/* ==========================================================================
   悟言 CRM 官网样式 · 主题色：绿色
   ========================================================================== */

/* ---------- 变量 ---------- */
:root {
  --g-50:  #f0fdf4;
  --g-100: #dcfce7;
  --g-200: #bbf7d0;
  --g-300: #86efac;
  --g-400: #4ade80;
  --g-500: #22c55e;
  --g-600: #16a34a;
  --g-700: #15803d;
  --g-800: #166534;
  --g-900: #14532d;
  --deep:  #06291c;

  --ink:      #0f1f18;
  --ink-2:    #35463e;
  --ink-3:    #6b7d74;
  --line:     #e3ece7;
  --bg:       #ffffff;
  --bg-soft:  #f6faf7;

  --radius:   16px;
  --radius-sm: 10px;
  --shadow-sm: 0 2px 10px rgba(16, 60, 40, .06);
  --shadow-md: 0 12px 32px -12px rgba(16, 90, 55, .18);
  --shadow-lg: 0 30px 70px -28px rgba(12, 74, 45, .35);

  --container: 1200px;
  --header-h: 72px;

  --font: "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", "Helvetica Neue",
          Arial, "Noto Sans SC", system-ui, sans-serif;
}

/* ---------- 基础 ---------- */
*, *::before, *::after { box-sizing: border-box; }

html { scroll-behavior: smooth; scroll-padding-top: calc(var(--header-h) + 16px); }

body {
  margin: 0;
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.7;
  color: var(--ink-2);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}

img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
ul, ol { margin: 0; padding: 0; list-style: none; }
h1, h2, h3, h4 { margin: 0; color: var(--ink); line-height: 1.3; font-weight: 700; }
h1 { font-size: clamp(2rem, 1.2rem + 3.2vw, 3.35rem); letter-spacing: -.5px; }
h2 { font-size: clamp(1.5rem, 1.05rem + 1.7vw, 2.2rem); letter-spacing: -.3px; }
h3 { font-size: 1.15rem; }
p  { margin: 0; }
button { font-family: inherit; }

.container { width: 100%; max-width: var(--container); margin-inline: auto; padding-inline: 24px; }
.container.narrow { max-width: 860px; }

.section { padding: clamp(64px, 9vw, 110px) 0; }
.section-alt { background: var(--bg-soft); }

.text-grad {
  background: linear-gradient(100deg, var(--g-600), var(--g-400) 70%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

/* ---------- 按钮 ---------- */
.btn {
  --btn-py: 11px;
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: var(--btn-py) 22px;
  border: 1px solid transparent;
  border-radius: 999px;
  font-size: 15px; font-weight: 600;
  cursor: pointer;
  transition: transform .18s ease, box-shadow .22s ease, background .22s ease, color .22s ease, border-color .22s ease;
  white-space: nowrap;
}
.btn:hover { transform: translateY(-2px); }
.btn:active { transform: translateY(0); }

.btn-primary {
  background: linear-gradient(120deg, var(--g-600), var(--g-500));
  color: #fff;
  box-shadow: 0 10px 24px -10px rgba(22, 163, 74, .75);
}
.btn-primary:hover { box-shadow: 0 16px 30px -12px rgba(22, 163, 74, .85); }

.btn-outline { border-color: var(--g-300); color: var(--g-700); background: #fff; }
.btn-outline:hover { background: var(--g-50); border-color: var(--g-500); }

.btn-ghost { color: var(--ink-2); }
.btn-ghost:hover { color: var(--g-700); background: var(--g-50); }

.btn-white { background: #fff; color: var(--g-800); box-shadow: var(--shadow-md); }
.btn-outline-white { border-color: rgba(255,255,255,.6); color: #fff; }
.btn-outline-white:hover { background: rgba(255,255,255,.14); }

.btn-lg { --btn-py: 15px; font-size: 16px; padding-inline: 30px; }
.btn-block { width: 100%; }

