@charset "utf-8";
/* ==========================================================================
   拓商广告 - 大胆色块设计系统 v3
   1440px 容器 / 大色块分区 / 超大标题 / 圆角卡片 / 轻投影
   主色 #ff2002；三大能力组：设计创意(红) 制作落地(青) 数字推广(蓝)
   ========================================================================== */
/* ---------- 设计令牌 ---------- */
:root {
  --ad-primary: #ff2002;
  --ad-primary-deep: #ff3300;
  --ad-primary-tint: #fff1ec;
  --ad-ink: #16171d;
  --ad-ink-soft: #eef1f6;
  --ad-ink-2: #23252e;
  --ad-text: #24262d;
  --ad-muted: #6b7280;
  --ad-line: #ececf0;
  --ad-bg: #f6f7f9;
  --ad-radius: 22px;
  --ad-radius-sm: 14px;
  --ad-shadow: 0 14px 34px rgba(22, 23, 29, .08);
  --ad-shadow-sm: 0 6px 18px rgba(22, 23, 29, .05);
  --ad-red-grad: linear-gradient(135deg, #ff5a24 0%, #ff2002 60%, #ff3300 100%);
  --g-design: #ff2002;
  --g-make: #0b7285;
  --g-digital: #1c5ed1;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  font: 15px/1.75 "Microsoft YaHei", "PingFang SC", "Helvetica Neue", Arial, sans-serif;
  color: var(--ad-text);
  background: #fff;
}
ul, ol, li { list-style: none; }
a { color: var(--ad-text); text-decoration: none; transition: color .2s, background .2s, transform .2s; }
img { border: 0; max-width: 100%; vertical-align: middle; display: block; }
h1, h2, h3, h4, h5 { font-weight: 700; }
input, textarea, button { font-family: inherit; font-size: 15px; outline: none; }
table { border-collapse: collapse; }

.ad-wrap { width: 1440px; max-width: 100%; margin: 0 auto; padding: 0 28px; }
.ad-clear::after { content: ""; display: block; clear: both; }

/* ---------- 顶部信息条（墨色块） ---------- */
.ad-topbar { background: var(--ad-ink-soft); color: #5a6172; font-size: 13px; line-height: 40px; }
.ad-topbar .ad-wrap { display: flex; justify-content: space-between; align-items: center; }
.ad-topbar a { color: #5a6172; }
.ad-topbar a:hover { color: var(--ad-primary); }
.ad-topbar .ad-top-tel { color: var(--ad-text); }
.ad-topbar .ad-top-tel b { color: var(--ad-primary); font-weight: 700; }

/* ---------- 头部导航 ---------- */
.ad-header { background: #fff; position: sticky; top: 0; z-index: 100; border-bottom: 1px solid var(--ad-line); }
.ad-header.ad-sticky { border-bottom-color: transparent; }
.ad-header > .ad-wrap { display: flex; align-items: center; justify-content: space-between; height: 92px; }
.ad-logo { display: flex; align-items: center; }
.ad-logo img { max-height: 55px; width: auto; }
.ad-logo-text { line-height: 1.2; }
.ad-logo-text .ad-logo-cn { display: block; font-size: 30px; font-weight: 800; color: var(--ad-text); letter-spacing: 2px; }
.ad-logo-text .ad-logo-cn i { font-style: normal; color: var(--ad-primary); }
.ad-logo-text .ad-logo-en { display: block; font-size: 11px; color: var(--ad-muted); letter-spacing: 4px; margin-top: 3px; }
.ad-logo:hover { color: inherit; }

.ad-nav { display: flex; align-items: center; }
.ad-nav-menu { display: flex; }
.ad-nav-menu > li { position: relative; }
.ad-nav-menu > li > a {
  display: block; padding: 0 19px; line-height: 92px; font-size: 17px; font-weight: 500; color: var(--ad-text);
  position: relative;
}
.ad-nav-menu > li > a::after {
  content: ""; position: absolute; left: 50%; bottom: 20px; transform: translateX(-50%) scale(.5);
  width: 0; height: 0; border-left: 7px solid transparent; border-right: 7px solid transparent;
  border-top: 8px solid var(--ad-primary); opacity: 0; transition: opacity .25s, transform .25s;
}
.ad-nav-menu > li:hover > a,
.ad-nav-menu > li > a.ad-active,
.ad-nav-menu > li.ad-active > a { color: var(--ad-primary); }
.ad-nav-menu > li:hover > a::after,
.ad-nav-menu > li.ad-active > a::after { opacity: 1; transform: translateX(-50%) scale(1); }
.ad-nav-menu > li ul {
  display: none; position: absolute; top: calc(100% - 10px); left: 50%; transform: translateX(-50%);
  background: #fff; border-radius: var(--ad-radius-sm);
  min-width: 168px; z-index: 101; padding: 8px; overflow: hidden;
}
.ad-nav-menu > li:hover ul { display: block; }
.ad-nav-menu > li ul a { display: block; padding: 11px 16px; color: var(--ad-text); font-size: 15px; border-radius: 10px; }
.ad-nav-menu > li ul a:hover { color: #fff; background: var(--ad-primary); }

.ad-nav-tel { margin-left: 22px; padding-left: 22px; border-left: 1px solid var(--ad-line); line-height: 1.3; }
.ad-nav-tel .ad-nav-tel-label { font-size: 12px; color: var(--ad-muted); }
.ad-nav-tel .ad-nav-tel-num { font-size: 21px; font-weight: 800; color: var(--ad-primary); font-family: Arial, sans-serif; }

.ad-nav-cta {
  display: inline-block; margin-left: 22px; background: var(--ad-red-grad); color: #fff;
  padding: 12px 28px; font-size: 15px; font-weight: 700; border-radius: 999px;
}
.ad-nav-cta:hover { color: #fff; transform: translateY(-2px); }

.ad-menu-btn { display: none; width: 44px; height: 44px; background: var(--ad-primary-tint); border: none; border-radius: 12px; cursor: pointer; }
.ad-menu-btn i { display: block; width: 20px; height: 2px; background: var(--ad-primary); margin: 5px auto; border-radius: 2px; transition: transform .25s, opacity .25s; }
.ad-menu-btn.ad-open i:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.ad-menu-btn.ad-open i:nth-child(2) { opacity: 0; }
.ad-menu-btn.ad-open i:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Mega 菜单：服务项目三组色块 */
.ad-nav-menu > li.ad-mega { position: static; }
.ad-mega-panel {
  display: none; position: absolute; top: 100%; left: 0; right: 0; z-index: 100;
  background: #fff; border-top: 3px solid var(--ad-primary);
  padding: 10px 0 0;
}
.ad-mega-panel .ad-wrap { display: grid; grid-template-columns: 1fr 1fr 1fr 290px; gap: 26px; padding-top: 28px; padding-bottom: 34px; }
.ad-nav-menu > li.ad-mega:hover .ad-mega-panel { display: block; }
.ad-mega-col { border-radius: var(--ad-radius-sm); padding: 18px 18px 8px; background: var(--ad-bg); }
.ad-mega-col.ad-g-design { background: var(--ad-primary-tint); }
.ad-mega-col.ad-g-make { background: #e8f4f6; }
.ad-mega-col.ad-g-digital { background: #eaf1fd; }
.ad-mega-col h4 { font-size: 15px; letter-spacing: 2px; padding: 0 4px 12px; margin-bottom: 6px; border-bottom: 1px dashed rgba(0, 0, 0, .12); }
.ad-mega-col.ad-g-design h4 { color: var(--g-design); }
.ad-mega-col.ad-g-make h4 { color: var(--g-make); }
.ad-mega-col.ad-g-digital h4 { color: var(--g-digital); }
.ad-mega-col h4 i { font-style: normal; font-size: 11px; margin-right: 7px; }
.ad-mega-col a { display: block; padding: 11px 10px; border-radius: 10px; }
.ad-mega-col a:last-child { margin-bottom: 8px; }
.ad-mega-col a b { display: block; font-size: 16px; color: var(--ad-text); font-weight: 700; }
.ad-mega-col a b em { font-style: normal; display: inline-block; margin-left: 8px; font-size: 11px; font-weight: 700; color: #fff; background: var(--ad-primary); border-radius: 999px; padding: 1px 9px; vertical-align: 2px; }
.ad-mega-col a span { display: block; font-size: 12px; color: var(--ad-muted); margin-top: 2px; }
.ad-mega-col a:hover { background: #fff; }
.ad-mega-cta { background: var(--ad-ink-soft); border-radius: var(--ad-radius-sm); padding: 26px 24px; color: var(--ad-text); display: flex; flex-direction: column; justify-content: center; }
.ad-mega-cta p { font-size: 15px; line-height: 2; color: #5a6172; }
.ad-mega-cta p b { color: var(--ad-text); font-size: 17px; }
.ad-mega-cta p i { font-style: normal; color: var(--ad-primary); }
.ad-mega-cta a { margin-top: 18px; background: var(--ad-red-grad); color: #fff; text-align: center; padding: 13px 0; font-size: 15px; font-weight: 700; border-radius: 999px; }
.ad-mega-cta a:hover { color: #fff; transform: translateY(-2px); }

