/* news.html — v3 抽离样式 */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}

:root{
  --bg:#080B11;
  --bg-2:#0D121A;
  --bg-3:#131A25;
  --surface:#101722;
  --surface-2:#151E2B;
  --line:rgba(255,255,255,.10);
  --line-soft:rgba(255,255,255,.06);
  --text:#E9EFF8;
  --text-2:#C3CEDA;
  --dim:#909DAF;
  --dim-2:#6D7A8B;
  --cyan:#22D3EE;
  --blue:#3B82F6;
  --violet:#8B5CF6;
  --grad:linear-gradient(115deg,#06B6D4 0%,#3B82F6 48%,#8B5CF6 100%);
  --shadow-s:0 1px 2px rgba(0,0,0,.5),0 4px 12px -4px rgba(0,0,0,.6);
  --shadow-m:0 2px 6px rgba(0,0,0,.45),0 16px 40px -16px rgba(0,0,0,.75);
  --shadow-l:0 4px 12px rgba(0,0,0,.5),0 30px 70px -28px rgba(0,0,0,.85);
  --radius:20px;
  --pad:clamp(22px,4.4vw,112px);
}

html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  background:var(--bg);
  color:var(--text);
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Segoe UI",sans-serif;
  line-height:1.65;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
::selection{background:rgba(37,99,235,.16);color:#0D1420}

/* 全宽容器：撑满视口，仅保留左右留白 */
.wrap{width:100%;margin:0;padding:0 var(--pad)}
.mono{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,"PingFang SC","Microsoft YaHei",monospace;font-variant-numeric:tabular-nums}

/* ===================== 背景光晕动效 =====================
   每个主要区块的背景层放 1–2 团超大半径的模糊光斑（radial-gradient + blur），
   用 24–36 秒不等的超慢周期做位移与缩放，形成"缓慢呼吸"的层次感。
   要点：
   · pointer-events:none —— 光斑纯装饰，不挡任何点击
   · z-index:0，区块内容统一抬到 z-index:2，避免模糊层糊住文字
   · 三个变体 g-a/g-b/g-c 用不同颜色、尺寸、周期，防止所有光斑同步移动而显得机械
   · transform 做动画（走合成层），不触发重排，滚动时也不掉帧
*/
.glow{
  position:absolute;display:block;border-radius:50%;
  pointer-events:none;z-index:0;
  filter:blur(90px);
  will-change:transform,opacity;
}
/* 蓝色光斑 · 26s 周期，向左上缓慢漂移 */
.glow.g-a{
  width:46vw;height:46vw;left:-12vw;top:-18vw;
  background:radial-gradient(circle,rgba(37,99,235,.16),rgba(37,99,235,0) 68%);
  animation:drift-a 26s ease-in-out infinite;
}
/* 紫色光斑 · 34s 周期，向右下漂移，与 g-a 错开节奏 */
.glow.g-b{
  width:38vw;height:38vw;right:-10vw;bottom:-16vw;
  background:radial-gradient(circle,rgba(124,58,237,.13),rgba(124,58,237,0) 68%);
  animation:drift-b 34s ease-in-out infinite;
}
/* 青色光斑 · 30s 周期，服务区右上角 */
.glow.g-c{
  width:34vw;height:34vw;right:-8vw;top:-12vw;
  background:radial-gradient(circle,rgba(8,145,178,.12),rgba(8,145,178,0) 70%);
  animation:drift-c 30s ease-in-out infinite;
}
/* 蓝色光斑 · 28s 周期，新闻区左下角 */
.glow.g-d{
  width:40vw;height:40vw;left:-14vw;bottom:-20vw;
  background:radial-gradient(circle,rgba(37,99,235,.12),rgba(37,99,235,0) 70%);
  animation:drift-c 28s ease-in-out infinite reverse;
}
/* 紫色光斑 · 32s 周期，CTA 区顶上 */
.glow.g-e{
  width:56vw;height:32vw;left:50%;top:-14vw;margin-left:-28vw;
  background:radial-gradient(circle,rgba(124,58,237,.14),rgba(124,58,237,0) 70%);
  animation:drift-a 32s ease-in-out infinite reverse;
}

/* 三个漂移轨迹：位移幅度都控制在 6% 视口内，慢到近乎察觉不到，只在长时间停留时能感到流动 */
@keyframes drift-a{
  0%,100%{transform:translate3d(0,0,0) scale(1);opacity:.85}
  50%{transform:translate3d(4vw,3vw,0) scale(1.12);opacity:1}
}
@keyframes drift-b{
  0%,100%{transform:translate3d(0,0,0) scale(1.08);opacity:.8}
  50%{transform:translate3d(-5vw,-3vw,0) scale(.94);opacity:1}
}
@keyframes drift-c{
  0%,100%{transform:translate3d(0,0,0) scale(.96);opacity:.75}
  50%{transform:translate3d(3vw,-4vw,0) scale(1.14);opacity:1}
}

/* ============ 顶部导航 ============ */
.nav{
  position:fixed;inset:0 0 auto 0;z-index:100;
  height:72px;display:flex;align-items:center;
  transition:background .4s ease,border-color .4s ease,box-shadow .4s ease;
  border-bottom:1px solid transparent;
}
.nav.scrolled{
  background:rgba(13,18,26,.82);
  backdrop-filter:blur(18px) saturate(160%);
  -webkit-backdrop-filter:blur(18px) saturate(160%);
  border-bottom-color:var(--line-soft);
  box-shadow:0 1px 20px -8px rgba(0,0,0,.10);
}
.nav-inner{display:flex;align-items:center;gap:24px;width:100%;height:100%}

.logo{display:flex;align-items:center;gap:10px;font-size:17px;font-weight:700;letter-spacing:.02em;flex-shrink:0;color:var(--text)}
.logo-mark{
  width:30px;height:30px;border-radius:9px;
  background:var(--grad);
  display:grid;place-items:center;
  box-shadow:0 4px 14px -3px rgba(37,99,235,.45);
}
.logo-mark svg{width:16px;height:16px;stroke:#fff;stroke-width:2.4;fill:none}
.logo em{font-style:normal;font-size:11px;font-weight:500;color:var(--dim-2);letter-spacing:.14em;margin-left:2px}

/* --- 一级菜单 --- */
.nav-menu{display:flex;align-items:stretch;height:100%}
.nav-item{position:relative;display:flex;align-items:center;height:100%}
.nav-item.active::after{
  content:"";position:absolute;left:11px;right:11px;bottom:0;height:2px;
  background:var(--grad);border-radius:2px 2px 0 0;
}
.nav-link{
  display:inline-flex;align-items:center;gap:5px;
  padding:8px 11px;border-radius:8px;
  font-size:14px;line-height:1.5;color:var(--dim);
  white-space:nowrap;cursor:pointer;
  transition:color .2s ease,background .2s ease;
}
.nav-link:hover,.nav-item:hover>.nav-link{color:var(--text);background:rgba(0,0,0,.045)}
.nav-item.active>.nav-link{color:var(--text);font-weight:600}
.nav-link .chev{
  width:9px;height:9px;stroke:currentColor;stroke-width:2.6;fill:none;
  opacity:.42;transition:transform .26s ease,opacity .26s ease;
}
.nav-item:hover .chev{transform:rotate(180deg);opacity:.9}

/* --- 二级导航：全宽下拉面板（参考阿里云/腾讯云的产品菜单） ---
   面板用 fixed 定位贴住导航底边，宽度铺满视口，内部用 .wrap 与页面内容对齐。
   .nav-item 设为 stretch 满高，保证鼠标从一级项移到面板时 hover 不会中断。 */
.mega{
  position:fixed;top:72px;left:0;right:0;
  background:var(--surface);
  border-top:1px solid var(--line-soft);
  box-shadow:0 28px 54px -28px rgba(0,0,0,.22);
  opacity:0;visibility:hidden;transform:translateY(-8px);pointer-events:none;
  transition:opacity .26s ease,transform .26s ease,visibility .26s ease;
  z-index:98;
}
.nav-item:hover>.mega{opacity:1;visibility:visible;transform:translateY(0);pointer-events:auto}

.mega-grid{display:grid;gap:clamp(14px,2vw,38px);padding:32px 0 26px}
.mega-grid.c4{grid-template-columns:repeat(4,1fr)}
.mega-grid.c3{grid-template-columns:repeat(3,1fr)}
.mega-grid.c2{grid-template-columns:repeat(2,1fr)}

.mega-title{
  font-size:11.5px;font-weight:600;letter-spacing:.10em;color:var(--dim-2);
  padding-left:10px;margin-bottom:10px;
}

