/* ============ 三明青柚文化传媒 官网样式 ============ */
:root {
  --green-900: #0F2A1E;
  --green-700: #14562F;
  --green-600: #1F7A4D;
  --green-500: #2E9E5B;
  --green-400: #46B871;
  --lime-300: #C6E377;
  --lime-100: #EAF6DC;
  --bg: #FFFFFF;
  --bg-soft: #F6FAF4;
  --text: #16241C;
  --text-muted: #5C6B62;
  --line: #E4EDE5;
  --radius: 16px;
  --radius-sm: 10px;
  --shadow: 0 10px 30px rgba(20, 60, 40, 0.08);
  --shadow-lg: 0 20px 50px rgba(20, 60, 40, 0.14);
  --maxw: 1160px;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 84px; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
.container { max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }

/* ============ 按钮 ============ */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  gap: 8px; padding: 13px 26px; border-radius: 999px;
  font-size: 15px; font-weight: 600; cursor: pointer; border: 1px solid transparent;
  transition: transform .25s var(--ease), box-shadow .25s var(--ease), background .25s, color .25s;
  white-space: nowrap;
}
.btn--primary { background: var(--green-500); color: #fff; box-shadow: 0 8px 20px rgba(46,158,91,.28); }
.btn--primary:hover { background: var(--green-600); transform: translateY(-2px); box-shadow: 0 12px 26px rgba(46,158,91,.34); }
.btn--ghost { background: rgba(255,255,255,.12); color: #fff; border-color: rgba(255,255,255,.5); }
.btn--ghost:hover { background: rgba(255,255,255,.22); transform: translateY(-2px); }
.btn--sm { padding: 9px 18px; font-size: 14px; }
.btn--block { width: 100%; }

/* ============ 导航 ============ */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 50;
  background: rgba(255,255,255,0); transition: background .3s, box-shadow .3s, padding .3s;
  padding: 18px 0;
}
.nav.is-scrolled { background: rgba(255,255,255,.92); backdrop-filter: blur(10px); box-shadow: 0 4px 20px rgba(20,60,40,.07); padding: 12px 0; }
.nav__inner { display: flex; align-items: center; justify-content: space-between; }
.brand { display: inline-flex; align-items: center; gap: 11px; }
.brand__mark { flex: 0 0 auto; }
.brand__text { display: flex; flex-direction: column; font-weight: 800; font-size: 18px; color: #fff; line-height: 1.15; letter-spacing: .5px; }
.brand__text small { font-size: 11px; font-weight: 500; color: rgba(255,255,255,.78); letter-spacing: 1px; }
.nav.is-scrolled .brand__text { color: var(--text); }
.nav.is-scrolled .brand__text small { color: var(--text-muted); }
.nav__links { display: flex; align-items: center; gap: 28px; }
.nav__links a { font-size: 15px; font-weight: 500; color: rgba(255,255,255,.92); transition: color .2s; }
.nav.is-scrolled .nav__links a { color: var(--text); }
.nav__links a:hover { color: var(--green-500); }
.nav__toggle { display: none; flex-direction: column; gap: 5px; background: none; border: 0; cursor: pointer; padding: 6px; }
.nav__toggle span { width: 24px; height: 2px; background: #fff; border-radius: 2px; transition: .3s; }
.nav.is-scrolled .nav__toggle span { background: var(--text); }

