/* 此刻互娱官网·设计系统 */

:root{
  /* 色板参考旧站：深靛蓝 #221C5A、紫 #62408C、洋红 #E625A4、淡紫 #EFE2FF */
  --ink:#221C5A;
  --ink_soft:#2A2366;
  --ink_line:#3A3378;
  --paper:#FFFFFF;
  --warm:#F3F1F6;
  --accent:#D4179A;
  --purple:#62408C;
  --lilac:#C9A6F2;
  --rose:#FF9ECB;
  --muted:#7762A1;
  --muted_light:rgba(243,241,246,.64);
  --line:rgba(34,28,90,.14);
  --line_strong:rgba(34,28,90,.28);
  --line_dark:rgba(239,226,255,.18);
  --r_s:10px;
  --r_m:18px;
  --r_l:26px;
  --r_xl:36px;
  --wrap:1320px;
  --pad:clamp(20px,4vw,48px);
  --sec:clamp(64px,9vw,128px);
  --font:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Noto Sans CJK SC","Microsoft YaHei",sans-serif;
  --mono:"SF Mono","JetBrains Mono",Consolas,"Courier New",monospace;
}

*{box-sizing:border-box;margin:0;padding:0}

html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}

body{
  font-family:var(--font);
  font-size:17px;
  line-height:1.75;
  color:var(--ink);
  background:var(--paper);
  letter-spacing:0;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}

body.is_locked{overflow:hidden}

img{display:block;max-width:100%;height:auto}
svg{display:block}
a{color:inherit;text-decoration:none}
ul,ol{list-style:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
figure{margin:0}
::selection{background:var(--lilac);color:var(--ink)}

:focus-visible{outline:2px solid var(--purple);outline-offset:3px}

.wrap{width:min(var(--wrap),calc(100% - var(--pad) * 2));margin:0 auto}

.mono{font-family:var(--mono);font-size:12px;line-height:1.5}

.skip_link{
  position:absolute;left:-9999px;top:0;background:var(--lilac);color:var(--ink);
  padding:12px 20px;z-index:200;font-weight:700
}
.skip_link:focus{left:12px;top:12px}

/* 页头 */
.site_header{
  position:fixed;inset:0 0 auto 0;z-index:100;
  color:var(--warm);
  border-bottom:1px solid transparent;
  transition:background-color .25s ease,color .25s ease,border-color .25s ease
}
.site_header.is_scrolled{
  background:rgba(255,255,255,.96);
  color:var(--ink);
  border-bottom-color:var(--line);
  backdrop-filter:none
}
.header_inner{
  display:flex;align-items:center;justify-content:space-between;
  height:78px;gap:24px
}
.brand{display:inline-flex;align-items:center;gap:12px;flex-shrink:0}
.brand_mark{width:38px;height:38px}
.brand_text{display:flex;flex-direction:column;line-height:1.15}
.brand_text strong{font-size:18px;font-weight:800}
.brand_text em{font-family:var(--mono);font-style:normal;font-size:9px;opacity:.62;margin-top:3px}

.main_nav{display:flex;align-items:center;gap:clamp(14px,1.8vw,28px)}
.main_nav a{
  position:relative;font-size:14.5px;font-weight:600;padding:6px 0;
  color:currentColor;opacity:.78;transition:opacity .2s ease,color .2s ease
}
.main_nav a::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;
  background:var(--accent);transform:scaleX(0);transform-origin:left;
  transition:transform .25s ease
}
.main_nav a:hover{opacity:1}
.main_nav a:hover::after,.main_nav a.is_active::after{transform:scaleX(1)}
.main_nav a.is_active{opacity:1}

.header_cta{
  display:inline-flex;align-items:center;gap:8px;flex-shrink:0;
  font-size:14px;font-weight:700;padding:11px 22px;border-radius:999px;
  border:1px solid currentColor;transition:background-color .2s ease,color .2s ease,border-color .2s ease
}
.header_cta:hover{background:var(--lilac);border-color:var(--lilac);color:var(--ink)}
.site_header.is_scrolled .header_cta:hover{background:var(--ink);border-color:var(--ink);color:var(--warm)}
.header_cta svg{width:13px;height:13px}

.nav_toggle{
  display:none;width:44px;height:44px;border:1px solid currentColor;border-radius:999px;
  align-items:center;justify-content:center;flex-direction:column;gap:5px
}
.nav_toggle span{display:block;width:18px;height:1.5px;background:currentColor;transition:transform .25s ease,opacity .25s ease}
.nav_toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(3.25px) rotate(45deg)}
.nav_toggle[aria-expanded="true"] span:nth-child(2){transform:translateY(-3.25px) rotate(-45deg)}

@media (max-width:1024px){
  .main_nav{
    position:fixed;inset:0;z-index:-1;
    background:var(--ink);color:var(--warm);
    flex-direction:column;align-items:flex-start;justify-content:center;
    gap:6px;padding:0 var(--pad);
    opacity:0;visibility:hidden;transition:opacity .3s ease,visibility .3s ease
  }
  .site_header.is_menu_open{background:var(--ink);color:var(--warm);border-bottom-color:transparent}
  .site_header.is_menu_open .main_nav{opacity:1;visibility:visible}
  .main_nav a{font-size:clamp(28px,7vw,44px);font-weight:800;padding:10px 0;opacity:1}
  .main_nav a::after{height:3px;background:var(--lilac)}
  .main_nav a.is_active{color:var(--lilac)}
  .nav_toggle{display:flex;z-index:2}
  .header_cta{display:none}
  .brand_text em{display:none}
}
@media (max-width:560px){
  .brand_text strong{font-size:16px}
  .brand_mark{width:34px;height:34px}
}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  height:54px;padding:0 28px;border-radius:999px;
  font-size:15px;font-weight:700;line-height:1;
  border:1px solid var(--ink);
  transition:background-color .22s ease,color .22s ease,border-color .22s ease
}
.btn svg{width:15px;height:15px}
.btn_solid{background:var(--ink);color:var(--warm)}
.btn_solid:hover{background:var(--accent);border-color:var(--accent);color:var(--warm)}
.btn_violet{background:var(--lilac);border-color:var(--lilac);color:var(--ink)}
.btn_violet:hover{background:var(--warm);border-color:var(--warm)}
.btn_ghost{background:transparent;color:var(--ink);border-color:var(--line_strong)}
.btn_ghost:hover{background:var(--ink);color:var(--warm);border-color:var(--ink)}
.btn_warm{background:var(--warm);border-color:var(--warm);color:var(--ink)}
.btn_warm:hover{background:var(--lilac);border-color:var(--lilac)}
.btn_outline_light{background:transparent;border-color:rgba(243,241,246,.4);color:var(--warm)}
.btn_outline_light:hover{background:var(--warm);border-color:var(--warm);color:var(--ink)}
.btn_row{display:flex;flex-wrap:wrap;gap:12px}

.link_arrow{
  display:inline-flex;align-items:center;gap:8px;font-size:14px;font-weight:700;
  border-bottom:1px solid currentColor;padding-bottom:3px
}
.link_arrow svg{width:13px;height:13px;transition:transform .2s ease}
.link_arrow:hover{color:var(--accent)}

