/* 科懿官网 · 全局样式 */
:root {
  --blue: #0B5CD8;
  --blue-600: #0A48AC;
  --blue-900: #08326F;
  --red: #E23744;
  --red-dark: #C22A36;
  --ink: #0F172A;
  --ink-2: #475069;
  --ink-3: #7A8399;
  --line: #E6EBF4;
  --bg: #FFFFFF;
  --bg-soft: #F5F8FD;
  --bg-deep: #0A1B3C;
  --radius: 14px;
  --radius-lg: 20px;
  --shadow: 0 8px 28px rgba(15, 23, 42, .08);
  --shadow-lg: 0 18px 50px rgba(11, 92, 216, .16);
  --maxw: 1280px;
  --font: 'PingFang SC', 'Microsoft YaHei', 'Hiragino Sans GB', system-ui, -apple-system, 'Segoe UI', sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font);
  color: var(--ink);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  line-height: 1.7;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
h1, h2, h3, h4, p, ul { margin: 0; padding: 0; }
ul { list-style: none; }
button { font-family: inherit; cursor: pointer; }

.container { width: min(100% - 48px, var(--maxw)); margin-inline: auto; }
.section { padding: 84px 0; }
.section--soft { background: var(--bg-soft); }

/* ---------- 通用标题 ---------- */
.sec-head { text-align: center; margin-bottom: 46px; }
.sec-tag {
  display: inline-block; font-size: 13px; letter-spacing: 2px; color: var(--blue);
  background: rgba(11, 92, 216, .08); border: 1px solid rgba(11, 92, 216, .18);
  padding: 5px 14px; border-radius: 999px; margin-bottom: 16px;
}
.sec-title { font-size: 34px; line-height: 1.35; font-weight: 700; letter-spacing: 1px; }
.sec-title em { font-style: normal; color: var(--blue); }
.sec-sub { margin-top: 14px; color: var(--ink-2); font-size: 16px; max-width: 760px; margin-inline: auto; }
.sec-head::after,
.sec-title::after { content: none; }

/* ---------- 头部 ---------- */
.hd {
  position: sticky; top: 0; z-index: 60; background: rgba(255, 255, 255, .92);
  backdrop-filter: saturate(180%) blur(12px); border-bottom: 1px solid var(--line);
  transition: box-shadow .25s, background .25s;
}
.hd.is-stuck { box-shadow: 0 6px 24px rgba(15, 23, 42, .07); }
/* 头部内容区与页面主内容（Banner、各栏目）共用同一宽度，避免 Logo 贴住窗口左边缘。
   --hd-shift 是 Logo 在内容区基础上再向右的额外缩进：默认 0，即与下方栏目左边缘严格对齐；
   如需再右移（例如 2cm），把 0 改成 2cm 即可。 */
.hd__inner {
  display: flex; align-items: center; gap: 28px; height: 76px;
  width: min(100% - 48px, var(--maxw)); margin-inline: auto;
  padding-left: var(--hd-shift, 0);
}
.hd__logo { display: flex; align-items: center; flex: 0 0 auto; }
.hd__logo img { height: 44px; width: auto; }
.hd__logo .brand-fallback { font-size: 22px; font-weight: 800; color: var(--blue); letter-spacing: 2px; }
.hd__nav { display: flex; align-items: center; gap: 8px; margin-left: auto; }
.hd__nav a {
  position: relative; padding: 10px 16px; font-size: 16px; color: var(--ink-2);
  border-radius: 10px; transition: color .2s, background .2s; white-space: nowrap;
}
.hd__nav a:hover { color: var(--blue); background: rgba(11, 92, 216, .07); }
.hd__nav a.is-active { color: var(--blue); font-weight: 600; }
.hd__nav a.is-active::after {
  content: ''; position: absolute; left: 16px; right: 16px; bottom: 2px; height: 3px;
  background: linear-gradient(90deg, var(--blue), var(--red)); border-radius: 3px;
}
.hd__acts { display: flex; align-items: center; gap: 12px; margin-left: 8px; }
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 6px;
  height: 40px; padding: 0 20px; border-radius: 10px; font-size: 15px; font-weight: 500;
  border: 1px solid transparent; transition: all .2s; white-space: nowrap;
}
.btn--primary {
  background: linear-gradient(135deg, var(--blue), #2F7BF0); color: #fff;
  box-shadow: 0 6px 18px rgba(11, 92, 216, .28);
}
.btn--primary:hover { transform: translateY(-1px); box-shadow: 0 12px 26px rgba(11, 92, 216, .34); }
.btn--ghost { border-color: var(--line); color: var(--ink); background: #fff; }
.btn--ghost:hover { border-color: var(--blue); color: var(--blue); }
.btn--red { background: linear-gradient(135deg, var(--red), #F0555F); color: #fff; }
.btn--lg { height: 48px; padding: 0 28px; font-size: 16px; }
.hd__burger { display: none; margin-left: auto; width: 42px; height: 42px; border: 1px solid var(--line); background: #fff; border-radius: 10px; }
.hd__burger span { display: block; width: 18px; height: 2px; background: var(--ink); margin: 3px auto; border-radius: 2px; }