/* 图标 + 标题 + 描述 的产品条目 */
.mega-item{
  display:flex;align-items:flex-start;gap:11px;
  padding:9px 10px;border-radius:10px;
  transition:background .2s ease;
}
.mega-item:hover{background:var(--bg-2)}
.mi-ico{
  flex:0 0 30px;width:30px;height:30px;border-radius:8px;
  background:linear-gradient(140deg,rgba(8,145,178,.10),rgba(124,58,237,.09));
  border:1px solid rgba(37,99,235,.10);
  display:grid;place-items:center;color:var(--blue);
  transition:border-color .2s ease,color .2s ease;
}
.mi-ico svg{width:15px;height:15px;stroke:currentColor;stroke-width:1.8;fill:none}
.mega-item:hover .mi-ico{border-color:rgba(37,99,235,.30);color:var(--cyan)}
.mi-txt{display:flex;flex-direction:column;gap:1px;min-width:0}
.mi-txt b{font-size:13.5px;font-weight:600;color:var(--text-2);line-height:1.5;transition:color .2s ease}
.mi-txt em{font-style:normal;font-size:11.5px;color:var(--dim-2);line-height:1.5}
.mega-item:hover .mi-txt b{color:var(--blue)}

/* 纯文字条目（资源中心） */
.mega-list{display:flex;flex-direction:column;gap:1px}
.mega-list a{
  display:flex;align-items:center;justify-content:space-between;gap:14px;
  padding:8px 10px;border-radius:8px;font-size:13.5px;color:var(--dim);
  transition:background .2s ease,color .2s ease;
}
.mega-list a:hover{background:var(--bg-2);color:var(--text)}
.mega-list .tag{
  font-size:10px;font-weight:700;letter-spacing:.06em;color:#fff;
  background:var(--grad);border-radius:4px;padding:0 5px;line-height:1.7;
}

/* 解决方案卡片 */
.sol-card{
  border:1px solid var(--line-soft);border-radius:14px;
  padding:18px 18px 14px;
  background:linear-gradient(180deg,var(--surface) 0%,var(--surface-2) 100%);
  transition:border-color .24s ease,box-shadow .24s ease,transform .24s ease;
}
.sol-card:hover{border-color:rgba(37,99,235,.26);box-shadow:var(--shadow-m);transform:translateY(-2px)}
.sol-card h5{font-size:12px;font-weight:600;letter-spacing:.06em;color:var(--dim-2);margin-bottom:7px}
.sol-card a{display:flex;align-items:center;gap:7px;padding:5px 0;font-size:13.5px;color:var(--text-2);transition:color .2s}
.sol-card a:hover{color:var(--blue)}
.sol-card a::before{content:"";width:3px;height:3px;border-radius:50%;background:var(--dim-2);flex:0 0 3px}

/* 解决方案第 4 栏：顾问引导卡，兼作面板右侧的视觉收口 */
.sol-feature{
  border-radius:14px;padding:18px;
  background:linear-gradient(150deg,rgba(8,145,178,.075),rgba(124,58,237,.095));
  border:1px solid rgba(37,99,235,.14);
  display:flex;flex-direction:column;
}
.sol-feature span{font-size:11px;font-weight:700;letter-spacing:.09em;color:var(--cyan)}
.sol-feature h6{font-size:14.5px;font-weight:700;color:var(--text);margin:7px 0 7px;line-height:1.5}
.sol-feature p{font-size:12px;color:var(--dim);line-height:1.7}
.sol-feature a{
  margin-top:auto;padding-top:14px;
  display:inline-flex;align-items:center;gap:6px;
  font-size:12.5px;font-weight:600;color:var(--blue);
}
.sol-feature a svg{width:11px;height:11px;stroke:currentColor;stroke-width:2.4;fill:none;transition:transform .22s ease}
.sol-feature a:hover svg{transform:translateX(3px)}

/* 窄面板：条目少的栏目用常规下拉尺寸，避免全宽铺开显得空旷 */
.mega.narrow{
  position:absolute;top:100%;left:-20px;right:auto;
  width:600px;max-width:calc(100vw - 48px);
  border-radius:0 0 16px 16px;
}
.mega.narrow .mega-pad{padding:22px 24px 0}
.mega.narrow .mega-grid{padding:0 0 14px;gap:26px}
.mega.narrow .mega-foot{padding:12px 0 16px}

/* 面板底部条 */
.mega-foot{
  display:flex;align-items:center;justify-content:space-between;gap:24px;flex-wrap:wrap;
  border-top:1px solid var(--line-soft);
  padding:13px 0 16px;
  font-size:12.5px;color:var(--dim-2);
}
.mega-foot .sep{display:inline-block;width:3px;height:3px;border-radius:50%;background:var(--dim-2);margin:0 9px;vertical-align:middle;opacity:.6}
.mega-more{display:inline-flex;align-items:center;gap:6px;font-size:13px;font-weight:600;color:var(--blue);transition:color .2s}
.mega-more:hover{color:var(--cyan)}
.mega-more svg{width:12px;height:12px;stroke:currentColor;stroke-width:2.2;fill:none;transition:transform .22s ease}
.mega-more:hover svg{transform:translateX(3px)}

/* --- 右侧操作区 --- */
.nav-right{margin-left:auto;display:flex;align-items:center;gap:6px;flex-shrink:0}
.nav-ghost{
  display:inline-grid;place-items:center;
  width:34px;height:34px;border-radius:9px;
  color:var(--dim);transition:color .2s,background .2s;
}
.nav-ghost:hover{color:var(--text);background:rgba(0,0,0,.045)}
.nav-ghost svg{width:16px;height:16px;stroke:currentColor;stroke-width:2;fill:none}
.nav-login{padding:8px 11px;border-radius:8px;font-size:13.5px;color:var(--dim);transition:color .2s,background .2s}
.nav-login:hover{color:var(--text);background:rgba(0,0,0,.045)}

.nav-cta{
  display:inline-flex;align-items:center;gap:7px;
  padding:9px 17px;border-radius:10px;font-size:14px;font-weight:600;
  background:var(--grad);
  color:#fff;white-space:nowrap;
  transition:all .25s;
  box-shadow:0 6px 18px -8px rgba(0,0,0,.5);
}
.nav-cta:hover{background:var(--grad);filter:brightness(1.12);transform:translateY(-1px);box-shadow:0 10px 24px -8px rgba(0,0,0,.55)}
.nav-cta svg{width:13px;height:13px;stroke:currentColor;stroke-width:2.4;fill:none}

.nav-toggle{display:none;background:none;border:0;color:var(--text);cursor:pointer;padding:8px}
.nav-toggle svg{width:22px;height:22px;stroke:currentColor;stroke-width:2;fill:none}

/* --- 移动端抽屉菜单 --- */
.drawer{
  position:fixed;inset:72px 0 auto 0;z-index:97;
  background:var(--surface);border-bottom:1px solid var(--line-soft);
  box-shadow:var(--shadow-l);
  max-height:calc(100vh - 72px);overflow-y:auto;
  padding:8px var(--pad) 26px;
  display:none;
}
.drawer.open{display:block;animation:drawerIn .26s ease both}
@keyframes drawerIn{from{opacity:0;transform:translateY(-10px)}to{opacity:1;transform:none}}
.drawer>a,.drawer details{border-bottom:1px solid var(--line-soft)}
.drawer>a{display:block;padding:13px 2px;font-size:15px;color:var(--text-2)}
.drawer summary{
  display:flex;align-items:center;justify-content:space-between;
  padding:13px 2px;font-size:15px;color:var(--text-2);cursor:pointer;list-style:none;
}
.drawer summary::-webkit-details-marker{display:none}
.drawer summary svg{width:12px;height:12px;stroke:var(--dim-2);stroke-width:2.2;fill:none;transition:transform .24s ease}
.drawer details[open] summary svg{transform:rotate(180deg)}
.drawer .sub{display:grid;grid-template-columns:1fr 1fr;gap:2px 10px;padding:2px 0 14px 8px}
.drawer .sub a{display:block;font-size:13.5px;color:var(--dim);padding:7px 4px}

/* ============ Hero ============ */
.hero{
  position:relative;
  min-height:100vh;
  padding:150px 0 90px;
  display:flex;align-items:center;
  overflow:hidden;
  background:
    radial-gradient(880px 520px at 80% 14%,rgba(37,99,235,.075),transparent 62%),
    radial-gradient(700px 460px at 6% 78%,rgba(124,58,237,.055),transparent 66%),
    linear-gradient(180deg,var(--surface),var(--bg) 60%);
}
/* 网格背景 */
.hero::before{
  content:"";position:absolute;inset:-2px;pointer-events:none;
  background-image:
    linear-gradient(rgba(0,0,0,.045) 1px,transparent 1px),
    linear-gradient(90deg,rgba(0,0,0,.045) 1px,transparent 1px);
  background-size:64px 64px;
  mask-image:radial-gradient(ellipse 76% 60% at 50% 36%,#000 16%,transparent 76%);
  -webkit-mask-image:radial-gradient(ellipse 76% 60% at 50% 36%,#000 16%,transparent 76%);
}
.hero::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:180px;pointer-events:none;
  background:linear-gradient(180deg,transparent,var(--bg));
}

