/* ============================================================
   Wati 产品推广官网 · 设计系统
   主色沿用 Wati 官方青绿 #00e785 + 天蓝 #4fc3ff
   ============================================================ */
:root{
  /* 主色（Wati OFFICIAL） */
  --wati-green:#00e785;
  --wati-green-rgb:0,231,133;
  --wati-deep:#0a9d6b;
  --wati-blue:#4fc3ff;
  --wati-blue-rgb:79,195,255;

  /* 浅色调 */
  --wati-green-tint:#cafde8;
  --wati-blue-tint:#e3f5ff;
  --wati-yellow:#ffe96e;
  --wati-yellow-tint:#fff6da;

  /* 中性 */
  --wati-black:#1d1d1d;
  --wati-white:#ffffff;

  /* 语义变量 */
  --text:#1d1d1d;
  --text-muted:#5b6470;
  --bg:#ffffff;
  --bg-soft:#f4fbf8;
  --border:#e3ece8;
  --radius:14px;
  --radius-lg:22px;
  --shadow:0 6px 24px rgba(0,231,133,.12);
  --shadow-sm:0 2px 10px rgba(0,231,133,.10);
  --maxw:1120px;
  --header-h:64px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:"DM Sans","PingFang SC","Microsoft YaHei","Hiragino Sans GB",system-ui,sans-serif;
  color:var(--text);background:var(--bg);line-height:1.7;
  -webkit-font-smoothing:antialiased;
  font-size:16px;
}
img,svg{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
ul,ol{list-style:none}
button{font:inherit;cursor:pointer;border:none;background:none}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 24px}
section{padding:72px 0}
section:nth-of-type(even){background:var(--bg-soft)}

/* ===== 通用节头 ===== */
.sec-head{max-width:760px;margin-bottom:44px}
.eyebrow{
  display:inline-block;font-size:13px;font-weight:700;letter-spacing:2px;
  color:var(--wati-deep);background:var(--wati-green-tint);
  padding:4px 14px;border-radius:20px;margin-bottom:14px;
}
.sec-head h2{font-size:clamp(26px,4vw,38px);font-weight:700;line-height:1.25;letter-spacing:-.5px}
.sec-head .sub{font-size:16.5px;color:var(--text-muted);margin-top:12px}

/* ===== 按钮 ===== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-weight:700;font-size:15.5px;border-radius:12px;
  padding:13px 28px;transition:all .22s ease;white-space:nowrap;
}
.btn-primary{
  background:linear-gradient(120deg,var(--wati-deep),var(--wati-green));
  color:#fff;box-shadow:0 6px 18px rgba(0,231,133,.35);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 10px 26px rgba(0,231,133,.45)}
.btn-ghost{
  background:#fff;color:var(--wati-deep);
  border:1.5px solid var(--wati-green);
}
.btn-ghost:hover{background:var(--wati-green-tint)}

/* ===== Header ===== */
.site-header{
  position:sticky;top:0;z-index:100;height:var(--header-h);
  background:rgba(255,255,255,.92);backdrop-filter:blur(10px);
  border-bottom:1px solid transparent;transition:border-color .25s;
}
.site-header.scrolled{border-bottom-color:var(--border);box-shadow:0 2px 14px rgba(0,0,0,.05)}
.header-in{display:flex;align-items:center;gap:28px;height:var(--header-h)}
.logo img{height:40px;width:auto}
.nav-links{display:flex;gap:6px;margin-left:auto}
.nav-links a{
  font-size:14.5px;font-weight:600;color:var(--text-muted);
  padding:8px 13px;border-radius:9px;transition:all .18s;
}
.nav-links a:hover{color:var(--wati-deep);background:var(--wati-green-tint)}
.header-cta{margin-left:8px}
.header-cta .btn{padding:9px 20px;font-size:14px}
.nav-toggle{display:none;flex-direction:column;gap:5px;padding:8px;margin-left:auto}
.nav-toggle span{display:block;width:22px;height:2.4px;border-radius:2px;background:var(--text);transition:.25s}

