/* ============================================================
   home-shared.css
   首页落地页 + 智能体目录页 共用样式
   - Hero 科幻 AI 背景（粒子 / 网格 / 机器人剪影 / 光圈）
   - 智能体卡片画廊（acard 系列）
   - 页脚
   字体「阿里妈妈方圆体特粗方」在页面 <head> 用 <link> 引入
   ============================================================ */

/* ====== Hero 区域：科幻 AI 背景 ====== */
.home-hero {
  position: relative;
  padding: 70px 0 56px;
  text-align: center;
  overflow: hidden;
  min-height: 480px;
  display: flex; align-items: center;
}
.home-hero-bg {
  position: absolute; inset: 0;
  background:
    /* 微光粒子 */
    radial-gradient(1px 1px at var(--gx,20%) var(--gy,30%), rgba(99,102,241,.45) 50%, transparent 51%),
    radial-gradient(1px 1px at var(--gx2,75%) var(--gy2,18%), rgba(59,130,246,.4) 50%, transparent 51%),
    radial-gradient(1px 1px at var(--gx3,55%) var(--gy3,72%), rgba(168,85,247,.35) 50%, transparent 51%),
    radial-gradient(1px 1px at var(--gx4,12%) var(--gy4,60%), rgba(6,182,212,.3) 50%, transparent 51%),
    radial-gradient(1px 1px at var(--gx5,88%) var(--gy5,48%), rgba(236,72,153,.25) 50%, transparent 51%),
    /* 底色渐变 */
    linear-gradient(165deg, #eef4ff 0%, #f0ebfe 30%, #faf5ff 58%, #f5f0ff 78%, #fff 100%);
  z-index: 0;
  animation: drift 12s ease-in-out infinite alternate;
}
@keyframes drift {
  0% { --gx:20%; --gy:30%; --gx2:75%; --gy2:18%; --gx3:55%; --gy3:72%; --gx4:12%; --gy4:60%; --gx5:88%; --gy5:48%; }
  100% { --gx:25%; --gy:26%; --gx2:70%; --gy2:22%; --gx3:50%; --gy3:76%; --gx4:16%; --gy4:56%; --gx5:84%; --gy5:52%; }
}

/* 科幻网格线 */
.home-hero-bg::before {
  content:''; position:absolute; inset:0;
  background-image:
    linear-gradient(rgba(99,102,241,.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(99,102,241,.06) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse 70% 60% at 50% 40%, black 20%, transparent 70%);
  -webkit-mask-image: radial-gradient(ellipse 70% 60% at 50% 40%, black 20%, transparent 70%);
}

/* 浮动机器人剪影（CSS 绘制，纯装饰） */
.home-hero-bg::after {
  content:''; position:absolute;
  right: 4%; bottom: 8%;
  width: 180px; height: 220px;
  background:
    /* 机器人头部 */
    radial-gradient(ellipse 52px 46px at 50% 22%, rgba(99,102,241,.10) 60%, transparent 61%),
    /* 眼睛 */
    radial-gradient(ellipse 10px 10px at 38% 20%, rgba(99,102,241,.22) 50%, transparent 51%),
    radial-gradient(ellipse 10px 10px at 62% 20%, rgba(99,102,241,.22) 50%, transparent 51%),
    /* 天线 */
    linear-gradient(2deg, transparent 45%, rgba(99,102,241,.12) 46%, transparent 47%),
    /* 身体 */
    radial-gradient(ellipse 64px 80px at 50% 62%, rgba(99,102,241,.07) 60%, transparent 61%),
    /* 肩膀 */
    radial-gradient(ellipse 28px 18px at 26% 52%, rgba(99,102,241,.06) 50%, transparent 51%),
    radial-gradient(ellipse 28px 18px at 74% 52%, rgba(99,102,241,.06) 50%, transparent 51%);
  opacity: .7;
  animation: floatBot 8s ease-in-out infinite;
}
@keyframes floatBot {
  0%,100% { transform: translateY(0) rotate(0deg); }
  50% { transform: translateY(-14px) rotate(1.5deg); }
}