.hero-grid{
  position:relative;z-index:2;
  display:grid;grid-template-columns:1.08fr .92fr;gap:clamp(32px,5vw,72px);
  align-items:center;width:100%;
}

.badge{
  display:inline-flex;align-items:center;gap:9px;
  padding:6px 14px 6px 10px;border-radius:100px;
  background:var(--surface);
  border:1px solid rgba(37,99,235,.18);
  box-shadow:0 2px 10px -4px rgba(37,99,235,.16);
  font-size:12.5px;color:#1D4ED8;letter-spacing:.02em;
  margin-bottom:26px;
}
.badge .dot{
  width:6px;height:6px;border-radius:50%;background:#2563EB;
  box-shadow:0 0 0 3px rgba(37,99,235,.14);
  animation:pulse 2.4s ease-in-out infinite;
}
@keyframes pulse{0%,100%{opacity:1;transform:scale(1)}50%{opacity:.4;transform:scale(.8)}}

.hero h1{
  font-size:clamp(38px,4.9vw,84px);
  line-height:1.12;letter-spacing:-.035em;font-weight:800;
  margin-bottom:24px;color:var(--text);
}
.hero h1 .grad{
  background:var(--grad);
  -webkit-background-clip:text;background-clip:text;
  -webkit-text-fill-color:transparent;color:transparent;
}
.hero-sub{text-wrap:pretty;
  font-size:clamp(15.5px,1.3vw,18px);
  color:var(--dim);line-height:1.78;max-width:520px;margin-bottom:38px;
}
.hero-sub strong{color:var(--text-2);font-weight:600}

.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:52px}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  height:50px;padding:0 30px;border-radius:12px;
  font-size:15px;font-weight:600;cursor:pointer;border:1px solid transparent;
  transition:all .26s;
}
.btn svg{width:15px;height:15px;stroke:currentColor;stroke-width:2.2;fill:none;transition:transform .26s}
.btn-primary{
  background:var(--grad);color:#fff;
  box-shadow:0 10px 28px -10px rgba(37,99,235,.6);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 16px 36px -10px rgba(37,99,235,.68)}
.btn-primary:hover svg{transform:translateX(3px)}
.btn-ghost{
  background:var(--surface);color:var(--text-2);
  border-color:rgba(0,0,0,.12);
  box-shadow:0 2px 6px -2px rgba(0,0,0,.06);
}
.btn-ghost:hover{background:var(--bg-2);border-color:rgba(0,0,0,.2);color:var(--text)}

.hero-metrics{display:flex;gap:clamp(24px,3.6vw,52px);flex-wrap:wrap}
.hero-metrics .m-num{
  font-size:clamp(24px,2.5vw,32px);font-weight:800;letter-spacing:-.03em;
  line-height:1.1;margin-bottom:5px;color:var(--text);
}
.hero-metrics .m-num span{font-size:.58em;color:var(--cyan);margin-left:2px;font-weight:600}
.hero-metrics .m-label{font-size:12.5px;color:var(--dim-2);letter-spacing:.04em}

/* Hero 右侧：代码窗口 */
.console{
  position:relative;
  border-radius:var(--radius);
  background:var(--surface);
  border:1px solid var(--line);
  box-shadow:var(--shadow-l);
  overflow:hidden;
}
.console::after{
  content:"";position:absolute;inset:0;pointer-events:none;border-radius:inherit;
  background:radial-gradient(460px 180px at 100% 0%,rgba(37,99,235,.05),transparent 68%);
}
.console-bar{
  display:flex;align-items:center;gap:8px;
  padding:13px 16px;border-bottom:1px solid var(--line-soft);
  background:var(--bg-2);
}
.console-bar i{width:9px;height:9px;border-radius:50%;display:block}
.console-bar i:nth-child(1){background:#FF5F57}
.console-bar i:nth-child(2){background:#FEBC2E}
.console-bar i:nth-child(3){background:#28C840}
.console-bar span{
  margin-left:auto;font-size:11.5px;color:var(--dim-2);letter-spacing:.06em;
}
.console-body{padding:20px 20px 22px;position:relative;z-index:1}
.code{
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,"PingFang SC","Microsoft YaHei",monospace;
  font-size:12.5px;line-height:2.05;
}
.code .ln{display:flex;gap:14px}
.code .n{color:#C8D2E0;user-select:none;width:16px;text-align:right;flex-shrink:0}
.code .k{color:#7C3AED}
.code .s{color:#0E8A6E}
.code .f{color:#2563EB}
.code .c{color:#A3AFC0}
.code .p{color:#3B4859}

.status{
  margin-top:18px;padding-top:16px;border-top:1px solid var(--line-soft);
  display:flex;align-items:center;justify-content:space-between;gap:12px;
}
.status-l{display:flex;align-items:center;gap:9px;font-size:12.5px;color:var(--dim)}
.status-l .live{
  width:6px;height:6px;border-radius:50%;background:#10B981;
  box-shadow:0 0 0 3px rgba(16,185,129,.14);
}
.status-r{font-size:11.5px;color:var(--dim-2)}

.float-card{
  position:absolute;right:-16px;bottom:-18px;
  padding:14px 18px;border-radius:14px;
  background:var(--surface);
  border:1px solid var(--line);
  box-shadow:var(--shadow-m);
  display:flex;align-items:center;gap:12px;
}
.float-card .fc-ico{
  width:34px;height:34px;border-radius:10px;display:grid;place-items:center;
  background:rgba(37,99,235,.07);border:1px solid rgba(37,99,235,.14);
}
.float-card .fc-ico svg{width:16px;height:16px;stroke:var(--blue);stroke-width:2;fill:none}
.float-card .fc-num{font-size:17px;font-weight:800;line-height:1.2;letter-spacing:-.02em;color:var(--text)}
.float-card .fc-txt{font-size:11px;color:var(--dim-2);letter-spacing:.03em}

/* ============ 通用区块 ============ */
.section{position:relative;padding:clamp(70px,8vw,120px) 0;overflow:hidden}
/* 区块内容整体抬到光斑之上，保证文字始终清晰 */
.section>.wrap,.cta>.wrap,.hero>.wrap,.stats-band>.wrap{position:relative;z-index:2}
.section-alt{background:var(--bg-2);border-top:1px solid var(--line-soft);border-bottom:1px solid var(--line-soft)}

.sec-head{margin-bottom:clamp(38px,4.6vw,60px);max-width:660px}
.sec-tag{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;letter-spacing:.16em;text-transform:uppercase;
  color:var(--cyan);margin-bottom:16px;font-weight:600;
}
.sec-tag::before{content:"";width:22px;height:1px;background:linear-gradient(90deg,var(--cyan),transparent)}
.sec-head h2{
  font-size:clamp(28px,3.4vw,42px);line-height:1.2;letter-spacing:-.03em;font-weight:800;
  margin-bottom:16px;color:var(--text);
}
.sec-head p{color:var(--dim);font-size:15.5px;line-height:1.78;text-wrap:pretty}
.sec-head.center{margin-left:auto;margin-right:auto;text-align:center}
.sec-head.center .sec-tag{justify-content:center}
.sec-head.center .sec-tag::before{display:none}

/* ============ 客户条 ============ */
.trust{position:relative;padding:44px 0;border-bottom:1px solid var(--line-soft);background:var(--surface);overflow:hidden}
.trust-inner{display:flex;align-items:center;gap:clamp(24px,4vw,56px);flex-wrap:wrap;justify-content:space-between}
.trust-label{font-size:12.5px;color:var(--dim-2);letter-spacing:.06em;flex-shrink:0}
.trust-logos{display:flex;align-items:center;gap:clamp(22px,3.4vw,48px);flex-wrap:wrap;flex:1;justify-content:space-between}
.trust-logos span{
  font-size:15px;font-weight:700;letter-spacing:.08em;color:#B9C4D4;
  transition:color .3s;
}
.trust-logos span:hover{color:#4A5A70}

