/* ==========================================================================
   三汇能环 · 首页获客向设计层 v4（2026-10-28）
   --------------------------------------------------------------------------
   仅首页引入（site.css 之后），不影响内页。
   1. 顶部滚动进度条  2. 首屏 v4（全屏 / 光斑 / 打字机 / 滚动提示）
   3. 痛点共鸣区      4. Bento 业务区   5. 数字滚动
   6. 深色信任带（优势 + 资质 + 客户墙合并为一整块深色面）
   ========================================================================== */

/* ---------- 1. 滚动进度条 ---------- */
.pgbar{position:fixed;left:0;top:0;height:3px;width:0;z-index:1200;pointer-events:none;
  background:linear-gradient(90deg,var(--blue-l) 0%,var(--blue) 40%,var(--orange-b) 100%);
  box-shadow:0 0 10px rgba(245,168,46,.45);transition:width .08s linear}

/* ---------- 2. 首屏 v4 ---------- */
.hero{--hero-pad:104px}
.hero--v4{min-height:min(880px,calc(100vh - 64px));display:flex;align-items:center}
.hero-in{padding-block:var(--hero-pad) calc(var(--hero-pad) - 18px)}
.hero-bg{opacity:.62}
.hero--v4 .hero-bg::after{content:"";position:absolute;inset:0;z-index:2;
  background:
    radial-gradient(52% 46% at 12% 18%,rgba(76,158,223,.30),transparent 70%),
    radial-gradient(40% 40% at 88% 72%,rgba(0,179,179,.20),transparent 70%),
    linear-gradient(180deg,rgba(10,42,74,.30) 0%,rgba(10,42,74,.62) 62%,rgba(10,42,74,.92) 100%)}
/* 网格纹理 */
.hero-grid{position:absolute;inset:0;z-index:1;pointer-events:none;opacity:.16;
  background-image:linear-gradient(rgba(255,255,255,.14) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.14) 1px,transparent 1px);
  background-size:64px 64px;
  mask-image:radial-gradient(70% 60% at 50% 45%,#000 0%,transparent 100%);
  -webkit-mask-image:radial-gradient(70% 60% at 50% 45%,#000 0%,transparent 100%)}

.hero h1{font-size:clamp(34px,4.1vw,54px);line-height:1.18;letter-spacing:-.025em}
.hero h1 em{color:#FFC75A;position:relative;white-space:nowrap}
.hero h1 em::after{content:"";position:absolute;left:2px;right:2px;bottom:2px;height:8px;z-index:-1;
  background:rgba(245,168,46,.28);border-radius:2px}

/* 打字机行 */
.type-line{display:flex;flex-wrap:wrap;align-items:center;gap:8px;margin-top:22px;font-size:16px;color:#C7DFF6}
.type-line .tl-lb{padding:4px 10px;border-radius:6px;background:rgba(255,255,255,.10);
  border:1px solid rgba(255,255,255,.16);font-size:13px;color:#9FC9EC;letter-spacing:.02em}
.type-line .tl-tx{font-weight:700;color:#fff;letter-spacing:.01em}
.type-line .tl-cur{display:inline-block;width:2px;height:19px;margin-left:2px;background:#FFC75A;
  animation:tlBlink .9s steps(1) infinite;vertical-align:-3px}
@keyframes tlBlink{0%,49%{opacity:1}50%,100%{opacity:0}}

.hero p.sub{font-size:17px;line-height:1.85;color:#CFE5F9;max-width:600px;margin-top:16px}
.hero p.sub b{color:#fff;font-weight:600}
.hero-acts{margin-top:32px;gap:12px}
.hero .btn--lg{min-height:50px;padding:0 26px;font-size:15.5px}
.hero .btn--ghost{border-color:rgba(255,255,255,.42);color:#fff;background:rgba(255,255,255,.06)}
.hero .btn--ghost:hover{background:rgba(255,255,255,.14);border-color:#fff}
.hero-chips{margin-top:24px}
.hero-chips span{background:rgba(255,255,255,.09);border:1px solid rgba(255,255,255,.14);color:#DCEAF8}

