/* ===== 趋势文章页 共享样式 ===== */
* { margin:0; padding:0; box-sizing:border-box; }

body {
  font-family: "PingFang SC","Microsoft Yahei",sans-serif;
  background: #f0f1f5;
  color: #263764;
}

/* ---- 导航 ---- */
header {
  display: flex;
  flex-direction: row;
  justify-content: space-between;
  align-items: center;
  padding: 0 0.555556rem;
  position: sticky;
  top: 0;
  width: 100%;
  height: 0.555556rem;
  z-index: 9999;
  background: radial-gradient(100% 100% at 0% 0%, rgba(255,255,255,0.4), rgba(255,255,255,0)) !important;
  backdrop-filter: blur(24px) !important;
}
header > a { color: #7239ff !important; }
.logo img { height: 0.388889rem; }
nav {
  display: flex;
  align-items: center;
  gap: 0.027778rem;
  margin: 0 0.138889rem;
}
nav a {
  font-size: 0.111111rem;
  color: rgba(38,55,100,0.7) !important;
  text-decoration: none;
  font-weight: 500;
}
nav a div {
  padding: 0.055556rem 0.138889rem;
  border-radius: 0.138889rem;
  transition: color 0.22s, background 0.22s;
  cursor: pointer;
  letter-spacing: 0.06em;
  position: relative;
  white-space: nowrap;
}
nav a div::after {
  content:'';
  position:absolute;
  bottom:0.027778rem;
  left:50%;
  transform:translateX(-50%);
  width:0;
  height:0.013889rem;
  background:linear-gradient(90deg,#7239ff,#a855f7);
  border-radius:1px;
  transition:width 0.25s;
}
nav a div:hover { color:#7239ff !important; background:rgba(114,57,255,0.06); }
nav a div:hover::after { width:calc(100% - 0.277778rem); }
nav a.nav-ai div {
  color:#0891b2 !important;
  background:linear-gradient(135deg,rgba(6,182,212,0.1),rgba(168,85,247,0.08));
  border:1px solid rgba(6,182,212,0.22);
}
nav a.nav-ai div:hover { background:linear-gradient(135deg,rgba(6,182,212,0.18),rgba(168,85,247,0.14)); border-color:rgba(6,182,212,0.45); }
.you a {
  display:inline-flex;
  align-items:center;
  padding:0.055556rem 0.222222rem;
  border-radius:2rem;
  background:linear-gradient(135deg,#7239ff,#a855f7);
  color:#fff !important;
  font-size:0.111111rem;
  font-weight:600;
  letter-spacing:0.12em;
  transition:all 0.25s;
  box-shadow:0 0.027778rem 0.083333rem rgba(114,57,255,0.38);
  text-decoration:none;
  white-space:nowrap;
}
.you a:hover { transform:translateY(-0.013889rem); box-shadow:0 0.041667rem 0.166667rem rgba(114,57,255,0.55); }