/* ============ 服务卡片 ============ */
.svc-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.svc{
  position:relative;padding:30px 26px 28px;border-radius:var(--radius);
  background:var(--surface);
  border:1px solid var(--line-soft);
  box-shadow:var(--shadow-s);
  transition:all .35s cubic-bezier(.2,.8,.3,1);
  overflow:hidden;
}
.svc::before{
  content:"";position:absolute;inset:0;opacity:0;transition:opacity .35s;
  background:radial-gradient(380px 150px at 50% 0%,rgba(37,99,235,.06),transparent 70%);
}
.svc:hover{
  transform:translateY(-5px);
  border-color:rgba(37,99,235,.22);
  box-shadow:var(--shadow-m);
}
.svc:hover::before{opacity:1}
.svc-ico{
  width:46px;height:46px;border-radius:13px;display:grid;place-items:center;
  background:rgba(37,99,235,.07);border:1px solid rgba(37,99,235,.14);
  margin-bottom:20px;position:relative;z-index:1;
}
.svc-ico svg{width:21px;height:21px;stroke:var(--blue);stroke-width:1.8;fill:none}
.svc h3{font-size:17px;font-weight:700;margin-bottom:10px;letter-spacing:-.01em;position:relative;z-index:1;color:var(--text)}
.svc p{font-size:13.5px;color:var(--dim);line-height:1.75;position:relative;z-index:1}
.svc-more{
  display:inline-flex;align-items:center;gap:6px;margin-top:18px;
  font-size:12.5px;color:var(--blue);position:relative;z-index:1;
  opacity:0;transform:translateX(-4px);transition:all .3s;
}
.svc:hover .svc-more{opacity:1;transform:translateX(0)}
.svc-more svg{width:12px;height:12px;stroke:currentColor;stroke-width:2.4;fill:none}

/* 服务卡扩展：角标 + 规格行（云平台产品的常见信息密度） */
.svc-tag{
  position:absolute;top:17px;right:17px;z-index:2;
  font-size:10px;font-weight:700;letter-spacing:.06em;
  color:#fff;background:var(--grad);padding:2px 7px;border-radius:5px;
}
.svc-tag.soft{background:rgba(37,99,235,.10);color:var(--blue)}
.svc-specs{
  display:flex;gap:22px;margin-top:18px;padding-top:15px;
  border-top:1px solid var(--line-soft);position:relative;z-index:1;
}
.svc-specs div{display:flex;flex-direction:column;gap:1px}
.svc-specs b{font-size:13.5px;font-weight:700;color:var(--text-2);letter-spacing:-.01em}
.svc-specs span{font-size:10.5px;color:var(--dim-2);letter-spacing:.02em}

/* ============ 技术底座 ============ */
.tech-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.tech-card{
  position:relative;overflow:hidden;
  border:1px solid var(--line-soft);border-radius:16px;
  background:linear-gradient(180deg,var(--surface) 0%,var(--surface-2) 100%);
  padding:24px 22px 22px;
  transition:all .32s cubic-bezier(.2,.8,.3,1);
}
.tech-card:hover{border-color:rgba(37,99,235,.22);box-shadow:var(--shadow-m);transform:translateY(-3px)}
.t-ico{
  width:34px;height:34px;border-radius:10px;display:grid;place-items:center;
  background:rgba(37,99,235,.07);border:1px solid rgba(37,99,235,.12);
  margin-bottom:14px;color:var(--blue);
}
.t-ico svg{width:17px;height:17px;stroke:currentColor;stroke-width:1.8;fill:none}
.tech-card b{display:block;font-size:15px;font-weight:700;color:var(--text);margin-bottom:6px;letter-spacing:-.01em}
.tech-card b em{font-style:normal;color:var(--cyan)}
.tech-card p{font-size:12.5px;color:var(--dim);line-height:1.75}

/* ============ 行业方案 ============ */
.ind-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.ind{
  display:flex;flex-direction:column;
  border:1px solid var(--line-soft);border-radius:16px;background:var(--surface);
  padding:24px 22px 20px;box-shadow:var(--shadow-s);
  transition:all .32s cubic-bezier(.2,.8,.3,1);
}
.ind:hover{transform:translateY(-4px);border-color:rgba(37,99,235,.22);box-shadow:var(--shadow-m)}
.ind-top{display:flex;align-items:center;gap:11px;margin-bottom:11px}
.ind-ico{
  width:36px;height:36px;border-radius:10px;flex-shrink:0;display:grid;place-items:center;
  background:linear-gradient(140deg,rgba(8,145,178,.10),rgba(124,58,237,.10));
  border:1px solid rgba(37,99,235,.12);
}
.ind-ico svg{width:18px;height:18px;stroke:var(--blue);stroke-width:1.8;fill:none}
.ind h4{font-size:15px;font-weight:700;color:var(--text);letter-spacing:-.01em}
.ind p{font-size:12.5px;color:var(--dim);line-height:1.75;margin-bottom:14px}
.ind-tags{display:flex;flex-wrap:wrap;gap:6px;margin-top:auto}
.ind-tags span{font-size:11px;color:var(--dim);background:var(--bg-2);border:1px solid var(--line-soft);border-radius:5px;padding:2px 7px}

/* ============ 价格套餐 ============ */
.plan-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;align-items:stretch}
.plan{
  position:relative;display:flex;flex-direction:column;
  border:1px solid var(--line-soft);border-radius:20px;background:var(--surface);
  padding:32px 28px 30px;box-shadow:var(--shadow-s);
  transition:all .32s cubic-bezier(.2,.8,.3,1);
}
.plan:hover{box-shadow:var(--shadow-m);transform:translateY(-3px)}
.plan.featured{border-color:rgba(37,99,235,.42);box-shadow:0 0 0 1px rgba(37,99,235,.12),var(--shadow-m)}
.plan-flag{
  position:absolute;top:16px;right:20px;
  font-size:10.5px;font-weight:700;letter-spacing:.06em;color:#fff;
  background:var(--grad);padding:3px 9px;border-radius:20px;
}
.plan h3{font-size:16px;font-weight:700;color:var(--text);margin-bottom:5px}
.plan .p-sub{font-size:12.5px;color:var(--dim-2);margin-bottom:20px;min-height:20px}
.plan .p-price{display:flex;align-items:baseline;gap:6px;padding-bottom:20px;border-bottom:1px solid var(--line-soft)}
.plan .p-price b{font-size:34px;font-weight:800;letter-spacing:-.03em;color:var(--text);line-height:1}
.plan .p-price b i{font-style:normal;font-size:16px;font-weight:600;margin-right:1px}
.plan .p-price span{font-size:12px;color:var(--dim-2)}
.plan ul{list-style:none;display:flex;flex-direction:column;gap:11px;padding:20px 0 24px}
.plan li{display:flex;gap:9px;font-size:13px;color:var(--text-2);line-height:1.6}
.plan li svg{width:14px;height:14px;flex-shrink:0;margin-top:3px;stroke:var(--cyan);stroke-width:2.4;fill:none}
.plan .btn{margin-top:auto;justify-content:center;width:100%}

/* ============ 交付流程 ============ */
.flow{position:relative;display:grid;grid-template-columns:repeat(6,1fr);gap:0}
.flow::before{
  content:"";position:absolute;left:8%;right:8%;top:22px;height:1px;z-index:0;
  background:linear-gradient(90deg,rgba(37,99,235,.06),rgba(37,99,235,.32),rgba(124,58,237,.30),rgba(37,99,235,.06));
}
.flow-step{position:relative;z-index:1;padding:0 12px;text-align:center}
.fs-num{
  width:44px;height:44px;margin:0 auto 18px;border-radius:50%;
  display:grid;place-items:center;
  background:var(--surface);border:1px solid var(--line);
  font-size:13px;font-weight:700;color:var(--blue);
  font-variant-numeric:tabular-nums;
  box-shadow:var(--shadow-s);
  transition:all .3s cubic-bezier(.2,.8,.3,1);
}
.flow-step:hover .fs-num{border-color:transparent;background:var(--grad);color:#fff;transform:translateY(-3px);box-shadow:0 10px 22px -8px rgba(37,99,235,.5)}
.flow-step h4{font-size:14px;font-weight:700;color:var(--text);margin-bottom:6px;letter-spacing:-.01em}
.flow-step p{font-size:12px;color:var(--dim);line-height:1.7;margin-bottom:8px}
.fs-time{font-size:11px;font-weight:600;color:var(--cyan);letter-spacing:.03em}

/* ============ 数据带 ============ */
.stats-band{position:relative;overflow:hidden;background:var(--bg-2)}
.stats-band::before{
  content:"";position:absolute;inset:0;
  background:radial-gradient(700px 300px at 50% 50%,rgba(37,99,235,.05),transparent 70%);
}
.stats-grid{
  position:relative;display:grid;grid-template-columns:repeat(4,1fr);
  border:1px solid var(--line-soft);border-radius:var(--radius);
  background:var(--surface);
  box-shadow:var(--shadow-s);
  overflow:hidden;
}
.stat{padding:38px 28px;text-align:center;border-right:1px solid var(--line-soft)}
.stat:last-child{border-right:0}
.stat b{
  display:block;font-size:clamp(30px,3.4vw,44px);font-weight:800;letter-spacing:-.035em;
  line-height:1.1;background:var(--grad);
  -webkit-background-clip:text;background-clip:text;
  -webkit-text-fill-color:transparent;color:transparent;
  margin-bottom:8px;
}
.stat span{font-size:13px;color:var(--dim);letter-spacing:.02em}

