/* ==========================================================
   麒麟港生活 - 商业企服页（business.html）专属样式
   依赖：style.css（变量/基础） + common.css（公共头部/尾部）
   ========================================================== */

/* 通用板块标题：英文 Times + 小副标题（与 identity .id-head 同风格） */
.bu-head { text-align: center; }
.bu-head h2 {
  font-family: var(--title-font);
  font-size: 40px; font-weight: 400; letter-spacing: 1px;
  line-height: 1.4;
  color: #49423a;
}
.bu-head p { margin-top: 2px; font-size: 14px; letter-spacing: 3px; color: #49423c; }
.bu-head.light h2 { color: #fff; }
.bu-head.light p { color: rgba(255,255,255,.72); }

/* 箭头按钮通用 hover：箭头右滑，移开复位 */
.bub-btn i, .svc-btn i, .bc-btn i {
  font-style: normal; display: inline-block;
  transition: transform .3s ease;
}
.bub-btn:hover i, .svc-btn:hover i, .bc-btn:hover i { transform: translateX(6px); }

/* ======================= P1：Banner ======================= */
.bu-banner {
  /* 头部为 fixed(88px)，banner 整体下移，避免顶部被导航遮挡 */
  margin-top: 88px;
  min-height: 500px;
  display: flex; align-items: center;
  text-align: center;
  background:
    /* linear-gradient(rgba(13,26,50,.30), rgba(13,26,50,.38)), */
    url("../images/sub/business/banner.jpg") center/cover no-repeat;
}
.bu-banner .container { width: 100%; }
.bub-tag {
  display: flex; align-items: center; justify-content: center; gap: 18px;
  font-family: var(--title-font);
  font-size: 15px; letter-spacing: 5px; color: #49423a;
}
.bub-tag i { display: block; width: 64px; height: 1px; background: rgba(198,171,116,.6); }
.bu-banner h1 {
  margin-top: 24px;
  font-family: "Times New Roman", "STSong", "SimSun", "NSimSun", var(--cn-font);
  font-size: 42px; font-weight: 700; letter-spacing: 3px;
  color: #49423a;
  text-shadow: 0.06px 0 0 #49423a, -0.06px 0 0 #49423a;
}
.bub-sub {
  max-width: 860px; margin: 20px auto 0;
  font-size: 15px; letter-spacing: 1px; line-height: 2.1;
  color: #49423a;
}
.bub-btn {
  display: inline-block; margin-top: 40px; padding: 13px 40px;
  background: linear-gradient(100deg, #cfb791, #f0e6cb 55%, #cfb791);
  border-radius: 8px;
  color: #49423a; font-size: 16px; font-weight: 700; letter-spacing: 3px;
  box-shadow: 0 4px 12px rgba(0,0,0,.08);
  transition: filter .25s, transform .25s;
}
.bub-btn:hover { filter: brightness(1.1); transform: translateY(-2px); }

/* ======================= P2：Why Us（三大风险） ======================= */
.bu-why { background: #f9f8f3; padding: 84px 0 96px; }
.why-body { display: flex; gap: 70px; align-items: flex-start; margin-top: 64px; }
.why-left { width: 36%; flex: none; }
.why-left h3 {
  font-family: "Times New Roman", "STSong", "SimSun", "NSimSun", var(--cn-font);
  font-size: 30px; font-weight: 600; line-height: 1.85; color: #49423a;
}
.why-left h3 .gd { color: var(--gold-deep); font-size: 38px; }
.why-pic { margin-top: 26px; text-align: center; }
.why-pic img { max-width: 320px; width: 100%; height: auto; }
.risk-grid {
  flex: 1; display: grid; grid-template-columns: repeat(3, 1fr);
  gap: 24px; padding-top: 22px;
}
.risk-card {
  position: relative; display: flex; flex-direction: column;
  padding: 52px 62px 30px;
  background: #fff; border-radius: 12px;
  box-shadow: 0 10px 28px rgba(17,36,67,.08);
  transition: transform .3s ease, box-shadow .3s ease;
}
.risk-card:hover { transform: translateY(-6px); box-shadow: 0 18px 38px rgba(17,36,67,.14); }
/* 金色 X 圆徽：压在卡片顶部居中 */
.rw-x {
  position: absolute; top: -22px; left: 50%; transform: translateX(-50%);
  width: 44px; height: 44px; border-radius: 50%;
  background: linear-gradient(140deg, #c2a374, #a8874f);
  color: #fff; font-size: 17px; font-weight: 700; line-height: 44px; text-align: center;
  box-shadow: 0 6px 14px rgba(178,142,82,.4);
}
.risk-card h4 {
  min-height: 52px; display: flex; align-items: center; justify-content: center;
  font-size: 16px; font-weight: 700; letter-spacing: 1px; line-height: 1.6;
  color: #49423a; text-align: center;
}
.risk-card .rc-line { margin-top: 18px; border-top: 1px solid #e5e8ee; }
.risk-card p { margin-top: 16px; font-size: 13px; line-height: 2.05; color: #44526b; text-align: justify; }

