/* 青蓝湖绿主题，配合公众号彩色标志 */
.card{position:relative}
.card-open{color:inherit;text-decoration:none}
.card-open::after{content:"";position:absolute;inset:0;z-index:1;cursor:pointer}
.card-open:focus-visible{outline:none}
.card-open:focus-visible::after{outline:3px solid #087cb8;outline-offset:-4px;border-radius:14px}
.card-download{position:relative;z-index:2}
.bottom .open-hint{color:#0879ad;font-size:12px}
:root{--ink:#193f58;--muted:#56778a;--green:#087faf;--line:#d7e8ed}
body{background:#f0f8fc;color:var(--ink)}
header{background:#fff;border-top-color:#0b93bb;box-shadow:0 3px 18px #15739b09}
.brand strong{color:#086b9c}.brand small{color:#587a8d}
.search{background:#eff8fd;border-color:#cde6f0;color:#194962;border-radius:10px}
.search::placeholder{color:#617f8e}
aside{background:#fbfeff;border-color:#dcebf1}.school{color:#087da8;font-weight:bold}
.nav-caption,.crumb,.count{color:#547589}.grade{color:#244d65}
.term{color:#567287;border-radius:8px}.term.active,.grade.active{background:linear-gradient(110deg,#0879b5,#08a5ac);color:#fff;border-radius:8px;box-shadow:0 3px 10px #0789a821}
.aside-note{color:#577587;border-color:#dbeaf0}
.hero{background:linear-gradient(115deg,#dcf3ff 0%,#e4faf5 70%,#fff5d9 100%);border-left:4px solid #08a1b3;border-radius:16px;box-shadow:0 6px 24px #0c82920a}
.hero h1{color:#086696}.eyebrow{color:#087f8e}.hero p{color:#3c6b7c}.hero-logo{mix-blend-mode:multiply}
.tab{color:#466e83;border-radius:9px}.tab.active{background:linear-gradient(115deg,#087cb8,#0b9fa8);border-color:transparent;color:#fff;box-shadow:0 4px 12px #008bab20}
.card{background:#fff;border-color:#d5e7ee;border-radius:14px}.card:hover{border-color:#8dc9dd;box-shadow:0 10px 25px #107ca21a}
.cover{background:linear-gradient(130deg,#d4f1ff,#d6f5ee);border-color:#c9e8ee}.cover.pdf{background:linear-gradient(125deg,#fff0d3,#ffe3d2)}
.cover svg{filter:hue-rotate(55deg) saturate(1.7)}
.badge{border-color:#9ddae9;background:#f7feffed;color:#076d90;border-radius:6px}.pdf .badge{border-color:#f1c395;color:#9a4d17;background:#fffaf0}
.paper{box-shadow:5px 7px 0 #eac6a2;color:#654d3b}.paper hr{border-color:#e7d8c6}
.tags{color:#177d96}.body h2{color:#194f70}.body p{color:#567284}.bottom{border-color:#e1edf2}.bottom span{color:#5e7888}.bottom a{color:#0879ad;border-color:#8dc9e4}
.empty{background:#fbfeff;border-color:#accfdf;color:#567587}.empty h2{color:#17688a}footer{color:#5b7a8b;border-color:#d5e7ef}
button:focus-visible,a:focus-visible,input:focus-visible{outline-color:#e49a32}
@media(max-width:480px){.term.active{border-radius:8px}}