/* 移动端抽屉 */
.ad-drawer { display: none; }

/* ---------- Hero 轮播 ---------- */
.ad-hero { position: relative; background: var(--ad-ink); }
.ad-hero .swiper-container { width: 100%; }
.ad-hero .swiper-slide { position: relative; overflow: hidden; }
.ad-hero .swiper-slide img { width: 100%; }
.ad-hero .swiper-slide a { display: block; }
.ad-hero .swiper-button-prev,
.ad-hero .swiper-button-next {
  width: 46px; height: 46px; top: auto; bottom: 24px; margin-top: 0; border-radius: 50%;
  background: rgba(255, 255, 255, .14); border: 1px solid rgba(255, 255, 255, .55);
  backdrop-filter: blur(4px); z-index: 11;
  transition: background .25s, border-color .25s, transform .25s;
}
.ad-hero .swiper-button-next { left: auto; right: 26px; }
.ad-hero .swiper-button-prev { left: auto; right: 84px; }
.ad-hero .swiper-button-prev::after,
.ad-hero .swiper-button-next::after { font-size: 14px; font-weight: 800; color: #fff; font-family: inherit; }
.ad-hero .swiper-button-prev:hover,
.ad-hero .swiper-button-next:hover { background: var(--ad-primary); border-color: var(--ad-primary); transform: translateY(-2px); }
.ad-hero .swiper-pagination { bottom: 22px !important; pointer-events: none; }
.ad-hero .swiper-pagination-bullet { pointer-events: auto; }
.ad-hero .swiper-pagination-bullet {
  width: 36px; height: 6px; border-radius: 999px; background: #fff; opacity: .5; margin: 0 4px !important;
}
.ad-hero .swiper-pagination-bullet-active { opacity: 1; background: var(--ad-primary); width: 52px; }

/* Hero 浮动营销文案（多组文案随轮播切换） */
.ad-hero::after { content: ""; position: absolute; inset: 0; z-index: 5; pointer-events: none;
  background: linear-gradient(90deg, rgba(22, 23, 29, .58) 0%, rgba(22, 23, 29, .26) 46%, rgba(22, 23, 29, 0) 74%); }
.ad-hero-float { position: absolute; left: 0; right: 0; top: 50%; transform: translateY(-50%); z-index: 10; pointer-events: none; }
.ad-hero-msgs { position: relative; min-height: 236px; }
.ad-hero-msg { position: absolute; left: 0; top: 0; width: min(620px, 100%); opacity: 0; transform: translateY(26px); transition: opacity .7s ease, transform .7s ease; }
.ad-hero-msg.ad-hm-on { opacity: 1; transform: none; }
.ad-hero-tag { display: inline-block; background: var(--ad-red-grad); color: #fff; font-size: 13px; font-weight: 700; letter-spacing: 2px; padding: 5px 16px; border-radius: 999px; }
.ad-hero-msg h2 { font-size: clamp(24px, 2.8vw, 40px); line-height: 1.42; font-weight: 800; color: #fff; margin: 16px 0 12px; }
.ad-hero-msg h2 i { font-style: normal; color: #ffb28f; }
.ad-hero-msg p { font-size: 16px; line-height: 1.8; color: rgba(255, 255, 255, .92); }
.ad-hero-btns { display: flex; align-items: center; gap: 14px; margin-top: 10px; flex-wrap: wrap; }
.ad-hero-btn, .ad-hero-tel { pointer-events: auto; }
.ad-hero-btn { background: var(--ad-red-grad); color: #fff; padding: 14px 36px; border-radius: 999px; font-size: 17px; font-weight: 700; transition: transform .2s; }
.ad-hero-btn:hover { color: #fff; transform: translateY(-3px); }
.ad-hero-tel { border: 1px solid rgba(255, 255, 255, .65); background: rgba(255, 255, 255, .1); backdrop-filter: blur(2px); color: #fff; padding: 13px 28px; border-radius: 999px; font-size: 17px; font-weight: 700; font-family: Arial, sans-serif; transition: background .2s, border-color .2s; }
.ad-hero-tel:hover { color: #fff; background: rgba(255, 255, 255, .22); border-color: #fff; }

/* ---------- 通用区块 ---------- */
.ad-section { padding: 92px 0; }
.ad-section.ad-bg-gray { background: var(--ad-bg); }
.ad-section.ad-bg-tint { background: var(--ad-primary-tint); }
.ad-sec-head { text-align: center; margin-bottom: 52px; position: relative; }
.ad-sec-head .ad-sec-title { font-size: clamp(30px, 3vw, 44px); color: var(--ad-text); line-height: 1.35; font-weight: 800; }
.ad-sec-head .ad-sec-title i { font-style: normal; color: var(--ad-primary); }
.ad-sec-head .ad-sec-sub { font-size: 13px; color: var(--ad-muted); letter-spacing: 4px; text-transform: uppercase; margin-top: 10px; }
.ad-sec-head .ad-sec-line { width: 64px; height: 6px; background: var(--ad-red-grad); border-radius: 999px; margin: 18px auto 0; }
.ad-sec-head.ad-left { text-align: left; }
.ad-sec-head.ad-left .ad-sec-line { margin-left: 0; }
.ad-sec-no {
  display: inline-block; background: var(--ad-ink); color: #fff; border-radius: 999px;
  padding: 6px 20px; font-size: 13px; letter-spacing: 3px; margin-bottom: 16px; font-family: Arial, sans-serif;
}
.ad-sec-no b { color: #ff3300; }

/* ---------- 按钮 ---------- */
.ad-btn {
  display: inline-block; padding: 14px 38px; background: var(--ad-red-grad); color: #fff;
  font-size: 16px; font-weight: 700; border: none; border-radius: 999px; cursor: pointer;
}
.ad-btn:hover { color: #fff; transform: translateY(-2px); }
.ad-btn.ad-btn-line { background: #fff; color: var(--ad-primary); border: 1px solid var(--ad-primary); }
.ad-btn.ad-btn-line:hover { background: var(--ad-primary); color: #fff; }

/* ---------- 关键词跑马灯（红色块） ---------- */
.ad-marquee { background: var(--ad-primary); overflow: hidden; height: 54px; }
.ad-marquee-track { display: flex; width: max-content; animation: admarquee 26s linear infinite; }
.ad-marquee-track span {
  display: inline-flex; align-items: center; height: 54px; padding: 0 30px;
  color: #fff; font-size: 16px; font-weight: 600; letter-spacing: 3px; white-space: nowrap;
}
.ad-marquee-track span::before { content: "✦"; color: rgba(255, 255, 255, .65); font-size: 13px; margin-right: 14px; }
@keyframes admarquee { from { transform: translateX(0); } to { transform: translateX(-50%); } }

/* ---------- 实力数据带（墨色圆角块） ---------- */
.ad-stats { padding: 34px 0 0; background: #fff; }
.ad-stats .ad-wrap { display: grid; grid-template-columns: repeat(4, 1fr); background: var(--ad-ink-soft); border-radius: var(--ad-radius); overflow: hidden; }
.ad-stat { text-align: center; padding: 38px 10px; position: relative; }
.ad-stat + .ad-stat::before { content: ""; position: absolute; left: 0; top: 26%; bottom: 26%; width: 1px; background: rgba(22, 23, 29, .08); }
.ad-stat b { font-family: Arial, sans-serif; font-size: 54px; line-height: 1; color: var(--ad-text); font-weight: 800; }
.ad-stat b i { font-style: normal; font-size: 18px; color: var(--ad-primary); margin-left: 4px; }
.ad-stat p { margin-top: 10px; font-size: 14px; color: #7b8190; letter-spacing: 3px; }