/* 滚动提示 */
.hero-scroll{position:absolute;left:50%;bottom:26px;z-index:4;transform:translateX(-50%);
  display:flex;flex-direction:column;align-items:center;gap:7px;color:#9FC9EC;font-size:11.5px;letter-spacing:.14em}
.hero-scroll i{display:block;width:1px;height:34px;background:linear-gradient(180deg,rgba(255,255,255,.5),transparent);
  position:relative;overflow:hidden}
.hero-scroll i::after{content:"";position:absolute;left:0;top:-34px;width:1px;height:34px;
  background:linear-gradient(180deg,transparent,#FFC75A);animation:scDrop 1.9s var(--ease) infinite}
@keyframes scDrop{0%{top:-34px}70%,100%{top:34px}}

/* 留资卡 v4 */
.hero-card{position:relative}
.hero-card::before{content:"";position:absolute;inset:-10px;border-radius:18px;
  background:linear-gradient(135deg,rgba(76,158,223,.34),rgba(255,255,255,0) 60%);filter:blur(2px);z-index:0}
.hero-card-in{position:relative;z-index:1;border-radius:14px;padding:28px 26px 22px;
  box-shadow:0 24px 60px rgba(6,26,48,.34);backdrop-filter:blur(2px)}
.hero-card .hc-badge{position:absolute;right:-8px;top:-14px;z-index:2;display:inline-flex;align-items:center;gap:6px;
  padding:6px 12px;border-radius:100px;background:linear-gradient(135deg,#F5A82E,#E8A33D);color:#4A3200;
  font-size:12px;font-weight:700;box-shadow:0 6px 18px rgba(232,163,61,.4)}
.hero-card .hc-badge svg{width:13px;height:13px;stroke:currentColor;fill:none}
.hero-card h3{font-size:18px;color:var(--deep)}
.hero-card .hc-list{display:grid;gap:7px;margin:14px 0 2px;padding:0;list-style:none}
.hero-card .hc-list li{display:flex;align-items:flex-start;gap:8px;font-size:12.8px;color:var(--gray-2);line-height:1.55}
.hero-card .hc-list svg{width:14px;height:14px;flex:none;margin-top:2px;stroke:var(--green-b);fill:none;stroke-width:2.4}
.hero-form{margin-top:14px}
.hero-form input,.hero-form select{height:44px;border-radius:9px}
.hero-form .btn--block{min-height:46px;font-size:15.5px;font-weight:700;letter-spacing:.01em}