/* ---------- 头部导航 ---------- */
.header {
  position: sticky; top: 0; z-index: 90;
  height: var(--header-h);
  background: rgba(255, 255, 255, .82);
  backdrop-filter: saturate(160%) blur(14px);
  border-bottom: 1px solid transparent;
  transition: border-color .25s ease, box-shadow .25s ease;
}
.header.is-stuck { border-bottom-color: var(--line); box-shadow: var(--shadow-sm); }

.nav-inner { height: var(--header-h); display: flex; align-items: center; gap: 28px; }

.brand { display: inline-flex; align-items: center; gap: 10px; font-size: 20px; font-weight: 800; color: var(--ink); }
.brand-mark { display: grid; place-items: center; color: #fff; background: linear-gradient(135deg, var(--g-600), var(--g-400)); border-radius: 9px; }
.brand-text em { font-style: normal; color: var(--g-600); margin-left: 2px; }
.brand.light { color: #fff; }
.brand.light .brand-text em { color: var(--g-300); }

.nav { display: flex; gap: 26px; margin-left: auto; }
.nav a {
  position: relative; font-size: 15px; font-weight: 500; color: var(--ink-2);
  padding: 6px 0;
  transition: color .2s ease;
}
.nav a::after {
  content: ""; position: absolute; left: 0; bottom: 0;
  width: 0; height: 2px; border-radius: 2px; background: var(--g-500);
  transition: width .25s ease;
}
.nav a:hover, .nav a.is-active { color: var(--g-700); }
.nav a:hover::after, .nav a.is-active::after { width: 100%; }

.nav-actions { display: flex; align-items: center; gap: 10px; }

.nav-toggle {
  display: none; width: 42px; height: 42px;
  background: var(--g-50); border: 1px solid var(--line); border-radius: 11px;
  cursor: pointer; padding: 0; place-items: center;
  flex-direction: column; gap: 4px;
}
.nav-toggle span { display: block; width: 18px; height: 2px; border-radius: 2px; background: var(--g-700); transition: .25s ease; }
.nav-toggle.is-open span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.nav-toggle.is-open span:nth-child(2) { opacity: 0; }
.nav-toggle.is-open span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

/* ---------- Hero ---------- */
.hero { position: relative; overflow: hidden; padding: clamp(56px, 7vw, 96px) 0 clamp(40px, 5vw, 64px); background: linear-gradient(180deg, var(--g-50) 0%, #fff 62%); }
.hero-bg { position: absolute; inset: 0; pointer-events: none; }
.blob { position: absolute; border-radius: 50%; filter: blur(70px); opacity: .55; }
.blob-a { width: 480px; height: 480px; top: -160px; right: -120px; background: radial-gradient(circle, var(--g-300), transparent 70%); }
.blob-b { width: 420px; height: 420px; bottom: -180px; left: -140px; background: radial-gradient(circle, #d1fae5, transparent 70%); }
.grid-mask {
  position: absolute; inset: 0;
  background-image: linear-gradient(rgba(22,163,74,.07) 1px, transparent 1px),
                    linear-gradient(90deg, rgba(22,163,74,.07) 1px, transparent 1px);
  background-size: 46px 46px;
  mask-image: radial-gradient(ellipse 80% 60% at 50% 0%, #000 40%, transparent 75%);
  -webkit-mask-image: radial-gradient(ellipse 80% 60% at 50% 0%, #000 40%, transparent 75%);
}

.hero-inner { position: relative; display: grid; grid-template-columns: 1.03fr .97fr; gap: 56px; align-items: center; }

.badge {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 7px 14px; border-radius: 999px;
  background: #fff; border: 1px solid var(--g-200); color: var(--g-800);
  font-size: 13.5px; font-weight: 600; box-shadow: var(--shadow-sm);
}
.badge .dot { width: 7px; height: 7px; border-radius: 50%; background: var(--g-500); box-shadow: 0 0 0 4px rgba(34,197,94,.18); }