/* ============ 新闻（动态区块） ============ */
.news-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:44px;flex-wrap:wrap}
.news-head .sec-head{margin-bottom:0}
.link-more{
  display:inline-flex;align-items:center;gap:7px;font-size:14px;color:var(--blue);
  padding-bottom:4px;border-bottom:1px solid rgba(37,99,235,.28);transition:all .25s;
}
.link-more:hover{border-bottom-color:var(--blue);gap:11px}
.link-more svg{width:13px;height:13px;stroke:currentColor;stroke-width:2.2;fill:none}

/* 列表空状态 */
.empty-note{padding:48px 0;text-align:center;font-size:14px;color:var(--dim)}

/* 动态列表容器 */
.news-grid{
  display:grid;grid-template-columns:1.35fr 1fr 1fr;gap:20px;
}
.news-card{
  position:relative;display:flex;flex-direction:column;
  border-radius:var(--radius);overflow:hidden;
  background:var(--surface);
  border:1px solid var(--line-soft);
  box-shadow:var(--shadow-s);
  transition:all .35s cubic-bezier(.2,.8,.3,1);
}
.news-card:hover{transform:translateY(-5px);border-color:rgba(37,99,235,.2);box-shadow:var(--shadow-m)}
.news-thumb{
  position:relative;overflow:hidden;background:var(--bg-2);
  aspect-ratio:16/10;
}
.news-thumb img{
  width:100%;height:100%;object-fit:cover;
  transition:transform .6s cubic-bezier(.2,.8,.3,1);
  filter:saturate(.96) contrast(1.02);
}
.news-card:hover .news-thumb img{transform:scale(1.06);filter:saturate(1.04) contrast(1.03)}
.news-thumb::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(0,0,0,0) 58%,rgba(0,0,0,.18) 100%);
}
.news-tag{
  position:absolute;left:14px;top:14px;z-index:2;
  padding:5px 11px;border-radius:7px;font-size:11.5px;font-weight:600;letter-spacing:.02em;
  background:rgba(13,18,26,.94);border:1px solid rgba(37,99,235,.16);
  color:#1D4ED8;backdrop-filter:blur(8px);
}
.news-body{padding:22px 22px 24px;display:flex;flex-direction:column;flex:1}
.news-meta{display:flex;align-items:center;gap:12px;font-size:11.5px;color:var(--dim-2);margin-bottom:11px}
.news-meta .dot-s{width:3px;height:3px;border-radius:50%;background:var(--dim-2)}
.news-body h3{
  font-size:16.5px;font-weight:700;line-height:1.5;letter-spacing:-.01em;
  margin-bottom:10px;transition:color .25s;color:var(--text);
}
.news-card:hover .news-body h3{color:var(--blue)}
.news-body p{font-size:13.5px;color:var(--dim);line-height:1.7;flex:1}

.news-card.featured .news-thumb{aspect-ratio:16/9}
.news-card.featured .news-body h3{font-size:20px}
.news-card.featured .news-body p{font-size:14px}

/* ============ 优势 ============ */
.adv-grid{display:grid;grid-template-columns:1fr 1fr;gap:clamp(32px,5vw,72px);align-items:center}
.adv-list{display:flex;flex-direction:column;gap:6px;margin-top:36px}
.adv-item{
  display:flex;gap:18px;padding:20px 0;border-bottom:1px solid var(--line-soft);
  transition:all .3s;
}
.adv-item:last-child{border-bottom:0}
.adv-item:hover{padding-left:6px}
.adv-num{
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,"PingFang SC","Microsoft YaHei",monospace;font-size:12px;color:var(--dim-2);
  padding-top:4px;letter-spacing:.05em;flex-shrink:0;
}
.adv-txt h4{font-size:15.5px;font-weight:700;margin-bottom:6px;color:var(--text)}
.adv-txt p{font-size:13.5px;color:var(--dim);line-height:1.72}

.adv-visual{
  position:relative;border-radius:var(--radius);overflow:hidden;
  border:1px solid var(--line);min-height:420px;
  background:var(--bg-2);
  box-shadow:var(--shadow-m);
}
.adv-visual img{width:100%;height:100%;object-fit:cover;position:absolute;inset:0}
.adv-visual::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(0,0,0,0) 42%,rgba(0,0,0,.5) 100%);
}
.adv-badge{
  position:absolute;left:24px;bottom:24px;right:24px;z-index:2;
  padding:20px 22px;border-radius:14px;
  background:rgba(13,18,26,.97);
  border:1px solid rgba(255,255,255,.12);
  box-shadow:0 12px 40px -12px rgba(0,0,0,.35);
  backdrop-filter:blur(16px);
}
.adv-badge .ab-top{display:flex;align-items:center;gap:9px;margin-bottom:9px}
.adv-badge .ab-top svg{width:15px;height:15px;stroke:#10B981;stroke-width:2.4;fill:none}
.adv-badge .ab-top b{font-size:13.5px;font-weight:700;letter-spacing:.01em;color:var(--text)}
.adv-badge p{font-size:12.5px;color:var(--dim);line-height:1.65}

/* ============ CTA ============ */
.cta{
  position:relative;overflow:hidden;
  padding:clamp(70px,9vw,110px) 0;
  background:
    radial-gradient(760px 400px at 50% 0%,rgba(37,99,235,.09),transparent 68%),
    radial-gradient(560px 280px at 86% 100%,rgba(124,58,237,.07),transparent 70%),
    linear-gradient(180deg,var(--surface),var(--bg-2));
  border-top:1px solid var(--line-soft);
}
.cta::before{
  content:"";position:absolute;inset:0;
  background-image:
    linear-gradient(rgba(0,0,0,.04) 1px,transparent 1px),
    linear-gradient(90deg,rgba(0,0,0,.04) 1px,transparent 1px);
  background-size:56px 56px;
  mask-image:radial-gradient(ellipse 60% 70% at 50% 50%,#000,transparent 72%);
  -webkit-mask-image:radial-gradient(ellipse 60% 70% at 50% 50%,#000,transparent 72%);
}
.cta-inner{position:relative;text-align:center;max-width:720px;margin:0 auto}
.cta h2{
  font-size:clamp(30px,4vw,50px);line-height:1.16;letter-spacing:-.035em;font-weight:800;
  margin-bottom:20px;color:var(--text);
}
.cta p{color:var(--dim);font-size:16px;line-height:1.75;margin-bottom:38px}
.cta-actions{display:flex;gap:14px;justify-content:center;flex-wrap:wrap}
.cta-note{margin-top:22px;font-size:12.5px;color:var(--dim-2)}

/* ============ 页脚 ============ */
.footer{background:var(--bg-2);border-top:1px solid var(--line-soft);padding:clamp(56px,6vw,80px) 0 32px}
.foot-top{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr 1fr;gap:clamp(24px,3.4vw,52px);margin-bottom:52px}
.foot-brand p{font-size:13.5px;color:var(--dim);line-height:1.8;margin:18px 0 22px;max-width:300px}
.foot-contact{display:flex;flex-direction:column;gap:9px}
.foot-contact div{display:flex;align-items:center;gap:9px;font-size:13px;color:var(--dim)}
.foot-contact svg{width:14px;height:14px;stroke:var(--dim-2);stroke-width:1.8;fill:none;flex-shrink:0}
.foot-col h5{font-size:13px;font-weight:700;letter-spacing:.06em;margin-bottom:18px;color:var(--text-2)}
.foot-col a{display:block;font-size:13.5px;color:var(--dim);padding:6px 0;transition:color .22s}
.foot-col a:hover{color:var(--blue)}
.foot-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  padding-top:26px;border-top:1px solid var(--line-soft);
  font-size:12.5px;color:var(--dim-2);
}
.foot-bottom .fb-links{display:flex;gap:20px}
.foot-bottom a:hover{color:var(--dim)}

/* ============ 滚动进入动画 ============ */
.reveal{opacity:0;transform:translateY(26px);transition:opacity .8s cubic-bezier(.2,.8,.3,1),transform .8s cubic-bezier(.2,.8,.3,1)}
.reveal.in{opacity:1;transform:none}

/* ============ 超宽屏：全宽之后补一组间距与字号，避免内容被拉散 ============ */
@media (min-width:1600px){
  .hero-grid{gap:clamp(60px,6vw,140px)}
  .svc{padding:38px 34px 36px}
  .svc h3{font-size:18px}
  .svc p{font-size:14.5px}
  .news-body{padding:26px 26px 28px}
  .news-body h3{font-size:18px}
  .news-card.featured .news-body h3{font-size:23px}
  .news-body p{font-size:14px}
  .adv-visual{min-height:clamp(460px,32vw,620px)}
  .foot-top{gap:clamp(40px,5vw,110px)}
  .console{max-width:640px;margin-left:auto}
}

