragino Sans GB", "Microsoft YaHei", Inter, system-ui, sans-serif;
}
/* ===== reset ===== */
* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body { font-family: var(--font); color: var(--text); background: var(--bg);
       line-height: 1.6; -webkit-font-smoothing: antialiased; }
img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
/* ===== 布局工具类 ===== */
.container { max-width: var(--maxw); margin: 0 auto; padding: 0 var(--pad); }
.section { padding: 72px 0; }
.section-tight { padding: 48px 0; }
.eyebrow { color: var(--accent); font-weight: 700; font-size: 13px;
           letter-spacing: .5px; text-transform: uppercase; }
h1,h2,h3 { letter-spacing: -.5px; line-height: 1.18; }
h1 { font-size: clamp(32px, 6vw, 56px); font-weight: 800; }
h2 { font-size: clamp(26px, 4vw, 38px); font-weight: 800; }
h3 { font-size: 19px; font-weight: 700; }
.muted { color: var(--text-2); }
/* ===== 按钮 ===== */
.btn { display: inline-flex; align-items: center; gap: 8px; min-height: 44px;
       padding: 0 22px; border-radius: var(--radius-sm); font-weight: 600;
       font-size: 15px; cursor: pointer; border: 1px solid transparent;
       transition: transform .12s ease, opacity .12s ease; }
.btn:active { transform: translateY(1px); }
.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { opacity: .92; }
.btn-ghost-on-ink { border-color: #ffffff3a; color: #fff; }
.btn-ghost-on-ink:hover { background: #ffffff14; }
/* ===== 卡片 ===== */
.card { background: var(--surface); border: 1px solid var(--border);
        border-radius: var(--radius); padding: 22px; }
/* ===== 深色区块 ===== */
.on-ink { background: var(--ink); color: var(--text-on-ink); }
/* ===== 顶部导航 ===== */
.site-nav { position: sticky; top: 0; z-index: 50; background: var(--ink);
            color: var(--text-on-ink); overflow: visible; }
.nav-inner { display: flex; align-items: center; gap: 20px; height: 84px; overflow: visible; }
.nav-logo { color: #fff; display: flex; align-items: center; gap: 12px; }
.nav-logo-text { font-size: 20px; font-weight: 700; letter-spacing: .01em; }
.nav-actions { margin-left: auto; display: flex; align-items: center; gap: 12px;
               position: relative; }
.lang-toggle { background: transparent; color: #fff; border: 1px solid #ffffff2e;
               min-height: 38px; padding: 0 12px; border-radius: 8px; cursor: pointer;
               font: inherit; display: inline-flex; align-items: center; gap: 6px; }
.lang-menu { position: absolute; top: 46px; right: 86px; background: #fff; color: var(--ink);
             border-radius: 10px; box-shadow: 0 8px 24px #0003; padding: 6px;
             min-width: 120px; z-index: 200;
             opacity: 0; visibility: hidden; pointer-events: none;
             transform: translateY(-4px);
             transition: opacity .15s, transform .15s, visibility .15s; }
.lang-menu.open { opacity: 1; visibility: visible; pointer-events: auto; transform: translateY(0); }
.lang-menu a { display: block; padding: 8px 12px; border-radius: 6px; font-size: 14px; }
.lang-menu a:hover { background: var(--bg); }

/* ===== Hero ===== */
.hero { position: relative; overflow: hidden; }
.hero-inner { padding: 96px 20px 104px; position: relative; }
.hero-wave { position: absolute; top: 70px; right: 0; width: 62%; height: 90px;