/* ---------- Banner 轮播 ---------- */
.slider { position: relative; overflow: hidden; background: var(--bg-deep); }
.slider__track { display: flex; transition: transform .6s cubic-bezier(.4, 0, .2, 1); }
.slide { position: relative; flex: 0 0 100%; height: 560px; color: #fff; overflow: hidden; }
.slide__bg { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.slide__body {
  position: relative; height: 100%; display: flex; flex-direction: column; justify-content: center;
  width: min(100% - 48px, var(--maxw)); margin-inline: auto; max-width: 720px;
}
.slide__tag {
  align-self: flex-start; font-size: 13px; letter-spacing: 2px; padding: 6px 14px; border-radius: 999px;
  background: rgba(226, 55, 68, .18); border: 1px solid rgba(226, 55, 68, .5); color: #FFD9DC; margin-bottom: 18px;
}
.slide__title { font-size: 52px; line-height: 1.22; font-weight: 800; letter-spacing: 1px; text-shadow: 0 4px 30px rgba(0, 0, 0, .25); }
.slide__sub { margin-top: 18px; font-size: 19px; color: rgba(255, 255, 255, .86); }
.slide__cta { margin-top: 34px; align-self: flex-start; }
.slider__arrow {
  position: absolute; top: 50%; transform: translateY(-50%); width: 52px; height: 52px; border-radius: 50%;
  background: rgba(255, 255, 255, .16); border: 1px solid rgba(255, 255, 255, .3); color: #fff;
  display: grid; place-items: center; backdrop-filter: blur(6px); transition: all .2s; z-index: 3;
}
.slider__arrow:hover { background: rgba(255, 255, 255, .32); }
.slider__arrow--prev { left: 26px; }
.slider__arrow--next { right: 26px; }
.slider__dots {
  position: absolute; left: 50%; transform: translateX(-50%); bottom: 26px; z-index: 3;
  display: flex; align-items: center; gap: 10px; padding: 10px 16px; border-radius: 999px;
  background: rgba(10, 27, 60, .28); backdrop-filter: blur(6px);
}
.slider__dot {
  width: 38px; height: 4px; border-radius: 4px; border: 0; padding: 0;
  background: rgba(255, 255, 255, .42); transition: all .3s;
}
.slider__dot:hover { background: rgba(255, 255, 255, .7); }
.slider__dot.is-active { width: 62px; background: linear-gradient(90deg, #fff, #9CC4FF); box-shadow: 0 0 12px rgba(255, 255, 255, .5); }

/* ---------- 为您赋能 ---------- */
.grid-5 { display: grid; grid-template-columns: repeat(5, 1fr); gap: 20px; }
.pcard {
  position: relative; overflow: hidden; background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 26px 22px 24px; transition: transform .25s, box-shadow .25s, border-color .25s; min-height: 208px;
  display: flex; flex-direction: column;
}
.pcard::before {
  content: ''; position: absolute; left: 0; top: 0; width: 100%; height: 3px;
  background: linear-gradient(90deg, var(--blue), var(--red)); transform: scaleX(0); transform-origin: left; transition: transform .3s;
}
.pcard:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); border-color: rgba(11, 92, 216, .25); }
.pcard:hover::before { transform: scaleX(1); }
.pcard__icon {
  width: 46px; height: 46px; border-radius: 12px; display: grid; place-items: center; margin-bottom: 16px;
  background: linear-gradient(135deg, rgba(11, 92, 216, .1), rgba(226, 55, 68, .08)); color: var(--blue);
}
.pcard__icon svg { width: 24px; height: 24px; }
.pcard__title { font-size: 18px; font-weight: 700; letter-spacing: .5px; }
.pcard__desc { margin-top: 10px; font-size: 14px; color: var(--ink-3); line-height: 1.75; flex: 1; }
.pcard__more { margin-top: 14px; font-size: 14px; color: var(--blue); font-weight: 600; opacity: 0; transform: translateX(-4px); transition: all .25s; }
.pcard:hover .pcard__more { opacity: 1; transform: none; }
.pcard--more {
  background: linear-gradient(135deg, var(--blue-900), var(--blue)); border: 0; color: #fff; justify-content: center; align-items: center; text-align: center;
}
.pcard--more .pcard__icon { background: rgba(255, 255, 255, .16); color: #fff; }
.pcard--more .pcard__title { font-size: 22px; }
.pcard--more::after {
  content: ''; position: absolute; right: -40px; bottom: -40px; width: 140px; height: 140px; border-radius: 50%;
  background: radial-gradient(circle, rgba(226, 55, 68, .55), transparent 70%);
  pointer-events: none;
}
.pcard--more:hover { box-shadow: 0 20px 46px rgba(11, 92, 216, .4); }

/* ---------- 为什么选择 ---------- */
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; }
.rcard {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius-lg); padding: 30px 28px;
  display: flex; gap: 18px; transition: box-shadow .25s, transform .25s, border-color .25s;
}
.rcard:hover { box-shadow: var(--shadow); transform: translateY(-4px); border-color: rgba(11, 92, 216, .22); }
.rcard__icon {
  flex: 0 0 50px; width: 50px; height: 50px; border-radius: 14px; display: grid; place-items: center;
  background: linear-gradient(135deg, rgba(11, 92, 216, .12), rgba(226, 55, 68, .1)); color: var(--blue);
}
.rcard__icon svg { width: 26px; height: 26px; }
.rcard__title { font-size: 19px; font-weight: 700; }
.rcard__desc { margin-top: 8px; font-size: 14px; color: var(--ink-3); line-height: 1.8; }