/* ============ Hero ============ */
.hero { position: relative; min-height: 100vh; display: flex; align-items: center; overflow: hidden; color: #fff; }
.hero__bg {
  position: absolute; inset: 0; z-index: 0;
  background:
    radial-gradient(900px 600px at 78% 18%, rgba(70,184,113,.45), transparent 60%),
    radial-gradient(700px 500px at 10% 90%, rgba(46,158,91,.5), transparent 60%),
    linear-gradient(135deg, #0F2A1E 0%, #14562F 55%, #1F7A4D 100%);
}
.hero__bg::after {
  content: ""; position: absolute; inset: 0;
  background-image: radial-gradient(rgba(255,255,255,.06) 1px, transparent 1px);
  background-size: 26px 26px; opacity: .6;
}
.hero__inner { position: relative; z-index: 1; padding-top: 80px; }
.hero__content { max-width: 760px; }
.hero__badge { display: inline-block; padding: 7px 16px; border-radius: 999px; background: rgba(255,255,255,.14); border: 1px solid rgba(255,255,255,.25); font-size: 14px; letter-spacing: .5px; margin-bottom: 22px; }
.hero__title { font-size: clamp(34px, 5.5vw, 60px); line-height: 1.14; font-weight: 800; letter-spacing: 1px; }
.hero__sub { margin: 22px 0 32px; font-size: clamp(15px, 1.8vw, 18px); color: rgba(255,255,255,.88); max-width: 620px; }
.hero__actions { display: flex; flex-wrap: wrap; gap: 14px; }
.hero__tags { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 36px; }
.hero__tags li { font-size: 13.5px; padding: 7px 14px; border-radius: 8px; background: rgba(255,255,255,.1); border: 1px solid rgba(255,255,255,.2); }
.hero__scroll { position: absolute; left: 50%; bottom: 26px; transform: translateX(-50%); width: 26px; height: 42px; border: 2px solid rgba(255,255,255,.6); border-radius: 14px; z-index: 1; }
.hero__scroll span { position: absolute; left: 50%; top: 8px; width: 4px; height: 8px; background: #fff; border-radius: 2px; transform: translateX(-50%); animation: scrollDot 1.6s infinite; }
@keyframes scrollDot { 0% { opacity: 0; top: 8px; } 40% { opacity: 1; } 80% { opacity: 0; top: 22px; } 100% { opacity: 0; } }

/* ============ 通用区块 ============ */
.section { padding: 96px 0; }
.section--soft { background: var(--bg-soft); }
.section__head { text-align: center; max-width: 720px; margin: 0 auto 56px; }
.eyebrow { display: inline-block; font-size: 13px; font-weight: 700; letter-spacing: 2px; color: var(--green-500); text-transform: uppercase; margin-bottom: 12px; }
.section__title { font-size: clamp(26px, 3.4vw, 38px); font-weight: 800; color: var(--text); letter-spacing: .5px; }
.section__lead { margin-top: 14px; color: var(--text-muted); font-size: 16px; }
.section__head--light .section__title, .section__head--light .section__lead { color: #fff; }
.section__head--light .section__lead { color: rgba(255,255,255,.8); }

/* ============ 关于 ============ */
.about { display: grid; grid-template-columns: 1.4fr 1fr; gap: 48px; align-items: stretch; }
.about__text p { color: var(--text-muted); margin-bottom: 16px; font-size: 16px; }
.about__text strong { color: var(--text); font-weight: 700; }
.about__points { margin-top: 26px; display: grid; gap: 16px; }
.point { display: flex; gap: 16px; align-items: flex-start; }
.point__num { font-size: 20px; font-weight: 800; color: var(--green-500); flex: 0 0 auto; line-height: 1.4; }
.point h4 { font-size: 16px; }
.point p { font-size: 14.5px; margin: 2px 0 0; }
.about__card { background: linear-gradient(160deg, #14562F, #1F7A4D); color: #fff; border-radius: var(--radius); padding: 32px; box-shadow: var(--shadow-lg); display: flex; flex-direction: column; }
.about__card-top h3 { font-size: 22px; }
.about__card-top p { color: rgba(255,255,255,.8); font-size: 14px; margin-top: 6px; }
.about__list { margin-top: 22px; display: grid; gap: 14px; }
.about__list li { display: flex; align-items: center; gap: 12px; font-size: 15px; }
.dot { width: 8px; height: 8px; border-radius: 50%; background: var(--lime-300); flex: 0 0 auto; }