             opacity: .45; pointer-events: none; }
.hero h1 { max-width: 12ch; position: relative; }
.hero-sub { margin-top: 18px; font-size: 17px; color: #ffffffb0; max-width: 46ch; }
@media (min-width: 1160px) {
  /* 宽屏下 .container 居中留白很大，文案整体左移，避免视觉上贴在正中间 */
  .hero-inner { transform: translateX(-64px); }
}
/* ===== 公司定位 ===== */
/* 业务简介（公安备案要求公示的那一项）比原标语长、又比整段说明短，
   字号行宽取两者之间；38ch 下中文约 3 行、英文约 4 行 */
.intro-text { font-size: clamp(18px, 2.6vw, 24px); font-weight: 600; max-width: 38ch;
              margin-top: 12px; line-height: 1.55; }
/* ===== 旗舰产品 ===== */
.product-inner { display: grid; grid-template-columns: 1.2fr .8fr; gap: 40px;
                 align-items: center; }
.product-copy h2 { margin: 8px 0 14px; }
.product-shot { display: flex; justify-content: center; }
.phone { width: 220px; height: 440px; background: var(--ink); border-radius: 36px;
         padding: 10px; box-shadow: 0 20px 50px #0002; }
.phone-screen { height: 100%; border-radius: 28px;
                background: linear-gradient(160deg, var(--accent), #8a4420);
                color: #fff; display: flex; flex-direction: column;
                align-items: center; justify-content: center; gap: 10px; }
.phone-k { font-size: 13px; opacity: .85; }
.phone-v { font-size: 48px; font-weight: 800; } .phone-v small { font-size: 16px; }
.phone-screen svg { width: 120px; }
/* ===== 核心功能 ===== */
.features h2 { margin: 8px 0 28px; }
.feat-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--gap); }
.feat-ic { font-size: 26px; margin-bottom: 10px; }
.feat h3 { margin-bottom: 6px; }
@media (max-width: 960px) { .feat-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 560px) { .feat-grid { grid-template-columns: 1fr; } }
/* ===== 差异化亮点 ===== */
.highlights .hl-grid { display: grid; grid-template-columns: repeat(3, 1fr);
                       gap: 28px; margin-top: 22px; }
.highlights .hl { border-top: 2px solid var(--accent); padding-top: 14px; }
.highlights .hl h3 { margin-bottom: 6px; }
.highlights .hl p { color: #ffffffa6; }
/* ===== Coming Soon ===== */
.soon { background: var(--ink); color: #fff; }
.soon-inner { text-align: center; }
.soon h2 { margin: 10px 0 14px; }
.soon-text { color: #ffffffb0; max-width: 44ch; margin: 0 auto; }
.soon-contact { margin-top: 22px; font-size: 15px; color: #ffffffcc; }
.soon-mail { color: var(--accent-soft); font-weight: 600; }
.soon-mail:hover { text-decoration: underline; }
/* ===== 关于我们 ===== */
.about-text { font-size: clamp(18px, 2.6vw, 24px); font-weight: 600;
              max-width: 30ch; margin-top: 12px; line-height: 1.4; }
/* ===== 页脚 ===== */
.site-footer { padding: 48px 0; }
.footer-inner { display: flex; justify-content: space-between; gap: 28px; flex-wrap: wrap; }
.footer-rights { color: #ffffff8c; font-size: 13px; margin-top: 12px; }
/* 备案合规信息栏：用 width:100% 而不是 flex-basis:100% 把自己挤到下一整行——
   560px 以下 .footer-inner 会变成 column，那时 flex-basis 量的是纵轴，
   写 flex:0 0 100% 会撑出一个满高的空盒子 */
.footer-compliance { width: 100%; margin-top: 28px; padding-top: 20px;
                     border-top: 1px solid #ffffff1a;
                     font-size: 12px; line-height: 1.8; color: #ffffff8c; }
.footer-compliance a { color: inherit; text-decoration: none; }
.footer-compliance a:hover { color: var(--accent-soft); text-decoration: underline; }