/* ---------- 服务项目：三大能力板块（色块归类+主打突出） ---------- */
.ad-group-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; }
.ad-group-card { background: var(--gc, var(--ad-primary)); border-radius: var(--ad-radius); padding: 36px 32px 26px; color: #fff; display: flex; flex-direction: column; }
.ad-group-card .ad-group-tag { font-size: 13px; letter-spacing: 4px; color: rgba(255, 255, 255, .72); text-transform: uppercase; }
.ad-group-card h3 { font-size: 30px; margin: 10px 0 8px; font-weight: 800; }
.ad-group-card .ad-group-desc { font-size: 14px; color: rgba(255, 255, 255, .85); line-height: 1.8; margin-bottom: 24px; }
.ad-g-item {
  display: flex; align-items: center; justify-content: space-between; gap: 12px;
  background: rgba(255, 255, 255, .16); border: 1px solid rgba(255, 255, 255, .22);
  border-radius: var(--ad-radius-sm); padding: 15px 20px; color: #fff; margin-bottom: 12px;
}
.ad-g-item b { font-size: 18px; font-weight: 700; }
.ad-g-item b em { font-style: normal; display: inline-block; margin-left: 10px; font-size: 11px; font-weight: 700; color: var(--gc, var(--ad-primary)); background: #fff; border-radius: 999px; padding: 2px 10px; vertical-align: 2px; }
.ad-g-item span { font-size: 12px; color: rgba(255, 255, 255, .75); white-space: nowrap; min-width: 0; }
.ad-g-item:hover { color: var(--gc, var(--ad-primary)); background: #fff; transform: translateX(4px); }
.ad-g-item:hover b em { background: var(--gc, var(--ad-primary)); color: #fff; }
.ad-g-item:hover span { font-size: 12px; color: var(--gc, var(--ad-primary)); white-space: nowrap; min-width: 0; }
.ad-g-item.ad-hot { background: #fff; color: var(--gc, var(--ad-primary)); border-color: #fff; }
.ad-g-item.ad-hot b em { background: var(--ad-primary); color: #fff; }
.ad-g-item.ad-hot span { color: var(--ad-muted); }
.ad-g-item.ad-hot:hover { transform: translateY(-3px); }
.ad-group-more {
  margin-top: auto; display: inline-flex; align-items: center; justify-content: center; gap: 6px;
  color: #fff; font-size: 14px; font-weight: 700; padding: 12px 0 4px;
}
.ad-group-more::after { content: "→"; }
.ad-group-more:hover { color: #fff; letter-spacing: 1px; }
.ad-srv-note { display: flex; align-items: center; justify-content: space-between; gap: 20px; margin-top: 30px; background: #fff; border: 1px dashed var(--ad-primary); border-radius: var(--ad-radius); padding: 22px 34px; }
.ad-srv-note p { font-size: 16px; }
.ad-srv-note p b { color: var(--ad-primary); font-size: 18px; }
.ad-srv-note .ad-btn { padding: 12px 32px; }

/* ---------- 关于我们分栏 ---------- */
.ad-about .ad-wrap { display: grid; grid-template-columns: 620px 1fr; gap: 64px; align-items: center; }
.ad-about-fig { position: relative; }
.ad-about-fig img { width: 100%; height: 460px; object-fit: cover; border-radius: var(--ad-radius); }
.ad-about-fig .ad-about-badge {
  position: absolute; right: 26px; bottom: -22px; background: var(--ad-red-grad); color: #fff;
  padding: 18px 28px; font-size: 14px; line-height: 1.5; border-radius: 18px; text-align: center;
}
.ad-about-badge b { display: block; font-size: 26px; }
.ad-about-txt .ad-sec-head { text-align: left; margin-bottom: 26px; }
.ad-about-txt .ad-sec-head .ad-sec-line { margin-left: 0; }
.ad-about-txt .ad-about-desc { color: var(--ad-muted); font-size: 16px; line-height: 2; margin-bottom: 20px; }
.ad-about-points { margin: 6px 0 30px; display: grid; grid-template-columns: 1fr; gap: 10px; }
.ad-about-points li { position: relative; padding: 13px 18px 13px 46px; background: var(--ad-primary-tint); border-radius: var(--ad-radius-sm); color: var(--ad-text); font-size: 15px; }
.ad-about-points li::before { content: "✓"; position: absolute; left: 18px; top: 13px; width: 20px; height: 20px; line-height: 20px; text-align: center; background: var(--ad-primary); color: #fff; border-radius: 50%; font-size: 12px; }

/* ---------- 我们的优势 ---------- */
.ad-adv-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; counter-reset: adadv; }
.ad-adv-item { background: #fff; border: 1px solid var(--ad-line); border-radius: var(--ad-radius); padding: 32px 28px; position: relative; counter-increment: adadv; transition: transform .25s; }
.ad-adv-item::before {
  content: "0" counter(adadv);
  display: inline-flex; align-items: center; justify-content: center; width: 58px; height: 58px;
  font-family: Arial, sans-serif; font-size: 22px; font-weight: 800; color: #fff; line-height: 1;
  background: var(--ad-red-grad); border-radius: 18px;
}
.ad-adv-item:hover { transform: translateY(-6px); }
.ad-adv-item h3 { font-size: 19px; color: var(--ad-text); margin: 20px 0 10px; }
.ad-adv-item p { font-size: 14px; color: var(--ad-muted); line-height: 1.8; }

/* ---------- 服务流程 ---------- */
.ad-proc-track { display: grid; grid-template-columns: repeat(6, 1fr); gap: 18px; }
.ad-proc-step { background: #fff; border: 1px solid var(--ad-line); border-radius: var(--ad-radius-sm); padding: 30px 16px; text-align: center; }
.ad-proc-step .ad-ps-no { display: block; font-family: Arial, sans-serif; font-size: 34px; font-weight: 800; line-height: 1; color: var(--ad-primary); margin-bottom: 14px; }
.ad-proc-step h3 { font-size: 17px; color: var(--ad-text); margin-bottom: 8px; }
.ad-proc-step p { font-size: 12px; color: var(--ad-muted); line-height: 1.6; }
.ad-proc-step:hover { background: var(--ad-ink); border-color: var(--ad-ink); transform: translateY(-4px); }
.ad-proc-step:hover .ad-ps-no { color: #ff3300; }
.ad-proc-step:hover h3 { color: #fff; }
.ad-proc-step:hover p { color: #9aa0ad; }

/* ---------- 案例网格 ---------- */
.ad-case-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.ad-case-grid.ad-cols3 { grid-template-columns: repeat(3, 1fr); }
.ad-case-item { background: #fff; border: 1px solid var(--ad-line); border-radius: var(--ad-radius); overflow: hidden; min-width: 0; display: block; }
.ad-case-item:hover { transform: translateY(-6px); border-color: transparent; }
.ad-case-item .ad-case-pic { height: 220px; overflow: hidden; position: relative; }
.ad-case-item .ad-case-pic img { width: 100%; height: 100%; object-fit: cover; transition: transform .4s; }
.ad-case-item:hover .ad-case-pic img { transform: scale(1.06); }
.ad-case-item .ad-case-pic .ad-case-tag {
  position: absolute; left: 14px; top: 14px; background: var(--ad-primary); color: #fff;
  font-size: 12px; font-weight: 700; padding: 5px 14px; border-radius: 999px;
}
.ad-case-item h3 { font-size: 16px; padding: 16px 18px 6px; color: var(--ad-text); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.ad-case-item:hover h3 { color: var(--ad-primary); }
.ad-case-item .ad-case-date { font-size: 12px; color: #9aa0ad; padding: 0 18px 16px; }