/* ============ 响应式 ============ */
@media (max-width:1100px){
  .svc-grid{grid-template-columns:repeat(2,1fr)}
  .tech-grid,.ind-grid{grid-template-columns:repeat(2,1fr)}
  .flow{grid-template-columns:repeat(3,1fr);gap:30px 0}
  .flow::before{display:none}
  .plan{padding:28px 22px 26px}
  .plan .p-price b{font-size:30px}
  .news-grid{grid-template-columns:1fr 1fr}
  .news-card.featured{grid-column:1/-1}
  .foot-top{grid-template-columns:1fr 1fr}
}
@media (max-width:1120px){
  /* 菜单项较多，窄屏收起为汉堡，避免挤压 logo 与按钮 */
  .nav-menu,.nav-login,.nav-ghost{display:none}
  .nav-toggle{display:block}
  .drawer{display:none}
  .drawer.open{display:block}
}
@media (max-width:900px){
  .nav-cta{display:none}
  .plan-grid{grid-template-columns:1fr}
  .hero{padding-top:120px;min-height:auto}
  .hero-grid{grid-template-columns:1fr;gap:48px}
  .console{max-width:560px}
  .float-card{right:0}
  .adv-grid{grid-template-columns:1fr}
  .adv-visual{min-height:320px;order:-1}
  .stats-grid{grid-template-columns:1fr 1fr}
  .stat:nth-child(2){border-right:0}
  .stat:nth-child(1),.stat:nth-child(2){border-bottom:1px solid var(--line-soft)}
}
@media (max-width:640px){
  .svc-grid,.news-grid{grid-template-columns:1fr}
  .foot-top{grid-template-columns:1fr}
  .hero-metrics{gap:26px}
  .btn{width:100%}
  .nav{height:64px}
  .mega{top:64px}
  .flow{grid-template-columns:repeat(2,1fr);gap:26px 0}
  .tech-grid,.ind-grid{grid-template-columns:1fr}
  .drawer{inset:64px 0 auto 0;max-height:calc(100vh - 64px)}
  .drawer .sub{grid-template-columns:1fr}
}

/* ==================== 内页通用：页头 ====================
   内页导航是 fixed 72px，所以页头留白要额外加上导航高度。
   背景用极浅的渐变，让页面从导航下方"起坡"，与首页 Hero 的处理一致。 */
.page-head{
  position:relative;overflow:hidden;
  padding:calc(72px + clamp(40px,4.6vw,68px)) 0 clamp(38px,4.2vw,56px);
  background:linear-gradient(180deg,var(--bg-2) 0%,var(--bg) 100%);
  border-bottom:1px solid var(--line-soft);
}
.page-head>.wrap{position:relative;z-index:2}

/* 面包屑 */
.crumb{display:flex;align-items:center;gap:9px;font-size:12.5px;color:var(--dim-2);margin-bottom:24px;flex-wrap:wrap}
.crumb a{color:var(--dim);transition:color .2s}
.crumb a:hover{color:var(--blue)}
.crumb i{font-style:normal;opacity:.45}
.crumb em{font-style:normal;color:var(--text-2)}

.page-head-grid{display:flex;align-items:flex-end;justify-content:space-between;gap:clamp(28px,4vw,64px);flex-wrap:wrap}
.page-head h1{
  font-size:clamp(30px,3.6vw,48px);line-height:1.18;letter-spacing:-.03em;font-weight:800;
  color:var(--text);
}
.page-head .sub{
  color:var(--dim);font-size:15.5px;line-height:1.82;max-width:620px;margin-top:16px;text-wrap:pretty;
}
.head-stats{display:flex;gap:clamp(22px,3vw,48px);padding-bottom:4px}
.head-stats b{
  display:block;font-size:clamp(23px,2.5vw,31px);line-height:1.2;font-weight:800;letter-spacing:-.03em;
  font-variant-numeric:tabular-nums;
  background:var(--grad);-webkit-background-clip:text;background-clip:text;
  -webkit-text-fill-color:transparent;color:transparent;
}
.head-stats span{font-size:12.5px;color:var(--dim-2);letter-spacing:.02em}

/* ==================== 吸顶筛选条 ====================
   粘在导航下面（top:72px），滚动时保持可切换分类。 */
.filter-bar{
  position:sticky;top:72px;z-index:60;
  background:rgba(13,18,26,.9);
  backdrop-filter:blur(16px) saturate(150%);
  -webkit-backdrop-filter:blur(16px) saturate(150%);
  border-bottom:1px solid var(--line-soft);
}
.filter-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:66px}
.tabs{display:flex;align-items:center;gap:4px;overflow-x:auto;scrollbar-width:none}
.tabs::-webkit-scrollbar{display:none}
.tabs a{
  display:inline-flex;align-items:center;gap:6px;
  padding:8px 15px;border-radius:99px;font-size:13.5px;color:var(--dim);
  white-space:nowrap;transition:background .22s,color .22s;
}
.tabs a:hover{background:var(--bg-3);color:var(--text)}
.tabs a.on{background:var(--grad);color:#fff;font-weight:600}
.tabs a b{font-size:11px;font-weight:600;opacity:.55;font-variant-numeric:tabular-nums}

.search-box{position:relative;flex-shrink:0}
.search-box svg{
  position:absolute;left:13px;top:50%;transform:translateY(-50%);
  width:15px;height:15px;stroke:var(--dim-2);stroke-width:2;fill:none;pointer-events:none;
}
.search-box input{
  width:240px;height:38px;border-radius:10px;
  border:1px solid var(--line);background:var(--surface);
  padding:0 14px 0 37px;font-size:13.5px;color:var(--text);
  font-family:inherit;outline:none;transition:border-color .2s,box-shadow .2s;
}
.search-box input::placeholder{color:var(--dim-2)}
.search-box input:focus{border-color:rgba(37,99,235,.45);box-shadow:0 0 0 3px rgba(37,99,235,.09)}

/* ==================== 列表页布局 ==================== */
.news-page{padding:clamp(34px,3.8vw,54px) 0 clamp(64px,7vw,96px)}
.news-layout{
  display:grid;grid-template-columns:minmax(0,1fr) 322px;
  gap:clamp(30px,4vw,62px);align-items:start;
}

/* 头条大卡：左图右文 */
.lead-card{
  display:grid;grid-template-columns:1.08fr 1fr;
  border-radius:22px;overflow:hidden;
  background:var(--surface);border:1px solid var(--line-soft);
  box-shadow:var(--shadow-m);
  margin-bottom:10px;
  transition:transform .35s cubic-bezier(.2,.8,.3,1),box-shadow .35s,border-color .35s;
}
.lead-card:hover{transform:translateY(-4px);border-color:rgba(37,99,235,.2);box-shadow:var(--shadow-l)}
.lead-card .news-thumb{aspect-ratio:auto;height:100%;min-height:322px}
.lead-card .news-body{padding:clamp(22px,2vw,30px);display:flex;flex-direction:column;justify-content:center}
.lead-card .news-meta{gap:9px;flex-wrap:wrap}
.lead-card .lead-flag{
  display:inline-flex;align-items:center;gap:7px;align-self:flex-start;
  padding:4px 11px;border-radius:7px;margin-bottom:14px;
  font-size:11.5px;font-weight:700;letter-spacing:.06em;color:#fff;
  background:var(--grad);
}
.lead-card .lead-flag i{width:5px;height:5px;border-radius:50%;background:var(--surface);opacity:.85;font-style:normal}
.lead-card h2{font-size:clamp(20px,1.6vw,25px);line-height:1.42;letter-spacing:-.015em;font-weight:700;margin-bottom:12px}
.lead-card:hover h2{color:var(--blue)}
.lead-card p{font-size:14px;color:var(--dim);line-height:1.75}
.lead-card .news-meta{margin:16px 0 0}

/* 普通列表：每条左侧缩略图 + 右侧文字 */
.posts{margin-top:14px;border-top:1px solid var(--line-soft)}
.post{
  display:grid;grid-template-columns:216px minmax(0,1fr);gap:clamp(16px,2vw,26px);
  padding:26px 0;border-bottom:1px solid var(--line-soft);
  transition:background .25s;
}
.post-thumb{
  position:relative;overflow:hidden;border-radius:14px;background:var(--bg-2);
  aspect-ratio:16/10;
}
.post-thumb img{
  width:100%;height:100%;object-fit:cover;
  transition:transform .6s cubic-bezier(.2,.8,.3,1);
  filter:saturate(.96) contrast(1.02);
}
.post:hover .post-thumb img{transform:scale(1.055);filter:saturate(1.04) contrast(1.03)}
.post-body{display:flex;flex-direction:column;justify-content:center;min-width:0}
.post-body h3{
  font-size:18.5px;line-height:1.46;letter-spacing:-.01em;font-weight:700;
  color:var(--text);margin-bottom:9px;transition:color .22s;
}
.post:hover .post-body h3{color:var(--blue)}
.post-body p{
  font-size:13.8px;color:var(--dim);line-height:1.72;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
/* 列表内的分类小标签 */
.cate-pill{
  display:inline-flex;align-items:center;
  padding:3px 9px;border-radius:6px;
  font-size:11.5px;font-weight:600;color:var(--blue);
  background:rgba(37,99,235,.08);
}
.post .news-meta{margin-bottom:9px;gap:9px;flex-wrap:wrap}