/* ---------- 3. 痛点共鸣区 ---------- */
.pain-sec{background:#fff;padding:82px 0 76px;position:relative}
.pain-sec::before{content:"";position:absolute;left:0;right:0;top:0;height:1px;background:linear-gradient(90deg,transparent,var(--line) 22%,var(--line) 78%,transparent)}
.pain-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-top:38px}
.pcard{position:relative;display:block;padding:24px 22px 22px;border-radius:14px;background:#fff;
  border:1px solid var(--line-2);box-shadow:0 2px 8px rgba(10,42,74,.04);
  transition:transform .38s var(--ease),box-shadow .38s var(--ease),border-color .28s var(--ease)}
.pcard:hover{transform:translateY(-6px);box-shadow:0 18px 40px rgba(10,42,74,.11);border-color:transparent}
.pcard .pn{position:absolute;right:16px;top:14px;font-family:var(--font-en);font-size:34px;font-weight:800;
  color:var(--ac-l);line-height:1;letter-spacing:-.04em;transition:color .3s var(--ease)}
.pcard:hover .pn{color:var(--ac)}
.pcard .pi{width:46px;height:46px;border-radius:12px;display:flex;align-items:center;justify-content:center;
  background:var(--ac-l);transition:transform .38s var(--ease)}
.pcard:hover .pi{transform:scale(1.08) rotate(-4deg)}
.pcard .pi svg{width:23px;height:23px;stroke:var(--ac-ink);fill:none;stroke-width:1.9}
.pcard h3{margin-top:15px;font-size:17.5px;line-height:1.4}
.pcard .pq{margin-top:9px;font-size:13.6px;color:var(--gray-2);line-height:1.75}
.pcard .pa{margin-top:14px;padding-top:13px;border-top:1px dashed var(--line-2);
  display:flex;align-items:center;justify-content:space-between;gap:8px;font-size:13px;font-weight:600;color:var(--ac-ink)}
.pcard .pa svg{width:15px;height:15px;stroke:currentColor;fill:none;stroke-width:2.2;
  transition:transform .3s var(--ease)}
.pcard:hover .pa svg{transform:translateX(4px)}
.pcard::after{content:"";position:absolute;left:22px;right:22px;bottom:0;height:3px;border-radius:3px 3px 0 0;
  background:var(--ac);transform:scaleX(0);transform-origin:left;transition:transform .38s var(--ease)}
.pcard:hover::after{transform:scaleX(1)}
.pain-foot{margin-top:26px;text-align:center;font-size:14.5px;color:var(--gray-2)}
.pain-foot b{color:var(--blue);font-weight:700}
.pain-foot .btn{margin-left:12px}

/* ---------- 4. Bento 业务区 ---------- */
.bento{display:grid;grid-template-columns:1.32fr 1fr 1fr;grid-template-rows:auto auto;gap:18px}
.bento .bk{position:relative;overflow:hidden;border-radius:16px;background:#fff;border:1px solid var(--line-2);
  display:flex;flex-direction:column;transition:transform .4s var(--ease),box-shadow .4s var(--ease)}
.bento .bk:hover{transform:translateY(-5px);box-shadow:0 22px 48px rgba(10,42,74,.13)}
.bento .bk--lead{grid-row:span 2}
.bento .bk .bm{position:relative;overflow:hidden;background:var(--ac-l)}
.bento .bk .bm .art{position:absolute;inset:0;background-size:cover;background-position:center;
  transition:transform .7s var(--ease);opacity:.92}
.bento .bk:hover .bm .art{transform:scale(1.07)}
.bento .bk--lead .bm{flex:1;min-height:250px}
.bento .bk--lead .bm::after{content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(10,42,74,.05) 0%,rgba(10,42,74,.42) 100%)}
.bento .bk .bm{min-height:132px}
.bento .bk .bd{padding:22px 22px 20px;display:flex;flex-direction:column;flex:1}
.bento .bk .bk-top{display:flex;align-items:center;gap:10px}
.bento .bk .bk-top .ic{width:38px;height:38px;flex:none;border-radius:10px;display:flex;align-items:center;justify-content:center;background:var(--ac-l)}
.bento .bk .bk-top .ic svg{width:20px;height:20px;stroke:var(--ac-ink);fill:none;stroke-width:1.9}
.bento .bk h3{font-size:19px;line-height:1.35}
.bento .bk--lead h3{font-size:23px}
.bento .bk p{margin-top:10px;font-size:14px;color:var(--gray-2);line-height:1.8}
.bento .bk .ktags{margin-top:14px;display:flex;flex-wrap:wrap;gap:7px}
.bento .bk .ktags span{padding:5px 11px;border-radius:100px;background:var(--bg-soft);font-size:12.4px;color:var(--gray)}
.bento .bk .bk-go{margin-top:auto;padding-top:16px;display:flex;align-items:center;gap:7px;
  font-size:13.8px;font-weight:700;color:var(--ac-ink)}
.bento .bk .bk-go svg{width:16px;height:16px;stroke:currentColor;fill:none;stroke-width:2.2;transition:transform .3s var(--ease)}
.bento .bk:hover .bk-go svg{transform:translateX(5px)}
.bento .bk .bk-badge{position:absolute;left:16px;top:16px;z-index:3;padding:5px 11px;border-radius:100px;
  background:rgba(255,255,255,.94);font-size:12px;font-weight:700;color:var(--ac-ink);box-shadow:0 4px 14px rgba(10,42,74,.16)}
/* 主卡底部数据条 */
.bento .bk--lead .bk-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-top:16px;
  padding-top:15px;border-top:1px solid var(--line-2)}
.bento .bk--lead .bk-stats div b{display:block;font-family:var(--font-en);font-size:20px;font-weight:800;color:var(--ac-ink);line-height:1.1}
.bento .bk--lead .bk-stats div span{display:block;margin-top:4px;font-size:12px;color:var(--gray-3);line-height:1.45}