/* ---------- 门户新闻 ---------- */
.ad-news-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 26px; }
.ad-news-col { background: #fff; border: 1px solid var(--ad-line); border-radius: var(--ad-radius); padding: 30px; min-width: 0; overflow: hidden; }
.ad-news-col-head { display: flex; justify-content: space-between; align-items: center; margin-bottom: 18px; }
.ad-news-col-head h3 { font-size: 20px; }
.ad-news-col-head h3 i { font-style: normal; display: inline-block; width: 10px; height: 22px; background: var(--ad-red-grad); border-radius: 4px; margin-right: 10px; vertical-align: -2px; }
.ad-news-col-head a { font-size: 13px; color: var(--ad-muted); background: var(--ad-bg); padding: 6px 16px; border-radius: 999px; }
.ad-news-col-head a:hover { background: var(--ad-primary); color: #fff; }
.ad-news-feat { display: flex; gap: 18px; padding: 16px; background: var(--ad-bg); border-radius: var(--ad-radius-sm); margin-bottom: 8px; }
.ad-news-feat .ad-news-feat-pic { flex: 0 1 200px; min-width: 0; height: 132px; border-radius: 10px; overflow: hidden; }
.ad-news-feat .ad-news-feat-pic img { width: 100%; height: 100%; object-fit: cover; }
.ad-news-feat > div:last-child { min-width: 0; }
.ad-news-feat h4 { font-size: 17px; line-height: 1.5; margin-bottom: 8px; }
.ad-news-feat h4 a { color: var(--ad-text); }
.ad-news-feat h4 a:hover { color: var(--ad-primary); }
.ad-news-feat p { font-size: 13px; color: var(--ad-muted); line-height: 1.7; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.ad-news-feat .ad-news-date { font-size: 12px; color: #9aa0ad; margin-top: 8px; }
.ad-news-rows li { display: flex; align-items: center; padding: 14px 0; border-bottom: 1px dashed var(--ad-line); }
.ad-news-rows li:last-child { border-bottom: none; }
.ad-news-rows li .ad-news-dot { flex: 0 0 8px; width: 8px; height: 8px; background: var(--ad-line); border-radius: 50%; margin-right: 12px; }
.ad-news-rows li:hover .ad-news-dot { background: var(--ad-primary); }
.ad-news-rows li a.ad-news-title { flex: 1; min-width: 0; font-size: 15px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.ad-news-rows li .ad-news-date { flex: 0 0 auto; font-size: 13px; color: #9aa0ad; margin-left: 20px; }

/* ---------- CTA 大色块 ---------- */
.ad-cta { padding: 40px 0 92px; background: #fff; }
.ad-cta .ad-wrap { display: flex; align-items: center; justify-content: space-between; gap: 24px; background: var(--ad-red-grad); color: #fff; border-radius: 28px; padding: 52px 60px; }
.ad-cta h3 { font-size: clamp(24px, 2.4vw, 34px); line-height: 1.4; font-weight: 800; }
.ad-cta p { font-size: 15px; margin-top: 8px; color: rgba(255, 255, 255, .88); }
.ad-cta .ad-cta-actions { display: flex; align-items: center; gap: 22px; }
.ad-cta .ad-btn { background: #fff; color: var(--ad-primary); }
.ad-cta .ad-btn:hover { }
.ad-cta .ad-cta-tel { font-size: 28px; font-weight: 800; font-family: Arial, sans-serif; }

/* ---------- 页脚（浅色块） ---------- */
.ad-footer { background: var(--ad-ink-soft); color: #5a6172; padding: 70px 0 0; font-size: 14px; }
.ad-footer-grid { display: grid; grid-template-columns: 1.6fr 1.4fr 1fr 1.3fr; gap: 46px; padding-bottom: 50px; }
.ad-footer h4 { color: var(--ad-text); font-size: 17px; margin-bottom: 20px; }
.ad-footer h4::after { content: ""; display: block; width: 30px; height: 4px; background: var(--ad-primary); border-radius: 2px; margin-top: 10px; }
.ad-footer .ad-f-intro p { line-height: 2; }
.ad-footer .ad-f-intro .ad-f-logo { color: var(--ad-text); font-size: 26px; font-weight: 800; margin-bottom: 16px; letter-spacing: 2px; }
.ad-footer .ad-f-intro .ad-f-logo i { font-style: normal; color: var(--ad-primary); }
.ad-f-group { margin-bottom: 14px; }
.ad-f-group > span { display: block; font-size: 13px; color: var(--ad-primary); letter-spacing: 2px; margin-bottom: 6px; }
.ad-f-links li { padding: 5px 0; }
.ad-f-links a { color: #5a6172; }
.ad-f-links a::before { content: ""; display: inline-block; width: 6px; height: 6px; background: #c3c9d4; border-radius: 50%; margin-right: 9px; vertical-align: middle; }
.ad-f-links a:hover { color: var(--ad-primary); }
.ad-f-links a:hover::before { background: var(--ad-primary); }
.ad-f-contact li { padding: 6px 0; line-height: 1.8; }
.ad-f-contact b { color: var(--ad-text); font-weight: 400; }
.ad-f-contact .ad-f-tel { color: var(--ad-primary); font-size: 22px; font-weight: 800; font-family: Arial, sans-serif; }
.ad-f-bottom { border-top: 1px solid rgba(22, 23, 29, .08); padding: 20px 0; text-align: center; color: #8a90a0; font-size: 12px; }
.ad-f-bottom a { color: #8a90a0; }
.ad-f-bottom a:hover { color: var(--ad-primary); }

/* ---------- 内页横幅（大色块） ---------- */
.ad-pagebanner { background: var(--ad-red-grad); color: #fff; padding: 64px 0 58px; position: relative; overflow: hidden; }
.ad-pagebanner::after { content: ""; position: absolute; right: -80px; top: -80px; width: 300px; height: 300px; border-radius: 50%; background: rgba(255, 255, 255, .12); }
.ad-pagebanner::before { content: ""; position: absolute; right: 120px; bottom: -110px; width: 220px; height: 220px; border-radius: 50%; background: rgba(255, 255, 255, .08); }
.ad-pagebanner .ad-wrap { position: relative; z-index: 1; }
.ad-pb-crumb { font-size: 13px; color: rgba(255, 255, 255, .8); margin-bottom: 14px; }
.ad-pb-crumb a { color: rgba(255, 255, 255, .8); }
.ad-pb-crumb a:hover { color: #fff; }
.ad-pagebanner h1 { font-size: clamp(32px, 3.4vw, 48px); font-weight: 800; letter-spacing: 2px; }
.ad-pagebanner h1 span { display: block; font-size: 14px; font-weight: 400; letter-spacing: 5px; text-transform: uppercase; color: rgba(255, 255, 255, .75); margin-top: 10px; }
.ad-pb-actions { margin-top: 22px; display: flex; gap: 14px; flex-wrap: wrap; }
.ad-pb-actions a { background: #fff; color: var(--ad-primary); padding: 11px 28px; border-radius: 999px; font-weight: 700; }
.ad-pb-actions a.ad-pb-ghost { background: rgba(255, 255, 255, .16); color: #fff; border: 1px solid rgba(255, 255, 255, .4); }
.ad-pb-actions a:hover { transform: translateY(-2px); color: var(--ad-primary); background: #fff; }

/* ---------- 内页主体 ---------- */
.ad-main { padding: 60px 0 84px; }
.ad-layout { display: grid; grid-template-columns: 300px minmax(0, 1fr); gap: 34px; align-items: flex-start; }
.ad-layout .ad-side { min-width: 0; }
.ad-layout .ad-body { min-width: 0; }

/* 侧栏 */
.ad-side-box { background: #fff; border: 1px solid var(--ad-line); border-radius: var(--ad-radius); overflow: hidden; margin-bottom: 22px; }
.ad-side-box .ad-side-head { background: var(--ad-ink); color: #fff; font-size: 16px; padding: 16px 22px; }
.ad-side-box .ad-side-head i { font-style: normal; color: #ff3300; margin-right: 9px; font-size: 12px; }
.ad-subnav { padding: 8px; }
.ad-subnav li { border-radius: 12px; }
.ad-subnav li a { display: block; padding: 13px 16px; color: var(--ad-text); border-radius: 12px; }
.ad-subnav li a:hover { background: var(--ad-primary-tint); color: var(--ad-primary); }
.ad-subnav li.ad-sub-active a { background: var(--ad-red-grad); color: #fff; font-weight: 700; }
.ad-side-contact { padding: 20px 22px; line-height: 1.9; font-size: 13px; color: var(--ad-muted); }
.ad-side-contact .ad-side-tel { font-size: 24px; font-weight: 800; color: var(--ad-primary); display: block; margin: 6px 0 10px; font-family: Arial, sans-serif; }
.ad-side-cta { background: var(--ad-red-grad); color: #fff; padding: 30px 24px; text-align: center; margin-bottom: 22px; border-radius: var(--ad-radius); }
.ad-side-cta h4 { font-size: 19px; margin-bottom: 8px; }
.ad-side-cta p { font-size: 13px; color: rgba(255, 255, 255, .85); line-height: 1.9; }
.ad-side-cta .ad-side-tel { display: block; font-family: Arial, sans-serif; font-size: 24px; font-weight: 800; color: #fff; margin: 14px 0 18px; }
.ad-side-cta .ad-btn { background: #fff; color: var(--ad-primary); }
.ad-side-cta .ad-btn:hover { color: var(--ad-primary); }