/* ======================= P3：Corporate Services（服务矩阵） ======================= */
.bu-svc { background: #fff; padding: 84px 0 96px; }
.svc-big {
  margin-top: 44px; text-align: center;
  font-family: "Times New Roman", "STSong", "SimSun", "NSimSun", var(--cn-font);
  font-size: 34px; font-weight: 600; letter-spacing: 3px;
  color: #9e7935;
}
.svc-grid {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 26px;
  margin-top: 52px;
}
.svc-card {
  position: relative; display: flex; flex-direction: column;
  min-height: 400px; padding: 42px 26px 28px;
  background: #645140; border-radius: 14px; overflow: hidden;
  text-align: center;
  box-shadow: 0 14px 34px rgba(17,36,67,.16);
  transition: transform .3s ease, box-shadow .3s ease;
}
.svc-card:hover { transform: translateY(-8px); box-shadow: 0 22px 44px rgba(17,36,67,.26); }
.svc-ico { width: 46px; height: 46px; margin: 0 auto; }
.svc-ico svg {
  width: 100%; height: 100%;
  fill: none; stroke: var(--gold-light); stroke-width: 1.7;
  stroke-linecap: round; stroke-linejoin: round;
}
.svc-card h4 {
  margin-top: 18px;
  font-size: 21px; font-weight: 700; letter-spacing: 1.5px; line-height: 1.6;
  color: var(--gold-light);
}
.svc-card p {
  margin-top: 16px; font-size: 13px; line-height: 2.05;
  color: rgba(255,255,255,.82); text-align: justify;  display: inline-block; width: 76%; margin: auto;
}
.svc-foot { margin-top: auto; padding-top: 20px; position: relative; }
.svc-foot::before {
  content: ""; position: absolute; top: 0; left: 6%; right: 6%; height: 1px;
  background: rgba(255,255,255,.22);
}
.svc-btn {
  display: flex; align-items: center; justify-content: space-between;
  padding: 9px 16px; border-radius: 4px;
  background: linear-gradient(100deg, #e6d3a9, #e6d3a9);
  color: #645140; font-size: 13px; font-weight: 600; letter-spacing: 1px;
  transition: background .3s ease, filter .3s ease; margin: auto; width: 86%;
}
/* 默认金色实底；鼠标经过整体变淡（浅一档金） */
.svc-btn:hover { background: linear-gradient(100deg, #d6bd92, #ecd9b2); }

/* ======================= P4：18-Month Timeline（SVG 时间轴） ======================= */
.bu-tl {
  background:
    /* linear-gradient(rgba(13,26,50,.30), rgba(13,26,50,.30)), */
    url("../images/sub/business/bg1.jpg") center/cover no-repeat;
  padding: 88px 0 40px;
}
.tl-title {
  margin-top: 48px; text-align: center;
  font-family: "Times New Roman", "STSong", "SimSun", "NSimSun", var(--cn-font);
  font-size: 30px; font-weight: 600; letter-spacing: 2px;
  color: #d9b787;
}
.tl-svg-wrap { max-width: 1120px; margin: 26px auto 0; }
.tl-svg { display: block; width: 100%; height: auto; }
/* 金色波浪主路径 */
.tl-path {
  fill: none; stroke: #d3b581; stroke-width: 2.5; stroke-linecap: round;
  filter: drop-shadow(0 0 4px rgba(211,181,129,.5));
}
/* 4 个节点（按 P4 设计图，由内到外）：白色圆心(+金圈) → 蓝色背景圆(+金圈) */
.tl-node {
  fill: #fdfdfa;
  filter: drop-shadow(0 4px 9px rgba(0,0,0,.4));
}
/* 金色圈（白色圆心与蓝色背景圆各一圈） */
.tl-ring {
  fill: none; stroke: #c9a878; stroke-width: 1.6;
}
/* 内圈（白心外缘的金圈）稍粗一点 */
.tl-ring-in { stroke-width: 2.8; }
/* 蓝色背景圆（外层，外缘带金圈） */
.tl-bg {
  fill: #7a6955;
}
.tl-no {
  font-family: var(--title-font); font-size: 15px; font-weight: 700;
  fill: #49423a; text-anchor: middle;
}
/* SVG 内文字 */
.tl-svg text { font-family: var(--cn-font); }
.tl-svg .st-no { font-size: 14px; letter-spacing: 1px; fill: var(--gold-light); font-family: var(--title-font); }
.tl-svg .st-h  { font-size: 16px; font-weight: 700; letter-spacing: 1px; fill: #fff;  }
.tl-svg .st-p  { font-size: 13px; fill: rgba(255,255,255,.78); }
/* 移动端纵向列表（<992px 显示） */
.tl-list { display: none; }