/* 左侧装饰机器人 */
.sci-fi-bot-left {
  position:absolute; left:3%; top:18%;
  width:120px;height:150px;
  background:
    radial-gradient(ellipse 36px 32px at 50% 20%, rgba(59,130,246,.09) 60%, transparent 61%),
    radial-gradient(ellipse 7px 7px at 36% 18%, rgba(59,130,246,.18) 50%, transparent 51%),
    radial-gradient(ellipse 7px 7px at 64% 18%, rgba(59,130,246,.18) 50%, transparent 51%),
    radial-gradient(ellipse 44px 56px at 50% 58%, rgba(59,130,246,.055) 60%, transparent 61%);
  opacity:.6; animation: floatBot 10s ease-in-out infinite reverse;
  pointer-events:none;
}

/* 光圈装饰 */
.glow-ring {
  position:absolute; border-radius:50%;
  border:1.5px solid rgba(99,102,241,.14);
  pointer-events:none;
  animation: pulseRing 6s ease-in-out infinite;
}
@keyframes pulseRing {
  0%,100% { transform: scale(1); opacity:.5; }
  50% { transform: scale(1.08); opacity:.85; }
}

.home-hero-inner {
  position: relative; z-index: 2;
  max-width: 700px;
  margin: 0 auto;
  padding: 0 24px;
}

/* LOGO + 品牌名 */
.home-logo-wrap {
  display: inline-flex; align-items:center; gap:14px;
  margin-bottom: 24px;
}
.home-logo {
  width: 88px; height: 88px;
  border-radius: 24px;
  object-fit: cover;
  box-shadow: 0 14px 44px rgba(124,58,237,.32), 0 4px 16px rgba(79,110,247,.18);
  transition: transform .35s var(--ease);
  border: 2.5px solid rgba(255,255,255,.7);
}
.home-logo:hover { transform: scale(1.06) rotate(-2deg); }

/* 品牌名字体：阿里妈妈方圆体特粗方 */
.home-brand-name {
  font-family: 'AlibabaPuHuiTi-3-115Black', '阿里巴巴普惠体', 'PingFang SC', 'Microsoft YaHei', sans-serif;
  font-size: 30px; font-weight: 900;
  letter-spacing: .03em;
  color: var(--navy-900);
  line-height: 1.2;
}

.home-title { font-size: clamp(26px, 4vw, 36px); font-weight: 800; color: var(--navy-900); margin: 0 0 12px; line-height: 1.3; }
.home-title .hl { background: linear-gradient(135deg, #2563eb, #7c3aed); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.home-sub { font-size: 16px; color: var(--fg-2); line-height: 1.7; margin: 0 auto 30px; max-width: 560px; }
.home-cta { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }

/* ====== 智能体卡片画廊 ====== */
.agents-section {
  padding: 48px 0 64px;
  position:relative;
}
.agents-head {
  text-align:center; margin-bottom:36px;
}
.agents-head h2 {
  font-size: clamp(22px, 3.2vw, 30px); font-weight:800;
  color:var(--navy-900); margin:0 0 8px;
}
.agents-head p {
  font-size:15px; color:var(--fg-2); margin:0;
}

.agent-cards-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 24px;
}

/* 单张智能体卡片 */
.acard {
  background:#fff;
  border:1px solid var(--border);
  border-radius:18px;
  padding:24px;
  display:flex; flex-direction:column;
  gap:14px;
  transition: transform .25s var(--ease), box-shadow .25s var(--ease), border-color .2s;
  cursor:default;
  position:relative;
  overflow:hidden;
}
.acard::before {
  content:''; position:absolute; top:0;left:0;right:0; height:4px;
  background:linear-gradient(90deg, #2563eb, #7c3aed, #a855f7);
  opacity:0; transition:opacity .25s;
}
.acard:hover {
  transform: translateY(-5px);
  box-shadow:0 16px 40px rgba(21,101,216,.12), 0 4px 12px rgba(0,0,0,.04);
  border-color:rgba(99,102,241,.18);
}
.acard:hover::before { opacity:1; }