/* 页头通用、标题 */
.sec_label{
  display:inline-flex;align-items:center;gap:10px;
  font-family:var(--mono);font-size:12px;font-weight:500;
  color:var(--muted);margin-bottom:22px
}
.sec_label::before{
  content:"";width:9px;height:9px;background:var(--accent);border-radius:2px
}
.on_dark .sec_label{color:var(--muted_light)}
.on_dark .sec_label::before{background:var(--lilac)}

.sec_title{
  font-size:clamp(30px,4.4vw,60px);
  line-height:1.06;font-weight:800;
  text-wrap:balance;
  max-width:20em
}
.sec_title em{font-style:normal;color:var(--accent)}
.on_dark .sec_title em{color:var(--lilac)}
.sec_lead{font-size:16px;line-height:1.8;color:var(--muted);max-width:34em}
.on_dark .sec_lead{color:var(--muted_light)}
.sec_head{
  display:grid;grid-template-columns:minmax(0,1.3fr) minmax(0,.7fr);
  gap:clamp(20px,4vw,56px);align-items:end;
  margin-bottom:clamp(36px,5vw,64px)
}
.sec_head .sec_label{grid-column:1 / -1;margin-bottom:0}
.sec_head .sec_lead{padding-bottom:6px}

.section{padding:var(--sec) 0}
.section_tight{padding:calc(var(--sec) * .62) 0}
.section_dark{background:var(--ink);color:var(--warm)}
.section_dark .sec_label{color:var(--muted_light)}
.section_dark .sec_label::before{background:var(--lilac)}
.section_dark .sec_title em{color:var(--lilac)}
.section_dark .sec_lead{color:var(--muted_light)}
.section_warm{background:var(--warm)}
.section_violet{background:var(--lilac);color:var(--ink)}
.section_coral{background:var(--accent);color:var(--warm)}

/* 首页Hero */
.hero{
  position:relative;background:var(--ink);color:var(--warm);
  padding:calc(78px + clamp(40px,7vw,86px)) 0 clamp(40px,6vw,72px);
  overflow:hidden
}
.hero_grid{
  display:grid;grid-template-columns:minmax(0,1.08fr) minmax(0,.92fr);
  gap:clamp(28px,4vw,64px);align-items:center
}
.hero_kicker{
  display:inline-flex;align-items:center;gap:12px;flex-wrap:wrap;
  font-family:var(--mono);font-size:12px;color:var(--muted_light);margin-bottom:30px
}
.hero_kicker b{
  display:inline-flex;align-items:center;gap:7px;color:var(--ink);background:var(--lilac);
  padding:5px 12px;border-radius:999px;font-weight:700
}
.hero_kicker b::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--ink)}
.hero_title{
  font-size:clamp(52px,8.2vw,116px);
  line-height:.98;font-weight:900;text-wrap:balance
}
.hero_title span{display:block}
.hero_title .hero_dot{display:inline;color:var(--accent)}
.hero_title em{font-style:normal;color:var(--lilac)}
.hero_lead{
  margin-top:28px;max-width:31em;font-size:clamp(15px,1.4vw,17px);
  line-height:1.9;color:var(--muted_light)
}
.hero_lead strong{color:var(--warm);font-weight:700}
.hero_actions{margin-top:36px}
.hero_meta{
  display:flex;flex-wrap:wrap;gap:12px 28px;margin-top:44px;
  padding-top:22px;border-top:1px solid var(--line_dark);
  font-size:12.5px;color:var(--muted_light)
}
.hero_meta span{display:inline-flex;align-items:center;gap:8px}
.hero_meta svg{width:14px;height:14px;color:var(--lilac)}

.hero_wall{
  display:grid;grid-template-columns:1fr 1fr;grid-template-rows:1fr 1fr;
  gap:12px;aspect-ratio:1/1
}
.wall_tile{
  position:relative;border-radius:var(--r_m);overflow:hidden;
  padding:16px;display:flex;flex-direction:column;justify-content:space-between;
  min-height:0
}
.wall_tile .wt_top{
  display:flex;align-items:flex-start;justify-content:space-between;
  font-family:var(--mono);font-size:10.5px
}
.wall_tile .wt_name{font-size:clamp(17px,1.6vw,22px);font-weight:800;line-height:1.2}
.wall_tile .wt_sub{font-size:10.5px;opacity:.7;margin-top:4px}
.wt_a{background:var(--accent);color:var(--warm)}
.wt_b{background:var(--lilac);color:var(--ink)}
.wt_c{background:var(--purple);color:var(--warm)}
.wt_cube{flex:1;display:flex;align-items:center;justify-content:center;min-height:0;padding:8px 0}
.wt_cube svg{width:min(76%,130px);height:auto;max-height:100%;stroke:var(--lilac)}
.wt_cube svg path:nth-child(2){stroke:var(--accent)}
.wt_d{background:var(--warm);color:var(--ink)}

.wt_phone{
  width:56%;aspect-ratio:9/16;background:var(--paper);border-radius:9px;
  border:1px solid rgba(34,28,90,.2);margin:2px auto 0;padding:7px 6px;
  display:flex;flex-direction:column;gap:4px
}
.wt_phone i{display:block;height:4px;border-radius:2px;background:var(--ink);opacity:.16}
.wt_phone i:first-child{width:60%;height:16px;border-radius:4px;background:var(--accent);opacity:1}
.wt_phone i:nth-child(3){width:80%}
.wt_phone i:last-child{margin-top:auto;height:14px;border-radius:4px;background:var(--ink);opacity:.85}

.wt_big{padding:4px 0 0}
.wt_big b{
  font-family:var(--mono);font-size:clamp(24px,2.8vw,34px);font-weight:700;line-height:1;
  display:block
}
.wt_bars{display:flex;gap:4px;align-items:flex-end;height:34px;margin-top:10px}
.wt_bars i{flex:1;background:var(--ink);border-radius:2px;display:block}
.wt_bars i:nth-child(1){height:30%}
.wt_bars i:nth-child(2){height:52%}
.wt_bars i:nth-child(3){height:42%}
.wt_bars i:nth-child(4){height:76%}
.wt_bars i:nth-child(5){height:100%}
.wt_bars i:nth-child(6){height:64%}

.wt_dash{
  background:var(--ink);border-radius:10px;padding:8px;display:flex;flex-direction:column;gap:5px;
  margin-top:2px
}
.wt_dash i{display:block;height:5px;border-radius:2px;background:rgba(243,241,246,.22)}
.wt_dash i:first-child{width:44%;background:var(--lilac);opacity:1;height:8px}
.wt_dash i:nth-child(2){width:82%}
.wt_dash i:nth-child(3){width:66%}
.wt_dash i:nth-child(4){width:74%;background:var(--accent);opacity:1}

.hero_timecode{
  display:flex;align-items:center;justify-content:space-between;gap:20px;
  margin-top:clamp(36px,5vw,64px);padding-top:18px;border-top:1px solid var(--line_dark);
  font-family:var(--mono);font-size:11px;color:var(--muted_light)
}
.hero_timecode .htc_dot{display:inline-flex;align-items:center;gap:8px}
.hero_timecode .htc_dot::before{
  content:"";width:7px;height:7px;border-radius:50%;background:var(--accent);
  animation:blink 2.4s ease-in-out infinite
}
@keyframes blink{0%,100%{opacity:1}50%{opacity:.25}}