/* ===== Hero ===== */
.hero{
  position:relative;overflow:hidden;color:#fff;
  background:linear-gradient(135deg,#0a9d6b 0%,#00e785 55%,#4fc3ff 100%);
  padding:88px 0 96px;
}
.hero::before,.hero::after{
  content:"";position:absolute;border-radius:50%;
  background:rgba(255,255,255,.10);
}
.hero::before{width:420px;height:420px;right:-120px;top:-140px}
.hero::after{width:300px;height:300px;left:-100px;bottom:-120px}
.hero .wrap{position:relative;z-index:2}
.hero-eyebrow{
  display:inline-block;font-size:13px;font-weight:600;letter-spacing:1.5px;
  background:rgba(255,255,255,.16);border:1px solid rgba(255,255,255,.30);
  backdrop-filter:blur(6px);padding:6px 16px;border-radius:24px;margin-bottom:22px;
}
.hero h1{
  font-size:clamp(34px,6vw,58px);font-weight:700;line-height:1.18;letter-spacing:-1px;
  text-shadow:0 2px 14px rgba(0,0,0,.14);
}
.hero h1 .accent{
  display:block;
  background:linear-gradient(90deg,var(--wati-yellow),#fff);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero .hero-sub{
  font-size:clamp(16px,2.2vw,19px);max-width:680px;margin-top:20px;
  opacity:.96;font-weight:500;
}
.hero-ctas{display:flex;flex-wrap:wrap;gap:14px;margin-top:34px}
.hero-ctas .btn-ghost{background:rgba(255,255,255,.14);color:#fff;border-color:rgba(255,255,255,.55);backdrop-filter:blur(6px)}
.hero-ctas .btn-ghost:hover{background:rgba(255,255,255,.26)}
.hero-stats{
  display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-top:52px;
}
.hstat{
  background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.26);
  backdrop-filter:blur(8px);border-radius:16px;padding:18px 20px;
}
.hstat .num{font-size:clamp(24px,3vw,32px);font-weight:700;line-height:1.1}
.hstat .lbl{font-size:13.5px;opacity:.92;margin-top:6px}
.hero-src{margin-top:18px;font-size:12px;opacity:.72}

/* ===== Trust bar ===== */
.trust{padding:44px 0}
.trust-grid{
  display:grid;grid-template-columns:repeat(5,1fr);gap:14px;
  background:var(--bg);border:1px solid var(--border);border-radius:var(--radius-lg);
  padding:26px 28px;box-shadow:var(--shadow-sm);
}
.titem{text-align:center;padding:6px 8px}
.titem .t-name{font-size:15px;font-weight:700;color:var(--wati-deep)}
.titem .t-desc{font-size:12.5px;color:var(--text-muted);margin-top:5px;line-height:1.5}
.trust-note{font-size:13.5px;color:var(--text-muted);text-align:center;margin-top:18px}
.trust-stats{
  display:grid;grid-template-columns:repeat(4,1fr);gap:12px;
  margin-bottom:16px;padding:18px 22px;border-radius:var(--radius-lg);
  background:linear-gradient(120deg,rgba(0,231,133,.10),rgba(79,195,255,.12));
  border:1px solid rgba(10,157,107,.16);
}
.tstat{text-align:center}
.tstat .v{font-size:26px;font-weight:800;color:var(--wati-deep);letter-spacing:-.6px;line-height:1.2}
.tstat .l{font-size:12.5px;color:var(--text-muted);margin-top:2px}

/* ===== Pain ===== */
.pain-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.pain-card{
  background:var(--bg);border:1px solid var(--border);border-left:4px solid var(--wati-green);
  border-radius:var(--radius);padding:24px;box-shadow:var(--shadow-sm);
  transition:transform .22s;
}
.pain-card:hover{transform:translateY(-4px)}
.pain-card .p-tag{
  display:inline-block;font-size:12px;font-weight:700;color:var(--wati-deep);
  background:var(--wati-green-tint);padding:3px 12px;border-radius:20px;margin-bottom:12px;
}
.pain-card h3{font-size:18px;font-weight:700;margin-bottom:8px}
.pain-card p{font-size:14.5px;color:var(--text-muted)}
.pain-card .p-src{font-size:11.5px;color:#9aa3ad;margin-top:12px}