.hero-copy h1 { margin: 18px 0 16px; }
.lead { font-size: clamp(1rem, .95rem + .3vw, 1.12rem); color: var(--ink-3); max-width: 540px; }

.hero-cta { display: flex; flex-wrap: wrap; gap: 14px; margin: 30px 0 22px; }

.hero-points { display: flex; flex-wrap: wrap; gap: 8px 22px; }
.hero-points li { position: relative; padding-left: 22px; font-size: 14px; color: var(--ink-3); }
.hero-points li::before {
  content: ""; position: absolute; left: 0; top: 6px; width: 14px; height: 14px; border-radius: 50%;
  background: var(--g-100);
  box-shadow: inset 0 0 0 2px var(--g-500);
}

/* 浏览器窗体 */
.hero-media { position: relative; }
.browser {
  border-radius: var(--radius);
  background: #fff;
  border: 1px solid var(--line);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
}
.browser-bar { display: flex; align-items: center; gap: 14px; padding: 11px 16px; border-bottom: 1px solid var(--line); background: #fbfdfb; }
.browser-bar span { display: flex; gap: 6px; }
.browser-bar i { width: 10px; height: 10px; border-radius: 50%; background: #e5ece8; }
.browser-bar i:first-child { background: var(--g-300); }
.browser-bar em { font-style: normal; font-size: 12.5px; color: var(--ink-3); }
.browser img { width: 100%; aspect-ratio: 16 / 9; object-fit: cover; }

.float-card {
  position: absolute; display: flex; align-items: center; gap: 11px;
  padding: 12px 16px; border-radius: 14px; background: #fff;
  border: 1px solid var(--line); box-shadow: var(--shadow-md);
  animation: bob 5s ease-in-out infinite;
}
.float-card strong { display: block; font-size: 18px; color: var(--g-700); line-height: 1.2; }
.float-card small { font-size: 12.5px; color: var(--ink-3); }
.fc-icon { display: grid; place-items: center; width: 38px; height: 38px; border-radius: 11px; background: var(--g-50); color: var(--g-600); }
.fc-1 { left: -26px; top: 16%; }
.fc-2 { right: -18px; bottom: 12%; animation-delay: 1.4s; }
@keyframes bob { 0%,100% { transform: translateY(0); } 50% { transform: translateY(-10px); } }

/* 统计 */
.stats { position: relative; margin-top: clamp(52px, 6vw, 76px); display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; padding: 26px 30px; border-radius: var(--radius); background: #fff; border: 1px solid var(--line); box-shadow: var(--shadow-md); }
.stat strong { font-size: clamp(1.6rem, 1.2rem + 1.3vw, 2.3rem); font-weight: 800; color: var(--g-700); }
.stat span { display: block; font-size: 14px; color: var(--ink-3); }

/* ---------- 客户信任 ---------- */
.trust { padding: 42px 0 8px; }
.trust-title { text-align: center; font-size: 13.5px; letter-spacing: .5px; color: var(--ink-3); }
.trust-logos { margin-top: 18px; display: flex; flex-wrap: wrap; justify-content: center; gap: 14px 38px; }
.trust-logos span { font-size: 17px; font-weight: 700; color: #a9bcb1; filter: grayscale(1); transition: color .25s ease; }
.trust-logos span:hover { color: var(--g-600); }

/* ---------- 区块标题 ---------- */
.section-head { max-width: 680px; margin: 0 auto clamp(38px, 5vw, 58px); text-align: center; }
.eyebrow {
  display: inline-block; margin-bottom: 12px; padding: 5px 13px; border-radius: 999px;
  background: var(--g-100); color: var(--g-800); font-size: 12.5px; font-weight: 700; letter-spacing: .4px;
}
.eyebrow.light { background: rgba(255,255,255,.16); color: var(--g-200); }
.section-head h2 { margin-bottom: 12px; }
.section-head p { color: var(--ink-3); }
.section-head.on-dark h2 { color: #fff; }
.section-head.on-dark p { color: rgba(255,255,255,.72); }