.acard-top {
  display:flex; align-items:flex-start; gap:14px;
}
.acard-avatar {
  width:56px; height:56px; border-radius:16px;
  flex-shrink:0;
  object-fit:cover;
  border:2px solid rgba(124,58,237,.12);
  box-shadow:0 4px 14px rgba(124,58,237,.15);
}
.acard-info { flex:1; min-width:0; }
.acard-row {
  display:flex; align-items:center; gap:8px; flex-wrap:wrap;
}
.acard-name {
  font-size:17px; font-weight:700; color:var(--navy-900);
  margin:0; line-height:1.3;
}
/* AI 标签 */
.acard-ai-badge {
  display:inline-flex; align-items:center; gap:4px;
  font-size:11px; font-weight:700;
  padding:3px 9px; border-radius:999px;
  background:linear-gradient(135deg,#eef2ff,#ede9fe);
  color:#6366f1;
  border:1px solid rgba(99,102,241,.15);
  white-space:nowrap;
  flex-shrink:0;
}
.acard-tagline {
  font-size:13px; color:var(--blue-700); font-weight:600;
  margin:3px 0 0; line-height:1.4;
}
.acard-about {
  font-size:13.5px; color:var(--fg-soft); line-height:1.65;
  margin:0; flex:1;
  display:-webkit-box; -webkit-line-clamp:3; -webkit-box-orient:vertical; overflow:hidden;
}
.acard-actions {
  display:flex; gap:8px; margin-top:auto; padding-top:4px;
}
.acard-btn {
  flex:1; padding:9px 0; border-radius:10px;
  font-size:13.5px; font-weight:600;
  text-align:center; text-decoration:none;
  transition:all .2s var(--ease);
  border:1px solid transparent;
}
.acard-btn.primary {
  background:linear-gradient(135deg,var(--blue-600),#6366f1);
  color:#fff; box-shadow:0 4px 14px rgba(37,99,235,.25);
}
.acard-btn.primary:hover {
  box-shadow:0 6px 20px rgba(37,99,235,.35);
  transform:translateY(-1px);
}
.acard-btn.ghost {
  background:transparent; color:var(--fg-soft);
  border-color:var(--border-2);
}
.acard-btn.ghost:hover {
  background:var(--bg-soft); color:var(--navy-900);
}

/* 分类标签 */
.acard-cat {
  font-size:11.5px; font-weight:600; padding:3px 10px;
  border-radius:999px; display:inline-block;
}
.acard-cat.practice { background:#eff6ff; color:#1d4ed8; }
.acard-cat.client   { background:#ecfdf5; color:#059669; }
.acard-cat.marketing{ background:#f5f3ff; color:#7c3aed; }
.acard-cat.internal { background:#fef2f2; color:#dc2626; }

/* ====== 页脚 ====== */
.home-footer {
  text-align: center;
  padding: 32px 24px 40px;
  color: var(--muted); font-size: 13px;
  border-top: 1px solid var(--border-2);
  background: linear-gradient(180deg, #fff, #fafbff);
}
.home-footer a { color: var(--blue-600); text-decoration: none; }
/* —— 升级版页脚（品牌 + 备案占位 + 友链） —— */
.home-footer { text-align: left; }
.hf-inner {
  max-width: 1160px; margin: 0 auto; padding: 0 24px;
  display: flex; align-items: flex-start; justify-content: space-between; gap: 24px; flex-wrap: wrap;
}
.hf-brand { display: flex; gap: 12px; align-items: center; max-width: 540px; }
.hf-logo { width: 44px; height: 44px; border-radius: 12px; flex-shrink: 0; box-shadow: 0 2px 8px rgba(21,101,216,.15); }
.hf-name { font-weight: 700; color: var(--navy-900); font-size: 15px; }
.hf-desc { font-size: 12.5px; color: var(--muted); line-height: 1.6; margin-top: 3px; }
.hf-links { display: flex; gap: 22px; flex-wrap: wrap; padding-top: 8px; }
.hf-links a { color: var(--blue-600); text-decoration: none; font-size: 13.5px; }
.hf-links a:hover { text-decoration: underline; }
.hf-bottom {
  max-width: 1160px; margin: 18px auto 0; padding: 14px 24px 0;
  border-top: 1px solid var(--border-2);
  display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap;
  font-size: 12px; color: var(--muted);
}
.hf-tip { opacity: .8; }
@media (max-width: 760px) {
  .hf-inner { flex-direction: column; }
  .hf-bottom { flex-direction: column; gap: 6px; }
}