/* ===== Features ===== */
.feat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.feat-card{
  background:var(--bg);border:1px solid var(--border);border-radius:var(--radius);
  padding:24px;box-shadow:var(--shadow-sm);transition:all .22s;position:relative;overflow:hidden;
}
.feat-card::before{
  content:"";position:absolute;top:0;left:0;right:0;height:3px;
  background:linear-gradient(90deg,var(--wati-green),var(--wati-blue));
  opacity:0;transition:opacity .22s;
}
.feat-card:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
.feat-card:hover::before{opacity:1}
.feat-ico{
  width:46px;height:46px;border-radius:12px;display:flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,var(--wati-green-tint),var(--wati-blue-tint));
  margin-bottom:14px;
}
.feat-ico svg{width:24px;height:24px;stroke:var(--wati-deep);fill:none;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.feat-card .f-tag{
  position:absolute;top:18px;right:18px;font-size:11.5px;font-weight:700;
  color:var(--wati-blue);background:var(--wati-blue-tint);padding:2px 10px;border-radius:14px;
}
.feat-card h3{font-size:17px;font-weight:700;margin-bottom:8px}
.feat-card p{font-size:13.8px;color:var(--text-muted);line-height:1.65}
.feat-card .f-metric{
  display:inline-block;margin-top:14px;font-size:13px;font-weight:700;color:var(--wati-deep);
  background:var(--wati-green-tint);padding:4px 12px;border-radius:18px;
}

/* ===== Flywheel ===== */
.fly-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:0;position:relative}
.fly-step{position:relative;padding:0 22px}
.fly-step:not(:last-child)::after{
  content:"";position:absolute;top:28px;right:-14px;width:28px;height:28px;
  border-top:3px solid var(--wati-green);border-right:3px solid var(--wati-green);
  transform:rotate(45deg);opacity:.55;
}
.fly-no{
  width:56px;height:56px;border-radius:50%;display:flex;align-items:center;justify-content:center;
  font-size:19px;font-weight:800;color:#fff;
  background:linear-gradient(135deg,var(--wati-deep),var(--wati-green));
  box-shadow:0 4px 14px rgba(0,231,133,.35);margin-bottom:16px;
}
.fly-step h3{font-size:18px;font-weight:700;margin-bottom:8px}
.fly-step .f-desc{font-size:14px;color:var(--text-muted);margin-bottom:12px}
.fly-step ul li{
  font-size:13.5px;color:var(--wati-deep);font-weight:600;
  padding:5px 0 5px 20px;position:relative;
}
.fly-step ul li::before{
  content:"✓";position:absolute;left:0;color:var(--wati-green);font-weight:800;
}

/* ===== Metrics ===== */
.kpi-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin-bottom:44px}
.kpi{
  background:var(--bg);border:1px solid var(--border);border-radius:var(--radius-lg);
  padding:28px 24px;text-align:center;box-shadow:var(--shadow-sm);
}
.kpi .k-val{
  font-size:clamp(34px,4.4vw,46px);font-weight:800;line-height:1;
  background:linear-gradient(120deg,var(--wati-deep),var(--wati-blue));
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.kpi .k-lbl{font-size:15px;font-weight:700;margin-top:12px}
.kpi .k-note{font-size:12.5px;color:var(--text-muted);margin-top:6px;line-height:1.5}
.kpi .k-src{font-size:11px;color:#9aa3ad;margin-top:10px}

/* 图表 */
.chart-card{
  background:var(--bg);border:1px solid var(--border);border-radius:var(--radius-lg);
  padding:32px;box-shadow:var(--shadow-sm);max-width:760px;margin:0 auto;
}
.chart-card h3{font-size:18px;font-weight:700;margin-bottom:24px}
.bar-row{display:flex;align-items:center;gap:14px;margin-bottom:16px}
.bar-row .b-lbl{width:110px;font-size:14px;font-weight:600;text-align:right;flex-shrink:0}
.bar-track{flex:1;height:26px;background:var(--bg-soft);border-radius:14px;overflow:hidden}
.bar-fill{
  height:100%;border-radius:14px;display:flex;align-items:center;
  justify-content:flex-end;padding-right:10px;
  font-size:13px;font-weight:800;color:#fff;min-width:52px;
  width:0;transition:width 1.1s cubic-bezier(.22,.8,.32,1);
}
.bar-fill.green{background:linear-gradient(90deg,var(--wati-deep),var(--wati-green))}
.bar-fill.grey{background:#b8c4c0}
.chart-note{font-size:12px;color:#9aa3ad;margin-top:16px}