.footer-compliance-row { display: flex; flex-wrap: wrap; gap: 2px 24px; }
/* ICP 号和公安备案号尽量同一行、单个号码内部绝不能被拆断（用户明确要求），
   所以 > * 恒定 flex-shrink:0 + white-space:nowrap；但极窄屏幕（≤560px，
   跟 .footer-inner 的断点保持一致）下两个号加起来可能比视口还宽，这时改成
   允许整组换行——两个号各自单独一行、完整可见，优先保证公示号码不被裁掉，
   而不是死守"同一行"逼出横向滚动条把号码藏起来 */
.footer-beian-group { display: inline-flex; flex-wrap: nowrap; gap: 24px; max-width: 100%; }
.footer-beian-group > * { flex-shrink: 0; white-space: nowrap; }
@media (max-width: 560px) {
  .footer-beian-group { flex-wrap: wrap; gap: 2px 24px; }
}
.footer-icp { color: #ffffff52; }
.footer-beian-icon { display: inline-block; vertical-align: -2px; margin-right: 4px; }
.footer-links { display: flex; flex-direction: column; gap: 10px; font-size: 14px; }
.footer-links a { color: #ffffffc4; } .footer-links a:hover { color: #fff; }
.footer-lang { color: #ffffff70; font-size: 13px; margin-top: 6px; }
@media (max-width: 560px) { .footer-inner { flex-direction: column; } }
/* ===== 产品矩阵卡片 ===== */
.products h2 { margin: 8px 0 32px; }
.product-cards { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 20px; }
.product-card {
  display: block;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px 28px;
  transition: box-shadow .15s, transform .15s;
  text-decoration: none;
  color: inherit;
}
.product-card:hover { box-shadow: 0 8px 28px #0001; transform: translateY(-2px); }
.product-card-logo {
  font-size: 26px;
  font-weight: 800;
  letter-spacing: -.5px;
  margin-bottom: 12px;
  color: var(--text);
}
.product-card-desc { margin-bottom: 20px; line-height: 1.6; }
.product-card-cta {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 14px;
  font-weight: 600;
  color: var(--accent);
}
.product-card-cta::after { content: " →"; }

/* ===== 法律页 =====
   与 Movira 法务页统一阅读节奏；背景、品牌色仍由各站自身 token 决定。 */
.legal { padding: 56px 20px 80px; max-width: 760px; }
.legal-back {
  display: inline-block; margin-bottom: 26px;
  color: var(--accent); font-weight: 600; font-size: 14px;
}
.legal h1 { font-size: 30px; letter-spacing: -.5px; margin-bottom: 12px; }
.legal-updated {
  color: var(--text-2); font-size: 13px; line-height: 1.7;
  padding-bottom: 22px; margin-bottom: 4px;
}
.legal > p, .legal-section p, .legal-section li {
  font-size: 15px; line-height: 1.75;
}
.legal > p { margin-bottom: 14px; }
.legal-section { margin: 0; }
.legal-section h2 {
  font-size: 20px; font-weight: 700; letter-spacing: 0;
  margin: 44px 0 14px; padding-top: 26px; border-top: 1px solid var(--border);
}
.legal-section h3 { font-size: 16px; margin: 26px 0 10px; }
.legal-section p { margin-bottom: 14px; }
.legal-section p:last-child { margin-bottom: 0; }
.legal-section ul, .legal-section ol { margin: 0 0 16px 22px; }
.legal-section li { margin-bottom: 8px; }
.legal-section li:last-child { margin-bottom: 0; }

/* ===== 响应式：≤720 ===== */
@media (max-width: 720px) {
  .section { padding: 52px 0; }
  .lang-menu { right: 0; }
  .hero-inner { padding: 64px 20px 72px; }
  .hero-wave { width: 90%; opacity: .35; }
  .product-inner { grid-template-columns: 1fr; gap: 28px; }
  .highlights .hl-grid { grid-template-columns: 1fr; gap: 20px; }
  .legal { padding: 32px 20px 56px; }
  .legal h1 { font-size: 25px; }
  .legal-section h2 { font-size: 18px; margin-top: 34px; }
}