/* 分页：与 nginx 的 /news-{page}.html 规则对应 */
.pager{display:flex;align-items:center;justify-content:center;gap:6px;margin-top:42px;flex-wrap:wrap}
.pager a,.pager span{
  min-width:38px;height:38px;padding:0 13px;
  display:inline-flex;align-items:center;justify-content:center;
  border-radius:10px;border:1px solid var(--line);background:var(--surface);
  font-size:13.5px;color:var(--dim);font-variant-numeric:tabular-nums;
  transition:all .22s;
}
.pager a:hover{border-color:rgba(37,99,235,.35);color:var(--blue);background:rgba(37,99,235,.03)}
.pager .on{background:var(--grad);border-color:transparent;color:#fff;font-weight:600}
.pager .muted{color:var(--dim-2);opacity:.6;pointer-events:none}
.pager .gap{border:0;background:none;color:var(--dim-2)}

/* 占位说明条（静态预览用） */
.placeholder-note{
  margin-top:26px;padding:14px 18px;border-radius:12px;
  border:1px dashed rgba(37,99,235,.22);background:rgba(37,99,235,.03);
  font-size:12.5px;color:#3B6BC4;line-height:1.75;
}

/* ==================== 侧栏 ==================== */
.news-side{position:sticky;top:calc(72px + 66px + 26px);display:flex;flex-direction:column;gap:18px}
.widget{
  border:1px solid var(--line-soft);border-radius:16px;background:var(--surface);
  padding:22px 22px 20px;box-shadow:var(--shadow-s);
}
.widget h4{
  display:flex;align-items:center;gap:9px;
  font-size:13px;font-weight:700;letter-spacing:.03em;color:var(--text);
  margin-bottom:15px;
}
.widget h4::before{content:"";width:3px;height:13px;border-radius:2px;background:var(--grad)}

.rank{display:flex;align-items:flex-start;gap:12px;padding:11px 0;border-bottom:1px dashed var(--line-soft)}
.rank:first-of-type{padding-top:2px}
.rank:last-child{border-bottom:0;padding-bottom:0}
.rank b{
  width:20px;flex-shrink:0;font-size:14px;font-weight:800;color:var(--dim-2);
  font-variant-numeric:tabular-nums;line-height:1.55;letter-spacing:-.02em;
}
.rank:nth-of-type(1) b{color:#E8590C}
.rank:nth-of-type(2) b{color:#F08C00}
.rank:nth-of-type(3) b{color:#C2A400}
.rank .rk{min-width:0}
.rank p{font-size:13.3px;line-height:1.58;color:var(--text-2);transition:color .2s}
.rank:hover p{color:var(--blue)}
.rank em{display:block;font-style:normal;font-size:11.5px;color:var(--dim-2);margin-top:5px}

.tag-cloud{display:flex;flex-wrap:wrap;gap:7px}
.tag-cloud a{
  padding:6px 12px;border-radius:8px;background:var(--bg-2);
  border:1px solid var(--line-soft);font-size:12.5px;color:var(--dim);
  transition:all .2s;
}
.tag-cloud a:hover{background:var(--surface);border-color:rgba(37,99,235,.3);color:var(--blue);transform:translateY(-1px)}

/* 深色推广卡：侧栏里唯一的深色块，用来打断白卡的节奏 */
.widget-cta{
  position:relative;overflow:hidden;border:0;
  background:linear-gradient(152deg,#131C2B 0%,#1E2C45 100%);
  color:#fff;
}
.widget-cta::after{
  content:"";position:absolute;right:-56px;top:-56px;width:180px;height:180px;border-radius:50%;
  background:radial-gradient(circle,rgba(37,99,235,.62),rgba(37,99,235,0) 70%);
  filter:blur(26px);pointer-events:none;
}
.widget-cta h4{color:#fff;position:relative}
.widget-cta h4::before{background:var(--cyan);opacity:.9}
.widget-cta p{position:relative;font-size:12.8px;line-height:1.72;color:rgba(255,255,255,.62);margin-bottom:16px}
.widget-cta .btn{position:relative;width:100%;height:40px;padding:0;font-size:13px;border-radius:10px}

/* ==================== 详情页 ==================== */
.article-head{
  position:relative;overflow:hidden;
  padding:calc(72px + clamp(38px,4.4vw,62px)) 0 clamp(30px,3.2vw,42px);
  background:linear-gradient(180deg,var(--bg-2) 0%,var(--bg) 100%);
}
.article-head>.wrap{position:relative;z-index:2}
/* 头部与正文共用同一右边界：右栏宽 + 栏间距，保证标题、摘要、正文右边对齐 */
.article-head,.article-wrap{--aside-w:276px;--aside-gap:clamp(36px,4.6vw,74px)}
.article-head .art-in{max-width:none;padding-right:calc(var(--aside-w) + var(--aside-gap))}
.art-cat{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;border-radius:8px;margin-bottom:20px;
  font-size:12px;font-weight:600;letter-spacing:.02em;
  color:var(--blue);background:rgba(37,99,235,.08);
  border:1px solid rgba(37,99,235,.14);
}
.article-head h1{
  font-size:clamp(27px,3.2vw,41px);line-height:1.34;letter-spacing:-.025em;font-weight:800;
  color:var(--text);text-wrap:balance;
}
.art-sub{color:var(--dim);font-size:15.5px;line-height:1.82;margin-top:18px;max-width:840px;text-wrap:pretty}
.art-meta{display:flex;align-items:center;gap:16px;margin-top:26px;flex-wrap:wrap;font-size:12.5px;color:var(--dim-2)}
.art-meta .sep{width:1px;height:12px;background:var(--line)}
.art-author{display:flex;align-items:center;gap:9px;color:var(--text-2)}
.art-author i{
  width:26px;height:26px;border-radius:50%;font-style:normal;
  display:grid;place-items:center;font-size:11px;font-weight:700;color:#fff;
  background:var(--grad);
}
.art-meta .m-item{display:inline-flex;align-items:center;gap:6px}
.art-meta .m-item svg{width:14px;height:14px;stroke:var(--dim-2);stroke-width:1.9;fill:none}

.art-cover{padding-bottom:clamp(34px,3.6vw,50px)}
.art-cover .frame{
  position:relative;border-radius:20px;overflow:hidden;
  border:1px solid var(--line-soft);box-shadow:var(--shadow-m);background:var(--bg-2);
}
.art-cover img{width:100%;aspect-ratio:21/9;object-fit:cover}

.article-wrap{padding:clamp(4px,1vw,10px) 0 clamp(60px,7vw,92px)}
.article-layout{display:grid;grid-template-columns:minmax(0,1fr) var(--aside-w);gap:var(--aside-gap);align-items:start}
/* min-width:0 必须有：正文里的表格与代码块会撑大 grid 项的最小宽度，窄屏时会溢出 */
/* 不再限制 830px：正文跟随列宽自适应，宽屏下不再右侧空一块 */
.article{max-width:none;min-width:0;font-size:16px;line-height:1.95;color:var(--text-2)}
.article>*:first-child{margin-top:0}
.article h2{
  position:relative;
  font-size:23px;line-height:1.5;letter-spacing:-.015em;font-weight:800;color:var(--text);
  margin:46px 0 16px;padding-left:15px;scroll-margin-top:110px;
}
.article h2::before{
  content:"";position:absolute;left:0;top:7px;bottom:7px;width:3px;border-radius:2px;background:var(--grad);
}
.article h3{
  font-size:17.5px;line-height:1.6;font-weight:700;color:var(--text);
  margin:30px 0 10px;scroll-margin-top:110px;
}
.article p{margin-bottom:18px;text-wrap:pretty}
.article strong{color:var(--text);font-weight:600}
.article a{color:var(--blue);border-bottom:1px solid rgba(37,99,235,.28);transition:border-color .2s}
.article a:hover{border-bottom-color:var(--blue)}
.article ul,.article ol{margin:0 0 20px;padding-left:22px}
.article li{margin-bottom:8px}
.article li::marker{color:var(--blue)}
.article blockquote{
  margin:26px 0;padding:20px 24px;border-radius:0 14px 14px 0;
  background:var(--bg-2);border-left:3px solid var(--blue);
  font-size:15px;line-height:1.85;color:var(--text-2);
}
.article blockquote p:last-child{margin-bottom:0}
.article figure{margin:28px 0}
/* 正文拉宽后，固定 max-height 会变成横向长条、裁掉图片上下大半。改用 21:9 比例跟随宽度，和封面一致 */
.article figure img{border-radius:14px;border:1px solid var(--line-soft);width:100%;aspect-ratio:21/9;object-fit:cover}
.article figcaption{font-size:12.5px;color:var(--dim-2);text-align:center;margin-top:10px}