.extra-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;max-width:980px;margin:34px auto 0}
.extra-item{
  background:var(--bg-soft);border:1px solid var(--border);border-radius:var(--radius);
  padding:18px;text-align:center;
}
.extra-item .e-val{font-size:22px;font-weight:800;color:var(--wati-deep)}
.extra-item .e-lbl{font-size:12.5px;color:var(--text-muted);margin-top:4px}

/* ===== Industries（8 行业实景卡） ===== */
.ind-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.ind-card{
  background:var(--bg);border:1px solid var(--border);border-radius:var(--radius-lg);
  padding:26px;box-shadow:var(--shadow-sm);display:flex;flex-direction:column;
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.ind-card:hover{transform:translateY(-3px);box-shadow:0 14px 34px rgba(10,157,107,.12);border-color:#c9e9db}
.ic-head{display:flex;align-items:center;gap:12px;margin-bottom:10px}
.ic-ico{font-size:26px;line-height:1;flex:none}
.ic-head h3{font-size:17px;font-weight:800;letter-spacing:-.2px}
.ic-desc{font-size:13.5px;color:var(--text-muted);line-height:1.7;margin-bottom:14px}
.ic-scen{display:grid;gap:7px;margin-bottom:16px}
.ic-scen li{
  font-size:13px;color:var(--text);line-height:1.55;padding-left:16px;position:relative;
}
.ic-scen li::before{
  content:"";position:absolute;left:0;top:7px;width:6px;height:6px;border-radius:50%;
  background:linear-gradient(135deg,var(--wati-deep),var(--wati-green));
}
.ic-kpis{display:flex;gap:8px;margin-top:auto}
.ic-kpis .k{
  flex:1;background:var(--bg-soft);border:1px solid var(--border);border-radius:11px;
  padding:9px 6px;text-align:center;
}
.ic-kpis .k b{display:block;font-size:16px;font-weight:800;color:var(--wati-deep);line-height:1.25}
.ic-kpis .k span{font-size:11px;color:var(--text-muted)}
.ic-proof{
  margin-top:14px;padding:13px 14px;border-radius:13px;
  background:linear-gradient(135deg,rgba(0,231,133,.07),rgba(79,195,255,.09));
  border:1px dashed rgba(10,157,107,.35);
}
.pf-lbl{font-size:10.5px;font-weight:800;letter-spacing:1.4px;color:var(--wati-deep);margin-bottom:4px}
.pf-client{font-size:12.5px;font-weight:700;color:var(--text)}
.pf-metric{font-size:12.5px;color:var(--text-muted);line-height:1.55;margin-top:2px}
.pf-link{display:inline-block;margin-top:6px;font-size:12px;font-weight:700;color:var(--wati-deep)}
.pf-link:hover{text-decoration:underline}
.ind-cta{
  background:linear-gradient(140deg,rgba(10,157,107,.07),rgba(79,195,255,.12));
  border:1px dashed rgba(10,157,107,.4);justify-content:center;
}
.ind-cta .ic-desc{margin-bottom:18px}
.ind-cta-btn{align-self:flex-start;margin-top:16px}
.ind-cta-note{margin-top:14px;color:var(--text-muted);font-size:12px;line-height:1.6}
@keyframes fadeUp{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:none}}