/* ============ 业务卡片 ============ */
.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 30px 26px; box-shadow: var(--shadow); transition: transform .3s var(--ease), box-shadow .3s, border-color .3s; }
.card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); border-color: var(--lime-300); }
.card__icon { width: 54px; height: 54px; border-radius: 14px; display: flex; align-items: center; justify-content: center; background: var(--lime-100); color: var(--green-600); margin-bottom: 18px; }
.card h3 { font-size: 18px; margin-bottom: 10px; }
.card p { color: var(--text-muted); font-size: 14.5px; }
.card__list { margin-top: 16px; display: grid; gap: 8px; }
.card__list li { position: relative; padding-left: 18px; font-size: 13.5px; color: var(--text); }
.card__list li::before { content: ""; position: absolute; left: 0; top: 9px; width: 7px; height: 7px; border-radius: 50%; background: var(--green-400); }

/* ============ 优势 ============ */
.why { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; }
.why__item { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 28px 24px; text-align: center; box-shadow: var(--shadow); transition: transform .3s var(--ease); }
.why__item:hover { transform: translateY(-5px); }
.why__ico { font-size: 30px; margin-bottom: 12px; }
.why__item h4 { font-size: 17px; margin-bottom: 8px; }
.why__item p { color: var(--text-muted); font-size: 14px; }

/* ============ 数据 ============ */
.stats { background: linear-gradient(135deg, #0F2A1E, #1F7A4D); color: #fff; padding: 90px 0; }
.stats__grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; text-align: center; }
.stat__num { font-size: clamp(34px, 4.5vw, 52px); font-weight: 800; color: #fff; line-height: 1; }
.stat__label { margin-top: 12px; color: rgba(255,255,255,.82); font-size: 15px; }
.stats__note { text-align: center; margin-top: 30px; font-size: 13px; color: rgba(255,255,255,.6); }

/* ============ 案例 ============ */
.cases { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.case { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 28px 26px; box-shadow: var(--shadow); transition: transform .3s var(--ease), box-shadow .3s; }
.case:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }
.case__tag { display: inline-block; font-size: 12.5px; font-weight: 600; color: var(--green-600); background: var(--lime-100); padding: 5px 12px; border-radius: 999px; margin-bottom: 14px; }
.case h3 { font-size: 18px; margin-bottom: 10px; }
.case p { color: var(--text-muted); font-size: 14.5px; }
.case__more { display: inline-block; margin-top: 16px; font-size: 14px; font-weight: 600; color: var(--green-500); }

/* ============ 联系 ============ */
.contact__grid { display: grid; grid-template-columns: 1fr 1.1fr; gap: 40px; align-items: start; }
.contact__info { display: grid; gap: 16px; }
.contact__row { display: flex; flex-direction: column; gap: 4px; padding: 16px 18px; background: var(--bg-soft); border: 1px solid var(--line); border-radius: var(--radius-sm); }
.contact__k { font-size: 14px; font-weight: 700; color: var(--green-600); }
.contact__v { font-size: 15px; color: var(--text); }
.contact__form { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 28px; box-shadow: var(--shadow); }
.field { margin-bottom: 14px; }
.field input, .field select, .field textarea {
  width: 100%; padding: 13px 15px; border: 1px solid var(--line); border-radius: var(--radius-sm);
  font-size: 15px; font-family: inherit; color: var(--text); background: #fff; transition: border-color .2s, box-shadow .2s;
}
.field input:focus, .field select:focus, .field textarea:focus { outline: none; border-color: var(--green-400); box-shadow: 0 0 0 3px rgba(70,184,113,.16); }
.field textarea { resize: vertical; }
.contact__hint { font-size: 12px; color: var(--text-muted); margin-top: 12px; }