@media (max-width:1024px){
  .hero_grid{grid-template-columns:1fr}
  .hero_wall{aspect-ratio:auto;grid-template-rows:none;margin-top:8px}
  .wall_tile{min-height:170px}
}
@media (max-width:560px){
  .hero{padding-top:calc(78px + 28px)}
  .wall_tile{min-height:148px;padding:12px}
  .hero_meta{font-size:11.5px;gap:10px 18px}
  .hero_timecode{font-size:10px;flex-wrap:wrap;gap:8px}
}

/* 跑马灯 */
.marquee{
  background:var(--accent);color:var(--warm);
  border-top:1px solid var(--ink);border-bottom:1px solid var(--ink);
  overflow:hidden;padding:14px 0
}
.marquee_track{display:flex;align-items:center;gap:0;width:max-content;animation:marq 34s linear infinite}
.marquee:hover .marquee_track{animation-play-state:paused}
.marquee_item{
  display:inline-flex;align-items:center;gap:26px;padding:0 28px;
  font-size:16px;font-weight:800;white-space:nowrap
}
.marquee_item svg{width:10px;height:10px;flex-shrink:0}
@keyframes marq{from{transform:translateX(0)}to{transform:translateX(-50%)}}
@media (prefers-reduced-motion:reduce){
  .marquee_track{animation:none}
  .hero_timecode .htc_dot::before{animation:none}
}

/* 品牌口号 */
/* 通用卡片 */
.card{
  background:var(--paper);border:1px solid var(--line);border-radius:var(--r_l);
  padding:clamp(22px,3vw,34px)
}
.chip{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12px;font-weight:600;padding:5px 12px;border-radius:999px;
  border:1px solid currentColor;line-height:1.5
}
.chip_row{display:flex;flex-wrap:wrap;gap:8px}

.arrow_btn{
  width:44px;height:44px;border-radius:50%;border:1px solid currentColor;
  display:inline-flex;align-items:center;justify-content:center;flex-shrink:0;
  transition:background-color .2s ease,color .2s ease
}
.arrow_btn svg{width:15px;height:15px}
.arrow_btn:hover{background:var(--ink);color:var(--warm)}

/* 品牌主张 */
.manifesto{padding:var(--sec) 0;background:var(--paper)}
.manifesto_grid{
  display:grid;grid-template-columns:minmax(0,.9fr) minmax(0,1.1fr);
  gap:clamp(28px,5vw,80px)
}
.manifesto_statement{
  font-size:clamp(26px,3.4vw,46px);line-height:1.25;font-weight:800;text-wrap:balance
}
.manifesto_statement em{font-style:normal;color:var(--accent)}
.manifesto_right{display:flex;flex-direction:column;gap:32px;justify-content:center}
.manifesto_text{font-size:16px;color:var(--muted);line-height:1.9;max-width:34em}
.manifesto_points{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}
.mp_item{border-top:1px solid var(--line_strong);padding-top:14px}
.mp_item b{display:block;font-family:var(--mono);font-size:11px;color:var(--muted);margin-bottom:6px}
.mp_item span{font-size:14px;font-weight:700}
@media (max-width:900px){
  .manifesto_grid{grid-template-columns:1fr}
  .manifesto_points{grid-template-columns:1fr;gap:0}
  .mp_item{display:flex;align-items:baseline;gap:14px;padding:12px 0}
  .mp_item b{margin-bottom:0}
}

/* 服务矩阵 */
.srv_grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.srv_card{
  position:relative;border-radius:var(--r_l);padding:clamp(24px,3vw,38px);
  display:flex;flex-direction:column;gap:18px;min-height:340px;
  transition:background-color .3s ease,transform .3s ease,box-shadow .3s ease
}
.srv_card .srv_top{display:flex;align-items:center;justify-content:space-between;gap:16px}
.srv_num{font-family:var(--mono);font-size:12px;opacity:.7}
.srv_icon{width:52px;height:52px;border:1px solid currentColor;border-radius:50%;display:flex;align-items:center;justify-content:center}
.srv_icon svg{width:24px;height:24px}
.srv_card h3{font-size:clamp(24px,2.5vw,34px);line-height:1.15;font-weight:800}
.srv_card p{font-size:14.5px;line-height:1.8;opacity:.8;max-width:32em}
.srv_card .chip_row{margin-top:auto}
.srv_card .chip{border-color:currentColor;opacity:.9}
.srv_card .srv_link{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:700;
  margin-top:2px
}
.srv_card .srv_link svg{width:13px;height:13px}
.srv_coral{background:var(--accent);color:var(--warm)}
.srv_violet{background:var(--lilac);color:var(--ink)}
.srv_blue{background:var(--purple);color:var(--warm)}
.srv_dark{background:var(--ink);color:var(--warm);border:1px solid var(--ink)}
.srv_card:hover{transform:translateY(-3px);box-shadow:0 18px 38px rgba(34,28,90,.16)}
.srv_coral:hover{background:#C3138A}
.srv_violet:hover{background:#BB90EC}
.srv_blue:hover{background:#573A7B}
.srv_dark:hover{background:#2A2370;border-color:#2A2370}
@media (max-width:860px){
  .srv_grid{grid-template-columns:1fr}
  .srv_card{min-height:0}
}

/* 案例卡 */
.case_grid{display:grid;grid-template-columns:1fr 1fr;gap:clamp(16px,2vw,24px)}
.case_card{display:flex;flex-direction:column;gap:18px}
.case_media{
  position:relative;border-radius:var(--r_l);overflow:hidden;
  border:1px solid var(--line);background:var(--warm);
  aspect-ratio:4/3
}
.case_media img{width:100%;height:100%;object-fit:cover;filter:saturate(.92);transition:filter .3s ease}
.case_card:hover .case_media img{filter:saturate(1.05)}
.case_media .case_tag{
  position:absolute;top:14px;left:14px;background:var(--warm);color:var(--ink);
  font-size:11px;font-weight:700;padding:5px 12px;border-radius:999px
}
.case_body{display:flex;flex-direction:column;gap:8px;padding:0 4px}
.case_body h3{font-size:clamp(19px,2vw,25px);line-height:1.3;font-weight:800}
.case_body p{font-size:14px;color:var(--muted);line-height:1.7}
.case_meta{
  display:flex;flex-wrap:wrap;gap:8px 16px;font-family:var(--mono);font-size:11px;
  color:var(--muted)
}
.case_meta span{display:inline-flex;align-items:center;gap:6px}
.case_meta span::before{content:"";width:4px;height:4px;border-radius:50%;background:var(--accent)}
@media (max-width:860px){
  .case_grid{grid-template-columns:1fr}
}