/* ===== Cases ===== */
.kpi-band{
  display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-bottom:26px;
  background:linear-gradient(120deg,rgba(10,157,107,.06),rgba(79,195,255,.08));
  border:1px solid var(--border);border-radius:var(--radius-lg);padding:20px 22px;
}
.kb-item{text-align:center;border-right:1px solid rgba(10,157,107,.14)}
.kb-item:last-child{border-right:none}
.kb-item .v{font-size:24px;font-weight:800;color:var(--wati-deep);letter-spacing:-.5px}
.kb-item .l{font-size:12.5px;color:var(--text-muted);margin-top:2px}
.case-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-bottom:44px}
.case-card{
  background:var(--bg);border:1px solid var(--border);border-radius:var(--radius-lg);
  padding:28px;box-shadow:var(--shadow-sm);display:flex;flex-direction:column;
}
.case-card .c-tag{
  align-self:flex-start;font-size:12px;font-weight:700;color:#fff;
  background:linear-gradient(120deg,var(--wati-deep),var(--wati-green));
  padding:4px 14px;border-radius:20px;margin-bottom:14px;
}
.case-card h3{font-size:17.5px;font-weight:700;margin-bottom:14px;line-height:1.4}
.case-card .c-block{margin-bottom:12px}
.case-card .c-lbl{font-size:12px;font-weight:800;letter-spacing:1px;color:var(--wati-blue);margin-bottom:4px}
.case-card .c-txt{font-size:13.5px;color:var(--text-muted);line-height:1.65}
.case-results{display:flex;gap:8px;margin-top:auto;padding-top:16px}
.case-results .cr{
  flex:1;background:var(--bg-soft);border:1px solid var(--border);border-radius:12px;
  padding:12px 6px;text-align:center;
}
.case-results .cr .v{font-size:16.5px;font-weight:800;color:var(--wati-deep);white-space:nowrap;letter-spacing:-.2px}
.case-results .cr .l{font-size:11px;color:var(--text-muted);margin-top:3px}
.case-card .c-note{font-size:11.5px;color:#9aa3ad;margin-top:12px}
.case-card .c-link{
  display:inline-block;margin-top:8px;font-size:12.5px;font-weight:700;color:var(--wati-deep);
}
.case-card .c-link:hover{text-decoration:underline}

/* ===== Contact · 服务范围卡 ===== */
.value-card{
  background:var(--bg-soft);border:1px solid var(--border);border-radius:var(--radius);
  padding:18px 20px;
}
.vc-title{font-size:13px;font-weight:800;color:var(--wati-deep);letter-spacing:.5px;margin-bottom:10px}
.vc-list li{
  position:relative;padding-left:20px;font-size:13px;color:var(--text-muted);
  line-height:1.6;margin-bottom:7px;
}
.vc-list li:last-child{margin-bottom:0}
.vc-list li::before{
  content:"✓";position:absolute;left:0;top:0;font-weight:800;color:var(--wati-deep);font-size:12px;
}

/* ===== CTA band ===== */.cta-band{
  display:grid;grid-template-columns:1.35fr .9fr;gap:28px;align-items:center;
  padding:34px 38px;border-radius:var(--radius-lg);
  background:linear-gradient(120deg,#0a9d6b,#00c47a 55%,#3fb8f5);
  color:#fff;box-shadow:0 18px 40px rgba(10,157,107,.22);
}
.cta-band h3{font-size:25px;font-weight:800;line-height:1.35;letter-spacing:-.3px}
.cta-band p{font-size:14.5px;line-height:1.75;opacity:.94;margin-top:10px;max-width:560px}
.cb-actions{display:flex;flex-wrap:wrap;gap:12px;justify-content:flex-end;align-items:center}
.cb-actions .btn{white-space:nowrap}
.cb-actions .btn-primary{
  background:#fff;color:var(--wati-deep);
  box-shadow:0 8px 22px rgba(0,0,0,.14);
}
.cb-actions .btn-primary:hover{background:#f2fffa;transform:translateY(-1px)}
.cb-actions .btn-ghost{background:rgba(255,255,255,.14);color:#fff;border:1px solid rgba(255,255,255,.55)}
.cb-actions .btn-ghost:hover{background:rgba(255,255,255,.24)}
.cb-note{flex-basis:100%;text-align:right;font-size:12px;opacity:.85;margin-top:2px}

/* 对比表 */
.compare-card{
  background:var(--bg);border:1px solid var(--border);border-radius:var(--radius-lg);
  overflow:hidden;box-shadow:var(--shadow-sm);
}
.compare-card table{width:100%;border-collapse:collapse;table-layout:fixed}
.compare-card th{
  background:var(--wati-green-tint);color:var(--wati-deep);font-size:14px;font-weight:700;
  text-align:left;padding:14px 18px;
}
.compare-card td{
  padding:13px 18px;border-top:1px solid var(--border);font-size:13.8px;vertical-align:top;
  line-height:1.55;word-break:break-word;
}
.compare-card td:first-child{font-weight:700;width:24%}
.compare-card tr:nth-child(even) td{background:var(--bg-soft)}
.compare-card .win{color:var(--wati-deep);font-weight:600}
.compare-note{font-size:12px;color:#9aa3ad;padding:12px 18px;background:var(--bg);border-top:1px solid var(--border)}