/* ---------- 栅格 ---------- */
.grid { display: grid; gap: 24px; }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }

/* ---------- 功能卡 ---------- */
.feature {
  padding: 32px 28px; border-radius: var(--radius); background: #fff;
  border: 1px solid var(--line); box-shadow: var(--shadow-sm);
  transition: transform .28s ease, box-shadow .28s ease, border-color .28s ease;
}
.feature:hover { transform: translateY(-7px); border-color: var(--g-200); box-shadow: var(--shadow-lg); }
.feature-icon {
  display: grid; place-items: center; width: 52px; height: 52px; margin-bottom: 18px;
  border-radius: 14px; color: var(--g-700); background: var(--g-50); border: 1px solid var(--g-100);
  transition: .28s ease;
}
.feature-icon svg { width: 26px; height: 26px; }
.feature:hover .feature-icon { background: linear-gradient(135deg, var(--g-600), var(--g-400)); color: #fff; border-color: transparent; }
.feature h3 { margin-bottom: 10px; }
.feature p { font-size: 15px; color: var(--ink-3); }
.mini { margin-top: 16px; display: flex; flex-wrap: wrap; gap: 8px; }
.mini li { padding: 4px 10px; border-radius: 7px; background: var(--bg-soft); border: 1px solid var(--line); font-size: 12.5px; color: var(--ink-2); }

/* ---------- Showcase ---------- */
.showcase { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(36px, 5vw, 72px); align-items: center; }
.showcase-media { position: relative; }
.showcase-media img { width: 100%; border-radius: var(--radius); box-shadow: var(--shadow-lg); aspect-ratio: 4 / 3; object-fit: cover; }
.pill-note {
  position: absolute; left: 22px; bottom: 22px; padding: 8px 16px; border-radius: 999px;
  background: rgba(255,255,255,.92); color: var(--g-700); font-size: 13.5px; font-weight: 700;
  box-shadow: var(--shadow-md); backdrop-filter: blur(6px);
}
.showcase-copy h2 { margin: 12px 0 14px; }
.showcase-copy > p { color: var(--ink-3); margin-bottom: 22px; }

.accordion { margin-bottom: 26px; border-top: 1px solid var(--line); }
.acc-item {
  display: block; width: 100%; text-align: left; cursor: pointer;
  padding: 16px 4px; background: none; border: 0; border-bottom: 1px solid var(--line);
  transition: background .2s ease, padding-left .2s ease;
}
.acc-item:hover { background: rgba(22,163,74,.035); padding-left: 10px; }
.acc-q { display: block; font-size: 15.5px; font-weight: 700; color: var(--ink); }
.acc-a { display: block; margin-top: 6px; font-size: 14.5px; color: var(--ink-3); }
.acc-item.is-active { border-bottom-color: var(--g-300); }
.acc-item.is-active .acc-q { color: var(--g-700); }
.acc-item.is-active .acc-q::before { content: "▸ "; color: var(--g-500); }

/* ---------- 行业方案 ---------- */
.solution { overflow: hidden; border-radius: var(--radius); background: #fff; border: 1px solid var(--line); box-shadow: var(--shadow-sm); transition: transform .28s ease, box-shadow .28s ease; }
.solution:hover { transform: translateY(-7px); box-shadow: var(--shadow-lg); }
.solution-img { overflow: hidden; }
.solution-img img { width: 100%; aspect-ratio: 16 / 10; object-fit: cover; transition: transform .55s ease; }
.solution:hover .solution-img img { transform: scale(1.07); }
.solution-body { padding: 26px; }
.solution-body h3 { margin-bottom: 8px; }
.solution-body > p { font-size: 15px; color: var(--ink-3); }
.ticks { margin: 16px 0 18px; display: grid; gap: 8px; }
.ticks li { position: relative; padding-left: 24px; font-size: 14.5px; color: var(--ink-2); }
.ticks li::before {
  content: "✓"; position: absolute; left: 0; top: -1px; width: 17px; height: 17px;
  display: grid; place-items: center; border-radius: 50%; background: var(--g-100); color: var(--g-700); font-size: 11px; font-weight: 800;
}
.link-arrow { font-size: 14.5px; font-weight: 700; color: var(--g-700); }
.link-arrow span { display: inline-block; transition: transform .22s ease; }
.link-arrow:hover span { transform: translateX(5px); }