/* 侧栏热榜 */
.ad-hot-list { padding: 8px 20px 16px; counter-reset: adhot; }
.ad-hot-list li { display: flex; align-items: center; padding: 12px 0; border-bottom: 1px dashed var(--ad-line); counter-increment: adhot; }
.ad-hot-list li:last-child { border-bottom: none; }
.ad-hot-list li::before {
  content: counter(adhot); flex: 0 0 20px; height: 20px; line-height: 20px; text-align: center;
  font-family: Arial, sans-serif; font-size: 12px; font-weight: 700; background: var(--ad-bg);
  color: var(--ad-muted); border-radius: 6px; margin-right: 10px;
}
.ad-hot-list li:nth-child(-n+3)::before { background: var(--ad-primary); color: #fff; }
.ad-hot-list li a { flex: 1; min-width: 0; font-size: 14px; color: var(--ad-text); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.ad-hot-list li a:hover { color: var(--ad-primary); }
.ad-side-rows { padding: 4px 16px 10px; }

/* ---------- 新闻门户列表 ---------- */
.ad-list .ad-list-item { display: flex; gap: 20px; background: #fff; border: 1px solid var(--ad-line); border-radius: var(--ad-radius); padding: 24px; margin-bottom: 18px; }
.ad-list .ad-list-item:hover { border-color: transparent; transform: translateY(-3px); }
.ad-list .ad-list-pic { flex: 0 0 230px; height: 156px; overflow: hidden; border-radius: var(--ad-radius-sm); }
.ad-list .ad-list-pic img { width: 100%; height: 100%; object-fit: cover; }
.ad-list .ad-list-info { flex: 1; min-width: 0; display: flex; flex-direction: column; }
.ad-list .ad-list-info h3 { font-size: 18px; line-height: 1.5; }
.ad-list .ad-list-info h3 a { color: var(--ad-text); }
.ad-list .ad-list-info h3 a:hover { color: var(--ad-primary); }
.ad-list .ad-list-meta { font-size: 12px; color: #9aa0ad; margin: 8px 0; }
.ad-list .ad-list-meta span { margin-right: 16px; }
.ad-list .ad-list-desc { font-size: 14px; color: var(--ad-muted); line-height: 1.8; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.ad-list .ad-list-more { margin-top: auto; padding-top: 10px; }
.ad-list .ad-list-more a { font-size: 13px; color: var(--ad-primary); font-weight: 700; }
.ad-list .ad-list-more a::after { content: " →"; }

/* 门户日期块样式 */
.ad-news-portal .ad-list-item { align-items: center; }
.ad-news-portal .ad-np-date { flex: 0 0 84px; height: fit-content; background: var(--ad-primary-tint); border-radius: var(--ad-radius-sm); text-align: center; padding: 12px 0 10px; }
.ad-news-portal .ad-np-date b { display: block; font-family: Arial, sans-serif; font-size: 32px; line-height: 1; color: var(--ad-primary); font-weight: 800; }
.ad-news-portal .ad-np-date span { display: block; font-size: 12px; color: var(--ad-muted); margin-top: 5px; }
.ad-news-portal .ad-list-item:hover .ad-np-date { background: var(--ad-red-grad); }
.ad-news-portal .ad-list-item:hover .ad-np-date b { color: #fff; }
.ad-news-portal .ad-list-item:hover .ad-np-date span { color: rgba(255, 255, 255, .8); }
.ad-news-portal .ad-list-item:first-child { border: none; background: var(--ad-ink-soft); color: var(--ad-text); padding: 28px; margin-bottom: 20px; }
.ad-news-portal .ad-list-item:first-child h3 a { color: var(--ad-text); }
.ad-news-portal .ad-list-item:first-child .ad-list-desc { color: #5a6172; }
.ad-news-portal .ad-list-item:first-child .ad-list-meta { color: #8a90a0; }
.ad-news-portal .ad-list-item:first-child .ad-np-date { flex-basis: 96px; background: rgba(22, 23, 29, .05); }
.ad-news-portal .ad-list-item:first-child .ad-np-date b { color: var(--ad-primary); font-size: 40px; }
.ad-news-portal .ad-list-item:first-child .ad-np-date span { color: #7b8190; }
.ad-news-portal .ad-list-item:first-child h3 { font-size: 24px; }
.ad-news-portal .ad-list-item:first-child .ad-list-desc { font-size: 14px; -webkit-line-clamp: 3; }
.ad-news-portal .ad-list-item:first-child .ad-list-more a { color: #ff3300; }
.ad-news-portal .ad-list-item:first-child:hover { transform: translateY(-3px); }
.ad-tag { display: inline-block; font-size: 12px; font-weight: 700; color: #fff; background: var(--ad-primary); border-radius: 999px; padding: 2px 12px; margin-right: 10px; vertical-align: 3px; }
.ad-news-portal .ad-list-item:first-child .ad-tag { background: #ff3300; }

/* ---------- 分页 ---------- */
.ad-pager { text-align: center; margin-top: 38px; }
.ad-pager a, .ad-pager span {
  display: inline-block; min-width: 42px; padding: 10px 14px; margin: 0 3px;
  border: 1px solid var(--ad-line); color: var(--ad-text); font-size: 14px; background: #fff; border-radius: 12px;
}
.ad-pager a:hover { border-color: var(--ad-primary); color: var(--ad-primary); }
.ad-pager .ad-cur { background: var(--ad-red-grad); border-color: transparent; color: #fff; font-weight: 700; }

/* ---------- 详情 ---------- */
.ad-detail-head { padding-bottom: 20px; margin-bottom: 28px; border-bottom: 1px solid var(--ad-line); }
.ad-detail-head h1 { font-size: clamp(24px, 2.2vw, 32px); line-height: 1.5; color: var(--ad-text); }
.ad-detail-meta { margin-top: 14px; font-size: 13px; color: #9aa0ad; }
.ad-detail-meta span { display: inline-block; background: var(--ad-bg); border-radius: 999px; padding: 4px 14px; margin-right: 10px; }
.ad-editor { font-size: 16px; line-height: 2.1; color: var(--ad-text); }
.ad-editor img { max-width: 100%; height: auto; margin: 14px auto; border-radius: var(--ad-radius-sm); }
.ad-editor p { margin: 12px 0; }
.ad-editor table { width: 100% !important; }
.ad-editor table td, .ad-editor table th { border: 1px solid var(--ad-line); padding: 10px 14px; }
.ad-prevnext { margin-top: 36px; background: var(--ad-bg); border-radius: var(--ad-radius); padding: 20px 24px; font-size: 14px; }
.ad-prevnext div { padding: 6px 0; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.ad-prevnext a { color: var(--ad-text); }
.ad-prevnext a:hover { color: var(--ad-primary); }
.ad-prevnext .ad-pn-label { color: var(--ad-muted); margin-right: 8px; }

/* 信任钩子条 */
.ad-hooks { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin-bottom: 26px; }
.ad-hook { background: #fff; border: 1px solid var(--ad-line); border-radius: var(--ad-radius-sm); padding: 18px 16px; text-align: center; }
.ad-hook b { display: block; font-size: 15px; color: var(--ad-text); margin-bottom: 5px; }
.ad-hook b::before { content: "✓"; color: var(--ad-primary); margin-right: 6px; font-weight: 800; }
.ad-hook span { font-size: 12px; color: var(--ad-muted); }
.adv-grid + .ad-hooks { grid-template-columns: repeat(4, 1fr); margin-top: 44px; }

/* 新闻推荐 */
.ad-news-rel { margin-top: 34px; background: #fff; border: 1px solid var(--ad-line); border-radius: var(--ad-radius); padding: 22px 26px; }
.ad-news-rel h3 { font-size: 17px; color: var(--ad-text); margin-bottom: 8px; }
.ad-news-rel h3 i { font-style: normal; display: inline-block; width: 8px; height: 18px; background: var(--ad-red-grad); border-radius: 4px; margin-right: 10px; vertical-align: -2px; }
.ad-news-rel li { display: flex; align-items: center; padding: 12px 0; border-bottom: 1px dashed var(--ad-line); }
.ad-news-rel li:last-child { border-bottom: none; }
.ad-news-rel li a { flex: 1; min-width: 0; font-size: 14px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.ad-news-rel li a::before { content: "→"; color: var(--ad-primary); margin-right: 10px; }
.ad-news-rel li a:hover { color: var(--ad-primary); }
.ad-news-rel li span { flex: 0 0 auto; font-size: 12px; color: #9aa0ad; margin-left: 20px; }

