/* ===== 基础与变量 ===== */
:root {
  --green: #17a368;
  --green-deep: #0b3d2e;
  --green-dark: #0f5c40;
  --gold: #c9a24b;
  --gold-light: #e3c87f;
  --ink: #17251f;
  --gray: #5f6f67;
  --cream: #faf7f0;
  --white: #ffffff;
  --radius: 18px;
  --shadow-sm: 0 4px 16px rgba(15, 60, 40, 0.08);
  --shadow: 0 16px 44px rgba(15, 60, 40, 0.12);
  --shadow-lg: 0 28px 64px rgba(15, 60, 40, 0.18);
  --font-serif: Georgia, "Songti SC", "STSong", "SimSun", serif;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  color: var(--ink);
  line-height: 1.75;
  background: var(--white);
  -webkit-font-smoothing: antialiased;
}
::selection { background: var(--green); color: #fff; }
::-webkit-scrollbar { width: 10px; }
::-webkit-scrollbar-track { background: #eef2ee; }
::-webkit-scrollbar-thumb { background: #b9cfc2; border-radius: 6px; }
::-webkit-scrollbar-thumb:hover { background: var(--green); }

a { text-decoration: none; color: inherit; }
button { font-family: inherit; }
.container { width: min(1220px, 92%); margin: 0 auto; }

/* ===== 滚动进度条 ===== */
.progress-bar {
  position: fixed; top: 0; left: 0; height: 3px; width: 0;
  background: linear-gradient(90deg, var(--green), var(--gold));
  z-index: 200;
}

/* ===== 通用板块 ===== */
.section { padding: 110px 0; }
.section-cream { background: var(--cream); }
.section-dark {
  background:
    radial-gradient(900px 500px at 85% -10%, rgba(201,162,75,.16), transparent 60%),
    radial-gradient(700px 500px at 0% 110%, rgba(23,163,104,.25), transparent 55%),
    linear-gradient(150deg, #082b1f 0%, #0b3d2e 55%, #10533b 100%);
  color: #eef6f0;
}
.section-dark .section-desc { color: rgba(238,246,240,.72); }

.section-head { text-align: center; margin-bottom: 64px; }
.section-en {
  display: inline-block; letter-spacing: 5px; font-size: 12.5px;
  color: var(--gold); font-weight: 700; margin-bottom: 10px;
}
.section-head h2 {
  font-family: var(--font-serif);
  font-size: clamp(30px, 3.6vw, 42px);
  letter-spacing: 4px; font-weight: 700;
}
.section-head h2::after {
  content: ""; display: block; width: 44px; height: 2px;
  background: linear-gradient(90deg, var(--gold), transparent);
  margin: 18px auto 0; border-radius: 2px;
}
.section-desc { margin-top: 14px; color: var(--gray); font-size: 15px; letter-spacing: 1px; }

/* ===== 进场动画 ===== */
.reveal { opacity: 0; transform: translateY(34px); transition: opacity .8s cubic-bezier(.22,.61,.36,1), transform .8s cubic-bezier(.22,.61,.36,1); }
.reveal.visible { opacity: 1; transform: none; }

/* ===== 导航 ===== */
.header {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  transition: background .35s, box-shadow .35s, backdrop-filter .35s;
}
.header.scrolled {
  background: rgba(255,255,255,.85);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  box-shadow: 0 1px 0 rgba(15,60,40,.08), 0 8px 30px rgba(15,60,40,.06);
}
.nav-wrap { display: flex; align-items: center; gap: 28px; height: 80px; }

.logo { display: flex; align-items: center; gap: 12px; flex-shrink: 0; }
.logo-img {
  width: 48px; height: 48px; border-radius: 50%;
  background: #fff; padding: 2px; object-fit: cover;
  box-shadow: 0 4px 14px rgba(0,0,0,.22), 0 0 0 2px rgba(201,162,75,.45);
  transition: transform .35s;
}
.logo:hover .logo-img { transform: rotate(-6deg) scale(1.06); }
.logo-text { font-size: 20px; font-weight: 700; letter-spacing: 2px; line-height: 1.2; color: #fff; transition: color .3s; }
.logo-text small { display: block; font-size: 9px; letter-spacing: 2.5px; font-weight: 400; opacity: .75; }
.header.scrolled .logo-text { color: var(--ink); }