/* 数据带 */
.stats_band{background:var(--ink);color:var(--warm);padding:clamp(44px,6vw,80px) 0}
.stats_grid{display:grid;grid-template-columns:repeat(4,1fr);gap:0}
.stat_item{padding:0 clamp(14px,2vw,28px);border-left:1px solid var(--line_dark)}
.stat_item:first-child{border-left:0;padding-left:0}
.stat_num{
  display:flex;align-items:baseline;gap:4px;
  font-size:clamp(40px,5.6vw,78px);font-weight:900;line-height:1
}
.stat_num small{font-size:clamp(16px,2vw,26px);font-weight:700;color:var(--lilac)}
.stat_item:nth-child(2) .stat_num small{color:var(--rose)}
.stat_item:nth-child(3) .stat_num small{color:var(--rose)}
.stat_item:nth-child(4) .stat_num small{color:var(--lilac)}
.stat_label{margin-top:12px;font-size:13px;color:var(--muted_light)}
@media (max-width:860px){
  .stats_grid{grid-template-columns:1fr 1fr;gap:28px 0}
  .stat_item:nth-child(3){border-left:0;padding-left:0}
}

/* OEM */
.oem_grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:clamp(28px,5vw,72px)}
.oem_title{font-size:clamp(30px,4.2vw,56px);line-height:1.08;font-weight:800;text-wrap:balance}
.oem_text{margin-top:20px;font-size:15.5px;line-height:1.85;max-width:30em}
.oem_note{
  display:flex;align-items:flex-start;gap:12px;margin-top:28px;
  padding-top:20px;border-top:1px solid rgba(34,28,90,.3);font-size:13px;max-width:32em
}
.oem_note svg{width:18px;height:18px;flex-shrink:0;margin-top:2px}
.oem_steps{display:flex;flex-direction:column}
.oem_step{
  display:grid;grid-template-columns:56px 1fr auto;gap:16px;align-items:baseline;
  padding:18px 0;border-top:1px solid rgba(34,28,90,.24)
}
.oem_step:last-child{border-bottom:1px solid rgba(34,28,90,.24)}
.oem_step b{font-family:var(--mono);font-size:12px;opacity:.7}
.oem_step h4{font-size:18px;font-weight:800}
.oem_step p{font-size:13px;line-height:1.7;opacity:.75;margin-top:3px}
.oem_step span{font-family:var(--mono);font-size:11px;opacity:.6}
@media (max-width:900px){
  .oem_grid{grid-template-columns:1fr}
}

/* 交付保障 */
.assure_grid{display:grid;grid-template-columns:1fr 1fr;gap:0}
.assure_item{
  padding:clamp(20px,3vw,34px) 0;border-top:1px solid var(--line);
  display:grid;grid-template-columns:44px 1fr;gap:18px
}
.assure_num{font-family:var(--mono);font-size:12px;color:var(--accent);padding-top:4px}
.assure_item h4{font-size:19px;font-weight:800}
.assure_item p{font-size:14px;color:var(--muted);line-height:1.75;margin-top:6px;max-width:30em}
.assure_item:nth-child(odd){padding-right:clamp(20px,4vw,60px)}
.assure_item:nth-child(even){padding-left:clamp(20px,4vw,60px);border-left:1px solid var(--line)}
@media (max-width:820px){
  .assure_grid{grid-template-columns:1fr}
  .assure_item:nth-child(odd){padding-right:0}
  .assure_item:nth-child(even){padding-left:0;border-left:0}
}

/* 洞察卡 */
.insight_grid{display:grid;grid-template-columns:repeat(3,1fr);gap:clamp(16px,2vw,24px)}
.insight_card{display:flex;flex-direction:column;gap:16px}
.insight_cover{
  position:relative;border-radius:var(--r_m);aspect-ratio:16/10;overflow:hidden;
  padding:18px;display:flex;flex-direction:column;justify-content:space-between;
  border:1px solid var(--line)
}
.insight_cover .ic_num{font-family:var(--mono);font-size:11px;opacity:.7}
.insight_cover .ic_word{font-size:clamp(30px,3.4vw,46px);font-weight:900;line-height:.95}
.insight_cover .ic_word span{display:block}
.insight_cover .ic_mark{position:absolute;right:14px;bottom:12px;width:54px;height:54px;opacity:.9}
.ic_coral{background:var(--accent);color:var(--warm)}
.ic_violet{background:var(--lilac);color:var(--ink)}
.ic_black{background:var(--ink);color:var(--warm)}
.ic_amber{background:var(--rose);color:var(--ink)}
.ic_blue{background:var(--purple);color:var(--warm)}
.insight_meta{display:flex;gap:14px;font-family:var(--mono);font-size:11px;color:var(--muted)}
.insight_card h3{font-size:18px;line-height:1.45;font-weight:800}
.insight_card p{font-size:13.5px;color:var(--muted);line-height:1.7}
.insight_card .link_arrow{margin-top:auto;font-size:13px}
@media (max-width:960px){
  .insight_grid{grid-template-columns:1fr 1fr}
}
@media (max-width:640px){
  .insight_grid{grid-template-columns:1fr}
}

/* CTA */
.cta_band{padding:0 0 var(--sec)}
.cta_inner{
  background:var(--ink);color:var(--warm);border-radius:var(--r_xl);
  padding:clamp(34px,6vw,76px);display:grid;grid-template-columns:1.2fr .8fr;
  gap:clamp(20px,4vw,48px);align-items:end
}
.cta_title{font-size:clamp(32px,5vw,68px);line-height:1.02;font-weight:900;text-wrap:balance}
.cta_title em{font-style:normal;color:var(--lilac)}
.cta_right{display:flex;flex-direction:column;align-items:flex-start;gap:18px;padding-bottom:6px}
.cta_mail{
  font-size:clamp(17px,2vw,22px);font-weight:700;border-bottom:1px solid var(--line_dark);
  padding-bottom:4px;transition:color .2s ease,border-color .2s ease
}
.cta_mail:hover{color:var(--lilac);border-color:var(--lilac)}
.cta_note{font-size:12px;color:var(--muted_light);line-height:1.7}
@media (max-width:820px){
  .cta_inner{grid-template-columns:1fr}
}

/* 通用页面Hero */
.page_hero{
  background:var(--ink);color:var(--warm);
  padding:calc(78px + clamp(40px,6vw,74px)) 0 clamp(38px,5vw,60px)
}
.crumb{
  display:flex;align-items:center;gap:8px;flex-wrap:wrap;
  font-family:var(--mono);font-size:11px;color:var(--muted_light);margin-bottom:26px
}
.crumb a{opacity:.75}
.crumb a:hover{opacity:1;color:var(--lilac)}
.crumb i{font-style:normal;opacity:.4}
.page_hero_grid{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:clamp(24px,4vw,64px);align-items:end}
.page_kicker{
  display:inline-flex;align-items:center;gap:9px;font-family:var(--mono);font-size:11.5px;
  color:var(--muted_light);margin-bottom:20px
}
.page_kicker::before{content:"";width:9px;height:9px;background:var(--lilac);border-radius:2px}
.reveal_red .page_kicker::before{background:var(--accent)}
.page_title{
  font-size:clamp(42px,7.4vw,92px);line-height:.98;font-weight:900;text-wrap:balance
}
.page_title em{font-style:normal;color:var(--accent)}
.page_lead{
  margin-top:24px;max-width:38em;font-size:clamp(15px,1.5vw,17px);
  line-height:1.85;color:var(--muted_light)
}
.page_index{
  font-family:var(--mono);font-size:clamp(56px,9vw,116px);font-weight:700;line-height:.8;
  color:transparent;-webkit-text-stroke:1px rgba(243,241,246,.25);
  padding-bottom:6px
}
.page_strip{
  display:flex;flex-wrap:wrap;gap:10px;margin-top:clamp(28px,4vw,44px);
  padding-top:22px;border-top:1px solid var(--line_dark)
}
.page_strip .chip{border-color:rgba(243,241,246,.28);color:var(--muted_light);font-size:12px}
@media (max-width:820px){
  .page_hero_grid{grid-template-columns:1fr}
  .page_index{display:none}
}