/* ---------- 4b. 指针跟随高光（--mx / --my 由 home-v4.js 写入） ---------- */
@media (hover:hover) and (pointer:fine){
  .pcard::before,.bento .bk::before,.dwhy .dw::before{
    content:"";position:absolute;inset:0;border-radius:inherit;pointer-events:none;z-index:1;
    background:radial-gradient(240px circle at var(--mx,50%) var(--my,0%),rgba(19,108,183,.07),transparent 62%);
    opacity:0;transition:opacity .3s var(--ease)}
  .pcard:hover::before,.bento .bk:hover::before,.dwhy .dw:hover::before{opacity:1}
  .dwhy .dw::before{background:radial-gradient(240px circle at var(--mx,50%) var(--my,0%),rgba(143,211,255,.12),transparent 62%)}
}

/* ---------- 4c. 单列媒体画廊 ---------- */
.m-gallery--1{grid-template-columns:1fr}

/* ---------- 5. 数字滚动 ---------- */
.num{font-variant-numeric:tabular-nums}
.stat b .num{display:inline}

/* ---------- 6. 深色信任带 ---------- */
.sec--deep{background:linear-gradient(180deg,#0E3E6E 0%,#0A2A4A 100%);color:#fff;position:relative;overflow:hidden}
.sec--deep::before{content:"";position:absolute;left:-10%;top:-30%;width:60%;height:80%;pointer-events:none;
  background:radial-gradient(circle,rgba(76,158,223,.18),transparent 68%)}
.sec--deep::after{content:"";position:absolute;right:-8%;bottom:-40%;width:52%;height:90%;pointer-events:none;
  background:radial-gradient(circle,rgba(0,179,179,.14),transparent 70%)}
.sec--deep .wrap{position:relative;z-index:2}
.sec--deep .eyebrow{color:#8FD3FF}
.sec--deep .sec-head h2{color:#fff}
.sec--deep .sec-head h2 .accent{color:#FFC75A}
.sec--deep .sec-head .lead{color:#B7D3EE}
.sec--deep + .sec--deep{padding-top:0}

/* 深色面上的优势卡 */
.dwhy{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.dwhy .dw{position:relative;padding:26px 20px 22px;border-radius:14px;overflow:hidden;
  background:rgba(255,255,255,.055);border:1px solid rgba(255,255,255,.11);
  transition:transform .38s var(--ease),background .3s var(--ease),border-color .3s var(--ease)}
.dwhy .dw:hover{transform:translateY(-5px);background:rgba(255,255,255,.10);border-color:rgba(255,255,255,.24)}
.dwhy .dw .no{font-family:var(--font-en);font-size:30px;font-weight:800;line-height:1;color:rgba(255,255,255,.16);letter-spacing:-.03em}
.dwhy .dw .ic{margin-top:14px;width:44px;height:44px;border-radius:11px;display:flex;align-items:center;justify-content:center;
  background:rgba(255,255,255,.10)}
.dwhy .dw .ic svg{width:22px;height:22px;stroke:#8FD3FF;fill:none;stroke-width:1.9}
.dwhy .dw:nth-child(2) .ic svg{stroke:#5BE0A0}
.dwhy .dw:nth-child(3) .ic svg{stroke:#5FD8D8}
.dwhy .dw:nth-child(4) .ic svg{stroke:#FFC75A}
.dwhy .dw h3{margin-top:14px;font-size:17.5px;color:#fff}
.dwhy .dw p{margin-top:8px;font-size:13.4px;line-height:1.72;color:#BCD7F0}