.nav { display: flex; gap: 2px; margin-left: auto; }
.nav-link {
  padding: 9px 15px; font-size: 15px; color: rgba(255,255,255,.92);
  border-radius: 8px; position: relative; transition: color .25s;
}
.nav-link::after {
  content: ""; position: absolute; left: 15px; right: 15px; bottom: 4px;
  height: 2px; background: var(--gold); border-radius: 2px;
  transform: scaleX(0); transform-origin: left; transition: transform .3s;
}
.nav-link:hover::after, .nav-link.active::after { transform: scaleX(1); }
.nav-link:hover, .nav-link.active { color: var(--gold-light); }
.header.scrolled .nav-link { color: var(--ink); }
.header.scrolled .nav-link:hover, .header.scrolled .nav-link.active { color: var(--green); }

.hotline {
  flex-shrink: 0; display: flex; align-items: center; gap: 10px;
  color: #fff; padding: 8px 16px; border-radius: 30px;
  border: 1px solid rgba(255,255,255,.28); transition: .3s;
}
.hotline-ico { width: 20px; height: 20px; flex-shrink: 0; }
.hotline i { display: block; font-style: normal; font-size: 10.5px; opacity: .75; line-height: 1.2; }
.hotline strong { display: block; font-size: 16px; letter-spacing: .5px; line-height: 1.3; }
.header.scrolled .hotline { color: var(--green-deep); border-color: rgba(15,60,40,.18); }
.hotline:hover { background: var(--green); color: #fff !important; border-color: var(--green); }

.menu-btn { display: none; flex-direction: column; gap: 5px; background: none; border: 0; cursor: pointer; padding: 8px; }
.menu-btn span { width: 24px; height: 2px; background: #fff; border-radius: 2px; transition: .3s; }
.header.scrolled .menu-btn span { background: var(--ink); }

/* ===== 首屏 ===== */
.hero {
  position: relative; min-height: 100vh; display: flex; align-items: center;
  color: #fff; overflow: hidden;
}
.hero-bg {
  position: absolute; inset: 0;
  background: url('../img/24.jpeg') center 38% / cover no-repeat;
  transform: scale(1.06);
}
.hero-bg::before {
  content: ""; position: absolute; inset: 0;
  background:
    linear-gradient(115deg, rgba(5,26,17,.86) 0%, rgba(8,43,31,.62) 42%, rgba(8,43,31,.22) 75%, rgba(8,43,31,.08) 100%),
    linear-gradient(to top, rgba(5,26,17,.88) 0%, transparent 42%);
}
.hero-orb {
  position: absolute; border-radius: 50%; filter: blur(70px); opacity: .5;
  animation: orbFloat 10s ease-in-out infinite alternate;
}
.orb-1 { width: 420px; height: 420px; background: rgba(23,163,104,.5); top: -120px; right: -80px; }
.orb-2 { width: 340px; height: 340px; background: rgba(201,162,75,.35); bottom: -100px; left: 8%; animation-delay: -4s; }
@keyframes orbFloat { from { transform: translateY(0); } to { transform: translateY(40px); } }

.hero-inner {
  position: relative; display: grid; grid-template-columns: 1.15fr .85fr;
  gap: 60px; align-items: center; padding: 150px 0 110px;
}
.hero-tag {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 7px 20px; border: 1px solid rgba(201,162,75,.5);
  color: var(--gold-light); border-radius: 30px; font-size: 13.5px;
  letter-spacing: 3px; margin-bottom: 28px;
  background: rgba(201,162,75,.08);
}
.pulse-dot {
  width: 8px; height: 8px; border-radius: 50%; background: var(--gold);
  animation: pulse 1.8s infinite;
}
@keyframes pulse {
  0% { box-shadow: 0 0 0 0 rgba(201,162,75,.55); }
  70% { box-shadow: 0 0 0 9px rgba(201,162,75,0); }
  100% { box-shadow: 0 0 0 0 rgba(201,162,75,0); }
}
.hero-title {
  font-family: var(--font-serif);
  font-size: clamp(38px, 5.4vw, 64px);
  line-height: 1.3; letter-spacing: 4px; font-weight: 700;
}
.hero-title em {
  font-style: normal; color: var(--gold-light);
  background: linear-gradient(120deg, #e9d28c, var(--gold));
  -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent;
}
.hero-sub { margin-top: 26px; font-size: 16px; color: rgba(255,255,255,.78); letter-spacing: .5px; }