@media (max-width: 1100px) {
  .agent-cards-grid { grid-template-columns: repeat(3, 1fr); max-width: 980px; }
}
@media (max-width: 760px) {
  .agent-cards-grid { grid-template-columns: 1fr; gap: 14px; }
  .home-title { font-size: 24px; }
  .home-logo { width: 68px; height: 68px; border-radius: 18px; }
  .home-hero { padding: 44px 0 36px; min-height: auto; }
  .home-brand-name { font-size: 22px; }
  .sci-fi-bot-left, .home-hero-bg::after { display:none; }
  .acard { padding:18px; }
  .acard-avatar { width:46px; height:46px; border-radius:12px; }
}

/* ============================================================
   精致化增强（借鉴 workbuddy.homes）
   - 小标签 kicker / 大数字指标带 stat / 编号步骤 steps / 入场动画 reveal
   ============================================================ */

/* 小标签（kicker / eyebrow） */
.kicker {
  display: inline-block;
  font-size: 12.5px; font-weight: 700; letter-spacing: .12em;
  color: var(--blue-700); background: rgba(37,99,235,.08);
  padding: 5px 14px; border-radius: 999px; margin-bottom: 16px;
}

/* 大数字指标带 */
.home-stats { padding: 16px 24px 4px; }
.stat-grid {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px;
  max-width: 1120px; margin: 0 auto;
  background: var(--border); border: 1px solid var(--border);
  border-radius: 18px; overflow: hidden;
  box-shadow: 0 16px 44px rgba(21,101,216,.10), 0 4px 14px rgba(0,0,0,.04);
}
.stat { background: #fff; padding: 26px 18px; text-align: center; }
.stat .num {
  font-size: clamp(26px, 3.2vw, 34px); font-weight: 800; line-height: 1;
  font-family: 'AlibabaPuHuiTi-3-115Black', '阿里巴巴普惠体', 'PingFang SC', sans-serif;
  background: linear-gradient(135deg, #2563eb, #7c3aed);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
}
.stat .lab { margin-top: 9px; font-size: 13.5px; color: var(--fg-soft); }
.stat + .stat { border-left: 1px solid var(--border); }

/* 编号步骤 */
.home-steps { padding: 56px 0 64px; background: linear-gradient(180deg, #fafbff, #fff); }
.steps-head { text-align: center; margin-bottom: 38px; padding: 0 24px; }
.steps-head h2 { font-size: clamp(22px, 3.2vw, 30px); font-weight: 800; color: var(--navy-900); margin: 0 0 8px; }
.steps-head p { font-size: 15px; color: var(--fg-2); margin: 0; }
.steps-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px;
  max-width: 1120px; margin: 0 auto; padding: 0 24px;
}
.step-card {
  background: #fff; border: 1px solid var(--border); border-radius: 18px;
  padding: 28px 24px; position: relative; overflow: hidden;
  transition: transform .25s var(--ease), box-shadow .25s var(--ease), border-color .2s;
}
.step-card::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0; height: 4px;
  background: linear-gradient(90deg, #2563eb, #7c3aed, #a855f7);
  opacity: 0; transition: opacity .25s;
}
.step-card:hover { transform: translateY(-4px); box-shadow: 0 16px 40px rgba(21,101,216,.12); border-color: rgba(99,102,241,.18); }
.step-card:hover::before { opacity: 1; }
.step-no {
  width: 42px; height: 42px; border-radius: 12px; margin-bottom: 16px;
  display: grid; place-items: center;
  font-size: 15px; font-weight: 800; color: #fff;
  background: linear-gradient(135deg, var(--blue-600), #7c3aed);
  box-shadow: 0 8px 20px rgba(37,99,235,.25);
}
.step-card h3 { font-size: 17px; font-weight: 700; color: var(--navy-900); margin: 0 0 8px; }
.step-card p { font-size: 13.5px; color: var(--fg-soft); line-height: 1.7; margin: 0; }

/* 入场动画 */
@keyframes revealUp { from { opacity: 0; transform: translateY(22px); } to { opacity: 1; transform: translateY(0); } }
.reveal { opacity: 0; }
.reveal.is-visible { animation: revealUp .6s var(--ease) both; }
@media (prefers-reduced-motion: reduce) { .reveal { animation: none; opacity: 1; } }

@media (max-width: 820px) {
  .stat-grid { grid-template-columns: repeat(2, 1fr); }
  .stat:nth-child(3) { border-left: none; }
  .stat:nth-child(odd) { border-left: none; }
  .steps-grid { grid-template-columns: 1fr; gap: 14px; }
}