/* 深色资质条 */
.dcert{display:grid;grid-template-columns:repeat(5,1fr);gap:12px;margin-top:34px}
.dcert .dc{padding:18px 14px;border-radius:12px;text-align:center;
  background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.10);transition:background .3s var(--ease),transform .3s var(--ease)}
.dcert .dc:hover{background:rgba(255,255,255,.10);transform:translateY(-3px)}
.dcert .dc svg{width:26px;height:26px;stroke:#8FD3FF;fill:none;stroke-width:1.8;margin:0 auto}
.dcert .dc b{display:block;margin-top:10px;font-size:13.6px;font-weight:600;color:#fff;line-height:1.45}
.dcert .dc span{display:block;margin-top:5px;font-size:11.6px;color:#93B6D8}

/* 深色客户墙 */
.dlogo{display:grid;grid-template-columns:repeat(6,1fr);gap:10px;margin-top:28px}
.dlogo .dl{display:flex;align-items:center;justify-content:center;gap:7px;padding:14px 10px;border-radius:10px;
  background:rgba(255,255,255,.045);border:1px solid rgba(255,255,255,.08);
  font-size:13px;color:#D3E5F7;transition:background .3s var(--ease),color .3s var(--ease)}
.dlogo .dl:hover{background:rgba(255,255,255,.10);color:#fff}
.dlogo .dl svg{width:16px;height:16px;stroke:#8FD3FF;fill:none;stroke-width:1.8;flex:none}
.dtrust-note{margin-top:18px;font-size:12.2px;color:#8FB2D4;text-align:center;line-height:1.7}

/* ---------- 7. 中段留资条 v4 ---------- */
.quicklead{border-radius:18px;overflow:hidden;background:linear-gradient(115deg,#136CB7 0%,#1E80D6 48%,#0A3F73 100%);
  box-shadow:0 20px 46px rgba(19,108,183,.28)}
.quicklead .ql-t b{font-size:22px}
.quicklead .ql-t span{font-size:14.5px;opacity:.92}

/* ---------- 8. 响应式 ---------- */
@media (max-width:1080px){
  .pain-grid{grid-template-columns:repeat(2,1fr)}
  .bento{grid-template-columns:1fr 1fr}
  .bento .bk--lead{grid-row:span 1;grid-column:span 2}
  .bento .bk--lead .bm{min-height:210px}
  .dwhy{grid-template-columns:repeat(2,1fr)}
  .dcert{grid-template-columns:repeat(3,1fr)}
  .dlogo{grid-template-columns:repeat(4,1fr)}
}
@media (max-width:860px){
  .hero--v4{min-height:auto}
  .hero-in{padding-block:56px 62px}
  .hero h1{font-size:31px}
  .hero-scroll{display:none}
  .hero-grid{opacity:.10}
  .pain-grid{grid-template-columns:1fr}
  .bento{grid-template-columns:1fr}
  .bento .bk--lead{grid-column:span 1}
  .bento .bk--lead .bm{min-height:180px}
  .bento .bk .bm{min-height:150px}
  .dcert{grid-template-columns:repeat(2,1fr)}
  .dlogo{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:640px){
  .dwhy{grid-template-columns:1fr}
  .dcert{grid-template-columns:1fr}
  .pcard .pn{font-size:28px}
}

/* ---------- 9. 无障碍：减弱动效 ---------- */
@media (prefers-reduced-motion:reduce){
  .hero-scroll i::after,.type-line .tl-cur{animation:none}
  .hero-grid{display:none}
}