.hero-actions { margin-top: 42px; display: flex; gap: 16px; flex-wrap: wrap; }
.btn {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 15px 36px; border-radius: 40px; font-size: 15.5px;
  letter-spacing: 2px; transition: .3s; cursor: pointer; border: 1px solid transparent;
}
.btn svg { width: 18px; height: 18px; transition: transform .3s; }
.btn:hover svg { transform: translateX(4px); }
.btn-primary {
  background: linear-gradient(120deg, #dcbb63, var(--gold));
  color: #2c2007; font-weight: 700;
  box-shadow: 0 12px 28px rgba(201,162,75,.35);
}
.btn-primary:hover { transform: translateY(-3px); box-shadow: 0 18px 36px rgba(201,162,75,.45); }
.btn-ghost { border-color: rgba(255,255,255,.5); color: #fff; }
.btn-ghost:hover { background: rgba(255,255,255,.12); transform: translateY(-3px); }

.hero-stats {
  margin-top: 56px; display: flex; align-items: center; gap: 26px; flex-wrap: wrap;
  padding-top: 34px; border-top: 1px solid rgba(255,255,255,.14);
}
.hstat b { font-size: 30px; font-weight: 800; color: #fff; letter-spacing: 1px; }
.hstat b i { font-style: normal; font-size: 15px; color: var(--gold-light); margin-left: 2px; }
.hstat span { display: block; font-size: 12.5px; color: rgba(255,255,255,.6); letter-spacing: 2px; margin-top: 2px; }
.hstat-divider { width: 1px; height: 36px; background: rgba(255,255,255,.16); }

/* 首屏右侧产品卡片 */
.hero-visual { display: flex; justify-content: center; }
.hero-card {
  position: relative; width: min(340px, 100%);
  background: rgba(255,255,255,.08);
  border: 1px solid rgba(255,255,255,.18);
  backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px);
  border-radius: 24px; padding: 20px;
  box-shadow: 0 30px 70px rgba(0,0,0,.35);
  animation: cardFloat 5s ease-in-out infinite alternate;
}
@keyframes cardFloat { from { transform: translateY(0) rotate(-1deg); } to { transform: translateY(-16px) rotate(1deg); } }
.hc-img {
  height: 260px; border-radius: 16px;
  background: linear-gradient(160deg, #fdfbf5, #f0ead8);
  display: flex; align-items: center; justify-content: center; padding: 14px;
}
.hc-img img {
  max-height: 100%; max-width: 100%; object-fit: contain;
  filter: drop-shadow(0 14px 20px rgba(15,60,40,.2));
}
.hc-info { padding: 18px 6px 4px; }
.hc-info b { font-size: 17px; letter-spacing: 1px; display: block; }
.hc-info span { font-size: 13px; color: rgba(255,255,255,.65); }
.hc-float {
  position: absolute; padding: 7px 16px; border-radius: 30px;
  font-size: 12.5px; font-weight: 700; letter-spacing: 1px;
  background: rgba(255,255,255,.95); color: var(--green-deep);
  box-shadow: 0 10px 24px rgba(0,0,0,.25);
}
.float-a { top: -14px; left: -22px; }
.float-b { bottom: 64px; right: -26px; color: #7a5c14; }

.hero-scroll {
  position: absolute; bottom: 28px; left: 50%; transform: translateX(-50%);
  width: 26px; height: 44px; border: 2px solid rgba(255,255,255,.4); border-radius: 14px;
}
.hero-scroll span {
  position: absolute; top: 8px; left: 50%; width: 4px; height: 8px; margin-left: -2px;
  background: var(--gold); border-radius: 2px; animation: scrollDot 1.6s infinite;
}
@keyframes scrollDot { 0% { opacity: 1; top: 8px; } 70% { opacity: 0; top: 24px; } 100% { opacity: 0; } }

/* ===== 信任滚动条 ===== */
.marquee-wrap {
  background: var(--green-deep); border-top: 1px solid rgba(255,255,255,.08);
  padding: 18px 0; overflow: hidden;
}
.marquee { display: flex; }
.marquee-track {
  display: flex; align-items: center; gap: 34px; white-space: nowrap;
  animation: marquee 26s linear infinite;
}
.marquee-wrap:hover .marquee-track { animation-play-state: paused; }
.marquee-track span {
  color: rgba(255,255,255,.85); font-size: 15px; letter-spacing: 4px; font-weight: 600;
}
.marquee-track i { color: var(--gold); font-style: normal; font-size: 10px; }
@keyframes marquee { from { transform: translateX(0); } to { transform: translateX(-50%); } }