/* ---------- 客户 ---------- */
.grid-6 { display: grid; grid-template-columns: repeat(6, 1fr); gap: 20px; }
/* 首页客户行：6 个图标 + 1 个「更多」，共 7 格同行展示 */
.grid-7 { display: grid; grid-template-columns: repeat(7, 1fr); gap: 16px; }
.grid-7 .ccard, .grid-7 .more-cell { height: 96px; }
.grid-7 .ccard__badge { width: 40px; height: 40px; font-size: 15px; }
.grid-7 .ccard__name { font-size: 11.5px; }
.ccard {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius); height: 108px;
  display: grid; place-items: center; padding: 14px; transition: all .25s; position: relative; overflow: hidden;
}
.ccard:hover { transform: translateY(-4px); box-shadow: var(--shadow); border-color: rgba(11, 92, 216, .28); }
.ccard img { max-height: 40px; width: auto; object-fit: contain; filter: grayscale(1); opacity: .75; transition: all .25s; }
.ccard:hover img { filter: none; opacity: 1; }
.ccard__ph { display: grid; place-items: center; gap: 4px; text-align: center; }
.ccard__badge {
  width: 46px; height: 46px; border-radius: 12px; display: grid; place-items: center; color: #fff;
  font-weight: 700; font-size: 17px; letter-spacing: 1px; filter: grayscale(1); opacity: .7; transition: all .25s;
}
.ccard:hover .ccard__badge { filter: none; opacity: 1; }
.ccard__name {
  font-size: 12px; color: var(--ink-3); max-width: 100%; overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}
.more-cell {
  display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 6px;
  border-radius: var(--radius); border: 1px dashed rgba(11, 92, 216, .45); background: rgba(11, 92, 216, .04);
  color: var(--blue); font-weight: 600; height: 108px; transition: all .25s;
}
.more-cell:hover { background: var(--blue); color: #fff; border-style: solid; }
.more-cell svg { width: 20px; height: 20px; }

/* ---------- 二级页 Hero ---------- */
.phero {
  position: relative; padding: 92px 0 78px; color: #fff; overflow: hidden;
  background: linear-gradient(135deg, #071A3C, #0B48AC 55%, #1260C8);
}
.phero::before {
  content: ''; position: absolute; inset: 0;
  background-image: linear-gradient(rgba(255, 255, 255, .05) 1px, transparent 1px), linear-gradient(90deg, rgba(255, 255, 255, .05) 1px, transparent 1px);
  background-size: 46px 46px; mask-image: radial-gradient(ellipse at 30% 40%, #000 0%, transparent 72%);
  pointer-events: none;
}
.phero::after {
  content: ''; position: absolute; right: -120px; top: -120px; width: 420px; height: 420px; border-radius: 50%;
  background: radial-gradient(circle, rgba(226, 55, 68, .35), transparent 65%);
  pointer-events: none;
}
.phero__body { position: relative; }
.phero__tag {
  display: inline-block; font-size: 13px; letter-spacing: 2px; color: #FFE1E3; background: rgba(226, 55, 68, .22);
  border: 1px solid rgba(226, 55, 68, .45); padding: 5px 14px; border-radius: 999px;
}
.phero__title { margin-top: 16px; font-size: 46px; font-weight: 800; letter-spacing: 1px; }
.phero__sub { margin-top: 14px; font-size: 18px; color: rgba(255, 255, 255, .85); max-width: 720px; }
.crumb { position: relative; font-size: 14px; color: rgba(255, 255, 255, .7); margin-bottom: 14px; }
.crumb a:hover { color: #fff; }