/* ---------- 产品详情 ---------- */
.ad-pro-top { display: grid; grid-template-columns: 500px minmax(0, 1fr); gap: 40px; margin-bottom: 36px; }
.ad-pro-gallery .ad-pro-main { border: 1px solid var(--ad-line); border-radius: var(--ad-radius); height: 400px; overflow: hidden; background: #fff; }
.ad-pro-gallery .ad-pro-main img { width: 100%; height: 100%; object-fit: contain; }
.ad-pro-thumbs { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 12px; }
.ad-pro-thumbs img { width: 70px; height: 70px; object-fit: cover; border: 1px solid var(--ad-line); border-radius: 12px; cursor: pointer; background: #fff; }
.ad-pro-thumbs img.ad-thumb-on { border: 2px solid var(--ad-primary); }
.ad-pro-info h1 { font-size: 26px; line-height: 1.5; color: var(--ad-text); padding-bottom: 16px; border-bottom: 1px solid var(--ad-line); }
.ad-pro-params { margin-top: 18px; }
.ad-pro-params li { display: flex; padding: 12px 0; border-bottom: 1px dashed var(--ad-line); font-size: 14px; }
.ad-pro-params li .ad-p-label { flex: 0 0 100px; color: var(--ad-muted); }
.ad-pro-params li .ad-p-value { flex: 1; color: var(--ad-text); }
.ad-pro-info .ad-pro-actions { margin-top: 28px; display: flex; gap: 16px; }
.ad-pro-tabs { margin-bottom: 24px; }
.ad-pro-tab-title { display: inline-block; background: var(--ad-ink); color: #fff; padding: 12px 32px; font-size: 17px; border-radius: 999px; }
.ad-pro-tab-title i { font-style: normal; color: #ff3300; margin-right: 8px; }

/* 相关产品 */
.ad-related { margin-top: 46px; }
.ad-related h3 { font-size: 20px; color: var(--ad-text); margin-bottom: 22px; }
.ad-related h3 i { font-style: normal; display: inline-block; width: 9px; height: 20px; background: var(--ad-red-grad); border-radius: 4px; margin-right: 10px; vertical-align: -2px; }
.ad-related-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.ad-related-grid .ad-case-item .ad-case-pic { height: 170px; }

/* ---------- 单页正文 ---------- */
.ad-single { max-width: 100%; }

/* ---------- 留言表单 ---------- */
.ad-form { max-width: 820px; background: #fff; border: 1px solid var(--ad-line); border-radius: var(--ad-radius); padding: 36px 38px; }
.ad-form-row { margin-bottom: 22px; }
.ad-form-row label { display: block; font-size: 15px; color: var(--ad-text); margin-bottom: 9px; font-weight: 700; }
.ad-form-row label i { font-style: normal; color: var(--ad-primary); margin-left: 4px; }
.ad-form-row input[type="text"],
.ad-form-row textarea {
  width: 100%; border: 1px solid var(--ad-line); padding: 14px 16px; background: var(--ad-bg); color: var(--ad-text); border-radius: 12px;
}
.ad-form-row input[type="text"]:focus,
.ad-form-row textarea:focus { border-color: var(--ad-primary); background: #fff; }
.ad-form-row textarea { min-height: 150px; resize: vertical; }
.ad-form-code { display: flex; gap: 12px; align-items: center; }
.ad-form-code input { flex: 1; }
.ad-form-code img { height: 48px; border: 1px solid var(--ad-line); border-radius: 10px; cursor: pointer; }

/* ---------- 联系我们 ---------- */
.ad-contact-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; margin-bottom: 34px; }
.ad-contact-card { border: 1px solid var(--ad-line); border-radius: var(--ad-radius); padding: 28px; background: #fff; display: flex; gap: 20px; }
.ad-contact-card:hover { transform: translateY(-4px); }
.ad-contact-card .ad-cc-ico { flex: 0 0 56px; width: 56px; height: 56px; background: var(--ad-red-grad); color: #fff; border-radius: 18px; text-align: center; line-height: 56px; font-size: 22px; }
.ad-contact-card h3 { font-size: 17px; color: var(--ad-text); margin-bottom: 8px; }
.ad-contact-card p { font-size: 14px; color: var(--ad-muted); line-height: 1.9; }
.ad-contact-card .ad-cc-big { font-size: 22px; font-weight: 800; color: var(--ad-primary); font-family: Arial, sans-serif; }

/* ---------- 回顶 ---------- */
.ad-backtop {
  display: none; position: fixed; right: 24px; bottom: 34px; width: 48px; height: 48px;
  background: var(--ad-ink); color: #fff; border: none; border-radius: 16px; cursor: pointer; z-index: 99;
  font-size: 18px; line-height: 48px; text-align: center;
}
.ad-backtop:hover { background: var(--ad-primary); }

/* ---------- 空状态 ---------- */
.ad-empty { border: 1px dashed var(--ad-line); border-radius: var(--ad-radius); padding: 64px 20px; text-align: center; color: var(--ad-muted); background: #fff; }

/* ---------- 滚动渐显 ---------- */
.ad-reveal { opacity: 0; transform: translateY(30px); transition: opacity .65s ease, transform .65s ease; }
.ad-reveal.ad-in { opacity: 1; transform: none; }

/* ==========================================================================
   服务营销页 service.html（主题色 --tc）
   ========================================================================== */
.svc-hero { background: var(--tc, var(--ad-primary)); color: #fff; position: relative; overflow: hidden; }
.svc-hero::after { content: ""; position: absolute; right: -70px; top: -90px; width: 320px; height: 320px; border-radius: 50%; background: rgba(255, 255, 255, .1); }
.svc-hero .ad-wrap { display: flex; align-items: flex-end; justify-content: space-between; gap: 34px; padding-top: 62px; padding-bottom: 56px; position: relative; z-index: 1; }
.svc-crumb { font-size: 13px; color: rgba(255, 255, 255, .78); margin-bottom: 16px; }
.svc-crumb a { color: rgba(255, 255, 255, .78); }
.svc-crumb a:hover { color: #fff; }
.svc-hero h1 { font-size: clamp(36px, 3.6vw, 54px); line-height: 1.25; color: #fff; font-weight: 800; letter-spacing: 2px; }
.svc-hero h1 span { font-size: 15px; color: rgba(255, 255, 255, .72); font-weight: 400; margin-left: 16px; letter-spacing: 4px; text-transform: uppercase; }
.svc-slogan { font-size: 20px; color: #fff; font-weight: 700; margin-top: 14px; letter-spacing: 2px; opacity: .95; }
.svc-hero-bar { width: 72px; height: 6px; background: rgba(255, 255, 255, .9); border-radius: 999px; margin-top: 20px; }
.svc-hero-actions { text-align: right; flex: 0 0 auto; padding-bottom: 8px; }
.svc-hero-tel { font-family: Arial, sans-serif; font-size: 34px; font-weight: 800; color: #fff; line-height: 1.2; }
.svc-hero-sub { font-size: 13px; color: rgba(255, 255, 255, .8); margin: 8px 0 18px; }
.svc-page .svc-hero-btn { background: #fff; border: none; color: var(--tc, var(--ad-primary)); }
.svc-page .svc-hero-btn:hover { color: var(--tc, var(--ad-primary)); }