/* ---------- 深色流程 ---------- */
.section-dark { background: linear-gradient(150deg, var(--deep), var(--g-900) 60%, #0b3d2c); position: relative; overflow: hidden; }
.section-dark::after {
  content: ""; position: absolute; inset: 0;
  background: radial-gradient(600px 260px at 85% 10%, rgba(74,222,128,.22), transparent 70%);
}
.steps { position: relative; z-index: 1; display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; counter-reset: step; }
.steps li { position: relative; padding: 28px 24px; border-radius: var(--radius); background: rgba(255,255,255,.055); border: 1px solid rgba(255,255,255,.12); backdrop-filter: blur(4px); transition: .3s ease; }
.steps li:hover { background: rgba(255,255,255,.1); transform: translateY(-6px); }
.step-no { display: block; font-size: 30px; font-weight: 800; color: var(--g-400); letter-spacing: 1px; margin-bottom: 10px; }
.steps h4 { color: #fff; font-size: 17px; margin-bottom: 8px; }
.steps p { font-size: 14.5px; color: rgba(255,255,255,.72); }

/* ---------- 价格 ---------- */
.price-switch { display: flex; justify-content: center; gap: 6px; margin-bottom: 36px; }
.price-switch button {
  padding: 10px 22px; border-radius: 999px; cursor: pointer; font-size: 14.5px; font-weight: 600;
  background: #fff; border: 1px solid var(--line); color: var(--ink-2); transition: .22s ease;
}
.price-switch button em { font-style: normal; margin-left: 6px; font-size: 12px; color: var(--g-600); font-weight: 700; }
.price-switch button.is-active { background: var(--g-600); border-color: var(--g-600); color: #fff; box-shadow: var(--shadow-md); }
.price-switch button.is-active em { color: var(--g-200); }

.pricing { align-items: start; }
.plan { position: relative; padding: 34px 30px; border-radius: var(--radius); background: #fff; border: 1px solid var(--line); box-shadow: var(--shadow-sm); transition: .28s ease; }
.plan:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }
.plan h3 { font-size: 19px; }
.plan-desc { margin-top: 6px; font-size: 14px; color: var(--ink-3); }
.plan-price { margin: 22px 0 24px; display: flex; align-items: baseline; gap: 3px; }
.plan-price .cur { font-size: 20px; font-weight: 700; color: var(--g-700); }
.plan-price strong { font-size: 44px; font-weight: 800; color: var(--ink); letter-spacing: -1px; line-height: 1; }
.plan-price .per { font-size: 14px; color: var(--ink-3); margin-left: 4px; }
.plan-price .custom { font-size: 34px; }
.plan-list { display: grid; gap: 11px; margin-bottom: 26px; }
.plan-list li { position: relative; padding-left: 26px; font-size: 14.5px; color: var(--ink-2); }
.plan-list li::before {
  content: "✓"; position: absolute; left: 0; top: 2px; width: 18px; height: 18px; display: grid; place-items: center;
  border-radius: 50%; background: var(--g-600); color: #fff; font-size: 11px; font-weight: 800;
}
.plan-featured { border-color: var(--g-500); box-shadow: 0 24px 54px -22px rgba(22,163,74,.45); }
.ribbon {
  position: absolute; top: -13px; left: 50%; transform: translateX(-50%);
  padding: 5px 16px; border-radius: 999px; font-size: 12.5px; font-weight: 700; color: #fff;
  background: linear-gradient(120deg, var(--g-600), var(--g-400)); box-shadow: var(--shadow-md); white-space: nowrap;
}