/* ---------- 通用卡片 / 列表 ---------- */
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; }
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 22px; }
.card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 26px 24px;
  transition: transform .25s, box-shadow .25s, border-color .25s; height: 100%;
}
.card:hover { transform: translateY(-5px); box-shadow: var(--shadow); border-color: rgba(11, 92, 216, .25); }
.card h4 { font-size: 18px; font-weight: 700; }
.card p { margin-top: 10px; font-size: 14.5px; color: var(--ink-3); line-height: 1.8; }
.card__num {
  width: 40px; height: 40px; border-radius: 12px; display: grid; place-items: center; margin-bottom: 16px;
  background: var(--blue); color: #fff; font-weight: 700; font-size: 16px;
}
.stat-strip { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.stat {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 26px 20px; text-align: center;
}
.stat__num { font-size: 34px; font-weight: 800; color: var(--blue); letter-spacing: 1px; }
.stat__label { margin-top: 6px; font-size: 14px; color: var(--ink-3); }
.split { display: grid; grid-template-columns: 1.1fr 1fr; gap: 48px; align-items: center; }
.prose p { color: var(--ink-2); font-size: 16px; line-height: 1.95; }
.prose p + p { margin-top: 14px; }
.timeline { position: relative; padding-left: 26px; }
.timeline::before { content: ''; position: absolute; left: 6px; top: 6px; bottom: 6px; width: 2px; background: linear-gradient(180deg, var(--blue), var(--red)); border-radius: 2px; }
.tl-item { position: relative; padding: 0 0 26px 8px; }
.tl-item::before {
  content: ''; position: absolute; left: -26px; top: 8px; width: 14px; height: 14px; border-radius: 50%;
  background: #fff; border: 3px solid var(--blue);
}
.tl-year { font-size: 15px; font-weight: 800; color: var(--red); letter-spacing: 1px; }
.tl-title { font-size: 17px; font-weight: 700; margin-top: 2px; }
.tl-desc { font-size: 14.5px; color: var(--ink-3); margin-top: 4px; }
.tag-list { display: flex; flex-wrap: wrap; gap: 12px; }
.tag {
  background: #fff; border: 1px solid var(--line); border-radius: 999px; padding: 8px 16px; font-size: 14px; color: var(--ink-2);
}
.tag::before { content: '✦ '; color: var(--red); }
.job {
  display: grid; grid-template-columns: 1fr auto; gap: 16px; align-items: center;
  border: 1px solid var(--line); border-radius: var(--radius); padding: 20px 24px; background: #fff; transition: all .22s;
}
.job:hover { border-color: rgba(11, 92, 216, .3); box-shadow: var(--shadow); transform: translateX(3px); }
.job__title { font-size: 17px; font-weight: 700; }
.job__meta { margin-top: 4px; font-size: 13.5px; color: var(--ink-3); }
.job__desc { margin-top: 8px; font-size: 14px; color: var(--ink-2); grid-column: 1 / -1; }
.job__type { font-size: 13px; color: var(--blue); background: rgba(11, 92, 216, .08); padding: 4px 12px; border-radius: 999px; white-space: nowrap; }
.case {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius-lg); padding: 30px; display: flex; flex-direction: column; gap: 14px;
  transition: all .25s;
}
.case:hover { transform: translateY(-5px); box-shadow: var(--shadow-lg); border-color: rgba(11, 92, 216, .25); }
.case__result { font-size: 15px; color: var(--red); font-weight: 600; }
.case__quote { font-size: 15px; color: var(--ink-2); border-left: 3px solid var(--blue); padding-left: 14px; line-height: 1.9; }
.case__foot { margin-top: auto; padding-top: 12px; border-top: 1px dashed var(--line); font-size: 13px; color: var(--ink-3); }

/* ---------- 表单 ---------- */
.form-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px; }
.field span { display: block; font-size: 14px; color: var(--ink-2); margin-bottom: 8px; }
.field input, .field select, .field textarea {
  width: 100%; padding: 12px 14px; border: 1px solid var(--line); border-radius: 10px; font-family: inherit; font-size: 15px;
  background: #fff; transition: border-color .2s, box-shadow .2s; color: var(--ink);
}
.field input:focus, .field textarea:focus, .field select:focus {
  outline: none; border-color: var(--blue); box-shadow: 0 0 0 3px rgba(11, 92, 216, .12);
}
.field textarea { resize: vertical; min-height: 96px; }
.field--full { grid-column: 1 / -1; }

/* ---------- CTA 条 ---------- */
.cta-bar {
  background: linear-gradient(120deg, var(--blue-900), var(--blue) 60%, #2F7BF0);
  border-radius: var(--radius-lg); padding: 46px 48px; color: #fff; position: relative; overflow: hidden;
  display: flex; align-items: center; justify-content: space-between; gap: 30px; flex-wrap: wrap;
}
.cta-bar::after {
  content: ''; position: absolute; right: -60px; bottom: -80px; width: 260px; height: 260px; border-radius: 50%;
  background: radial-gradient(circle, rgba(226, 55, 68, .4), transparent 70%);
  pointer-events: none; /* 纯装饰光晕：不参与命中测试，避免遮挡右侧「预约演示」按钮的点击 */
}
.cta-bar h3 { font-size: 28px; font-weight: 800; position: relative; }
.cta-bar p { margin-top: 8px; color: rgba(255, 255, 255, .85); position: relative; }
/* z-index:1 保证按钮绘制在装饰光晕之上 */
.cta-bar .btn { position: relative; z-index: 1; background: #fff; color: var(--blue); }

/* ---------- 页脚 ---------- */
.ft { background: #08142C; color: rgba(255, 255, 255, .72); }
/* 页脚外层：以窗口左右边框为基准留余量，不与上方栏目对齐 */
.ft__inner { width: 100%; max-width: 1760px; margin-inline: auto; padding-inline: clamp(28px, 4.5vw, 80px); }
/* 默认：左右两栏等宽 → 中间「联系我们」整块正好落在页脚中线上 */
.ft__main { display: grid; grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr); gap: 48px; padding: 56px 0 34px; }
/* 回退：空间不足以让导航单行时（JS 检测后加此类），放弃居中，沿用原三栏比例 */
.ft__main.ft--tight { grid-template-columns: minmax(0, 1.9fr) minmax(0, .75fr) auto; }
.ft__nav { display: flex; gap: 26px; flex-wrap: wrap; margin-top: 18px; }
.ft__nav a { font-size: 15px; color: rgba(255, 255, 255, .82); }
.ft__nav a:hover { color: #fff; }
.ft__title { font-size: 15px; color: #fff; font-weight: 600; margin-bottom: 14px; }
.ft__links { display: flex; flex-wrap: wrap; gap: 10px 22px; }
.ft__links a { font-size: 14px; color: rgba(255, 255, 255, .68); }
.ft__links a:hover { color: #9CC4FF; }
.ft__logo { display: inline-flex; align-items: center; cursor: pointer; text-decoration: none; transition: opacity .2s; }
.ft__logo:hover { opacity: .88; }
.ft__logo img {
  height: 40px; width: auto; background: #fff; border-radius: 10px; padding: 7px 12px;
  box-shadow: 0 4px 14px rgba(0, 0, 0, .18);
}
.ft__logo-fb { font-size: 22px; font-weight: 800; color: #fff; letter-spacing: 2px; }
/* 「联系我们」整块左右居中，块内文本仍左对齐 */
.ft__col--contact { justify-self: center; }
.ft__qr { justify-self: end; }
.ft__contact { text-align: left; }
.ft__nav a[data-agree] { cursor: pointer; }
.ft__qr { display: flex; align-items: center; gap: 16px; }
.ft__qr img { width: 108px; height: 108px; background: #fff; border-radius: 12px; padding: 6px; }
.ft__bottom {
  border-top: 1px solid rgba(255, 255, 255, .1); padding: 20px 0 26px; font-size: 13.5px; color: rgba(255, 255, 255, .55);
  display: flex; flex-direction: column; gap: 6px; align-items: center; text-align: center;
}
.ft__bottom a:hover { color: #9CC4FF; }
.ft__lic { display: flex; gap: 18px; flex-wrap: wrap; justify-content: center; }