/* 服务页 */
.cap_list{display:flex;flex-direction:column;gap:0}
.cap_item{
  display:grid;grid-template-columns:80px minmax(0,1fr) minmax(0,1.1fr);
  gap:clamp(18px,3vw,48px);padding:clamp(26px,4vw,48px) 0;
  border-top:1px solid var(--line)
}
.cap_item:last-child{border-bottom:1px solid var(--line)}
.cap_num{font-family:var(--mono);font-size:12px;color:var(--accent);padding-top:6px}
.cap_head h3{font-size:clamp(23px,2.6vw,34px);line-height:1.2;font-weight:800}
.cap_head .chip_row{margin-top:14px}
.cap_head .chip{font-size:11px;color:var(--muted);border-color:var(--line_strong)}
.cap_body p{font-size:14.5px;line-height:1.85;color:var(--muted)}
.cap_body .cap_points{margin-top:16px;display:grid;grid-template-columns:1fr 1fr;gap:6px 20px}
.cap_points li{font-size:13px;color:var(--ink);display:flex;gap:8px;align-items:baseline}
.cap_points li::before{content:"";width:5px;height:5px;background:var(--purple);border-radius:50%;flex-shrink:0}
@media (max-width:900px){
  .cap_item{grid-template-columns:44px 1fr;gap:12px 18px}
  .cap_body{grid-column:2}
}

/* 技术栈 */
.stack_grid{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}
.stack_card{
  border:1px solid var(--line);border-radius:var(--r_m);padding:22px;
  background:var(--paper);display:flex;flex-direction:column;gap:10px
}
.stack_card b{font-family:var(--mono);font-size:11px;color:var(--muted)}
.stack_card h4{font-size:16px;font-weight:800}
.stack_card p{font-size:12.5px;color:var(--muted);line-height:1.7}
@media (max-width:900px){.stack_grid{grid-template-columns:1fr 1fr}}
@media (max-width:520px){.stack_grid{grid-template-columns:1fr}}

/* 流程 */
.flow_grid{display:grid;grid-template-columns:repeat(5,1fr);gap:0;border-top:1px solid var(--line_dark)}
.flow_item{padding:20px 18px 0 0;position:relative}
.flow_item b{font-family:var(--mono);font-size:11px;color:var(--lilac);display:block;margin-bottom:14px}
.flow_item h4{font-size:16px;font-weight:800;color:var(--warm)}
.flow_item p{font-size:12.5px;line-height:1.65;color:var(--muted_light);margin-top:6px}
.flow_item::before{content:"";position:absolute;left:0;top:-1px;width:26px;height:3px;background:var(--accent)}
@media (max-width:900px){.flow_grid{grid-template-columns:1fr 1fr;gap:20px 0}}
@media (max-width:520px){.flow_grid{grid-template-columns:1fr}}

/* FAQ */
.faq_list{border-top:1px solid var(--line)}
.faq_item{border-bottom:1px solid var(--line)}
.faq_item summary{
  list-style:none;cursor:pointer;padding:22px 0;
  display:flex;align-items:center;justify-content:space-between;gap:20px;
  font-size:16.5px;font-weight:700
}
.faq_item summary::-webkit-details-marker{display:none}
.faq_item summary .faq_icon{
  width:26px;height:26px;border:1px solid var(--line_strong);border-radius:50%;
  position:relative;flex-shrink:0
}
.faq_item summary .faq_icon::before,.faq_item summary .faq_icon::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--ink);
  transform:translate(-50%,-50%)
}
.faq_item summary .faq_icon::before{width:10px;height:1.5px}
.faq_item summary .faq_icon::after{width:1.5px;height:10px;transition:transform .2s ease}
.faq_item[open] summary .faq_icon::after{transform:translate(-50%,-50%) rotate(90deg)}
.faq_item[open] summary{color:var(--accent)}
.faq_body{padding:0 clamp(20px,4vw,48px) 24px 0;font-size:14.5px;line-height:1.85;color:var(--muted);max-width:52em}

/* 行业方案 */
.scene_list{display:flex;flex-direction:column}
.scene_item{
  display:grid;grid-template-columns:110px minmax(0,1fr) minmax(0,.9fr);
  gap:clamp(18px,3vw,48px);padding:clamp(28px,4vw,52px) 0;
  border-top:1px solid var(--line);align-items:start
}
.scene_item:last-child{border-bottom:1px solid var(--line)}
.scene_no{font-family:var(--mono);font-size:12px;color:var(--muted);padding-top:8px}
.scene_main h2{font-size:clamp(24px,2.8vw,36px);line-height:1.15;font-weight:800}
.scene_main p{font-size:14.5px;line-height:1.85;color:var(--muted);margin-top:12px;max-width:34em}
.scene_side{display:flex;flex-direction:column;gap:14px}
.scene_side .chip_row{gap:7px}
.scene_side .chip{font-size:11px;color:var(--muted);border-color:var(--line_strong)}
.scene_side .link_arrow{align-self:flex-start;font-size:13px;color:var(--ink)}
.scene_result{font-size:12px;color:var(--accent);font-family:var(--mono)}
@media (max-width:900px){
  .scene_item{grid-template-columns:44px 1fr;gap:12px 18px}
  .scene_side{grid-column:2}
}

/* 能力矩阵 */
.matrix_wrap{overflow-x:auto;border:1px solid var(--line);border-radius:var(--r_m);background:var(--paper)}
.matrix{width:100%;border-collapse:collapse;min-width:780px}
.matrix th,.matrix td{padding:16px 20px;text-align:left;border-bottom:1px solid var(--line);font-size:13.5px;color:var(--ink)}
.matrix th{
  background:var(--ink);color:var(--warm);font-weight:700;font-size:11.5px;
  font-family:var(--mono);white-space:nowrap
}
.matrix td:first-child{font-weight:800;font-size:14.5px}
.matrix tbody tr:nth-child(even) td{background:rgba(34,28,90,.035)}
.matrix tr:last-child td{border-bottom:0}
.matrix .m_tag{
  display:inline-flex;align-items:center;justify-content:center;min-width:58px;
  font-size:11.5px;font-weight:700;line-height:1.4;padding:4px 11px;border-radius:999px;white-space:nowrap
}
.matrix .m_tag_full{background:var(--ink);color:var(--warm)}
.matrix .m_tag_part{background:transparent;color:var(--ink);border:1px solid rgba(34,28,90,.34);font-weight:600}
.matrix_note{font-size:12px;color:var(--muted_light);margin-top:14px}