/* ===== FAQ ===== */
.faq-list{max-width:820px}
.faq-item{
  background:var(--bg);border:1px solid var(--border);border-radius:var(--radius);
  margin-bottom:12px;overflow:hidden;transition:box-shadow .2s;
}
.faq-item.open{box-shadow:var(--shadow-sm);border-color:var(--wati-green)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:14px;
  text-align:left;padding:18px 22px;font-size:16px;font-weight:700;color:var(--text);
}
.faq-q .arrow{
  flex-shrink:0;width:26px;height:26px;border-radius:50%;display:flex;align-items:center;justify-content:center;
  background:var(--wati-green-tint);color:var(--wati-deep);font-weight:800;font-size:15px;
  transition:transform .25s;
}
.faq-item.open .arrow{transform:rotate(45deg)}
.faq-a{
  max-height:0;overflow:hidden;transition:max-height .32s ease;
}
.faq-a-in{padding:0 22px 20px;font-size:14.5px;color:var(--text-muted);line-height:1.75}
.faq-a-in .mini-cta{
  display:inline-block;margin-top:12px;font-weight:700;color:var(--wati-deep);
  border-bottom:2px solid var(--wati-green);
}

/* ===== Contact ===== */
.contact-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:32px;align-items:start}
.contact-form-card{
  background:var(--bg);border:1px solid var(--border);border-radius:var(--radius-lg);
  padding:32px;box-shadow:var(--shadow);
}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.fgroup{margin-bottom:16px}
.fgroup label{display:block;font-size:13.5px;font-weight:700;margin-bottom:7px}
.fgroup label .req{color:#e05656}
.fgroup input,.fgroup select,.fgroup textarea{
  width:100%;font:inherit;font-size:14.5px;color:var(--text);
  background:var(--bg-soft);border:1.5px solid var(--border);border-radius:10px;
  padding:11px 14px;transition:border-color .2s;outline:none;
}
.fgroup input:focus,.fgroup select:focus,.fgroup textarea:focus{border-color:var(--wati-green);background:#fff}
.fgroup textarea{resize:vertical;min-height:96px}
.form-submit{width:100%;font-size:16px;padding:15px}
.form-privacy{font-size:12px;color:#9aa3ad;text-align:center;margin-top:12px}
.form-msg{
  display:none;margin-top:14px;padding:12px 16px;border-radius:10px;
  font-size:14px;font-weight:600;
}
.form-msg.ok{display:block;background:var(--wati-green-tint);color:var(--wati-deep)}
.form-msg.err{display:block;background:#fde8e8;color:#c0392b}

.contact-side{display:flex;flex-direction:column;gap:16px}
.chan-card{
  background:var(--bg);border:1px solid var(--border);border-radius:var(--radius);
  padding:18px 20px;display:flex;align-items:center;gap:14px;
}
.chan-card .c-ico{
  width:42px;height:42px;border-radius:11px;flex-shrink:0;
  display:flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,var(--wati-green-tint),var(--wati-blue-tint));
}
.chan-card .c-ico svg{width:21px;height:21px;stroke:var(--wati-deep);fill:none;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.chan-card .c-lbl{font-size:12.5px;color:var(--text-muted)}
.chan-card .c-val{font-size:15px;font-weight:700;margin-top:2px}
a.chan-card{text-decoration:none;color:inherit;transition:border-color .2s ease,transform .2s ease,box-shadow .2s ease}
a.chan-card:hover{border-color:var(--wati-green);transform:translateY(-2px);box-shadow:0 10px 24px rgba(10,157,107,.12)}
a.chan-card:hover .c-val{color:var(--wati-deep)}
.qr-card{
  background:linear-gradient(135deg,rgba(10,157,107,.06),rgba(79,195,255,.08));
  border:1.5px dashed var(--wati-green);border-radius:var(--radius);
  padding:22px;text-align:center;
}
.qr-card .qr-img{width:150px;height:150px;object-fit:contain;border-radius:12px;background:#fff;padding:6px;margin:0 auto 12px;display:block}
.qr-slot{
  width:132px;height:132px;margin:0 auto 12px;border-radius:14px;
  background:repeating-linear-gradient(45deg,#eef5f2 0 8px,#f8fbfa 8px 16px);
  border:1px solid var(--border);display:flex;align-items:center;justify-content:center;
  font-size:12px;color:#9aa3ad;
}
.qr-card .qr-note{font-size:13.5px;font-weight:700;color:var(--wati-deep)}