/* ---------- 协议阅读窗口（服务协议 / 隐私保护政策） ---------- */
.agm__meta { font-size: 13px; color: var(--ink-3); margin-bottom: 12px; }
.agm__body {
  max-height: min(54vh, 480px); overflow-y: auto; padding-right: 10px;
  font-size: 14.5px; line-height: 1.95; color: var(--ink-2); white-space: pre-wrap;
}
.agm__body.agm__empty { color: var(--ink-3); font-size: 14px; }
.agm__file {
  display: flex; align-items: center; gap: 10px; margin-top: 18px; padding: 12px 16px;
  border: 1px solid var(--line); border-radius: 12px; background: var(--bg-soft);
  font-size: 14px; color: var(--ink); text-decoration: none;
}
.agm__file:hover { border-color: var(--blue); background: rgba(11, 92, 216, .06); }
.agm__file svg { width: 20px; height: 20px; color: var(--blue); flex: 0 0 auto; }
.agm__file i { margin-left: auto; font-style: normal; font-size: 13px; color: var(--blue); }

/* ---------- 右侧悬浮工具条 ---------- */
.float {
  position: fixed; right: 18px; top: 50%; transform: translateY(-50%); z-index: 70;
  display: flex; flex-direction: column; gap: 10px;
}
.float__btn {
  position: relative; width: 62px; padding: 12px 0 9px; border-radius: 14px; border: 1px solid var(--line);
  background: #fff; color: var(--ink-2); display: grid; place-items: center; gap: 4px;
  box-shadow: 0 8px 24px rgba(15, 23, 42, .1); transition: all .22s;
}
.float__btn svg { width: 22px; height: 22px; }
.float__btn span { font-size: 11.5px; letter-spacing: .5px; writing-mode: horizontal-tb; }
.float__btn:hover { color: #fff; background: linear-gradient(135deg, var(--blue), #2F7BF0); border-color: transparent; transform: translateX(-3px); }
.float__btn--red:hover { background: linear-gradient(135deg, var(--red), #F0555F); }
.float__badge {
  position: absolute; top: -6px; right: -6px; min-width: 18px; height: 18px; border-radius: 999px; background: var(--red);
  color: #fff; font-size: 11px; display: grid; place-items: center; padding: 0 5px;
}

/* ---------- 弹窗 / 抽屉 ---------- */
.mask {
  position: fixed; inset: 0; background: rgba(8, 20, 44, .55); backdrop-filter: blur(3px);
  z-index: 90; display: none; align-items: center; justify-content: center; padding: 24px;
}
.mask.is-open { display: flex; }
.modal {
  width: min(100%, 560px); background: #fff; border-radius: var(--radius-lg); padding: 30px; max-height: 90vh; overflow: auto;
  box-shadow: 0 30px 80px rgba(0, 0, 0, .3); animation: pop .25s ease;
}
@keyframes pop { from { opacity: 0; transform: translateY(16px) scale(.98); } to { opacity: 1; transform: none; } }
.modal__head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 20px; }
.modal__head h3 { font-size: 22px; font-weight: 800; }
.modal__close { width: 34px; height: 34px; border-radius: 10px; border: 1px solid var(--line); background: #fff; font-size: 18px; color: var(--ink-3); }
.modal__close:hover { background: var(--bg-soft); color: var(--ink); }
.drawer {
  position: fixed; right: 0; top: 0; height: 100%; width: min(100%, 400px); background: #fff; z-index: 95;
  box-shadow: -16px 0 50px rgba(8, 20, 44, .18); transform: translateX(102%); transition: transform .3s cubic-bezier(.4, 0, .2, 1);
  display: flex; flex-direction: column;
}
.drawer.is-open { transform: none; }
.drawer__head { padding: 22px 24px; border-bottom: 1px solid var(--line); display: flex; align-items: center; gap: 12px; }
.drawer__body { flex: 1; overflow: auto; padding: 20px 24px; background: var(--bg-soft); }
.chat-bubble { max-width: 82%; padding: 12px 16px; border-radius: 14px; font-size: 14.5px; line-height: 1.75; margin-bottom: 14px; }
.chat-bubble--bot { background: #fff; border: 1px solid var(--line); border-top-left-radius: 4px; color: var(--ink-2); }
.chat-bubble--me { background: var(--blue); color: #fff; margin-left: auto; border-top-right-radius: 4px; }
.quick-item { display: block; width: 100%; text-align: left; padding: 10px 14px; border: 1px solid var(--line); background: #fff; border-radius: 10px; margin-bottom: 8px; font-size: 14px; color: var(--ink-2); }
.quick-item:hover { border-color: var(--blue); color: var(--blue); }
.drawer__foot { padding: 16px 24px; border-top: 1px solid var(--line); display: flex; gap: 10px; }
.drawer__foot input { flex: 1; padding: 11px 14px; border: 1px solid var(--line); border-radius: 10px; font-family: inherit; }
.drawer__foot input:focus { outline: none; border-color: var(--blue); }