/* 代码块：深色，作为白页面的重音 */
.article pre{
  margin:24px 0;padding:20px 22px;border-radius:14px;overflow-x:auto;
  background:#0D1420;color:#D7E3F4;
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,"PingFang SC","Microsoft YaHei",monospace;
  font-size:13px;line-height:1.85;
  box-shadow:var(--shadow-m);
}
.article pre code{background:none;padding:0;color:inherit;font-size:inherit;border:0}
.article code{
  padding:2px 6px;border-radius:5px;font-size:.9em;
  background:rgba(37,99,235,.07);color:#1D4ED8;
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,"PingFang SC","Microsoft YaHei",monospace;
  border:1px solid rgba(37,99,235,.1);
}

/* 表格 */
.table-wrap{margin:26px 0;border:1px solid var(--line-soft);border-radius:14px;overflow-x:auto;box-shadow:var(--shadow-s)}
.article table{width:100%;border-collapse:collapse;font-size:14px;min-width:520px}
.article th{
  padding:12px 16px;text-align:left;font-weight:600;color:var(--text);
  background:var(--bg-2);border-bottom:1px solid var(--line-soft);white-space:nowrap;
}
.article td{padding:12px 16px;border-bottom:1px solid var(--line-soft);color:var(--dim)}
.article tr:last-child td{border-bottom:0}
.article td b{color:var(--text);font-weight:600}

/* 提示框 */
.note-box{
  margin:26px 0;padding:18px 20px;border-radius:14px;
  border:1px solid rgba(37,99,235,.16);background:rgba(37,99,235,.035);
  font-size:14px;line-height:1.8;color:var(--text-2);
}
.note-box b{display:block;color:var(--blue);font-size:13px;letter-spacing:.02em;margin-bottom:6px}

/* 文末：标签 / 分享 / 上下篇 / 转化 */
.art-tags{
  display:flex;align-items:center;gap:8px;flex-wrap:wrap;
  margin-top:42px;padding-top:26px;border-top:1px solid var(--line-soft);
}
.art-tags>span{font-size:12.5px;color:var(--dim-2);margin-right:2px}
.art-tags a{
  padding:5px 12px;border-radius:8px;background:var(--bg-2);
  border:1px solid var(--line-soft);font-size:12.5px;color:var(--dim);
  transition:all .2s;border-bottom:1px solid var(--line-soft);
}
.art-tags a:hover{background:var(--surface);border-color:rgba(37,99,235,.3);color:var(--blue)}

.art-share{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  margin-top:18px;padding:16px 20px;border-radius:14px;background:var(--bg-2);
}
.art-share .sh-txt{font-size:13px;color:var(--dim)}
.art-share .sh-txt b{color:var(--text);font-weight:600}
.art-share .sh-btns{display:flex;gap:8px}
.art-share button{
  width:34px;height:34px;border-radius:9px;border:1px solid var(--line);
  background:var(--surface);cursor:pointer;display:grid;place-items:center;
  transition:all .22s;
}
.art-share button:hover{border-color:rgba(37,99,235,.4);transform:translateY(-1px)}
.art-share button svg{width:15px;height:15px;stroke:var(--dim);stroke-width:2;fill:none}
.art-share button:hover svg{stroke:var(--blue)}

.art-nav{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:30px}
.art-nav a{
  display:block;padding:18px 20px;border-radius:14px;
  border:1px solid var(--line-soft);background:var(--surface);
  transition:all .26s;
}
.art-nav a:hover{border-color:rgba(37,99,235,.28);box-shadow:var(--shadow-s);transform:translateY(-2px)}
.art-nav em{
  display:flex;align-items:center;gap:6px;font-style:normal;
  font-size:11.5px;color:var(--dim-2);margin-bottom:7px;
}
.art-nav em svg{width:12px;height:12px;stroke:currentColor;stroke-width:2.2;fill:none}
.art-nav b{display:block;font-size:14px;font-weight:600;line-height:1.55;color:var(--text)}
.art-nav .next{text-align:right}
.art-nav .next em{justify-content:flex-end}
.art-nav a:hover b{color:var(--blue)}

.art-cta{
  margin-top:26px;padding:clamp(24px,2.6vw,32px);border-radius:16px;
  background:linear-gradient(152deg,#0D1420,#16243D);color:#fff;
  display:flex;align-items:center;justify-content:space-between;gap:24px;flex-wrap:wrap;
  position:relative;overflow:hidden;
}
.art-cta::after{
  content:"";position:absolute;right:-70px;top:-70px;width:220px;height:220px;border-radius:50%;
  background:radial-gradient(circle,rgba(37,99,235,.55),rgba(37,99,235,0) 70%);filter:blur(30px);
}
.art-cta .c-txt{position:relative;max-width:520px}
.art-cta h5{font-size:17px;font-weight:700;margin-bottom:7px;letter-spacing:-.01em}
.art-cta p{font-size:13px;line-height:1.7;color:rgba(255,255,255,.62);margin:0}
.art-cta .btn{position:relative;height:44px;font-size:14px;padding:0 24px;flex-shrink:0}

/* 侧栏目录 */
.article-side{position:sticky;top:96px;display:flex;flex-direction:column;gap:18px}
.toc a{
  display:block;padding:7px 0 7px 13px;
  border-left:1px solid var(--line);
  font-size:13px;line-height:1.55;color:var(--dim);
  transition:color .2s,border-color .2s,padding .2s;
}
.toc a:hover{color:var(--blue);border-left-color:rgba(37,99,235,.5)}
.toc a.lv3{padding-left:25px;font-size:12.5px;color:var(--dim-2)}
.toc a.on{color:var(--blue);border-left-color:var(--blue);font-weight:600}
.side-note{font-size:12px;color:var(--dim-2);line-height:1.7;margin-top:4px}

/* ==================== 响应式 ==================== */
@media (max-width:1180px){
  .news-layout{grid-template-columns:minmax(0,1fr) 290px}
  .article-head,.article-wrap{--aside-w:250px}
}
@media (max-width:1080px){
  .news-layout{grid-template-columns:1fr}
  .news-side{position:static;flex-direction:row;flex-wrap:wrap}
  .news-side .widget{flex:1 1 280px;min-width:0}
  .article-layout{grid-template-columns:minmax(0,1fr)}
  .article{max-width:none}
  /* 单列堆叠后右栏不再占位，头部恢复整宽 */
  .article-head .art-in{padding-right:0}
  .article-side{position:static;flex-direction:row;flex-wrap:wrap}
  .article-side .widget{flex:1 1 280px;min-width:0}
  .article-side .widget.toc-w{display:none}
}
@media (max-width:900px){
  .page-head{padding-top:calc(64px + 36px)}
  .filter-bar{top:64px}
  .filter-inner{height:auto;padding:11px 0;flex-wrap:wrap;gap:12px}
  .search-box{width:100%}
  .search-box input{width:100%}
  .lead-card{grid-template-columns:1fr}
  .lead-card .news-thumb{min-height:0;aspect-ratio:16/9}
  .post{grid-template-columns:172px minmax(0,1fr)}
  .head-stats{gap:26px;padding-bottom:0}
  .article-head{padding-top:calc(64px + 34px)}
  .art-nav{grid-template-columns:1fr}
  .art-nav .next{text-align:left}
  .art-nav .next em{justify-content:flex-start}
}
@media (max-width:640px){
  .page-head h1{font-size:27px}
  .head-stats{width:100%;justify-content:space-between}
  .news-side{flex-direction:column}
  .post{grid-template-columns:1fr;gap:14px}
  .post-thumb{aspect-ratio:16/9}
  .post-body h3{font-size:17px}
  .article{font-size:15.5px;line-height:1.9}
  .article h2{font-size:20px;margin-top:36px}
  .article h3{font-size:16.5px}
  .article-head h1{font-size:24px;line-height:1.4}
  .art-sub{font-size:14.5px}
  .art-meta{gap:10px 14px}
  .art-cover img{aspect-ratio:16/10}
  .art-cta{padding:22px}
  .art-cta .btn{width:100%}
}

/* 宽屏正文自适应后，单行字数会变多。字号与行距同步放大一档，补偿阅读密度 */
@media (min-width:1600px){
  .article{font-size:17px;line-height:2.02}
  .article h2{font-size:25px}
  .article h3{font-size:18.5px}
}