/* 案例页 */
.confid{
  display:flex;align-items:flex-start;gap:10px;padding:16px 20px;
  border:1px solid var(--line);border-radius:var(--r_s);background:var(--warm);
  font-size:12.5px;color:var(--muted);line-height:1.7;max-width:64em
}
.confid svg{width:16px;height:16px;flex-shrink:0;margin-top:2px;color:var(--ink)}
.deep_case{
  display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);
  gap:clamp(24px,4vw,56px);padding:clamp(36px,6vw,72px) 0;border-top:1px solid var(--line)
}
.deep_case:first-of-type{border-top:0;padding-top:0}
.deep_media{
  border-radius:var(--r_l);overflow:hidden;border:1px solid var(--line);
  background:var(--warm);aspect-ratio:4/3;position:relative
}
.deep_media img{width:100%;height:100%;object-fit:cover}
.deep_media .deep_tag{
  position:absolute;top:16px;left:16px;background:var(--ink);color:var(--warm);
  font-size:11px;font-weight:700;padding:6px 13px;border-radius:999px
}
.deep_body .deep_kicker{font-family:var(--mono);font-size:11px;color:var(--accent);margin-bottom:12px}
.deep_body h3{font-size:clamp(24px,2.8vw,38px);line-height:1.18;font-weight:800}
.deep_body .deep_sum{font-size:14.5px;line-height:1.85;color:var(--muted);margin-top:12px}
.deep_rows{margin-top:22px;display:flex;flex-direction:column}
.deep_row{display:grid;grid-template-columns:76px 1fr;gap:12px;padding:11px 0;border-top:1px solid var(--line)}
.deep_row dt{font-family:var(--mono);font-size:10.5px;color:var(--muted);padding-top:2px}
.deep_row dd{font-size:13.5px;line-height:1.7}
.deep_body .chip_row{margin-top:20px}
.deep_body .chip{font-size:11px;color:var(--muted);border-color:var(--line_strong)}
@media (max-width:900px){
  .deep_case{grid-template-columns:1fr;gap:24px}
  .deep_media{aspect-ratio:16/10}
}

.mini_grid{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}
.mini_case{
  border:1px solid var(--line);border-radius:var(--r_m);overflow:hidden;background:var(--paper);
  display:flex;flex-direction:column
}
.mini_cover{
  aspect-ratio:4/3;padding:16px;display:flex;flex-direction:column;justify-content:space-between;
  position:relative
}
.mini_cover .mc_no{font-family:var(--mono);font-size:10.5px;opacity:.65}
.mini_cover .mc_word{font-size:clamp(22px,2.2vw,30px);line-height:1;font-weight:900}
.mini_cover svg{position:absolute;right:12px;bottom:12px;width:40px;height:40px;opacity:.85}
.mini_body{padding:16px;display:flex;flex-direction:column;gap:6px;flex:1}
.mini_body h4{font-size:15px;font-weight:800;line-height:1.4}
.mini_body p{font-size:12px;color:var(--muted);line-height:1.65}
.mini_body .chip_row{margin-top:auto;padding-top:10px}
.mini_body .chip{font-size:10px;padding:3px 9px;color:var(--muted);border-color:var(--line)}
@media (max-width:1024px){.mini_grid{grid-template-columns:1fr 1fr}}
@media (max-width:560px){.mini_grid{grid-template-columns:1fr}}

/* H5案例画廊 */
.h5_grid{
  display:grid;grid-template-columns:repeat(5,1fr);
  gap:clamp(10px,1.4vw,18px)
}
.h5_card{
  display:flex;flex-direction:column;gap:10px
}
.h5_media{
  position:relative;border-radius:var(--r_s);overflow:hidden;
  border:1px solid var(--line);background:var(--warm);aspect-ratio:3/4
}
.h5_media img{width:100%;height:100%;object-fit:cover;object-position:top center}
.h5_body{display:flex;align-items:baseline;justify-content:space-between;gap:8px;padding:0 2px}
.h5_body h3{font-size:13px;font-weight:700;line-height:1.4;color:var(--ink)}
.h5_body span{font-family:var(--mono);font-size:10.5px;color:var(--muted);white-space:nowrap}
@media (max-width:1024px){.h5_grid{grid-template-columns:repeat(4,1fr)}}
@media (max-width:860px){.h5_grid{grid-template-columns:repeat(3,1fr)}}
@media (max-width:560px){.h5_grid{grid-template-columns:repeat(2,1fr)}}

/* 关于页 */
.about_story{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);gap:clamp(24px,5vw,72px)}
.about_story h2{font-size:clamp(28px,3.8vw,50px);line-height:1.14;font-weight:800;text-wrap:balance}
.about_story h2 em{font-style:normal;color:var(--accent)}
.about_text{display:flex;flex-direction:column;gap:16px;font-size:15px;line-height:1.9;color:var(--muted)}
.about_text strong{color:var(--ink)}
.about_pull{
  margin-top:6px;padding:18px 22px;border-left:3px solid var(--lilac);
  background:var(--warm);font-size:15px;font-weight:700;line-height:1.7;color:var(--ink)
}
@media (max-width:900px){.about_story{grid-template-columns:1fr}}

.timeline{display:flex;flex-direction:column;border-top:1px solid var(--line_dark)}
.tl_item{
  display:grid;grid-template-columns:130px 1fr;gap:clamp(14px,3vw,40px);
  padding:24px 0;border-bottom:1px solid var(--line_dark);align-items:start
}
.tl_year{font-family:var(--mono);font-size:clamp(20px,2.4vw,30px);font-weight:700;color:var(--lilac)}
.tl_body h4{font-size:17px;font-weight:800;color:var(--warm)}
.tl_body p{font-size:13.5px;line-height:1.75;color:var(--muted_light);margin-top:4px;max-width:44em}
@media (max-width:600px){
  .tl_item{grid-template-columns:1fr;gap:4px}
}

.value_grid{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}
.value_card{border:1px solid var(--line);border-radius:var(--r_m);padding:24px;background:var(--paper)}
.value_card .vc_no{font-family:var(--mono);font-size:11px;color:var(--accent)}
.value_card h4{font-size:19px;font-weight:800;margin-top:22px}
.value_card p{font-size:13px;line-height:1.75;color:var(--muted);margin-top:8px}
@media (max-width:900px){.value_grid{grid-template-columns:1fr 1fr}}
@media (max-width:520px){.value_grid{grid-template-columns:1fr}}

.team_grid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}
.team_card{border-top:2px solid var(--ink);padding-top:14px}
.team_card b{font-family:var(--mono);font-size:10.5px;color:var(--muted)}
.team_card h4{font-size:17px;font-weight:800;margin-top:8px}
.team_card p{font-size:12.5px;line-height:1.7;color:var(--muted);margin-top:5px}
@media (max-width:820px){.team_grid{grid-template-columns:1fr 1fr}}
@media (max-width:520px){.team_grid{grid-template-columns:1fr}}

.tri_grid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}
@media (max-width:820px){.tri_grid{grid-template-columns:1fr}}

.facts{display:grid;grid-template-columns:1fr 1fr;gap:0 clamp(24px,4vw,64px);border-top:1px solid var(--line)}
.fact{display:grid;grid-template-columns:104px 1fr;gap:16px;padding:16px 0;border-bottom:1px solid var(--line);font-size:14px}
.fact dt{font-family:var(--mono);font-size:11px;color:var(--muted);padding-top:3px}
.fact dd{font-weight:600;line-height:1.6}
@media (max-width:700px){.facts{grid-template-columns:1fr}}