/* ---------- 产品详情页 ---------- */
.pd-metrics { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; margin-top: -50px; position: relative; z-index: 2; }
.pd-block + .pd-block { margin-top: 0; }
.feature-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 22px; }
.faq details { border: 1px solid var(--line); border-radius: var(--radius); padding: 16px 20px; background: #fff; }
.faq details + details { margin-top: 12px; }
.faq summary { cursor: pointer; font-weight: 600; font-size: 16px; list-style: none; display: flex; justify-content: space-between; align-items: center; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: '+'; color: var(--blue); font-size: 20px; }
.faq details[open] summary::after { content: '−'; }
.faq details p { margin-top: 12px; color: var(--ink-2); font-size: 14.5px; line-height: 1.85; }
.breadcrumb { font-size: 14px; color: var(--ink-3); }
.breadcrumb a:hover { color: var(--blue); }

/* ---------- 入场动画 ---------- */
.reveal { opacity: 0; transform: translateY(22px); transition: opacity .6s ease, transform .6s ease; }
.reveal.is-in { opacity: 1; transform: none; }

/* ---------- 后台 ---------- */
.admin-body { background: var(--bg-soft); }
.login-wrap { min-height: 100vh; display: grid; place-items: center; padding: 24px; }
.login-card { width: min(100%, 400px); background: #fff; border-radius: var(--radius-lg); padding: 34px; box-shadow: var(--shadow); }
.login-card h2 { font-size: 26px; font-weight: 800; text-align: center; }
.login-card p { text-align: center; color: var(--ink-3); font-size: 14px; margin: 8px 0 24px; }
.ad-top { background: #08142C; color: #fff; }
.ad-top__inner { display: flex; align-items: center; gap: 20px; height: 62px; }
.ad-top strong { font-size: 18px; letter-spacing: 1px; }
.ad-top .sp { margin-left: auto; display: flex; align-items: center; gap: 12px; font-size: 14px; color: rgba(255, 255, 255, .75); }
.ad-top .btn { height: 34px; padding: 0 16px; font-size: 14px; }
.ad-wrap { display: grid; grid-template-columns: 210px 1fr; gap: 24px; padding: 24px 0 60px; align-items: start; }
.ad-side { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 10px; position: sticky; top: 80px; }
.ad-side button {
  display: flex; align-items: center; gap: 10px; width: 100%; padding: 11px 14px; border: 0; background: transparent;
  border-radius: 10px; font-size: 14.5px; color: var(--ink-2); text-align: left;
}
.ad-side button:hover { background: var(--bg-soft); color: var(--ink); }
.ad-side button.is-active { background: rgba(11, 92, 216, .1); color: var(--blue); font-weight: 600; }
.ad-main { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 26px; min-height: 420px; }
.ad-h { display: flex; align-items: center; justify-content: space-between; margin-bottom: 20px; flex-wrap: wrap; gap: 12px; }
.ad-h h3 { font-size: 20px; font-weight: 700; }
.ad-h .acts { display: flex; gap: 10px; }
.ad-row {
  border: 1px solid var(--line); border-radius: 12px; padding: 16px; margin-bottom: 14px; background: #FCFDFF;
}
.ad-row__h { display: flex; align-items: center; gap: 10px; margin-bottom: 12px; }
.ad-row__h b { font-size: 15px; }
.ad-row__h .sp2 { margin-left: auto; display: flex; gap: 8px; }
.mini { height: 30px; padding: 0 12px; font-size: 13px; border-radius: 8px; border: 1px solid var(--line); background: #fff; color: var(--ink-2); }
.mini:hover { border-color: var(--blue); color: var(--blue); }
.mini--danger:hover { border-color: var(--red); color: var(--red); }
.ad-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px; }
.ad-grid--3 { grid-template-columns: repeat(3, 1fr); }
.ad-field { display: flex; flex-direction: column; gap: 6px; }
.ad-field label { font-size: 13px; color: var(--ink-2); font-weight: 500; }
.ad-field input, .ad-field textarea, .ad-field select {
  padding: 9px 12px; border: 1px solid var(--line); border-radius: 8px; font-family: inherit; font-size: 14px; color: var(--ink);
}
.ad-field input:focus, .ad-field textarea:focus, .ad-field select:focus { outline: none; border-color: var(--blue); }
.ad-field textarea { min-height: 72px; resize: vertical; }
.img-pick { display: flex; gap: 10px; align-items: center; }
.img-pick img { width: 74px; height: 44px; object-fit: cover; border-radius: 8px; border: 1px solid var(--line); background: var(--bg-soft); }
/* 图片建议尺寸提示 */
.ad-hint { font-size: 12.5px; line-height: 1.6; color: var(--ink-3); background: #FAFBFE; border-left: 3px solid rgba(11, 92, 216, .35); padding: 6px 10px; border-radius: 0 6px 6px 0; }