/* ===== 关于我们 ===== */
.about-grid { display: grid; grid-template-columns: 1.05fr .95fr; gap: 70px; align-items: center; }
.about-text h3 {
  font-family: var(--font-serif);
  font-size: 26px; color: var(--green-deep); margin-bottom: 20px; letter-spacing: 2px;
}
.about-text p { color: var(--gray); margin-bottom: 14px; text-align: justify; font-size: 15.5px; }
.value-list { list-style: none; margin-top: 28px; }
.value-list li {
  display: flex; gap: 18px; padding: 13px 0; border-bottom: 1px dashed #dde5df; font-size: 15px;
  transition: padding-left .3s;
}
.value-list li:hover { padding-left: 8px; }
.value-list strong { color: var(--gold); white-space: nowrap; font-size: 15px; letter-spacing: 1px; }

.about-media { position: relative; }
.about-img {
  height: 440px; border-radius: 26px; box-shadow: var(--shadow-lg);
  position: relative; overflow: hidden;
}
.about-img img {
  width: 100%; height: 100%; object-fit: cover; display: block;
  transition: transform 1s cubic-bezier(.22,.61,.36,1);
}
.about-media:hover .about-img img { transform: scale(1.05); }
.about-img-label {
  position: absolute; left: 22px; bottom: 22px;
  background: rgba(255,255,255,.92); color: var(--green-deep);
  font-size: 13px; font-weight: 700; letter-spacing: 2px;
  padding: 8px 18px; border-radius: 30px; box-shadow: var(--shadow-sm);
}
.about-exp {
  position: absolute; right: -24px; top: 40px;
  background: var(--green-deep); color: #fff;
  border-radius: 20px; padding: 24px 26px;
  box-shadow: var(--shadow-lg); text-align: center;
}
.about-exp b { font-size: 38px; font-weight: 800; color: var(--gold-light); line-height: 1; }
.about-exp b span { font-size: 16px; }
.about-exp p { font-size: 12.5px; color: rgba(255,255,255,.75); margin-top: 8px; line-height: 1.6; }

/* ===== 奶源数字 ===== */
.counters { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; margin-bottom: 64px; }
.counter {
  text-align: center; padding: 40px 12px 34px; border-radius: var(--radius);
  background: rgba(255,255,255,.06); border: 1px solid rgba(255,255,255,.1);
  transition: .35s;
}
.counter:hover { background: rgba(255,255,255,.1); transform: translateY(-5px); border-color: rgba(201,162,75,.4); }
.counter b {
  font-size: 52px; font-weight: 800; line-height: 1;
  background: linear-gradient(120deg, #ecd896, var(--gold));
  -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent;
}
.counter i { font-style: normal; font-size: 15px; color: rgba(255,255,255,.8); margin-left: 4px; }
.counter span { display: block; margin-top: 10px; font-size: 14px; letter-spacing: 3px; color: rgba(255,255,255,.85); }

.origin-cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.o-card {
  background: rgba(255,255,255,.05); border: 1px solid rgba(255,255,255,.1);
  border-radius: 22px; overflow: hidden; transition: .35s;
}
.o-card:hover { transform: translateY(-8px); border-color: rgba(201,162,75,.45); box-shadow: 0 24px 50px rgba(0,0,0,.35); }
.o-img { height: 190px; position: relative; overflow: hidden; }
.o-img img {
  width: 100%; height: 100%; object-fit: cover; display: block;
  transition: transform .9s cubic-bezier(.22,.61,.36,1);
}
.o-card:hover .o-img img { transform: scale(1.09); }
.o-img::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(to top, rgba(8,43,31,.35), transparent 55%);
}
.o-num {
  position: absolute; right: 18px; bottom: -12px; z-index: 1;
  font-family: var(--font-serif); font-size: 64px; font-weight: 700;
  color: rgba(255,255,255,.55); text-shadow: 0 2px 10px rgba(0,0,0,.35);
}
.o-body { padding: 24px 26px 28px; }
.o-body h4 { font-size: 19px; letter-spacing: 2px; color: var(--gold-light); margin-bottom: 8px; }
.o-body p { font-size: 14px; color: rgba(255,255,255,.75); }