/* 联系页 */
.contact_hero_mail{
  display:inline-flex;align-items:center;gap:14px;flex-wrap:wrap;
  font-size:clamp(24px,4vw,52px);font-weight:800;line-height:1.1;
  border-bottom:2px solid var(--lilac);padding-bottom:8px;margin-top:30px;
  transition:color .2s ease,border-color .2s ease
}
.contact_hero_mail:hover{color:var(--lilac)}
.contact_hero_mail svg{width:clamp(20px,2.4vw,30px);height:clamp(20px,2.4vw,30px);color:var(--lilac)}

.contact_grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:clamp(24px,5vw,72px)}
.contact_block{border-top:1px solid var(--line);padding-top:24px}
.contact_block .cb_label{font-family:var(--mono);font-size:11px;color:var(--accent);margin-bottom:10px}
.contact_block h3{font-size:clamp(22px,2.6vw,32px);line-height:1.25;font-weight:800}
.contact_block p{font-size:14px;color:var(--muted);line-height:1.85;margin-top:10px}
.contact_block .cb_strong{font-size:18px;font-weight:800;color:var(--ink);margin-top:6px}
.coord{
  display:inline-flex;align-items:center;gap:8px;font-family:var(--mono);font-size:11px;
  color:var(--muted);margin-top:14px
}
.coord::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--purple)}

.mode_list{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.mode_card{border:1px solid var(--line);border-radius:var(--r_m);padding:22px;background:var(--paper)}
.mode_card .mc_no{font-family:var(--mono);font-size:10.5px;color:var(--muted)}
.mode_card h4{font-size:16.5px;font-weight:800;margin-top:10px}
.mode_card p{font-size:12.5px;color:var(--muted);line-height:1.75;margin-top:6px}
@media (max-width:700px){.mode_list{grid-template-columns:1fr}}

.need_list{display:flex;flex-direction:column;border-top:1px solid var(--line)}
.need_item{display:grid;grid-template-columns:34px 1fr;gap:14px;padding:14px 0;border-bottom:1px solid var(--line)}
.need_item b{font-family:var(--mono);font-size:11px;color:var(--accent);padding-top:2px}
.need_item span{font-size:14px;line-height:1.7}
.need_item span small{display:block;font-size:12px;color:var(--muted);margin-top:2px}

.contact_map{
  margin-top:var(--sec);border-radius:var(--r_l);overflow:hidden;border:1px solid var(--line);
  background:var(--warm);aspect-ratio:21/9;position:relative
}
.contact_map svg{width:100%;height:100%;display:block}
.map_tag{
  position:absolute;left:24px;bottom:24px;background:var(--ink);color:var(--warm);
  padding:14px 18px;border-radius:var(--r_s);font-size:12px;line-height:1.6
}
.map_tag b{display:block;font-size:13px;font-weight:800;color:var(--lilac)}
@media (max-width:700px){.contact_map{aspect-ratio:4/3}.map_tag{left:14px;bottom:14px;padding:10px 14px}}
@media (max-width:860px){
  .contact_grid{grid-template-columns:1fr;gap:clamp(28px,6vw,44px)}
}
@media (max-width:560px){
  .contact_block h3{font-size:clamp(18px,5.2vw,24px)}
  .contact_block h3 a,.contact_hero_mail,.fb_mail{word-break:break-all}
}

/* 洞察索引 */
.insight_feature{
  display:grid;grid-template-columns:minmax(0,1.1fr) minmax(0,.9fr);
  gap:clamp(24px,4vw,56px);align-items:center;
  border-bottom:1px solid var(--line);padding-bottom:clamp(30px,5vw,56px);margin-bottom:clamp(30px,5vw,56px)
}
.insight_feature .if_cover{
  border-radius:var(--r_l);aspect-ratio:16/10;padding:clamp(20px,3vw,32px);
  display:flex;flex-direction:column;justify-content:space-between;position:relative;overflow:hidden
}
.if_cover .if_num{font-family:var(--mono);font-size:11px;opacity:.7}
.if_cover .if_word{font-size:clamp(40px,6vw,80px);font-weight:900;line-height:.92}
.if_cover .if_word span{display:block}
.if_cover .if_mark{position:absolute;right:clamp(20px,3vw,32px);bottom:clamp(18px,2.6vw,28px);width:clamp(48px,6vw,76px);height:clamp(48px,6vw,76px);opacity:.9}
.if_body .if_kicker{font-family:var(--mono);font-size:11px;color:var(--accent);margin-bottom:12px}
.if_body h2{font-size:clamp(26px,3.4vw,44px);line-height:1.18;font-weight:800}
.if_body h2 em{font-style:normal;color:var(--accent)}
.if_body p{font-size:14px;line-height:1.85;color:var(--muted);margin-top:14px;max-width:32em}
.if_body .insight_meta{margin-top:18px}
.if_body .link_arrow{margin-top:20px}
@media (max-width:900px){.insight_feature{grid-template-columns:1fr}}

/* 文章 */
.article_band{
  background:var(--ink);color:var(--warm);
  padding:calc(78px + clamp(36px,6vw,66px)) 0 clamp(32px,5vw,56px)
}
.article_head{max-width:900px}
.article_head .art_kicker{
  display:inline-flex;align-items:center;gap:8px;font-family:var(--mono);font-size:11px;
  color:var(--ink);background:var(--lilac);padding:5px 12px;border-radius:999px;margin-bottom:22px
}
.article_head h1{font-size:clamp(32px,5.4vw,68px);line-height:1.08;font-weight:900;text-wrap:balance}
.article_head .art_lead{
  margin-top:20px;font-size:clamp(15px,1.5vw,17px);line-height:1.85;color:var(--muted_light);max-width:40em
}
.article_meta{
  display:flex;flex-wrap:wrap;gap:10px 24px;margin-top:28px;padding-top:18px;
  border-top:1px solid var(--line_dark);font-family:var(--mono);font-size:11px;color:var(--muted_light)
}
.article_meta span{display:inline-flex;align-items:center;gap:7px}
.article_meta span::before{content:"";width:4px;height:4px;border-radius:50%;background:var(--accent)}