/* ---------- 评价 ---------- */
.quote { margin: 0; padding: 30px; border-radius: var(--radius); background: #fff; border: 1px solid var(--line); box-shadow: var(--shadow-sm); transition: .28s ease; }
.quote:hover { transform: translateY(-6px); box-shadow: var(--shadow-md); }
.stars { color: #f5b301; letter-spacing: 2px; margin-bottom: 12px; }
.quote > p { font-size: 15.5px; color: var(--ink-2); }
.quote footer { margin-top: 20px; display: flex; align-items: center; gap: 12px; }
.avatar { display: grid; place-items: center; width: 42px; height: 42px; border-radius: 50%; background: linear-gradient(135deg, var(--g-600), var(--g-400)); color: #fff; font-weight: 700; }
.quote footer strong { display: block; font-size: 15px; color: var(--ink); }
.quote footer small { font-size: 13px; color: var(--ink-3); }

/* ---------- 关于我们 ---------- */
.about-inner { display: grid; grid-template-columns: .95fr 1.05fr; gap: clamp(36px, 5vw, 70px); align-items: center; }
.about-media img { width: 100%; border-radius: var(--radius); box-shadow: var(--shadow-lg); aspect-ratio: 4 / 3; object-fit: cover; }
.about-copy h2 { margin: 12px 0 14px; }
.about-copy p { color: var(--ink-3); margin-bottom: 12px; }
.about-list { margin-top: 22px; gap: 16px; }
.about-list li { padding: 18px 20px; border-radius: var(--radius-sm); background: var(--bg-soft); border: 1px solid var(--line); }
.about-list strong { display: block; color: var(--g-700); font-size: 15.5px; margin-bottom: 3px; }
.about-list span { font-size: 14px; color: var(--ink-3); }

/* ---------- FAQ ---------- */
.faq details { border-bottom: 1px solid var(--line); }
.faq summary {
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
  padding: 19px 4px; cursor: pointer; list-style: none;
  font-size: 16.5px; font-weight: 700; color: var(--ink);
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary i { position: relative; flex: none; width: 24px; height: 24px; }
.faq summary i::before, .faq summary i::after {
  content: ""; position: absolute; left: 50%; top: 50%; background: var(--g-600); border-radius: 2px;
  transform: translate(-50%, -50%); transition: .28s ease;
}
.faq summary i::before { width: 13px; height: 2px; }
.faq summary i::after { width: 2px; height: 13px; }
.faq details[open] summary { color: var(--g-700); }
.faq details[open] summary i::after { transform: translate(-50%, -50%) rotate(90deg); opacity: 0; }
.faq p { padding: 0 4px 20px; font-size: 15px; color: var(--ink-3); max-width: 720px; }

/* ---------- 联系我们 ---------- */
.contact { background: linear-gradient(160deg, var(--deep) 0%, var(--g-900) 48%, var(--g-800) 100%); position: relative; overflow: hidden; }
.contact::before {
  content: ""; position: absolute; inset: 0;
  background: radial-gradient(720px 320px at 12% 18%, rgba(74,222,128,.28), transparent 68%);
}
.contact-inner { position: relative; z-index: 1; display: grid; grid-template-columns: 1fr 1fr; gap: clamp(36px, 5vw, 70px); align-items: center; }
.contact-info h2 { color: #fff; margin: 12px 0 14px; }
.contact-info > p { color: rgba(255,255,255,.75); }
.contact-list { margin-top: 32px; display: grid; gap: 18px; }
.contact-list li { display: flex; gap: 15px; align-items: flex-start; padding: 18px 20px; border-radius: var(--radius-sm); background: rgba(255,255,255,.07); border: 1px solid rgba(255,255,255,.14); transition: .25s ease; }
.contact-list li:hover { background: rgba(255,255,255,.12); transform: translateX(5px); }
.ci-icon { display: grid; place-items: center; flex: none; width: 44px; height: 44px; border-radius: 12px; background: rgba(74,222,128,.18); color: var(--g-300); }
.contact-list small { display: block; font-size: 12.5px; color: rgba(255,255,255,.6); }
.contact-list a, .ci-text { display: block; font-size: 19px; font-weight: 700; color: #fff; margin: 2px 0; word-break: break-all; }
.contact-list a:hover { color: var(--g-300); }
.contact-list em { font-style: normal; font-size: 13px; color: rgba(255,255,255,.55); }