/* ---- 文章英雄区 ---- */
.article-hero {
  position: relative;
  margin: 0.194444rem 0.555556rem 0;
  border-radius: 0.277778rem;
  min-height: 2.5rem;
  overflow: hidden;
  display: flex;
  align-items: flex-end;
  padding: 0.555556rem 0.694444rem;
  background: linear-gradient(140deg, #06091c 0%, #0e1336 45%, #100820 100%);
}
.article-hero-bg {
  position: absolute;
  inset: 0;
  overflow: hidden;
  pointer-events: none;
}
.article-hero-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(0.555556rem);
}
.article-hero-orb-1 {
  width: 3rem; height: 3rem;
  top: -0.8rem; left: -0.5rem;
  opacity: 0.55;
}
.article-hero-orb-2 {
  width: 2rem; height: 2rem;
  bottom: -0.4rem; right: 0.5rem;
  background: radial-gradient(circle, rgba(6,182,212,0.45), transparent 65%);
  opacity: 0.6;
}
.article-hero-grid {
  position: absolute;
  inset: 0;
  background-image: linear-gradient(rgba(255,255,255,0.035) 1px, transparent 1px),
    linear-gradient(to right, rgba(255,255,255,0.035) 1px, transparent 1px);
  background-size: 0.555556rem 0.555556rem;
  -webkit-mask-image: radial-gradient(ellipse 80% 70% at 40% 60%, black 30%, transparent 100%);
  mask-image: radial-gradient(ellipse 80% 70% at 40% 60%, black 30%, transparent 100%);
}
.article-hero-content {
  position: relative;
  z-index: 2;
}
.article-hero-back {
  display: inline-flex;
  align-items: center;
  gap: 0.055556rem;
  font-size: 0.083333rem;
  color: rgba(255,255,255,0.5) !important;
  letter-spacing: 0.12em;
  text-decoration: none;
  margin-bottom: 0.25rem;
  transition: color 0.2s;
}
.article-hero-back:hover { color: rgba(255,255,255,0.85) !important; }
.article-hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.041667rem;
  font-size: 0.083333rem;
  font-weight: 600;
  letter-spacing: 0.2em;
  color: rgba(255,255,255,0.5);
  padding: 0.027778rem 0.138889rem;
  border: 1px solid rgba(255,255,255,0.15);
  border-radius: 2rem;
  margin-bottom: 0.194444rem;
  text-transform: uppercase;
}
.article-hero-title {
  font-size: 0.694444rem;
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.02em;
  color: transparent;
  background: linear-gradient(130deg, #ffffff 30%, rgba(200,180,255,0.8) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  margin-bottom: 0.138889rem;
}
.article-hero-subtitle {
  font-size: 0.152778rem;
  font-weight: 400;
  color: rgba(255,255,255,0.58);
  letter-spacing: 0.04em;
  line-height: 1.6;
  max-width: 5rem;
}

/* ---- 文章正文 ---- */
.article-body {
  max-width: 8.333333rem;
  margin: 0 auto;
  padding: 0.555556rem 0.555556rem 1.111111rem;
}

.article-section {
  margin-bottom: 0.694444rem;
}
.article-section-label {
  display: flex;
  align-items: center;
  gap: 0.083333rem;
  font-size: 0.083333rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  color: rgba(38,55,100,0.45);
  text-transform: uppercase;
  margin-bottom: 0.194444rem;
}
.article-section-label::before {
  content: '';
  width: 0.138889rem;
  height: 0.013889rem;
  background: linear-gradient(90deg, #7239ff, #a855f7);
  border-radius: 1px;
  flex-shrink: 0;
}
.article-section h2 {
  font-size: 0.361111rem;
  font-weight: 700;
  line-height: 1.3;
  color: #1a2040;
  margin-bottom: 0.194444rem;
  letter-spacing: -0.01em;
}
.article-section p {
  font-size: 0.125rem;
  line-height: 2;
  color: #5a6a85;
  letter-spacing: 0.06em;
  margin-bottom: 0.166667rem;
}
.article-section p:last-child { margin-bottom: 0; }
.article-section strong { color: #263764; font-weight: 600; }

/* 原则卡片 */
.principles-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.194444rem;
  margin-top: 0.277778rem;
}
.principle-card {
  background: #fff;
  border-radius: 0.166667rem;
  padding: 0.277778rem;
  border: 1px solid rgba(114,57,255,0.08);
  box-shadow: 0 0.027778rem 0.083333rem rgba(0,0,0,0.04);
  transition: transform 0.2s, box-shadow 0.2s;
}
.principle-card:hover {
  transform: translateY(-0.027778rem);
  box-shadow: 0 0.083333rem 0.25rem rgba(114,57,255,0.1);
}
.principle-num {
  font-size: 0.555556rem;
  font-weight: 900;
  color: rgba(114,57,255,0.1);
  line-height: 1;
  letter-spacing: -0.04em;
  font-family: "Lato","Georgia",sans-serif;
}
.principle-title {
  font-size: 0.152778rem;
  font-weight: 700;
  color: #1a2040;
  margin: 0.055556rem 0 0.083333rem;
  letter-spacing: 0.02em;
}
.principle-desc {
  font-size: 0.111111rem !important;
  line-height: 1.8 !important;
  color: #7a8aa5 !important;
  letter-spacing: 0.05em !important;
}