.svc-intro { padding: 84px 0; }
.svc-intro-grid { display: grid; grid-template-columns: minmax(0, 1fr) 400px; gap: 54px; align-items: start; }
.svc-intro-desc { font-size: 16px; line-height: 2.1; color: var(--ad-muted); margin-top: 8px; }
.svc-intro-tags { display: flex; gap: 16px; margin-top: 30px; flex-wrap: wrap; }
.svc-intro-tags span { background: var(--ad-bg); border: 1px solid var(--ad-line); border-radius: var(--ad-radius-sm); padding: 14px 22px; font-size: 13px; color: var(--ad-muted); }
.svc-intro-tags b { display: block; font-family: Arial, sans-serif; font-size: 20px; color: var(--tc, var(--ad-primary)); }
.svc-points { background: #fff; border: 1px solid var(--ad-line); border-radius: var(--ad-radius); padding: 32px 30px; position: relative; overflow: hidden; }
.svc-points::before { content: ""; position: absolute; top: 0; left: 0; right: 0; height: 6px; background: var(--tc, var(--ad-primary)); }
.svc-points h3 { font-size: 19px; color: var(--ad-text); margin-bottom: 16px; }
.svc-points h3 i { font-style: normal; color: var(--tc, var(--ad-primary)); margin-right: 8px; font-size: 13px; }
.svc-points-txt { font-size: 15px; font-weight: 700; color: var(--ad-text); line-height: 2.1; }
.svc-points-note { font-size: 12px; color: var(--ad-muted); margin: 14px 0 20px; padding-top: 14px; border-top: 1px dashed var(--ad-line); }
.svc-page .svc-points .ad-btn { display: block; text-align: center; background: var(--tc, var(--ad-primary)); }
.svc-page .svc-points .ad-btn:hover { background: var(--tc, var(--ad-primary)); filter: brightness(.9); }

.svc-cases, .svc-adv { padding: 84px 0; background: var(--ad-bg); }
.svc-proc, .svc-rel { padding: 84px 0; }
.svc-cases-more { display: flex; justify-content: center; gap: 16px; margin-top: 36px; }
.svc-page .svc-cases-more .ad-btn-line { color: var(--tc, var(--ad-primary)); border: 1px solid var(--tc, var(--ad-primary)); background: #fff; }
.svc-page .svc-cases-more .ad-btn-line:hover { background: var(--tc, var(--ad-primary)); color: #fff; }
.svc-page .svc-cases-more .ad-btn:not(.ad-btn-line) { background: var(--tc, var(--ad-primary)); }
.svc-page .svc-cases-more .ad-btn:not(.ad-btn-line):hover { background: var(--tc, var(--ad-primary)); filter: brightness(.9); }
.svc-adv .ad-adv-item::before { background: var(--tc, var(--ad-primary)); }

.svc-rel-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.svc-rel-item { border: 1px solid var(--ad-line); background: #fff; border-radius: var(--ad-radius-sm); padding: 30px 20px; text-align: center; }
.svc-rel-item b { display: block; font-size: 18px; color: var(--ad-text); margin-bottom: 8px; }
.svc-rel-item span { font-size: 12px; color: var(--ad-muted); }
.svc-rel-item:hover { border-color: transparent; background: var(--ad-ink); transform: translateY(-4px); }
.svc-rel-item:hover b { color: #fff; }
.svc-rel-item:hover span { color: #ff3300; }

.svc-cta { background: var(--tc, var(--ad-primary)); color: #fff; padding: 30px 0 84px; }
.svc-cta .ad-wrap { display: flex; align-items: center; justify-content: space-between; gap: 24px; border-radius: 28px; padding: 48px 56px; background: rgba(255, 255, 255, .14); border: 1px solid rgba(255, 255, 255, .3); }
.svc-cta h3 { font-size: clamp(22px, 2.2vw, 32px); line-height: 1.4; font-weight: 800; }
.svc-cta p { font-size: 14px; margin-top: 8px; color: rgba(255, 255, 255, .9); }
.svc-cta .ad-cta-actions { display: flex; align-items: center; gap: 20px; }
.svc-cta .ad-cta-tel { font-size: 28px; font-weight: 800; font-family: Arial, sans-serif; }
.svc-cta .ad-btn { background: #fff; color: var(--tc, var(--ad-primary)); }
.svc-cta .ad-btn:hover { color: var(--tc, var(--ad-primary)); }

/* ==========================================================================
   关于我们：时间线 + 服务理念
   ========================================================================== */
.ad-about-extra { margin-top: 46px; }
.ad-tl { border-left: 3px solid var(--ad-primary-tint); margin: 14px 0 0 10px; padding-left: 30px; }
.ad-tl-item { position: relative; padding-bottom: 34px; }
.ad-tl-item:last-child { padding-bottom: 8px; }
.ad-tl-item::before { content: ""; position: absolute; left: -39px; top: 6px; width: 14px; height: 14px; background: var(--ad-primary); border: 3px solid #fff; border-radius: 50%; }
.ad-tl-year { display: inline-block; font-size: 15px; font-weight: 800; color: var(--ad-primary); background: var(--ad-primary-tint); border-radius: 999px; padding: 4px 16px; letter-spacing: 1px; }
.ad-tl-item h3 { font-size: 17px; color: var(--ad-text); margin: 10px 0 6px; }
.ad-tl-item p { font-size: 14px; color: var(--ad-muted); line-height: 1.9; }
.ad-phil-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.ad-phil { background: #fff; border: 1px solid var(--ad-line); border-radius: var(--ad-radius); padding: 30px 24px; text-align: center; }
.ad-phil i { font-style: normal; display: inline-flex; align-items: center; justify-content: center; width: 58px; height: 58px; background: var(--ad-red-grad); color: #fff; border-radius: 18px; font-size: 24px; font-weight: 800; margin-bottom: 16px; }
.ad-phil h3 { font-size: 17px; color: var(--ad-text); margin-bottom: 8px; }
.ad-phil p { font-size: 13px; color: var(--ad-muted); line-height: 1.8; }
.ad-phil:hover { transform: translateY(-5px); }

/* ==========================================================================
   联系我们：到访指引 + 服务承诺
   ========================================================================== */
.ad-visit-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.ad-visit-card { background: #fff; border: 1px solid var(--ad-line); border-radius: var(--ad-radius); padding: 28px; position: relative; overflow: hidden; }
.ad-visit-card::before { content: ""; position: absolute; top: 0; left: 0; right: 0; height: 6px; background: var(--ad-red-grad); }
.ad-visit-card h3 { font-size: 17px; color: var(--ad-text); margin-bottom: 12px; }
.ad-visit-card p { font-size: 14px; color: var(--ad-muted); line-height: 1.9; }
.ad-promise-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.ad-promise { background: var(--ad-primary-tint); border-radius: var(--ad-radius-sm); padding: 24px 16px; text-align: center; font-size: 13px; color: var(--ad-muted); line-height: 1.7; }
.ad-promise b { display: block; color: var(--ad-text); font-size: 16px; margin-bottom: 8px; }
.ad-promise b::before { content: "✓ "; color: var(--ad-primary); font-weight: 800; }

/* ==========================================================================
   在线留言：流程 + FAQ
   ========================================================================== */
.ad-msg-steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.ad-msg-step { background: #fff; border: 1px solid var(--ad-line); border-radius: var(--ad-radius-sm); padding: 26px 20px; text-align: center; }
.ad-msg-step .ad-ps-no { display: block; font-family: Arial, sans-serif; font-size: 30px; font-weight: 800; line-height: 1; color: var(--ad-primary); margin-bottom: 12px; }
.ad-msg-step h3 { font-size: 17px; color: var(--ad-text); margin-bottom: 6px; }
.ad-msg-step p { font-size: 13px; color: var(--ad-muted); line-height: 1.7; }
.ad-faq { margin-top: 40px; }
.ad-faq-item { background: #fff; border: 1px solid var(--ad-line); border-radius: var(--ad-radius-sm); margin-bottom: 14px; overflow: hidden; }
.ad-faq-item h3 { font-size: 16px; color: var(--ad-text); padding: 15px 20px; background: var(--ad-bg); border-bottom: 1px solid var(--ad-line); }
.ad-faq-item h3::before { content: "Q"; display: inline-flex; align-items: center; justify-content: center; width: 24px; height: 24px; background: var(--ad-red-grad); color: #fff; border-radius: 8px; font-size: 13px; font-family: Arial, sans-serif; margin-right: 12px; vertical-align: -5px; }
.ad-faq-item p { padding: 16px 20px; font-size: 14px; color: var(--ad-muted); line-height: 1.9; }
.ad-faq-item p::before { content: "A"; display: inline-flex; align-items: center; justify-content: center; width: 24px; height: 24px; border: 1px solid var(--ad-primary); color: var(--ad-primary); border-radius: 8px; font-size: 13px; font-family: Arial, sans-serif; margin-right: 12px; vertical-align: -5px; }