/* ===== 工厂时间线 ===== */
.timeline { position: relative; max-width: 860px; margin: 0 auto; }
.timeline::before {
  content: ""; position: absolute; left: 50%; top: 10px; bottom: 10px;
  width: 2px; transform: translateX(-50%);
  background: linear-gradient(to bottom, var(--green), var(--gold));
  border-radius: 2px; opacity: .35;
}
.t-item {
  position: relative; width: 50%; padding: 0 48px 44px 0;
}
.t-item:nth-child(even) { margin-left: 50%; padding: 0 0 44px 48px; }
.t-item:last-child { padding-bottom: 0; }
.t-dot {
  position: absolute; top: 24px; right: -8px;
  width: 16px; height: 16px; border-radius: 50%;
  background: var(--gold); border: 3px solid #fff;
  box-shadow: 0 0 0 5px rgba(201,162,75,.25);
}
.t-item:nth-child(even) .t-dot { right: auto; left: -8px; }
.t-card {
  background: #fff; border-radius: var(--radius); padding: 30px 32px;
  box-shadow: var(--shadow); border: 1px solid #eef2ee;
  transition: .3s;
}
.t-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); border-color: rgba(23,163,104,.3); }
.t-step { font-size: 11.5px; letter-spacing: 3px; color: var(--gold); font-weight: 700; }
.t-card h4 { font-size: 19px; color: var(--green-deep); margin: 8px 0 10px; letter-spacing: 1px; }
.t-card p { font-size: 14.5px; color: var(--gray); }

/* ===== 产品 ===== */
.p-filter { display: flex; justify-content: center; gap: 12px; margin-bottom: 46px; flex-wrap: wrap; }
.pf-btn {
  padding: 11px 28px; border-radius: 30px; border: 1.5px solid #d9dfd6;
  background: #fff; color: var(--gray); font-size: 14.5px; letter-spacing: 2px;
  cursor: pointer; transition: .3s;
}
.pf-btn:hover { border-color: var(--green); color: var(--green); }
.pf-btn.active {
  background: linear-gradient(120deg, #1a8a5c, var(--green));
  color: #fff; border-color: transparent;
  box-shadow: 0 10px 22px rgba(23,163,104,.32);
}

.product-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 30px; }
.p-card {
  background: #fff; border-radius: 22px; overflow: hidden;
  box-shadow: var(--shadow-sm); border: 1px solid #f0ece2;
  transition: .4s cubic-bezier(.22,.61,.36,1);
}
.p-card.hide { display: none; }
.p-card:hover { transform: translateY(-10px); box-shadow: var(--shadow-lg); }
.p-img {
  height: 250px; position: relative; overflow: hidden;
  display: flex; align-items: center; justify-content: center;
  background: linear-gradient(160deg, #fdfbf5, #f2eee1);
  padding: 18px;
}
.p-img img {
  max-height: 100%; max-width: 100%; object-fit: contain;
  transition: transform .5s cubic-bezier(.22,.61,.36,1);
  filter: drop-shadow(0 12px 18px rgba(15,60,40,.16));
}
.p-card:hover .p-img img { transform: scale(1.07) translateY(-5px); }
.p-tag {
  position: absolute; top: 16px; left: 16px;
  font-size: 12px; font-weight: 700; letter-spacing: 1px;
  background: rgba(255,255,255,.92); color: var(--green-deep);
  padding: 5px 14px; border-radius: 20px; box-shadow: var(--shadow-sm);
}
.p-body { padding: 24px 26px 26px; }
.p-body h4 { font-size: 18px; color: var(--ink); margin-bottom: 8px; letter-spacing: .5px; }
.p-body p { font-size: 14px; color: var(--gray); min-height: 48px; }
.p-foot {
  display: flex; align-items: center; justify-content: space-between;
  margin-top: 16px; padding-top: 16px; border-top: 1px dashed #e8e4d8;
}
.p-spec { font-size: 13px; color: var(--gold); font-weight: 700; letter-spacing: 1px; }
.p-link { font-size: 14px; color: var(--green); font-weight: 600; transition: .25s; }
.p-link:hover { color: var(--gold); letter-spacing: 1px; }