/* ---------- 图标选择器（中文名称 + 缩略图） ---------- */
.icp { position: relative; }
.icp__btn {
  width: 100%; display: flex; align-items: center; gap: 8px;
  padding: 8px 12px; border: 1px solid var(--line); border-radius: 8px; background: #fff;
  font-family: inherit; font-size: 14px; color: var(--ink); text-align: left;
}
.icp__btn:hover { border-color: var(--blue); }
.icp__txt { flex: 1 1 auto; }
.icp__svg { flex: 0 0 auto; color: var(--blue); }
.icp__caret {
  flex: 0 0 auto; width: 0; height: 0; margin-left: 2px;
  border-left: 5px solid transparent; border-right: 5px solid transparent; border-top: 6px solid var(--ink-3);
}
.icp__panel {
  display: none; position: absolute; z-index: 30; top: calc(100% + 6px); left: 0; right: 0;
  max-height: 288px; overflow-y: auto; background: #fff; border: 1px solid var(--line);
  border-radius: 10px; box-shadow: 0 12px 32px rgba(15, 23, 42, .14); padding: 6px;
}
.icp.is-open .icp__panel { display: block; }
.icp__opt {
  display: flex; align-items: center; gap: 8px; width: 100%;
  padding: 8px 10px; border: 0; border-radius: 7px; background: transparent;
  font-family: inherit; font-size: 14px; color: var(--ink); text-align: left;
}
.icp__opt:hover { background: #F2F7FF; }
.icp__opt.is-on { background: rgba(11, 92, 216, .1); color: var(--blue); font-weight: 600; }
.icp__opt.is-on .icp__svg { color: var(--blue); }
.ad-tip { background: #F2F7FF; border: 1px solid rgba(11, 92, 216, .2); color: #1B4FA0; padding: 12px 16px; border-radius: 10px; font-size: 13.5px; margin-bottom: 18px; }

/* ---------- 后台账号安全（修改登录密码） ---------- */
.pwd-eye {
  position: absolute; right: 6px; top: 50%; transform: translateY(-50%);
  height: 26px; padding: 0 10px; font-size: 12px; border-radius: 6px;
  border: 1px solid var(--line); background: var(--bg-soft); color: var(--ink-2); cursor: pointer;
}
.pwd-eye:hover { border-color: var(--blue); color: var(--blue); }
.sec-status { display: flex; flex-direction: column; gap: 10px; font-size: 13.5px; color: var(--ink-2); }
.sec-badge { display: inline-block; padding: 3px 10px; border-radius: 999px; font-size: 12.5px; font-weight: 600; }
.sec-badge.is-ok { background: rgba(22, 163, 74, .1); color: #15803D; border: 1px solid rgba(22, 163, 74, .25); }
.sec-badge.is-warn { background: rgba(226, 55, 68, .1); color: var(--red-dark); border: 1px solid rgba(226, 55, 68, .25); }
.sec-note { font-size: 12.5px; color: var(--ink-3); line-height: 1.7; }
.sec-note--warn { color: var(--red-dark); background: #FFF7F7; border: 1px solid rgba(226, 55, 68, .25); border-radius: 8px; padding: 9px 12px; }
.sec-meter { display: flex; align-items: center; gap: 12px; margin-top: 14px; font-size: 13px; color: var(--ink-2); }
.sec-meter__bar { flex: 0 0 220px; height: 6px; border-radius: 999px; background: var(--line); overflow: hidden; }
.sec-meter__bar i { display: block; height: 100%; width: 0; border-radius: 999px; background: var(--line); transition: width .25s, background .25s; }
.sec-meter__bar i.is-weak { width: 33%; background: var(--red); }
.sec-meter__bar i.is-mid { width: 66%; background: #E9A23B; }
.sec-meter__bar i.is-strong { width: 100%; background: #16A34A; }
.sec-rules { display: flex; flex-wrap: wrap; gap: 10px 20px; margin-top: 12px; }
.sec-rule { display: inline-flex; align-items: center; gap: 7px; font-size: 12.5px; color: var(--ink-3); }
.sec-rule i { width: 14px; height: 14px; border-radius: 50%; border: 1.5px solid var(--line); position: relative; flex: 0 0 auto; }
.sec-rule.is-ok { color: #15803D; }
.sec-rule.is-ok i { border-color: #16A34A; background: #16A34A; }
.sec-rule.is-ok i::after { content: ''; position: absolute; left: 3.5px; top: 1px; width: 4px; height: 7px; border: solid #fff; border-width: 0 1.6px 1.6px 0; transform: rotate(42deg); }
.ad-row.is-disabled { opacity: .55; pointer-events: none; }
.toast {
  position: fixed; left: 50%; bottom: 40px; transform: translateX(-50%) translateY(20px); z-index: 120;
  background: #0F172A; color: #fff; padding: 12px 22px; border-radius: 999px; font-size: 14.5px; opacity: 0;
  transition: all .3s; pointer-events: none;
}
.toast.is-show { opacity: 1; transform: translateX(-50%); }