/* ============ 企业微信客服 ============ */
.kefu-fab {
  position: fixed; right: 22px; bottom: 22px; z-index: 60;
  display: inline-flex; align-items: center; gap: 8px;
  background: var(--green-500); color: #fff; text-decoration: none;
  padding: 13px 20px; border-radius: 999px; font-weight: 700; font-size: 15px;
  box-shadow: 0 10px 26px rgba(46,158,91,.4);
  transition: transform .25s var(--ease), background .25s;
}
.kefu-fab:hover { transform: translateY(-3px); background: var(--green-600); }
.kefu-fab svg { width: 20px; height: 20px; flex: 0 0 auto; }
.contact__panel { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 28px; box-shadow: var(--shadow); }
.contact__panel h3 { font-size: 20px; margin-bottom: 10px; }
.contact__panel p { color: var(--text-muted); font-size: 14.5px; margin-bottom: 18px; }
@media (max-width: 480px) {
  .kefu-fab { padding: 11px 16px; font-size: 14px; right: 16px; bottom: 16px; }
}

/* ============ 页脚 ============ */
.footer { background: var(--green-900); color: #fff; padding-top: 56px; }
.footer__inner { display: flex; justify-content: space-between; gap: 40px; flex-wrap: wrap; padding-bottom: 36px; border-bottom: 1px solid rgba(255,255,255,.12); }
.brand--light .brand__text { color: #fff; }
.brand--light .brand__text small { color: rgba(255,255,255,.7); }
.footer__desc { margin-top: 14px; color: rgba(255,255,255,.7); font-size: 14px; max-width: 420px; }
.footer__nav { display: flex; gap: 26px; flex-wrap: wrap; align-items: center; }
.footer__nav a { color: rgba(255,255,255,.82); font-size: 15px; }
.footer__nav a:hover { color: var(--lime-300); }
.footer__bottom { padding: 18px 0; text-align: center; font-size: 13px; color: rgba(255,255,255,.55); }

/* ============ 滚动揭示动画 ============ */
.reveal { opacity: 0; transform: translateY(26px); transition: opacity .7s var(--ease), transform .7s var(--ease); }
.reveal.is-visible { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  html { scroll-behavior: auto; }
}

/* ============ 响应式 ============ */
@media (max-width: 980px) {
  .cards, .why, .stats__grid, .process { grid-template-columns: repeat(2, 1fr); }
  .about, .contact__grid { grid-template-columns: 1fr; }
  .cases { grid-template-columns: 1fr; }
}
@media (max-width: 720px) {
  .nav__links {
    position: fixed; top: 64px; right: 16px; left: 16px;
    flex-direction: column; align-items: stretch; gap: 6px;
    background: #fff; border-radius: var(--radius); padding: 16px;
    box-shadow: var(--shadow-lg); transform: translateY(-12px); opacity: 0; pointer-events: none; transition: .28s var(--ease);
  }
  .nav__links.is-open { transform: none; opacity: 1; pointer-events: auto; }
  .nav__links a { color: var(--text) !important; padding: 10px 8px; border-radius: 8px; }
  .nav__links a:hover { background: var(--bg-soft); }
  .nav__toggle { display: flex; }
  .section { padding: 70px 0; }
  .hero { min-height: 92vh; }
}
@media (max-width: 480px) {
  .cards, .why, .stats__grid, .process { grid-template-columns: 1fr; }
  .container { padding: 0 18px; }
}

/* ============ 合作流程 ============ */
.process { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; }
.step { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 30px 24px; box-shadow: var(--shadow); transition: transform .3s var(--ease), box-shadow .3s; }
.step:hover { transform: translateY(-5px); box-shadow: var(--shadow-lg); }
.step__no { font-size: 34px; font-weight: 800; color: var(--lime-300); -webkit-text-stroke: 1.5px var(--green-500); line-height: 1; margin-bottom: 14px; letter-spacing: 1px; }
.step h4 { font-size: 18px; margin-bottom: 8px; }
.step p { color: var(--text-muted); font-size: 14px; }