.contact-form { padding: clamp(26px, 3vw, 38px); border-radius: var(--radius); background: #fff; box-shadow: var(--shadow-lg); }
.contact-form h3 { font-size: 20px; margin-bottom: 20px; }
.field { margin-bottom: 16px; }
.field-row { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.field label { display: block; font-size: 13.5px; font-weight: 600; color: var(--ink-2); margin-bottom: 6px; }
.field label span { color: #e05252; }
.field input, .field select, .field textarea {
  width: 100%; padding: 11px 14px; font-family: inherit; font-size: 15px; color: var(--ink);
  background: var(--bg-soft); border: 1px solid var(--line); border-radius: var(--radius-sm);
  transition: .2s ease;
}
.field textarea { resize: vertical; min-height: 78px; }
.field input:focus, .field select:focus, .field textarea:focus {
  outline: none; background: #fff; border-color: var(--g-500); box-shadow: 0 0 0 3px rgba(34,197,94,.16);
}
.field input.is-error, .field textarea.is-error { border-color: #e05252; box-shadow: 0 0 0 3px rgba(224,82,82,.13); }
.form-tip { margin-top: 12px; font-size: 12.5px; color: var(--ink-3); text-align: center; }
.form-status { margin: 12px 0 0; font-size: 14px; font-weight: 600; text-align: center; min-height: 20px; }
.form-status.ok { color: var(--g-700); }
.form-status.err { color: #d94b4b; }

/* ---------- CTA band ---------- */
.cta-band { padding: clamp(52px, 6vw, 76px) 0; background: linear-gradient(110deg, var(--g-700), var(--g-500)); }
.cta-inner { text-align: center; }
.cta-band h2 { color: #fff; }
.cta-band p { margin: 12px 0 26px; color: rgba(255,255,255,.85); font-size: 17px; }
.cta-actions { display: flex; flex-wrap: wrap; justify-content: center; gap: 14px; }

/* ---------- 页脚 ---------- */
.footer { background: #0a1a13; color: rgba(255,255,255,.7); padding-top: clamp(48px, 6vw, 72px); }
.footer-grid { display: grid; grid-template-columns: 1.6fr repeat(3, 1fr); gap: 40px; padding-bottom: 44px; }
.footer-brand p { margin: 16px 0 14px; font-size: 14.5px; color: rgba(255,255,255,.6); }
.footer-contact { display: grid; gap: 6px; }
.footer-contact a { font-size: 14.5px; color: var(--g-300); }
.footer-contact a:hover { color: #fff; }
.footer-col h4 { color: #fff; font-size: 15px; margin-bottom: 16px; }
.footer-col a { display: block; font-size: 14.5px; margin-bottom: 11px; color: rgba(255,255,255,.62); transition: .2s ease; }
.footer-col a:hover { color: var(--g-300); transform: translateX(3px); }
.footer-bottom { border-top: 1px solid rgba(255,255,255,.1); padding: 20px 0; font-size: 13px; color: rgba(255,255,255,.45); }
.footer-bottom-inner { display: flex; flex-wrap: wrap; gap: 10px; justify-content: space-between; }
.footer-links a { margin-left: 20px; }
.footer-links a:hover { color: var(--g-300); }