/* ---------- 响应式 ---------- */
@media (max-width: 1200px) {
  .grid-5 { grid-template-columns: repeat(4, 1fr); }
  .grid-6, .grid-7 { grid-template-columns: repeat(4, 1fr); }
  .ft__main { grid-template-columns: 1fr; }
  .ft__qr { grid-column: auto; }
  .slide__title { font-size: 44px; }
}
@media (max-width: 992px) {
  .hd__nav { display: none; }
  .hd__nav.is-open {
    display: flex; position: absolute; left: 0; right: 0; top: 76px; flex-direction: column; align-items: stretch;
    background: #fff; border-bottom: 1px solid var(--line); padding: 10px 24px 16px; box-shadow: var(--shadow); gap: 2px;
  }
  .hd__burger { display: block; }
  .hd__acts { margin-left: auto; }
  .hd__acts .btn--ghost { display: none; }
  .grid-5, .grid-4, .grid-3, .grid-6, .grid-7, .grid-2, .form-grid, .split, .feature-grid, .pd-metrics, .stat-strip { grid-template-columns: repeat(2, 1fr); }
  .slide { height: 460px; }
  .slide__title { font-size: 34px; }
  .section { padding: 62px 0; }
  .sec-title { font-size: 28px; }
  .phero__title { font-size: 34px; }
  .float { right: 10px; }
  .float__btn { width: 54px; }
  .container { width: min(100% - 32px, var(--maxw)); }
  .ad-wrap { grid-template-columns: 1fr; }
  .ad-side { position: static; display: flex; flex-wrap: wrap; gap: 6px; }
  .ad-side button { width: auto; }
}
@media (max-width: 640px) {
  .hd__inner { padding-left: 0; }
  .grid-5, .grid-4, .grid-3, .grid-6, .grid-7, .grid-2, .form-grid, .split, .feature-grid, .pd-metrics, .stat-strip, .ad-grid, .ad-grid--3 { grid-template-columns: 1fr; }
  .slide { height: 400px; }
  .slide__title { font-size: 26px; }
  .slide__sub { font-size: 15px; }
  .cta-bar { padding: 32px 24px; }
  .cta-bar h3 { font-size: 22px; }
  .ft__main { grid-template-columns: 1fr; gap: 30px; }
  .ft__col--contact { justify-self: start; }
}

/* ===== 后台登录 · 滑块拼图验证 ===== */
.slc { width: 300px; max-width: 100%; margin: 0 auto 18px; -webkit-user-select: none; user-select: none; }
.slc__stage { position: relative; width: 300px; height: 160px; max-width: 100%; border-radius: 10px; overflow: hidden; background: #eef3fb; }
.slc__stage canvas { display: block; }
#slcBg { width: 300px; height: 160px; max-width: 100%; }
#slcPiece { position: absolute; left: 0; top: 0; filter: drop-shadow(0 2px 5px rgba(0, 0, 0, .4)); }
.slc__refresh { position: absolute; right: 8px; top: 8px; width: 26px; height: 26px; line-height: 26px; text-align: center; border-radius: 50%; background: rgba(0, 0, 0, .38); color: #fff; font-size: 15px; cursor: pointer; z-index: 3; }
.slc__refresh:hover { background: rgba(0, 0, 0, .58); }
.slc__mask { position: absolute; inset: 0; display: grid; place-items: center; background: rgba(255, 255, 255, .92); font-size: 13px; color: #5b6b85; z-index: 4; cursor: pointer; }
.slc__bar { position: relative; margin-top: 10px; height: 40px; border-radius: 20px; background: #eef1f7; border: 1px solid #dfe5ef; overflow: hidden; }
.slc__fill { position: absolute; left: 0; top: 0; bottom: 0; width: 0; background: rgba(11, 92, 216, .16); }
.slc__handle { position: absolute; left: 0; top: 0; width: 40px; height: 40px; border-radius: 20px; background: #fff; box-shadow: 0 2px 6px rgba(11, 92, 216, .3); display: grid; place-items: center; color: var(--blue); font-size: 16px; font-weight: 700; cursor: grab; z-index: 2; touch-action: none; }
.slc__handle.is-drag { cursor: grabbing; }
.slc__bar.is-ok { background: rgba(38, 166, 91, .14); border-color: rgba(38, 166, 91, .45); }
.slc__bar.is-ok .slc__handle { background: #26A65B; color: #fff; }
.slc__bar.is-ok .slc__fill { background: rgba(38, 166, 91, .18); }
.slc__bar.is-bad { animation: slcShake .32s; }
@keyframes slcShake { 0%, 100% { transform: translateX(0); } 25% { transform: translateX(-6px); } 75% { transform: translateX(6px); } }
.slc__text { position: absolute; inset: 0; display: grid; place-items: center; font-size: 13px; color: #7b8aa3; z-index: 1; pointer-events: none; }

/* ===== 卡片栏：条目不足时左右居中分布 ===== */
.grid-4--center { justify-content: center; }
.grid-4--c1 { grid-template-columns: minmax(0, 360px); }
.grid-4--c2 { grid-template-columns: repeat(2, minmax(0, 340px)); }
.grid-4--c3 { grid-template-columns: repeat(3, minmax(0, 300px)); }
@media (max-width: 1024px) {
  .grid-4--c2, .grid-4--c3 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 640px) {
  .grid-4--c1, .grid-4--c2, .grid-4--c3 { grid-template-columns: 1fr; }
}