/* ===== 招商 ===== */
.join-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.j-card {
  position: relative; overflow: hidden;
  background: rgba(255,255,255,.06); border: 1px solid rgba(255,255,255,.12);
  border-radius: 20px; padding: 38px 28px 34px; transition: .35s;
}
.j-card::before {
  content: ""; position: absolute; top: 0; left: 0; right: 0; height: 3px;
  background: linear-gradient(90deg, var(--gold), transparent);
  transform: scaleX(0); transform-origin: left; transition: transform .4s;
}
.j-card:hover { transform: translateY(-8px); background: rgba(255,255,255,.1); }
.j-card:hover::before { transform: scaleX(1); }
.j-num {
  font-family: var(--font-serif); font-size: 40px; font-weight: 700;
  color: rgba(201,162,75,.35); line-height: 1;
}
.j-card b { display: block; font-size: 19px; color: var(--gold-light); margin: 14px 0 12px; letter-spacing: 2px; }
.j-card p { font-size: 14px; color: rgba(255,255,255,.78); }
.join-cta { text-align: center; margin-top: 52px; }

/* ===== 新闻 ===== */
.news-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 30px; }
.n-card {
  background: #fff; border-radius: 22px; overflow: hidden;
  box-shadow: var(--shadow-sm); border: 1px solid #eef2ee;
  transition: .35s; display: flex; flex-direction: column;
}
.n-card:hover { transform: translateY(-8px); box-shadow: var(--shadow-lg); }
.n-cover { height: 190px; position: relative; }
.n-cover img {
  width: 100%; height: 100%; object-fit: cover; display: block;
  transition: transform .9s cubic-bezier(.22,.61,.36,1);
}
.n-card:hover .n-cover img { transform: scale(1.08); }
.n-date {
  position: absolute; left: 22px; bottom: -22px;
  background: #fff; border-radius: 14px; padding: 10px 16px;
  text-align: center; box-shadow: var(--shadow);
  font-size: 12px; color: var(--gray); line-height: 1.3;
}
.n-date b { display: block; font-size: 24px; color: var(--green-deep); }
.n-body { padding: 40px 26px 26px; display: flex; flex-direction: column; flex: 1; }
.n-cat {
  align-self: flex-start; font-size: 12px; color: var(--gold);
  border: 1px solid rgba(201,162,75,.5); border-radius: 20px;
  padding: 3px 14px; letter-spacing: 1px; margin-bottom: 12px;
}
.n-body h4 { font-size: 18px; margin-bottom: 10px; line-height: 1.55; }
.n-body p { font-size: 14px; color: var(--gray); flex: 1; }
.n-more { margin-top: 16px; font-size: 14px; color: var(--green); font-weight: 600; transition: .25s; }
.n-more:hover { color: var(--gold); letter-spacing: 1px; }

/* ===== 联系我们 ===== */
.contact-wrap { display: grid; grid-template-columns: 1fr 1.05fr; gap: 40px; align-items: stretch; }
.contact-info {
  background: var(--green-deep); border-radius: 24px; padding: 44px 40px;
  display: flex; flex-direction: column; gap: 30px; justify-content: center;
  color: #fff;
  background-image: radial-gradient(500px 300px at 90% 0%, rgba(201,162,75,.18), transparent 60%);
}
.ci-item { display: flex; gap: 18px; align-items: flex-start; }
.ci-ico {
  width: 46px; height: 46px; flex-shrink: 0; border-radius: 14px;
  background: rgba(255,255,255,.1); border: 1px solid rgba(255,255,255,.16);
  display: flex; align-items: center; justify-content: center;
}
.ci-ico svg { width: 22px; height: 22px; color: var(--gold-light); }
.ci-item b { font-size: 13px; letter-spacing: 3px; color: rgba(255,255,255,.6); display: block; margin-bottom: 4px; }
.ci-big { font-size: 26px; font-weight: 800; color: var(--gold-light); letter-spacing: 1px; }
.ci-item p { font-size: 15px; color: rgba(255,255,255,.88); }