/* ======================= P5：The Experts（团队） ======================= */
.bu-exp { background: #f0e9df; padding: 84px 0 96px; }
.exp-title {
  margin-top: 48px; text-align: center;
  font-family: "Times New Roman", "STSong", "SimSun", "NSimSun", var(--cn-font);
  font-size: 30px; font-weight: 600; letter-spacing: 3px;
  color: #49423a;
}
.exp-grid {
  display: grid; grid-template-columns: repeat(2, 1fr);
  gap: 52px 72px;
  max-width: 880px; margin: 52px auto 0;
}
.exp-pic {
  position: relative; aspect-ratio: 447 / 471;
  background: #d9d9d9; overflow: hidden; border-radius: 10px;
}
.exp-pic img {
  width: 100%; height: 100%; object-fit: cover; display: block;
  transition: transform .45s ease;
}
/* 参照 identity「麒麟資深規劃團隊」：鼠标放上去人物轻微放大 */
.exp-card:hover .exp-pic img { transform: scale(1.06); }
/* 底部渐变遮罩（同源 sbg.png 效果的 CSS 实现，无需外部图片） */
.exp-shade {
  position: absolute; left: 0; right: 0; bottom: 0;
  height: 34%; pointer-events: none;
  background: linear-gradient(to top, rgba(17,36,67,.42), rgba(17,36,67,0));
}
.exp-name {
  margin-top: 14px;
  font-family: var(--title-font); font-size: 24px; letter-spacing: 1px;
  color: var(--gold-deep);
}
.exp-role { margin-top: 3px; font-size: 15px; font-weight: 600; color: #49423a; }
.exp-panel {
  max-width: 1000px; margin: 72px auto 0; padding: 52px 48px 48px;
  background: #49423a; border-radius: 16px; text-align: center;
}
.exp-panel h3 {
  font-family: "Times New Roman", "STSong", "SimSun", "NSimSun", var(--cn-font);
  font-size: 26px; font-weight: 600; letter-spacing: 3px;
  color: var(--gold-light);
}
.exp-panel .ep-desc {
  max-width: 860px; margin: 16px auto 0;
  font-size: 14px; line-height: 2; color: rgba(255,255,255,.78);
}
.exp-cols { display: flex; justify-content: center; gap: 90px; margin-top: 38px; text-align: left; }
.exp-col .ec-head { display: flex; align-items: center; gap: 10px; font-size: 16px; font-weight: 600; color: var(--gold-light); }
.exp-col .ec-head svg { width: 20px; height: 20px; fill: none; stroke: var(--gold-light); stroke-width: 1.6; stroke-linecap: round; stroke-linejoin: round; }
.exp-col ul { margin-top: 14px; }
.exp-col li { font-size: 14px; line-height: 2.2; color: rgba(255,255,255,.85); }

/* ======================= P6：Success Cases（案例） ======================= */
.bu-cases { background: #f0e9df; padding: 84px 0 100px; }
.case3-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 30px;
  max-width: 1160px; margin: 56px auto 0;
}
.bc-card {
  position: relative; overflow: hidden;
  background: #fff; border-radius: 14px; padding: 38px 34px 34px;
  box-shadow: 0 14px 34px rgba(17,36,67,.09);
  display: flex; flex-direction: column;
}
.bc-card::after {
  content: ""; position: absolute; right: -50px; top: -50px; width: 230px; height: 230px;
  background: radial-gradient(circle, rgba(17,36,67,.05) 0%, rgba(17,36,67,0) 70%);
  pointer-events: none;
}
.bc-top { display: flex; align-items: baseline; gap: 8px; color: var(--gold-deep); }
.bc-top .num { font-family: var(--title-font); font-size: 44px; font-weight: 700; line-height: 1; }
.bc-top .unit { font-size: 16px; font-weight: 700; }
.bc-card h3 {
  margin-top: 22px; min-height: 64px;
  font-size: 20px; font-weight: 700; letter-spacing: 1px; line-height: 1.65;
  color: #49423a;
}
.bc-card .bc-desc { margin-top: 14px; font-size: 14px; line-height: 2.05; color: #49423a; text-align: justify; }
.bc-line { margin-top: 24px; border-top: 1px solid #e5e8ee; }
.bc-btn {
  margin-top: 22px;
  display: flex; align-items: center; justify-content: space-between;
  padding: 6px 18px; border-radius: 6px;
  background: linear-gradient(100deg, #e8d2a9, #f0deb8);
  color: #49423a; font-size: 13px; font-weight: 600; letter-spacing: 2px;
  transition: filter .25s;
}
.bc-btn:hover { filter: brightness(1.07); }