/* ---------- 悬浮元素 ---------- */
.float-cta {
  position: fixed; right: 22px; bottom: 90px; z-index: 80;
  display: inline-flex; align-items: center; gap: 8px;
  padding: 12px 18px; border-radius: 999px; font-size: 14.5px; font-weight: 700; color: #fff;
  background: linear-gradient(120deg, var(--g-700), var(--g-500));
  box-shadow: 0 16px 34px -12px rgba(21,128,61,.8);
  transition: transform .22s ease, box-shadow .22s ease;
}
.float-cta:hover { transform: translateY(-3px) scale(1.03); }
.to-top {
  position: fixed; right: 26px; bottom: 30px; z-index: 80;
  width: 44px; height: 44px; border-radius: 50%; cursor: pointer;
  border: 1px solid var(--line); background: #fff; color: var(--g-700); font-size: 18px;
  box-shadow: var(--shadow-md);
  opacity: 0; visibility: hidden; transform: translateY(12px);
  transition: .28s ease;
}
.to-top.is-show { opacity: 1; visibility: visible; transform: translateY(0); }
.to-top:hover { background: var(--g-600); color: #fff; border-color: var(--g-600); }

/* ---------- 滚动动效 ---------- */
.reveal { opacity: 0; transform: translateY(26px); transition: opacity .7s ease, transform .7s ease; }
.reveal.is-in { opacity: 1; transform: none; }
.delay-1 { transition-delay: .1s; }
.delay-2 { transition-delay: .2s; }
.delay-3 { transition-delay: .3s; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
  .float-card { animation: none; }
}

/* ==========================================================================
   响应式
   ========================================================================== */
@media (max-width: 1100px) {
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .steps { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr 1fr; }
  .footer-brand { grid-column: 1 / -1; }
}

@media (max-width: 900px) {
  .nav {
    position: fixed; inset: var(--header-h) 0 auto;
    flex-direction: column; gap: 0; margin: 0; padding: 10px 24px 22px;
    background: #fff; border-bottom: 1px solid var(--line);
    box-shadow: var(--shadow-md);
    transform: translateY(-12px); opacity: 0; visibility: hidden;
    transition: .25s ease;
  }
  .nav.is-open { transform: none; opacity: 1; visibility: visible; }
  .nav a { padding: 14px 2px; border-bottom: 1px dashed var(--line); font-size: 16px; }
  .nav a::after { display: none; }
  .nav-toggle { display: flex; }
  .nav-actions .btn-ghost { display: none; }
  .nav-actions .btn-primary { padding: 9px 16px; font-size: 14px; }

  .hero-inner, .showcase, .about-inner, .contact-inner { grid-template-columns: 1fr; }
  .hero-media { margin-top: 18px; }
  .fc-1 { left: 8px; }
  .fc-2 { right: 8px; }
  .stats { grid-template-columns: repeat(2, 1fr); }
  .showcase-copy { order: -1; }
}

@media (max-width: 640px) {
  :root { --header-h: 64px; }
  .grid-3, .grid-2, .pricing, .field-row { grid-template-columns: 1fr; }
  .steps { grid-template-columns: 1fr; }
  .container { padding-inline: 18px; }
  .hero-cta .btn { width: 100%; }
  .float-card { padding: 9px 12px; }
  .float-card strong { font-size: 15px; }
  .float-card small { font-size: 11px; }
  .fc-1 { top: auto; bottom: -18px; }
  .fc-2 { top: -18px; bottom: auto; }
  .float-cta { padding: 12px; right: 14px; bottom: 84px; }
  .float-cta span, .float-cta { font-size: 0; }
  .float-cta svg { width: 24px; height: 24px; }
  .to-top { right: 18px; }
  .footer-links a { margin-left: 0; margin-right: 16px; }
  .plan-price strong { font-size: 38px; }
}