.article_body{
  max-width:760px;margin:0 auto;padding:clamp(40px,6vw,80px) 0 0;
  font-size:16.5px;line-height:1.95
}
.article_body p{margin-bottom:1.4em}
.article_body h2{
  font-size:clamp(22px,2.6vw,32px);line-height:1.3;font-weight:800;
  margin:2.4em 0 .8em;padding-top:6px;display:flex;gap:14px;align-items:baseline
}
.article_body h2 .h_num{font-family:var(--mono);font-size:12px;color:var(--accent);font-weight:500;flex-shrink:0}
.article_body h3{font-size:19px;line-height:1.5;font-weight:800;margin:1.8em 0 .6em}
.article_body ul,.article_body ol{margin:0 0 1.4em;padding-left:0}
.article_body ul li{padding-left:20px;position:relative;margin-bottom:.55em}
.article_body ul li::before{
  content:"";position:absolute;left:0;top:.72em;width:7px;height:7px;
  background:var(--purple);border-radius:2px
}
.article_body ol{counter-reset:art}
.article_body ol li{padding-left:28px;position:relative;margin-bottom:.6em;counter-increment:art}
.article_body ol li::before{
  content:counter(art,decimal-leading-zero);position:absolute;left:0;top:.18em;
  font-family:var(--mono);font-size:11px;color:var(--accent)
}
.article_body strong{font-weight:700}
.article_body a{border-bottom:1px solid var(--purple);color:var(--purple)}
.article_quote{
  margin:2em 0;padding:24px 26px;background:var(--warm);border-left:3px solid var(--lilac);
  font-size:17px;font-weight:600;line-height:1.8
}
.article_note{
  margin:2em 0;padding:20px 22px;border:1px solid var(--line);border-radius:var(--r_s);
  background:var(--paper);font-size:13.5px;line-height:1.8;color:var(--muted)
}
.article_note b{color:var(--ink);display:block;font-size:12px;font-family:var(--mono);margin-bottom:6px}
.article_figure{margin:2em 0}
.article_figure .af_box{
  border-radius:var(--r_m);border:1px solid var(--line);background:var(--warm);
  aspect-ratio:16/9;display:flex;align-items:center;justify-content:center;overflow:hidden
}
.article_figure .af_box svg{width:100%;height:100%}
.article_figure figcaption{font-size:12px;color:var(--muted);margin-top:10px;text-align:center}
.article_tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:2.4em;padding-top:24px;border-top:1px solid var(--line)}
.article_tags .chip{font-size:11px;color:var(--muted);border-color:var(--line_strong)}

.article_next{margin-top:clamp(36px,5vw,60px);border-top:1px solid var(--line);padding-top:28px}
.article_next .an_label{font-family:var(--mono);font-size:11px;color:var(--muted);margin-bottom:14px}
.article_next a{
  display:flex;align-items:center;justify-content:space-between;gap:20px;
  font-size:clamp(18px,2.2vw,26px);font-weight:800;line-height:1.3;padding:14px 0
}
.article_next a:hover{color:var(--accent)}
.article_next a svg{width:20px;height:20px;flex-shrink:0}

.article_related{padding:0 0 var(--sec)}
.related_grid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}
@media (max-width:860px){.related_grid{grid-template-columns:1fr}}

/* 页脚 */
.site_footer{background:var(--ink);color:var(--warm);padding:clamp(48px,7vw,90px) 0 0;overflow:hidden}
.footer_top{display:grid;grid-template-columns:minmax(0,1.2fr) minmax(0,1.8fr);gap:clamp(28px,5vw,64px);align-items:start}
.footer_brand{display:flex;flex-direction:column;gap:16px}
.footer_brand .fb_logo{display:inline-flex;align-items:center;gap:12px}
.footer_brand .fb_logo svg{width:38px;height:38px}
.footer_brand .fb_logo strong{font-size:19px;font-weight:800}
.footer_brand p{font-size:13px;line-height:1.8;color:var(--muted_light);max-width:24em}
.footer_brand .fb_slogan{font-size:16px;font-weight:800;color:var(--warm);line-height:1.5;margin-bottom:-8px}
.footer_brand .fb_desc{font-size:12.5px;color:var(--muted_light)}
.footer_brand .fb_mail{
  display:inline-flex;align-items:center;gap:8px;font-size:14px;font-weight:700;
  border-bottom:1px solid var(--line_dark);padding-bottom:3px;align-self:flex-start
}
.footer_brand .fb_mail:hover{color:var(--lilac);border-color:var(--lilac)}
.footer_cols{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.footer_col h4{font-family:var(--mono);font-size:10.5px;color:var(--muted_light);margin-bottom:14px}
.footer_col ul{display:flex;flex-direction:column;gap:9px}
.footer_col a,.footer_col span{font-size:13px;color:rgba(243,241,246,.86);line-height:1.6}
.footer_col a:hover{color:var(--lilac)}
.footer_giant{
  margin:clamp(36px,6vw,64px) 0 0;
  font-size:clamp(64px,13vw,190px);line-height:.82;font-weight:900;
  color:transparent;-webkit-text-stroke:1px rgba(243,241,246,.24);
  white-space:nowrap;user-select:none
}
.footer_bottom{
  margin-top:clamp(24px,4vw,40px);padding:20px 0 26px;border-top:1px solid var(--line_dark);
  display:flex;flex-wrap:wrap;gap:12px 28px;align-items:center;justify-content:space-between;
  font-size:11.5px;color:var(--muted_light)
}
.footer_bottom .fb_links{display:flex;flex-wrap:wrap;gap:14px}
.footer_bottom a:hover{color:var(--lilac)}
.footer_bottom .fb_meta{display:flex;flex-wrap:wrap;gap:14px}
@media (max-width:900px){
  .footer_top{grid-template-columns:1fr}
  .footer_cols{grid-template-columns:1fr 1fr}
}
@media (max-width:560px){
  .footer_cols{grid-template-columns:1fr}
  .footer_bottom{flex-direction:column;align-items:flex-start}
}

/* 404 */
.err_page{
  min-height:100vh;background:var(--ink);color:var(--warm);
  display:flex;flex-direction:column;justify-content:center;
  padding:140px 0 80px
}
.err_code{
  font-size:clamp(120px,26vw,380px);line-height:.8;font-weight:900;
  color:transparent;-webkit-text-stroke:1.5px rgba(243,241,246,.3)
}
.err_body{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:clamp(20px,4vw,60px);align-items:end;margin-top:clamp(24px,4vw,40px)}
.err_body h1{font-size:clamp(26px,4vw,48px);line-height:1.15;font-weight:900}
.err_body p{font-size:14px;line-height:1.8;color:var(--muted_light);max-width:28em}
.err_actions{display:flex;flex-wrap:wrap;gap:10px;margin-top:20px}
.err_note{font-family:var(--mono);font-size:12px;color:var(--muted_light)}
.err_note a{border-bottom:1px solid var(--line_dark)}
.err_note a:hover{color:var(--lilac)}
@media (max-width:820px){.err_body{grid-template-columns:1fr}}

/* 显现动效 */
.has_js .reveal{opacity:0;transform:translateY(18px);transition:opacity .7s cubic-bezier(.2,.6,.2,1),transform .7s cubic-bezier(.2,.6,.2,1)}
.has_js .reveal.is_in{opacity:1;transform:none}
.reveal_d1{transition-delay:.08s}
.reveal_d2{transition-delay:.16s}
.reveal_d3{transition-delay:.24s}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .has_js .reveal{opacity:1;transform:none;transition:none}
}

/* 工具 */
.sr_only{
  position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;
  clip:rect(0,0,0,0);white-space:nowrap;border:0
}
.mt_s{margin-top:14px}
.mt_m{margin-top:24px}
.mt_l{margin-top:38px}
.text_muted{color:var(--muted)}
.divider{height:1px;background:var(--line);border:0}

@media (max-width:760px){
  body{font-size:16px}
  .sec_head{grid-template-columns:1fr;align-items:start}
  .sec_head .sec_lead{padding-bottom:0}
  .btn{height:50px;padding:0 22px;font-size:14px}
}