/* 案例展示 */
.cases-grid {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 0.194444rem;
  margin-top: 0.277778rem;
}
.case-card {
  border-radius: 0.138889rem;
  overflow: hidden;
  background: #fff;
  border: 1px solid rgba(0,0,0,0.06);
  box-shadow: 0 0.027778rem 0.055556rem rgba(0,0,0,0.04);
  transition: transform 0.22s, box-shadow 0.22s;
}
.case-card:hover {
  transform: translateY(-0.027778rem);
  box-shadow: 0 0.083333rem 0.222222rem rgba(0,0,0,0.1);
}
.case-cover {
  height: 0.972222rem;
  position: relative;
  overflow: hidden;
}
.case-info {
  padding: 0.138889rem;
}
.case-name {
  font-size: 0.125rem;
  font-weight: 700;
  color: #1a2040;
  letter-spacing: 0.03em;
  margin-bottom: 0.041667rem;
}
.case-tag {
  font-size: 0.083333rem;
  color: #7239ff;
  font-weight: 600;
  letter-spacing: 0.1em;
}

/* 工具列表 */
.tools-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0.138889rem;
  margin-top: 0.277778rem;
}
.tool-item {
  background: #fff;
  border-radius: 0.138889rem;
  padding: 0.222222rem 0.166667rem;
  text-align: center;
  border: 1px solid rgba(0,0,0,0.06);
  box-shadow: 0 0.027778rem 0.055556rem rgba(0,0,0,0.04);
  transition: all 0.2s;
}
.tool-item:hover {
  border-color: rgba(114,57,255,0.2);
  box-shadow: 0 0.027778rem 0.138889rem rgba(114,57,255,0.12);
}
.tool-icon {
  font-size: 0.277778rem;
  margin-bottom: 0.083333rem;
  display: block;
}
.tool-name {
  font-size: 0.111111rem;
  font-weight: 600;
  color: #263764;
  letter-spacing: 0.05em;
  margin-bottom: 0.041667rem;
}
.tool-desc {
  font-size: 0.083333rem;
  color: #a0adcb;
  letter-spacing: 0.06em;
  line-height: 1.5;
}

/* 引用块 */
.article-quote {
  margin: 0.333333rem 0;
  padding: 0.277778rem 0.333333rem;
  border-left: 0.027778rem solid #7239ff;
  background: rgba(114,57,255,0.04);
  border-radius: 0 0.138889rem 0.138889rem 0;
}
.article-quote p {
  font-size: 0.152778rem !important;
  font-style: italic;
  color: #263764 !important;
  font-weight: 500;
  line-height: 1.7 !important;
}
.article-quote cite {
  display: block;
  font-size: 0.097222rem;
  color: #a0adcb;
  margin-top: 0.083333rem;
  font-style: normal;
  letter-spacing: 0.1em;
}

/* 高亮文字块 */
.article-highlight {
  background: linear-gradient(135deg, #7239ff 0%, #a855f7 100%);
  border-radius: 0.194444rem;
  padding: 0.416667rem 0.555556rem;
  margin: 0.333333rem 0;
}
.article-highlight p {
  font-size: 0.166667rem !important;
  font-weight: 600;
  color: #fff !important;
  line-height: 1.7 !important;
  letter-spacing: 0.05em !important;
}

/* 导航底部 */
.article-nav-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.416667rem 0.555556rem;
  border-top: 1px solid rgba(0,0,0,0.06);
  margin-top: 0.555556rem;
}
.nav-footer-link {
  display: inline-flex;
  align-items: center;
  gap: 0.055556rem;
  font-size: 0.111111rem;
  font-weight: 600;
  color: #7239ff !important;
  letter-spacing: 0.08em;
  text-decoration: none;
  transition: gap 0.2s;
}
.nav-footer-link:hover { gap: 0.083333rem; }
.nav-footer-center {
  font-size: 0.083333rem;
  color: #a0adcb;
  letter-spacing: 0.15em;
  text-transform: uppercase;
}

/* 备案 */
.beian { padding: 0.277778rem; text-align: center; }
.beian a { font-size: 0.083333rem; color: #a0adcb; text-decoration: none; }