.contact-form {
  background: #fff; border-radius: 24px; padding: 44px 42px;
  box-shadow: var(--shadow); border: 1px solid #f0ece2;
}
.contact-form h3 { font-family: var(--font-serif); font-size: 24px; letter-spacing: 2px; color: var(--green-deep); }
.cf-sub { font-size: 13.5px; color: var(--gray); margin: 8px 0 24px; }
.cf-row { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.contact-form input, .contact-form select, .contact-form textarea {
  width: 100%; padding: 14px 18px; margin-bottom: 14px;
  border: 1.5px solid #e4e9e4; border-radius: 12px;
  font-size: 14.5px; font-family: inherit; color: var(--ink);
  background: #fafcfa; transition: border-color .25s, box-shadow .25s;
  outline: none; resize: vertical;
}
.contact-form input:focus, .contact-form select:focus, .contact-form textarea:focus {
  border-color: var(--green); box-shadow: 0 0 0 4px rgba(23,163,104,.12); background: #fff;
}
.cf-submit { width: 100%; justify-content: center; margin-top: 6px; }

/* ===== 页脚 ===== */
.footer { background: #07231a; color: rgba(255,255,255,.68); padding-top: 72px; }
.footer-inner { display: grid; grid-template-columns: 1.4fr 1fr 1.2fr; gap: 48px; padding-bottom: 52px; }
.f-brand .logo-text { color: #fff; }
.f-brand p { margin-top: 18px; font-size: 14px; line-height: 2; }
.f-links b { display: block; color: var(--gold-light); font-size: 15px; letter-spacing: 3px; margin-bottom: 18px; }
.f-links a, .f-links span { display: block; font-size: 14px; padding: 6px 0; transition: .25s; }
.f-links a:hover { color: var(--gold-light); padding-left: 6px; }
.copyright {
  border-top: 1px solid rgba(255,255,255,.08); text-align: center;
  padding: 22px 12px; font-size: 13px; color: rgba(255,255,255,.4);
}
.beian-link { color: rgba(255,255,255,.55); transition: color .25s; }
.beian-link:hover { color: var(--gold-light); }

/* ===== 浮动工具 ===== */
.float-bar { position: fixed; right: 20px; bottom: 90px; display: flex; flex-direction: column; gap: 10px; z-index: 90; }
.float-item {
  width: 50px; height: 50px; border-radius: 50%; border: 0; cursor: pointer;
  background: #fff; box-shadow: 0 8px 22px rgba(15,60,40,.18);
  display: flex; align-items: center; justify-content: center;
  color: var(--green-deep); transition: .3s;
}
.float-item svg { width: 21px; height: 21px; }
.float-item:hover { background: var(--green); color: #fff; transform: translateY(-4px); }
#backTop { opacity: 0; pointer-events: none; transform: translateY(10px); transition: .35s; }
#backTop.show { opacity: 1; pointer-events: auto; transform: none; }

/* ===== 响应式 ===== */
@media (max-width: 1024px) {
  .hero-inner { grid-template-columns: 1fr; padding-top: 130px; }
  .hero-visual { display: none; }
  .about-grid { grid-template-columns: 1fr; gap: 40px; }
  .about-exp { right: 10px; }
  .counters, .join-grid { grid-template-columns: repeat(2, 1fr); }
  .product-grid, .news-grid, .origin-cards { grid-template-columns: repeat(2, 1fr); }
  .contact-wrap { grid-template-columns: 1fr; }
  .footer-inner { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 640px) {
  .section { padding: 72px 0; }
  .nav {
    position: fixed; top: 80px; left: 0; right: 0; flex-direction: column;
    background: rgba(255,255,255,.97); backdrop-filter: blur(14px);
    box-shadow: 0 16px 40px rgba(0,0,0,.14);
    padding: 12px 4%; display: none;
  }
  .nav.open { display: flex; }
  .nav-link { color: var(--ink); padding: 13px 14px; }
  .nav-link::after { display: none; }
  .menu-btn { display: flex; margin-left: auto; }
  .hotline { display: none; }
  .hero-stats { gap: 18px; }
  .hstat-divider { display: none; }
  .hstat { flex: 1 1 40%; }
  .counters, .join-grid, .product-grid, .news-grid, .origin-cards { grid-template-columns: 1fr; }
  .timeline::before { left: 8px; }
  .t-item, .t-item:nth-child(even) { width: 100%; margin-left: 0; padding: 0 0 36px 36px; }
  .t-dot, .t-item:nth-child(even) .t-dot { left: 1px; right: auto; }
  .about-img { height: 320px; }
  .about-exp { padding: 18px 20px; top: 20px; }
  .cf-row { grid-template-columns: 1fr; }
  .footer-inner { grid-template-columns: 1fr; gap: 32px; }
  .float-bar { right: 12px; bottom: 70px; }
}