/* ==========================================================
   响应式
   ========================================================== */
@media (max-width: 1200px) {
  .svc-grid { grid-template-columns: repeat(2, 1fr); }
  .risk-grid { grid-template-columns: repeat(3, 1fr); gap: 18px; }
}

@media (max-width: 992px) {
  .bu-banner { min-height: 440px; }
  .why-body { flex-direction: column; gap: 56px; }
  .why-left { width: 100%; }
  .why-left h3 br { display: none; }
  .risk-grid { grid-template-columns: 1fr; gap: 40px; max-width: 560px; margin: 0 auto; width: 100%; }
  .risk-card h4 { min-height: 0; }

  /* 时间轴：H5 退化为纵向列表 */
  .tl-svg-wrap { display: none; }
  .tl-list { display: block; max-width: 560px; margin: 30px auto 0; }
  .tl-list li { position: relative; padding-left: 20px; margin-bottom: 30px; }
  .tl-list li::before {
    content: ""; position: absolute; left: 0; top: 8px;
    width: 9px; height: 9px; border-radius: 50%;
    background: #fdfdfa; border: 2px solid #c9a878;
    box-shadow: 0 0 6px rgba(211,181,129,.6);
  }
  .tl-list li:last-child { margin-bottom: 0; }
  .tl-list .st-no { font-family: var(--title-font); font-size: 14px; letter-spacing: 2px; color: var(--gold-light); }
  .tl-list h4 { margin-top: 4px; font-size: 16px; font-weight: 700; color: #dac79f; }
  .tl-list p { margin-top: 8px; font-size: 13px; line-height: 1.9; color: rgba(255,255,255,.78); }

  .exp-grid { gap: 40px 36px; }
  .exp-cols { flex-direction: column; align-items: flex-start; gap: 30px; max-width: 420px; margin-left: auto; margin-right: auto; }
  .case3-grid { grid-template-columns: 1fr; max-width: 560px; margin-left: auto; margin-right: auto; }
  .bc-card h3 { min-height: 0; }
}

@media (max-width: 640px) {
  .bu-banner { margin-top: 68px; min-height: 420px; }
  .bu-banner h1 { font-size: 26px; letter-spacing: 2px; }
  .bub-sub { font-size: 13.5px; padding: 0 4%; }
  .bub-btn { margin-top: 32px; padding: 12px 32px; font-size: 15px; }
  .bu-head h2 { font-size: 30px; }

  .bu-why { padding: 56px 0 64px; }
  .why-left h3 { font-size: 24px; }
  .why-pic img { max-width: 250px; }
  .risk-grid { padding-top: 0; margin-top: 0; }
  .risk-card { padding: 46px 20px 26px; }

  .bu-svc { padding: 56px 0 64px; }
  .svc-big { margin-top: 32px; font-size: 25px; }
  .svc-grid { grid-template-columns: 1fr; gap: 20px; margin-top: 36px; }
  .svc-card { min-height: 0; }

  .bu-tl { padding: 60px 0 30px; }
  .tl-title { margin-top: 32px; font-size: 23px; }

  .bu-exp { padding: 56px 0 64px; }
  .exp-title { margin-top: 32px; font-size: 24px; }
  .exp-grid { grid-template-columns: repeat(2, 1fr); gap: 28px 14px; }
  .exp-name { font-size: 20px; }
  .exp-role { font-size: 13px; }
  .exp-panel { margin-top: 48px; padding: 40px 24px; }
  .exp-panel h3 { font-size: 21px; }

  .bu-cases { padding: 56px 0 64px; }
  .case3-grid { margin-top: 36px; }
  .bc-card { padding: 30px 22px; }
}