/* ===== Footer ===== */
.site-footer{background:#0f2a22;color:#cfe0d9;padding:56px 0 32px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:36px;margin-bottom:36px}
.footer-grid .fb-logo{height:36px;margin-bottom:16px}
.footer-grid .fb-blurb{font-size:13.5px;line-height:1.7;opacity:.85;max-width:360px}
.footer-grid h4{font-size:14px;font-weight:700;color:#fff;margin-bottom:14px;letter-spacing:1px}
.footer-grid ul li{margin-bottom:9px}
.footer-grid ul a{font-size:13.5px;opacity:.82;transition:opacity .18s}
.footer-grid ul a:hover{opacity:1;color:var(--wati-green)}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);padding-top:22px;
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  font-size:12.5px;opacity:.75;
}

/* ===== 滚动动画 =====
   隐藏态由 JS 添加 .pre（无 JS 环境内容始终可见，防止空白） */
.reveal.pre{opacity:0;transform:translateY(26px)}
.reveal{transition:opacity .7s ease,transform .7s ease}
.reveal.in{opacity:1;transform:none}

/* ===== 响应式 ===== */
@media (max-width:1024px){
  .feat-grid{grid-template-columns:repeat(2,1fr)}
  .fly-grid{grid-template-columns:repeat(2,1fr);gap:28px 0}
  .fly-step:nth-child(2)::after{display:none}
  .kpi-grid{grid-template-columns:repeat(2,1fr)}
  .ind-grid,.case-grid{grid-template-columns:repeat(2,1fr)}
  .contact-grid{grid-template-columns:1fr}
  .trust-grid{grid-template-columns:repeat(3,1fr)}
  .cta-band{grid-template-columns:1fr;gap:20px;padding:30px}
  .cb-actions{justify-content:flex-start}
  .cb-note{text-align:left}
}
@media (max-width:768px){
  .nav-links,.header-cta{display:none}
  .nav-toggle{display:flex}
  .nav-links.mobile-open{
    display:flex;flex-direction:column;position:absolute;top:var(--header-h);left:0;right:0;
    background:#fff;border-bottom:1px solid var(--border);box-shadow:0 12px 24px rgba(0,0,0,.08);
    padding:12px 20px 18px;gap:2px;
  }
  .nav-links.mobile-open a{padding:12px 14px;font-size:15px}
  section{padding:52px 0}
  .hero{padding:60px 0 68px}
  .hero-stats{grid-template-columns:repeat(2,1fr)}
  .pain-grid,.extra-grid{grid-template-columns:1fr}
  .ind-grid,.case-grid{grid-template-columns:1fr}
  .kpi-band{grid-template-columns:repeat(2,1fr);gap:16px 10px}
  .kb-item:nth-child(2){border-right:none}
  .fly-grid{grid-template-columns:1fr}
  .fly-step::after{display:none}
  .form-row{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .compare-card{overflow-x:auto}
  .compare-card table{min-width:560px}
  .cta-band h3{font-size:21px}
  .cb-actions{flex-direction:column;align-items:stretch}
  .cb-actions .btn{width:100%;text-align:center}
}
@media (max-width:480px){
  .feat-grid{grid-template-columns:1fr}
  .trust-grid{grid-template-columns:repeat(2,1fr)}
  .trust-stats{grid-template-columns:repeat(2,1fr);gap:14px}
  .kpi-grid{grid-template-columns:1fr}
  .case-results{flex-direction:column}
  .bar-row .b-lbl{width:82px;font-size:12.5px}
}