/* ---------- 我们的优势页 ---------- */
.adv-grid { counter-reset: adv; display: grid; grid-template-columns: 1fr 1fr; gap: 26px; }
.adv-card { counter-increment: adv; display: flex; gap: 24px; align-items: flex-start; background: #fff; border: 1px solid var(--ad-line); border-radius: var(--ad-radius-sm); padding: 28px 26px; transition: transform .25s; }
.adv-card:hover { transform: translateY(-4px); }
.adv-fig { position: relative; flex: 0 0 auto; }
.adv-fig img { width: 108px; height: 108px; object-fit: cover; border-radius: 18px; display: block; }
.adv-no { position: absolute; right: -10px; bottom: -10px; width: 40px; height: 40px; border-radius: 14px; background: var(--ad-red-grad); color: #fff; font-family: Arial, sans-serif; font-size: 16px; font-weight: 800; display: flex; align-items: center; justify-content: center; }
.adv-no::before { content: counter(adv, decimal-leading-zero); }
.adv-txt h3 { font-size: 20px; color: var(--ad-text); margin-bottom: 10px; }
.adv-txt h3 a { color: inherit; }
.adv-txt h3 a:hover { color: var(--ad-primary); }
.adv-content { font-size: 14px; color: var(--ad-muted); line-height: 1.9; }
.adv-content p { margin-bottom: 8px; }
.adv-content p:last-child { margin-bottom: 0; }

/* ==========================================================================
   响应式
   ========================================================================== */
@media (max-width: 1200px) {
  .ad-adv-grid { grid-template-columns: repeat(2, 1fr); }
  .ad-case-grid { grid-template-columns: repeat(3, 1fr); }
  .ad-group-grid { grid-template-columns: 1fr; }
  .ad-about .ad-wrap { grid-template-columns: 520px 1fr; gap: 40px; }
  .ad-mega-panel .ad-wrap { grid-template-columns: 1fr 1fr 1fr; }
  .ad-mega-cta { display: none; }
  .ad-layout { grid-template-columns: 260px 1fr; }
  .ad-pro-top { grid-template-columns: 420px 1fr; }
  .svc-intro-grid { grid-template-columns: 1fr 340px; gap: 34px; }
}

@media (max-width: 991px) {
  .adv-grid { grid-template-columns: 1fr; }
  .ad-hero-msgs { min-height: 200px; }
  .ad-hero-msg h2 { font-size: 22px; }
  .ad-hero-msg p { font-size: 13px; }
  .ad-wrap { padding: 0 16px; }
  .ad-header > .ad-wrap { height: 68px; }
  .ad-nav-tel, .ad-nav-cta { display: none; }
  .ad-menu-btn { display: block; }
  .ad-nav-menu { display: none; }
  .ad-topbar .ad-top-right { display: none; }
  .ad-section { padding: 56px 0; }
  .ad-sec-head { margin-bottom: 34px; }
  .ad-stats { padding: 20px 0 0; }
  .ad-stats .ad-wrap { grid-template-columns: 1fr 1fr; }
  .ad-stat b { font-size: 40px; }
  .ad-stat + .ad-stat::before { display: none; }
  .ad-about .ad-wrap { grid-template-columns: 1fr; gap: 40px; }
  .ad-about-fig img { height: 320px; }
  .ad-news-grid { grid-template-columns: minmax(0, 1fr); }
  .ad-footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
  .ad-cta .ad-wrap { flex-direction: column; gap: 22px; text-align: center; padding: 40px 28px; border-radius: 22px; }
  .ad-cta { padding: 24px 0 56px; }
  .ad-layout { grid-template-columns: 1fr; }
  .ad-pro-top { grid-template-columns: 1fr; }
  .ad-case-grid { grid-template-columns: repeat(2, 1fr); }
  .ad-proc-track { grid-template-columns: repeat(3, 1fr); }
  .ad-srv-note { flex-direction: column; text-align: center; gap: 16px; padding: 22px; }
  .ad-phil-grid { grid-template-columns: repeat(2, 1fr); }
  .ad-visit-grid { grid-template-columns: 1fr; }
  .ad-promise-grid { grid-template-columns: repeat(2, 1fr); }
  .ad-hooks { grid-template-columns: 1fr; }
  .adv-grid + .ad-hooks { grid-template-columns: 1fr; }

  /* 服务营销页 */
  .svc-hero .ad-wrap { flex-direction: column; align-items: flex-start; gap: 26px; padding-top: 44px; padding-bottom: 40px; }
  .svc-hero-actions { text-align: left; }
  .svc-hero h1 { font-size: 32px; }
  .svc-intro, .svc-cases, .svc-adv, .svc-proc, .svc-rel { padding: 52px 0; }
  .svc-intro-grid { grid-template-columns: 1fr; gap: 32px; }
  .svc-rel-grid { grid-template-columns: repeat(2, 1fr); }
  .svc-cta { padding: 20px 0 56px; }
  .svc-cta .ad-wrap { flex-direction: column; text-align: center; padding: 34px 24px; }

  /* 内页横幅 */
  .ad-pagebanner { padding: 44px 0 40px; }

  /* 抽屉导航 */
  .ad-drawer.ad-show { display: block; position: fixed; top: 68px; left: 0; right: 0; bottom: 0; background: #fff; z-index: 99; overflow-y: auto; }
  .ad-drawer > ul > li { border-bottom: 1px solid var(--ad-line); }
  .ad-drawer > ul > li > a { display: block; padding: 16px 22px; color: var(--ad-text); font-size: 17px; font-weight: 600; }
  .ad-drawer > ul > li > a.ad-active { color: var(--ad-primary); }
  .ad-drawer a:hover { color: var(--ad-primary); }
  .ad-drawer .ad-drawer-tel { padding: 20px 22px; color: var(--ad-primary); font-size: 19px; font-weight: 800; }
}

@media (max-width: 768px) {
  .ad-hero-float { display: none; }
  .ad-hero::after { display: none; }
  .ad-list .ad-list-item { flex-direction: column; }
  .ad-list .ad-list-pic { width: 100%; flex-basis: auto; height: 190px; }
  .ad-news-portal .ad-list-item { align-items: stretch; }
  .ad-contact-grid { grid-template-columns: 1fr; }
  .ad-related-grid { grid-template-columns: repeat(2, 1fr); }
  .ad-case-grid.ad-cols3 { grid-template-columns: repeat(2, 1fr); }
  .ad-detail-head h1 { font-size: 22px; }
  .ad-hero .swiper-button-prev, .ad-hero .swiper-button-next { display: none; }
  .ad-form { padding: 26px 22px; }
  /* 移动端隐藏页脚服务项目与快捷导航 */
  .ad-f-srv, .ad-f-quick { display: none; }
  .ad-footer-grid { grid-template-columns: 1fr; }
  .ad-msg-steps { grid-template-columns: 1fr; }
  .ad-pb-actions { display: none; }
}

@media (max-width: 480px) {
  .ad-marquee, .ad-marquee-track span { height: 42px; }
  .ad-marquee-track span { padding: 0 18px; font-size: 13px; letter-spacing: 1px; }
  .ad-stat { padding: 24px 8px; }
  .ad-stat b { font-size: 34px; }
  .ad-case-grid { grid-template-columns: 1fr 1fr; gap: 12px; }
  .ad-case-item .ad-case-pic { height: 140px; }
  .ad-case-grid.ad-cols3 { grid-template-columns: 1fr; }
  .ad-adv-grid { grid-template-columns: 1fr; }
  .ad-proc-track { grid-template-columns: repeat(2, 1fr); }
  .svc-rel-grid { grid-template-columns: 1fr 1fr; gap: 12px; }
  .svc-cases-more { flex-direction: column; align-items: stretch; }
  .svc-hero-tel { font-size: 26px; }
  .ad-news-feat { flex-direction: column; }
  .ad-news-feat .ad-news-feat-pic { width: 100%; flex-basis: auto; }
  .ad-news-portal .ad-np-date { flex-basis: 64px; }
  .ad-news-portal .ad-list-item:first-child .ad-np-date { flex-basis: 68px; }
  .ad-news-portal .ad-list-item:first-child .ad-np-date b { font-size: 30px; }
  .ad-phil-grid { grid-template-columns: 1fr; }
  .ad-promise-grid { grid-template-columns: 1fr; }
  .ad-logo-text .ad-logo-cn { font-size: 24px; }
  .ad-group-card { padding: 26px 22px 18px; }
  .ad-group-card h3 { font-size: 24px; }
  .ad-g-item { flex-wrap: wrap; gap: 4px; }
  .ad-g-item span { white-space: normal; }
}